Modifica L'iPhone continua a riavviarsi

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-	So, your phone is stuck in an infinite boot loop. Every time the Apple logo comes around again, or you get a successful boot, you think it's going to be okay. But then, your hopes are dashed when the screen goes black... again. This is one of the most difficult iPhone issues to pin down, due to a wide ~~variation~~ of causes. But that just means more chances at getting a fix!
+	So, your phone is stuck in an infinite boot loop. Every time the Apple logo comes around again, or you get a successful boot, you think it's going to be okay. But then, your hopes are dashed when the screen goes black... again. This is one of the most difficult iPhone issues to pin down, due to a wide variety of causes. But that just means more chances at getting a fix!

-	== ~~First Steps~~ ==
+	== The Basics ==

-	Before undertaking any of the more time consuming solutions below, there are a few fundamentals to give a go.
+	Before undertaking any of the more time-consuming solutions below, there are a few fundamentals to give a go.

	* Connect to a known functional, or different charger. Your phone may not be getting enough energy to complete boot.
	* Perform a force restart. [link\|https://www.ifixit.com/Search?doctype=guide&query=iPhone%20Force%20Reset\|Consult the Guide for your model] if you are not familiar with this process.
	* If you can get into the OS, check for any software updates. This also includes app updates.
+	[comment]solutions[/comment]

	== Software Corruption or Conflict ==

-	During the course of using your phone, something in the ones and zeroes that makes it run might have been lost, or changed in a way that renders your device unusable. This is commonly a result of a botched update, an app ~~which~~ conflicts with functionality, or even a malicious piece of software.
+	During the course of using your phone, something in the ones and zeroes that makes it run might have been lost or changed in a way that renders your device unusable. This is commonly a result of a botched update, an app that conflicts with functionality, or even a malicious piece of software.

	To attempt to correct this, perform a reinstall of the operating system. If your phone will stay booted for long enough, you can try this from within the settings menu. Otherwise, you'll need to [guide\|133851\|get it into recovery mode\|new_window=true] to initiate this process.

-	* Try update first.
-	* If the update is unsuccessful, time to assess the state of your backups. If you're certain you have a recent backup, or are willing to sacrifice your data to regain use of your phone, proceed to restore. *This will erase any data presently on your phone.* If you would rather not erase the device, skip restore and try some of the [[iPhone Keeps Restarting#Section_Faulty_Charge_Port\|hardware fixes below~~\|new_window=true~~]] first.
+	* Try to update first.
+	* If the update is unsuccessful, time to assess the state of your backups. If you're certain you have a recent backup or are willing to sacrifice your data to regain the use of your phone, proceed to restore. *This will erase any data presently on your phone.* If you would rather not erase the device, skip restore and try some of the [[iPhone Keeps Restarting#Section_Faulty_Charge_Port\|hardware fixes below]] first.

	If the update or restore fails with an error message, document it. Now might be a good time to visit the [link\|https://www.ifixit.com/Answers\|Answers forum], where you can get more personalized help. Be sure to mention the error message in your question!

	Getting warnings that your device is low on storage? It’s easy to ignore, but computerized devices also need some free space to operate properly. Think of it like your sock drawer. You can squish any number of additional pairs of socks in, but eventually your drawer will stop closing. It’s possible your phone is in this “can no longer function as intended,” state.

-	* Try the force restart steps outlined at the [[iPhone Keeps Restarting#Section_First_Steps\|beginning of this page~~\|new_window=true~~]] again. A few times even. If you’re lucky, this may allow you the one successful boot you need to get in and clear out some of the five hundred blurry pictures of your puppy chasing a paper bag around the yard.
+	* Try the force restart steps outlined at the [[iPhone Keeps Restarting#Section_First_Steps\|beginning of this page]] again. A few times even. If you’re lucky, this may allow you the one successful boot you need to get in and clear out some of the five hundred blurry pictures of your puppy chasing a paper bag around the yard.
	* If this doesn’t work, ultimately you’re going to need to reset your device. Especially if you have gotten recent low storage warnings. If it’s not already in recovery mode, [guide\|133851\|you’ll need to get it there\|new_window=true] and restore your device.
	** This may be the underlying fault if you have received errors 14, 78, or 1110 when processing a recovery mode update.

