Modifica Il Samsung Galaxy S20 non si accende

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	If you are having issues with your Samsung Galaxy S20 not turning on or responding to input from the power button, this problem page will help you get your phone back up and running in no time!

-	== Cause 1: Battery Discharged ==
+	[comment]solutions[/comment]
+
+	== Battery Discharged ==

	It’s a well known fact that phones need power from the battery to operate. While usually your phone will alert you to a low battery with a prompt on the screen when you attempt to turn it on, if the battery level drops low enough there may not be enough juice to power the screen—even briefly. An excessively low battery may be causing your phone to remain unresponsive when holding the power button. To fix the issue, simply charge your phone for at least 10 minutes before attempting to turn the phone back on.

	*Tip: Be sure to check* that your *cable, charging block, and outlet* are all functional before ruling out simple discharge as the culprit. You can try plugging in another USB-C device to make sure that the setup is getting power if you suspect that one of these components may be dysfunctional.

-	== ~~Cause 2:~~ Firmware Fault ==
+	== Firmware Fault ==

	If the problem with your phone seems to have occurred for no reason (i.e. you didn’t drop it or expose it to extreme conditions), it’s likely due to a problem with the phone’s software. You can perform a force reset on your phone to escape from a bad firmware loop. To force reset your Galaxy S20:

	If this solution works for you, it’s likely that your issue was simply a software blip and your phone should continue to function normally. If you didn’t have any luck with a force reset, your issue may stem from a hardware malfunction. Time to get your hands dirty!

-	== ~~Cause 3:~~ Bad Battery ==
+	== Bad Battery ==

	Lithium Ion batteries like the one found in your Galaxy S20 are only rated for around 400-500 charge cycles before the battery capacity degrades to 80%. For most regular users, this will happen at the 1-1.5 year mark, at which the user will notice that their battery holds less charge and takes longer to reach a full charge. However, at around 50-60% capacity, the battery will start to fail to hold a useful charge and may even struggle with providing adequate power to handle the performance of the phone. If you’ve been using your phone for 2-3+ years and have amassed a thousand or more charge cycles, your phone may have trouble starting the hardware up, even when fully charged.

	Additionally, lithium-ion batteries like the one in your Galaxy S20 don’t like to be kept at the extreme ends of their charge range (fully-charged or fully-discharged) for long periods of time. If you’ve kept your phone’s battery at one of these extremes (especially fully discharged) for multiple weeks or months, this may have degraded the battery life significantly, even if your charge cycle count is relatively low.

+	If you find that your battery has degraded significantly, you can replace it by following [guide\|132827\|this Samsung Galaxy S20 Battery Replacement guide\|new_window=true] with one of the following battery options for your phone:
+
+	* [parts\|Samsung Galaxy S20 FE\|Samsung Galaxy S20 FE 5G\|itemtype=screens]
+	* [parts\|Galaxy S20\|Samsung Galaxy S20 5G]
+	* [parts\|Samsung Galaxy S20 Plus\|Samsung Galaxy S20+ 5G]
+	* [parts\|Samsung Galaxy S20 Ultra\|Samsung Galaxy S20 Ultra 5G]
+
	[image\|2719193\|size=medium\|align=center\|caption=If you do find that your battery has degraded significantly, you can replace it to restore your phone to its former glory using this Samsung Galaxy S20 Battery Replacement Guide\|link=https://www.ifixit.com/Guide/Samsung+Galaxy+S20+Battery+Replacement/132827]

-	== ~~Cause 4:~~ Screwed-Up Screen ==
+	== Screwed-Up Screen ==

	The screen of the phone is responsible for displaying the user interface, and because it controls most of the input/output for the phone, a faulty screen may be mistaken for the phone not turning on.

	Another way to test for a damaged screen is to use a [link\|https://www.amazon.com/MakerHawk-Multimeter-Multi-function-Capacity-Detector/dp/B07GQLYMR9/ref=sr_1_5?keywords=usb+c+power+meter&qid=1645812609&sr=8-5\|usb ammeter] to confirm that the phone’s charging port is still functional, which confirms that the internals of the phone are still functional and points to an issue with the screen.