	== Faulty Charge Port ==

-	The charge port and the connected interior flex cable are common points of failure on all iPhone models. It is prone to wear and easily exposed to the environment. This leads to inconsistent charging, and inability to maintain power for long enough to boot properly.
+	The charge port and the connected interior flex cable are common points of failure on all iPhone models. It is prone to wear and easily exposed to the environment. This leads to inconsistent charging, and the inability to maintain power for long enough to boot properly.

	* Inspect your charge port using a flashlight for better visibility. It is common for bits of lint or rubbish to get caught in the port and compress with repeat charging. To verify, check the fit of your cable. Does the lightning plug sit flush with the bottom of the phone? It should.

	** If a toothpick is too large, try splitting the tip with a knife. Half a toothpick can usually reach the most recessed crevices of a charge port.
	* A phone that only charges at particular angles, or intermittently in general, may need a new charge port assembly.
-	Note:** Be sure to source replacement charge part assemblies from reputable vendors or splurge for the higher quality part. [link\|https://www.youtube.com/watch?v=EIBHIhzRbI8&t=531s\|Substandard third party replacements] are rampant.
+	Note:** Be sure to source replacement charge part assemblies from reputable vendors or splurge for the higher quality part. Substandard third-party replacements are rampant.
+
+	[video\|https://youtu.be/EIBHIhzRbI8?t=48]

	== Faulty Battery ==


	* Check your battery health. Under ''Settings > Battery > Battery Health'' Does it say Service?
-	By Apple’s guidelines, anything with a capacity of less ~~that~~ 80% needs battery service, though it can detect other failures as well. If it says Service** here, a new battery is a reasonable start.
+	By Apple’s guidelines, anything with a capacity of less than 80% needs battery service, though it can detect other failures as well. If it says Service** here, a new battery is a reasonable start.
	** If it says your battery is performing as expected, see the breakdown of battery usage.
-	* Search for signs of [link\|https://www.ifixit.com/News/11211/what-to-do-with-a-swollen-iphone-battery\|battery swelling]. Is there localized screen discoloration on the left side (or right side for series 12 and newer iPhones). Is the screen lifting along one side?
-	* Replace the battery if there are any indications of failure. Exercise caution when handling the battery. Lithium-ion batteries can be hazardous if they are damaged.
+	* Search for signs of [link\|https://www.ifixit.com/News/11211/what-to-do-with-a-swollen-iphone-battery\|battery swelling]. Is there localized screen discoloration on the left side (or right side for series 12 and newer iPhones). Is the screen lifting along one side?
+	* Replace the battery with a [parts\|iPhone\|new one\|itemtype=batteries] if there are any indications of failure. Exercise caution when handling the battery. Lithium-ion batteries can be hazardous if they are damaged.

	== Missing Sensor Data ==

	== Logic Board ==

-	The logic board is the hub for the vast majority of an iPhone's functionality. Any number of the small components on the board may have failed or become damaged, and is a safe assumption of cause if nothing else on this page has worked.
+	The logic board is the hub for the vast majority of an iPhone's functionality. Any number of the small components on the board may have failed or become damaged and is a safe assumption of cause if nothing else on this page has worked.