-	You can replace the screen by following this [guide\|138829\|Samsung Galaxy S20 Screen Replacement Guide].
+	You can replace the screen by following this one of the following guides for your phone:
+
+	* [guide\|138829\|Samsung Galaxy S20 Screen Replacement] with a [parts\|Galaxy S20\|new screen\|itemtype=screens]
+	* [guide\|133913\|Samsung Galaxy S20 Plus Screen Replacement] with a [parts\|Samsung Galaxy S20 Plus\|new screen]
+	* [guide\|139909\|Samsung Galaxy S20 Ultra Screen Replacement] with a [parts\|Samsung Galaxy S20 Ultra\|new screen]
+	* [guide\|160793\|Samsung Galaxy S20 FE Screen Replacement] with a [parts\|Samsung Galaxy S20 FE\|new screen\|itemtype=screens]

	[video\|https://www.youtube.com/watch?v=VDirdoIEh0Y]

-	== ~~Cause 5:~~ Motherboard Malfunction ==
+	== Motherboard Malfunction ==

	If none of the above solutions was able to turn your Samsung Galaxy S20 back on, the issue may be with the main circuit board of the phone. The motherboard controls most of the phone’s functionality, handling input sent in from the screen and buttons and processing it to produce the desired outcome. Also contained on the motherboard are the phone’s Qualcomm Snapdragon 865 SoC (system-on-a-chip), RAM module, flash storage, and 5G modem, among [guide\|131607\|several other chips\|stepid=259200].

	Typically, the motherboard only goes bad when it experiences a significant impact, exposure to water, extreme temperatures, or when the BIOS settings are changed (like when a root attempt is unsuccessful). If you suspect any of the above have damaged your motherboard, you may need to replace it to regain functionality for your phone. You can replace your Galaxy S20 motherboard using this nifty [guide\|136953\|Samsung Galaxy S20 Motherboard Replacement Guide].

-	== Similar Issues ==
+	[comment]conclusion[/comment]
+
+	== Related Pages ==

	* [[Samsung Galaxy S20 Black Screen\|Samsung Galaxy S20 Black Screen\|new_window=true]]

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Titolo della pagina

Mostra Titolo

Sommario

Solve any issues you may be having with your Samsung Galaxy S20 not turning on with this solution page full of common causes and how to fix them.

Informazioni Aggiuntive

If you are having issues with your Samsung Galaxy S20 not turning on or responding to input from the power button, this problem page will help you get your phone back up and running in no time!

[comment]solutions[/comment]

== Battery Discharged ==

It’s a well known fact that phones need power from the battery to operate. While usually your phone will alert you to a low battery with a prompt on the screen when you attempt to turn it on, if the battery level drops low enough there may not be enough juice to power the screen—even briefly. An excessively low battery may be causing your phone to remain unresponsive when holding the power button. To fix the issue, simply charge your phone for at least 10 minutes before attempting to turn the phone back on.

***Tip***: Be sure to ***check*** that your ***cable***, ***charging block***, and ***outlet*** are all functional before ruling out simple discharge as the culprit. You can try plugging in another USB-C device to make sure that the setup is getting power if you suspect that one of these components may be dysfunctional.

== Firmware Fault ==

If the problem with your phone seems to have occurred for no reason (i.e. you didn’t drop it or expose it to extreme conditions), it’s likely due to a problem with the phone’s software. You can perform a force reset on your phone to escape from a bad firmware loop. To force reset your Galaxy S20:

# Press and hold the ***power*** and ***volume down*** buttons for 10 to 30 seconds
# If the Samsung logo appears on the screen, release the buttons and the phone should start up normally.
** If the logo does not show, you might try plugging the phone in for 10 minutes and then trying again while the phone is still connected to power from the wall. (If this works it may indicate issues with the battery, however.)

If this solution works for you, it’s likely that your issue was simply a software blip and your phone should continue to function normally. If you didn’t have any luck with a force reset, your issue may stem from a hardware malfunction. Time to get your hands dirty!

== Bad Battery ==

Lithium Ion batteries like the one found in your Galaxy S20 are only rated for around 400-500 charge cycles before the battery capacity degrades to 80%. For most regular users, this will happen at the 1-1.5 year mark, at which the user will notice that their battery holds less charge and takes longer to reach a full charge. However, at around 50-60% capacity, the battery will start to fail to hold a useful charge and may even struggle with providing adequate power to handle the performance of the phone. If you’ve been using your phone for 2-3+ years and have amassed a thousand or more charge cycles, your phone may have trouble starting the hardware up, even when fully charged.