-	* Check for obvious signs of a board issue - burned or cracked components, liquid residue, corrosion or bend. If there are signs of liquid the [guide\|95280\|iPhone Liquid Damage Guide\|new_window=true] might help.
-	* Replacing the logic board is often the most practical solution for a DIYer in this position.
-	* If you’re feeling especially curious, the tiny bits and chips on the board can be repaired by microsoldering. It is an art unto itself, but a worthy endeavor for those who are adventurous. Interested? Check out [link\|https://www.ifixit.com/News/7321/know-about-microsoldering\|this intro]! [link\|https://youtube.com/c/Mendonipadrehab\|Jessa’s YouTube channel] is also fantastic and has loads of real time repairs. If you can't do this sort of repair yourself, you may be able to find a local shop who can!
+	* Check for obvious signs of a board issue - burned or cracked components, liquid residue, corrosion, or bend. If there are signs of liquid the [guide\|95280\|iPhone Liquid Damage Guide\|new_window=true] might help.
+	* Replacing the logic board with a [parts\|iPhone\|new one\|itemtype=motherboards\|new_window=true] is often the most practical solution for a DIYer in this position.
+	* If you’re feeling especially curious, the tiny bits and chips on the board can be repaired by microsoldering. It is an art unto itself, but a worthy endeavor for those who are adventurous. Interested? Check out [link\|https://www.ifixit.com/News/7321/know-about-microsoldering\|this intro]! [link\|https://youtube.com/c/Mendonipadrehab\|Jessa’s YouTube channel] is also fantastic and has loads of real-time repairs. If you can't do this sort of repair yourself, you may be able to find a local shop who can!
+	[comment]conclusion[/comment]
+
+	== About the Author ==
+
+	Even before I was repairing phones, I was selling them. I never liked sales, but I did like phones. So I transitioned to repairing them. I hold an Apple ACiT certification, passing my exam shortly before the onslaught of “[link\|https://www.ifixit.com/News/11208/batterygate-timeline\|batterygate]” in 2018. I barely survived the year of the $29 iPhone battery replacement, but built up some serious repair chops.Eventually I wasn’t satisfied with the sot of repairs official Apple channels offered and stumbled into [link\|https://www.ifixit.com/News/6911/micro-soldering-mom\|iFixit’s article on Jessa Jones]. I caught the microsoldering bug and now I troubleshoot iPhones all the way down the logic board.

	== Related Pages ==

Inglese

Titolo della pagina

Mostra Titolo

Sommario

Your iPhone will not boot properly due to constant restarts, is boot looping, restarts shortly after boot or reboots at random.

Informazioni Aggiuntive

So, your phone is stuck in an infinite boot loop. Every time the Apple logo comes around again, or you get a successful boot, you think it's going to be okay. But then, your hopes are dashed when the screen goes black... again. This is one of the most difficult iPhone issues to pin down, due to a wide variety of causes. But that just means more chances at getting a fix!

== The Basics ==

Before undertaking any of the more time-consuming solutions below, there are a few fundamentals to give a go.

* Connect to a known functional, or different charger. Your phone may not be getting enough energy to complete boot.
* Perform a force restart. [link|https://www.ifixit.com/Search?doctype=guide&query=iPhone%20Force%20Reset|Consult the Guide for your model] if you are not familiar with this process.
* If you can get into the OS,  check for any software updates. This also includes app updates.
[comment]solutions[/comment]

== Software Corruption or Conflict ==

During the course of using your phone, something in the ones and zeroes that makes it run might have been lost or changed in a way that renders your device unusable. This is commonly a result of a botched update, an app that conflicts with functionality, or even a malicious piece of software.

To attempt to correct this, perform a reinstall of the operating system. If your phone will stay booted for long enough, you can try this from within the settings menu. Otherwise, you'll need to [guide|133851|get it into recovery mode|new_window=true] to initiate this process.

* Try to update first.
* If the update is unsuccessful, time to assess the state of your backups. If you're certain you have a recent backup or are willing to sacrifice your data to regain the use of your phone, proceed to restore. ***This will erase any data presently on your phone.*** If you would rather not erase the device, skip restore and try some of the [[iPhone Keeps Restarting#Section_Faulty_Charge_Port|hardware fixes below]] first.

If the update or restore fails with an error message, document it. Now might be a good time to visit the [link|https://www.ifixit.com/Answers|Answers forum], where you can get more personalized help. Be sure to mention the error message in your question!

== Storage Is Full ==

Getting warnings that your device is low on storage? It’s easy to ignore, but computerized devices also need some free space to operate properly. Think of it like your sock drawer. You can squish any number of additional pairs of socks in, but eventually your drawer will stop closing. It’s possible your phone is in this “can no longer function as intended,” state.

* Try the force restart steps outlined at the [[iPhone Keeps Restarting#Section_First_Steps|beginning of this page]] again. A few times even. If you’re lucky, this may allow you the one successful boot you need to get in and clear out some of the five hundred blurry pictures of your puppy chasing a paper bag around the yard.
* If this doesn’t work, ultimately you’re going to need to reset your device. Especially if you have gotten recent low storage warnings. If it’s not already in recovery mode, [guide|133851|you’ll need to get it there|new_window=true] and restore your device.
** This may be the underlying fault if you have received errors 14, 78, or 1110 when processing a recovery mode update.

== Faulty Charge Port ==

The charge port and the connected interior flex cable are common points of failure on all iPhone models. It is prone to wear and easily exposed to the environment. This leads to inconsistent charging, and the inability to maintain power for long enough to boot properly.

* Inspect your charge port using a flashlight for better visibility. It is common for bits of lint or rubbish to get caught in the port and compress with repeat charging. To verify, check the fit of your cable. Does the lightning plug sit flush with the bottom of the phone? It should.
* If there is debris in the port, use a toothpick or other non conductive probe to clear it. Insert the point straight to the back and gently scrape out residual debris. Be mindful of the pins.
** If a toothpick is too large, try splitting the tip with a knife. Half a toothpick can usually reach the most recessed crevices of a charge port.
* A phone that only charges at particular angles, or intermittently in general, may need a new charge port assembly.
** ***Note:*** Be sure to source replacement charge part assemblies from reputable vendors or splurge for the higher quality part. Substandard third-party replacements are rampant.

[video|https://youtu.be/EIBHIhzRbI8?t=48]

== Faulty Battery ==

We are likely all aware that all rechargeable batteries degrade over time. This can lead to poor battery life. But batteries can fail in any number of other ways, which can lead to unexpected restarts.

* Check your battery health. Under ''Settings > Battery > Battery Health'' Does it say Service?
** By Apple’s guidelines, anything with a capacity of less than 80% needs battery service, though it can detect other failures as well. If it says ***Service*** here, a new battery is a reasonable start.
** If it says your battery is performing as expected, see the breakdown of battery usage.
* Search for signs of [link|https://www.ifixit.com/News/11211/what-to-do-with-a-swollen-iphone-battery|battery swelling]. Is there localized screen discoloration on the left side (or right side for series 12 and newer iPhones). Is the screen lifting along one side?
* Replace the battery with a [parts|iPhone|new one|itemtype=batteries] if there are any indications of failure. Exercise caution when handling the battery. Lithium-ion batteries can be hazardous if they are damaged.

== Missing Sensor Data ==

Starting with the iPhone X, Apple rolled out a sensor check routine as part of normal function. Any sensor in a predetermined list needs to send out a signal every 180 seconds, or the phone will restart as a protective measure.

* This is almost certainly the cause if your phone boots normally, but will only stay on for three minutes before restarting.
* Check the logs, a place iPhone owners seldom tread.
## Under ''Settings > Privacy > Analytics'' and ''Improvements > Analytics Data.'' Scroll through for any entries with panic or panic.full in the name.
## Find the ***panic string***.
## Missing sensor errors will show as ***thermalmonitord*** or ***watchdog timeout***. If your panic string is different, look for keywords to give you clues. Refer to the [[iPhone Kernel Panics|expanding page of panics|new_window=true]].  Or [link|https://www.ifixit.com/Answers|post in the answers forum] for the community to look at!
## For a watchdog timeout or thermalonitord panic, read past the panic string to find the missing sensor.
## Reseat the connectors for the indicated parts. Inspect them for signs of damage or malfunction. Replace if necessary.

{table
|width=100%
|format=30%cm:cm:cm:cm
|! Missing Sensor
|! Location
|! Likely Issue
|--
| PRS0 - Barometer[br]
| <<rowspan="2">> On the Charge Port Assembly[br]
| <<rowspan="2">> Charge Port Assembly or its connector on the Logic Board
|--
| Mic1 - Bottom Microphone
|--
| Mic2 - Rear Microphone[br]
| Power Button Cable, Camera Flash Cable
| Power Button Cable, Camera Flash Cable or its respective connector on the Logic Board
|--
| TG0V
| <<rowspan="2">> Battery sensors, most likely for temperature and voltage
| <<rowspan="2">> Battery or its connector on the Logic Board, Charge Port Assembly on 11 Pro and Pro Max,  charging circuitry on the board level.
|--
| TG0B
}

== Faulty Peripheral ==

Ultimately, nearly every signal within an iPhone is going to, or coming from within the board. Disruption of these necessary communications to connected hardware can also cause restarting.

* Boot up on a minimal hardware configuration,
## Open up the device and disconnect anything that is not necessary for you to power on the phone. For most iPhones, this means a battery, a charge port and a display (so you know it’s booting). If you’re not sure how to open your phone, [[Topic:iPhone|check the Guides Page|new_window=true]].
## Connect a charger or USB cable to prompt the phone to boot.
## If the phone boots normally on the minimal setup, reconnect parts one by one. Be suspicious of the home button and front facing camera cables
* You can narrow down from the minimum configuration by eliminating the charge port and using the power button flex cable instead. Or eliminate the screen by connecting to a PC and verifying it stays connected.

== Liquid Damage ==

The best laid plans sometimes end with your phone in the toilet. Even if your phone seems perfectly fine, it might not be. It only takes one tiny droplet of water in the wrong place to wreak havoc on a circuit board.

[image|2751756]

* If there is any chance your phone may have gotten wet, check the liquid damage indicator.
* [link|https://www.ifixit.com/Search?doctype=guide&query=iPhone%20sim%20replacement|Eject your SIM tray] and use a flashlight to peek inside. The liquid contact sticker is on the underside of the display. It can be tricky to spot, but it will be  red if it has contacted liquid and white if it's dry.
* A red sticker isn't a guarantee that your phone is loaded with last night's cocktail, but it warrants further investigating. Open your device using the appropriate Guide and make use of the [guide|95280|iPhone Liquid damage Guide|new_window=true] if need be.
* If you subscribe to the [link|https://www.ifixit.com/News/30047/rice-is-for-dinner-not-repair|leave it in rice myth]—reevaluate! it might save your phone.

== Logic Board ==

The logic board is the hub for the vast majority of an iPhone's functionality. Any number of the small components on the board may have failed or become damaged and is a safe assumption of cause if nothing else on this page has worked.

* Check for obvious signs of a board issue - burned or cracked components, liquid residue, corrosion, or bend.  If there are signs of liquid the [guide|95280|iPhone Liquid Damage Guide|new_window=true] might help.
* Replacing the logic board with a [parts|iPhone|new one|itemtype=motherboards|new_window=true] is often the most practical solution for a DIYer in this position.
* If you’re feeling especially curious, the tiny bits and chips on the board can be repaired by microsoldering. It is an art unto itself, but a worthy endeavor for those who are adventurous. Interested? Check out [link|https://www.ifixit.com/News/7321/know-about-microsoldering|this intro]! [link|https://youtube.com/c/Mendonipadrehab|Jessa’s YouTube channel] is also fantastic and has loads of real-time repairs. If you can't do this sort of repair yourself, you may be able to find a local shop who can!
[comment]conclusion[/comment]

== About the Author ==

Even before I was repairing phones, I was selling them. I never liked sales, but I did like phones. So I transitioned to repairing them. I hold an Apple ACiT certification, passing my exam shortly before the onslaught of “[link|https://www.ifixit.com/News/11208/batterygate-timeline|batterygate]” in 2018. I barely survived the year of the $29 iPhone battery replacement, but built up some serious repair chops.Eventually I wasn’t satisfied with the sot of repairs official Apple channels offered and stumbled into [link|https://www.ifixit.com/News/6911/micro-soldering-mom|iFixit’s article on Jessa Jones]. I caught the microsoldering bug and now I troubleshoot iPhones all the way down the logic board.

== Related Pages ==

* [[iPhone Stuck on Apple Logo|iPhone Stuck on Apple Logo|new_window=true]]
* [[iPhone Overheating|iPhone Overheating|new_window=true]]
* [[iPhone Frozen Screen|iPhone Frozen Screen|new_window=true]]
* [[iPhone Black Screen|iPhone Black Screen|new_window=true]]
* [[iPhone Randomly Shuts Off|iPhone Randomly Shuts Off|new_window=true]]

Italiano

[title|L'iPhone continua a riavviarsi]

[summary]Il tuo iPhone non si avvia correttamente a causa di riavvii continui, è bloccato in un ciclo di riavvio, si riavvia subito dopo essersi acceso o si riavvia a caso.[/summary]

[summary_image|2708703]

Il tuo cellulare è bloccato in un ciclo continuo di riavvii. Ogni volta che compare il logo Apple, o che il telefono si avvia correttamente, pensi vada tutto bene. Ma poi, le tue speranze vanno in fumo quando lo schermo diventa nero... di nuovo. Questo è uno dei problemi di un iPhone più difficili da individuare, a causa della varietà delle cause. Ma questo significa solo che ci sono più possibilità di riuscire a ripararlo!

== Primi passi ==

Prima di intraprendere una delle soluzioni più lunghe e complicate qui sotto, ecco alcuni elementi fondamentali da provare.

* Collega l'iPhone a un caricatore diverso o che sai per certo che funziona. Il tuo telefono potrebbe non ricevere abbastanza energia per concludere l'avvio.
* Esegui un riavvio forzato. [link|https://www.ifixit.com/Search?doctype=guide&query=iPhone%20Force%20Reset|Segui la guida per il tuo modello] se non sei familiare con questo processo.
* Se riesci a entrare nel sistema operativo, controlla se ci sono aggiornamenti di sistema. Questo include gli aggiornamenti delle app.

== Software corrotto o in conflitto ==

Mentre usi il telefono, qualcosa tra gli uno e gli zero che lo fanno funzionare potrebbe essersi perso o potrebbe essere cambiato in un modo che rende il tuo dispositivo inutilizzabile. Questo è solitamente il risultato di un update mal riuscito, un'app in conflitto con la funzionalità o anche un software malevolo.

Per cercare di correggere questo problema, reinstalla il sistema operativo. Se il tuo telefono sta acceso abbastanza a lungo, puoi farlo dal menù impostazioni. Altrimenti, dovrai [guide|133851|entrare in modalità di recupero|new_window=true] per avviare questo processo.

* Prova prima ad aggiornare.
* Se l'aggiornamento non riesce, è il momento di valutare lo stato dei tuoi backup. Se sei sicuro di avere un backup recente o sei disposto a sacrificare i tuoi dati per ricominciare a usare il telefono, procedi con il ripristino. ***Questo cancellerà tutti i dati presenti sul tuo telefono***. Se preferiresti non eliminare tutto, salta il ripristino e prova prima alcune delle [[iPhone Keeps Restarting#Section_Porta_di_ricarica_difettosa|correzioni hardware qui sotto|new_window=true]].

* Se l'aggiornamento o il ripristino falliscono con un messaggio di errore, segnatelo. Potrebbe essere un buon momento per visitare la [link|https://www.ifixit.com/Answers|comunità Risposte], dove puoi ricevere aiuto più personalizzato. Accertati di menzionare il messaggio di errore nella tua domanda!

== Memoria piena ==

Hai ricevuto degli avvisi che ti dicevano che la memoria del tuo telefono è in esaurimento? È facile ignorarli, ma i dispositivi informatici hanno bisogno di spazio libero per funzionare correttamente. Immagina che siano come il cassetto delle tue calze. Puoi infilarci tutte le calze in più che vuoi, ma a un certo punto il cassetto smetterà di chiudersi. È possibile che il tuo telefono sia in questo stato in cui non può più funzionare come dovrebbe.

* Prova di nuovo i passi del riavvio forzato descritti all'[[iPhone Keeps Restarting#Section_First_Steps|inizio di quesra pagina|new_window=true]]. Anche un po' di volte. Se sei fortunato, questo potrebbe concederti un avvio di successo così da poter entrare e pulire alcune delle cinquecento foto sfocate del tuo cagnolino che insegue una busta di carta in giardino.
* Se questo non funziona, alla fine dovrai per forza resettare il dispositivo, specialmente se ultimamente hai ricevuto avvisi di memoria in esaurimento prima che comparisse il problema. Se non è già in modalità di recupero, [guide|133851|dovrai portarcelo|new_window=true] e ripristinare il tuo dispositivo.
** Questo potrebbe essere il difetto di fondo se hai ricevuto gli errori 14, 78 o 1110 quando hai eseguito un aggiornamento in modalità di recupero.

== Porta di ricarica difettosa ==

La porta di ricarica e il cavo a nastro a cui è connessa all'interno sono punti comuni di rottura in tutti i modelli di iPhone. Si rovina ed viene esposto facilmente all'ambiente esterno. Questo porta a una carica incostante e l'inabilità di mantenersi carico abbastanza a lungo per accendersi correttamente.

* Ispeziona la porta di ricarica con una torcia per avere una migliore visibilità. Succede spesso che pelucchi o sporcizia rimangano intrappolati nella porta e si comprimano in seguito a diverse ricariche. Per verificare, controlla la tenuta del cavo. La presa lightning entra perfettamente nella parte inferiore del telefono? Dovrebbe.
* Se c'è sporcizia nella porta, usa uno stuzzicadenti o un'altra sonda non conduttiva per pulirla. Inserisci la punta verso il fondo e gratta via delicatamente la sporcizia rimasta. Fai attenzione ai pin.
** Se lo stuzzicadenti è troppo grosso, prova a dividere la punta con un coltello. La metà di uno stuzzicadenti di solito riesce a raggiungere le fessure più remote di una porta di ricarica.
* Un cellulare che si ricarica solo da determinati angoli, o in modo intermittente in generale, potrebbe aver bisogno di una nuova porta di ricarica.
** ***Nota:*** Accertati di trovare parti di ricambio per la porta vendute da fornitori affidabili o spendi più soldi per un ricambio di qualità più alta. Ci sono moltissimi [link|https://www.youtube.com/watch?v=EIBHIhzRbI8&t=531s|rivenditori terzi di parti di qualità scadente].

== Batteria difettosa ==

Sappiamo tutti che le batterie ricaricabili si degradano nel tempo. Questo può portare a una scarsa durata della batteria. Ma le batterie possono rovinarsi in molti modi diversi, che possono portare a riavvii inaspettati.

* Controlla la salute della tua batteria. Sotto ''Impostazioni > Batteria > Stato e carica batteria'' dice "Assistenza"?
** Secondo le linee guida Apple, tutto quello che ha una capacità inferiore all'80% ha bisogno di assistenza per la batteria, anche se è possibile rilevare anche altri guasti. Se qui dice ***Assistenza***, una nuova batteria è un buon inizio.
** Se dice che la batteria funziona come dovrebbe, guarda la ripartizione dell'utilizzo della batteria.
* Cerca se ci sono segni di [link|https://www.ifixit.com/News/11211/what-to-do-with-a-swollen-iphone-battery|rigonfiamento della batteria]. C'è una decolorazione localizzata sul lato sinistro (o destro per la serie 12 e gli iPhone più nuovi) dello schermo? Lo schermo si sta sollevando da un lato?
* Sostituisci la batteria se ci sono indicazioni di un guasto. Fa' attenzione quando maneggi la batteria. Le batterie agli ioni di litio possono essere pericolose se danneggiate.

== Dati sensore mancanti ==

A partire dall'iPhone X, Apple ha lanciato una routine di controllo dei sensori tra le funzioni normali. Tutti i sensori di una lista prestabilita devono inviare un segnale ogni 180 secondi o il cellulare si riavvierà come misura di sicurezza.

* Questa è quasi sicuramente la causa se il tuo telefono si accende normalmente ma sta acceso solo tre minuti prima di riavviarsi.
* Controlla i log, un luogo che i proprietari di iPhone frequentano raramente.
## Vai a ''Impostazioni > Privacy e sicurezza > Analisi e miglioramenti'' e ''Miglioramenti > Dati analisi''. Scorri per cercare voci che contengono panic o panic.full nel nome.
## Trova la ***stringa panic***
## Gli errori per la mancanza dei sensori vengono mostrati come ***thermalmonitord*** o ***watchdog timeout***. Se la tua stringa panic è diversa, cerca se ci sono delle parole chiave che ti possano aiutare a interpretarla. Fai riferimento alla  [[iPhone Kernel Panics|pagina in espansione sui panic|new_window=true]] o [link|https://www.ifixit.com/Answers|fai una domanda nella comunità Risposte] per farti aiutare dalla community!
## Per un panic watchdog timeout o thermalonitord, continua a leggere oltre alla stringa panic per trovare il sensore mancante.
## Riposiziona i connettori delle parti indicate. Ispezionali alla ricerca di segni di danni o malfunzionamenti. Sostituiscili se necessario.

{table
|width=100%
|format=30%cm:cm:cm:cm
|! Sensore mancante
|! Posizione
|! Probabile problema
|--
| PRS0 - Barometro[br]
| <<rowspan="2">> Sull'insieme della porta di ricarica[br]
| <<rowspan="2">> Insieme porta di ricarica o il suo connettore sulla scheda logica
|--
| Mic1 - Microfono inferiore
|--
| Mic2 - Microfono posteriore[br]
| Cavo pulsante di accensione, cavo flash fotocamera
| Cavo pulsante di accensione, cavo flash fotocamera o rispettivi connettori sulla scheda logica
|--
| TG0V
| <<rowspan="2">> Sensori batteria, probabilmente per temperatura e voltaggio
| <<rowspan="2">> Batteria o il suo connettore sulla scheda logica, insieme porta di ricarica su 11 Pro e Pro Max, circuito di carica a livello della scheda.
|--
| TG0B
}

== Periferica difettosa ==

Fondamentalmente, quasi tutti i segnali all'interno dell'iPhone vanno verso o arrivano dalla scheda madre. L'interruzione di queste comunicazioni necessarie all'hardware collegato può causare il riavvio.

* Avvia il telefono con una configurazione hardware minima.
## Apri il dispositivo e scollega tutto ciò che non è necessario all'accensione del cellulare. Per la maggior parte degli iPhone, questo include batteria, porta di ricarica e schermo (così sai se si sta accendendo). Se non sai come aprire il telefono, [[Topic:iPhone|controlla la pagina delle guide|new_window=true]].
## Collega un caricatore o un cavo USB per iniziare l'accensione. 
## Se questo si avvia normalmente con il setup minimo, ricollega le parti una a una. Sospetta di più dei cavi del tasto Home e della fotocamera frontale.
* È possibile ridurre la configurazione minima eliminando la porta di ricarica e usando invece il cavo a nastro del tasto di accensione. Puoi eliminare lo schermo collegando il telefono a un PC e verificando che resti connesso.

== Danni da liquido ==

I migliori piani a volte finiscono con un cellulare nel water. Anche se il tuo telefono sembra perfettamente funzionante, potrebbe non esserlo. Basta una sola gocciolina d'acqua nel posto sbagliato per creare scompiglio su un circuito stampato.

[image|2751756]

* Se è possibile che il tuo telefono si sia bagnato, controlla l'indicatore dei danni da liquidi.

*   [link|https://www.ifixit.com/Search?doctype=guide&query=iPhone%20sim%20replacement|Espelli il vassoio della scheda SIM] e usa una torcia per guardare dentro. L'adesivo per il contatto con liquidi è sul lato inferiore dello schermo. Può essere difficile da individuare, ma è rosso se è venuto a contatto con liquidi e bianco se è asciutto.

* Un adesivo rosso non è una garanzia che il tuo telefono è pieno del cocktail che (non) hai bevuto ieri sera, ma merita di essere indagato ulteriormente. Apri il dispositivo seguendo la guida adatta e usa la [guide|95280|guida per i danni da liquidi in iPhone|new_window=true] se serve.
* Se aderisci al [link|https://www.ifixit.com/News/30047/rice-is-for-dinner-not-repair|mito di lasciarlo nel riso], riconsidera! Potrebbe salvare il tuo telefono.

== Scheda logica ==

La scheda madre è il centro della grande maggioranza delle funzionalità di un iPhone. Un numero qualsiasi dei piccoli componenti sulla scheda potrebbe essersi guastato o danneggiato ed è una buona ipotesi di causa, se nient'altro ha funzionato su questa pagina.

* Cerca segni ovvi di problemi con la scheda: componenti bruciati o spezzati, residui di liquidi, corrosione o piegatura. Se ci sono segni di liquido, la [guide|95280|guida per i danni da liquidi in iPhone|new_window=true] potrebbe aiutarti.
* Sostituire la scheda madre è solitamente la soluzione più pratica per un riparatore fai da te in questa situazione.
* Se sei particolarmente curioso, i pezzetti e i chip sulla scheda possono essere riparati con la microsaldatura. È un'arte a sé stante, ma un'impresa meritevole per gli avventurosi. Sei interessato? Da' un'occhiata a [link|https://www.ifixit.com/News/7321/know-about-microsoldering|questa introduzione]! Anche il [link|https://youtube.com/c/Mendonipadrehab|Il canale YouTube di Jessa] è fantastico e ha moltissime riparazioni in tempo reale. Se non puoi fare tu questo tipo di riparazione, potresti trovare un negozio di riparazione locale che può farlo per te!

== Pagine correlate ==