You can check for battery issues by seeing if your phone turns on while plugged in. If your phone does turn on while connected to a power source, you can check the battery on your Samsung Galaxy S20 by following these steps:

# Open the ***Samsung Members*** app on your phone.
# Select the ***Get Help*** button in the middle of the bottom toolbar.
# Select ***Interactive Checks*** from around the middle of the right side of the screen.
# Select the ***Battery*** button from the list of components to check.
# The UI should then display your battery status, including the current charge, a nondescript “life” status, and the battery’s current capacity. You can do a quick calculation to get a more specific read on your battery’s health by dividing the capacity listed by the phone’s capacity when new:
** ***4500*** mAh for the ***Samsung Galaxy S20 FE 5G***
** ***4000*** mAh for the ***Samsung Galaxy S20 5G***
** ***4500*** mAh for the ***Samsung Galaxy S20+ 5G***
** ***5000*** mAh for the ***Samsung Galaxy S20 Ultra 5G***
** Disclaimer: Due to the deviation in battery capacity through the production process, rated (minimum) capacity for each model is 3880mAh for the Galaxy S20 5G, 4370mAh for the Galaxy S20 FE 5G and Galaxy S20+ 5G, and 4855mAh for the Galaxy S20 Ultra 5G
*** Sourced from [link|https://www.samsung.com/us/mobile/galaxy-s20-5g/specs/#:~:text=Battery%20Capacity|Samsung’s Galaxy S20 Battery Specifications page]

Additionally, lithium-ion batteries like the one in your Galaxy S20 don’t like to be kept at the extreme ends of their charge range (fully-charged or fully-discharged) for long periods of time. If you’ve kept your phone’s battery at one of these extremes (especially fully discharged) for multiple weeks or months, this may have degraded the battery life significantly, even if your charge cycle count is relatively low.

If you find that your battery has degraded significantly, you can replace it by following [guide|132827|this Samsung Galaxy S20 Battery Replacement guide|new_window=true] with one of the following battery options for your phone:

* [parts|Samsung Galaxy S20 FE|Samsung Galaxy S20 FE 5G|itemtype=screens]
* [parts|Galaxy S20|Samsung Galaxy S20 5G]
* [parts|Samsung Galaxy S20 Plus|Samsung Galaxy S20+ 5G]
* [parts|Samsung Galaxy S20 Ultra|Samsung Galaxy S20 Ultra 5G]

[image|2719193|size=medium|align=center|caption=If you do find that your battery has degraded significantly, you can replace it to restore your phone to its former glory using this Samsung Galaxy S20 Battery Replacement Guide|link=https://www.ifixit.com/Guide/Samsung+Galaxy+S20+Battery+Replacement/132827]

== Screwed-Up Screen ==

The screen of the phone is responsible for displaying the user interface, and because it controls most of the input/output for the phone, a faulty screen may be mistaken for the phone not turning on.

If the phone was recently dropped and the screen is visibly damaged, a screen replacement may return the phone to working condition. However, you can test this by plugging the phone into an external display if possible. If you get an output on the external display, it means that your phone is still turning on, but the display is busted.

Another way to test for a damaged screen is to use a [link|https://www.amazon.com/MakerHawk-Multimeter-Multi-function-Capacity-Detector/dp/B07GQLYMR9/ref=sr_1_5?keywords=usb+c+power+meter&qid=1645812609&sr=8-5|usb ammeter] to confirm that the phone’s charging port is still functional, which confirms that the internals of the phone are still functional and points to an issue with the screen.

You can replace the screen by following this one of the following guides for your phone:

* [guide|138829|Samsung Galaxy S20 Screen Replacement] with a [parts|Galaxy S20|new screen|itemtype=screens]
* [guide|133913|Samsung Galaxy S20 Plus Screen Replacement] with a [parts|Samsung Galaxy S20 Plus|new screen]
* [guide|139909|Samsung Galaxy S20 Ultra Screen Replacement] with a [parts|Samsung Galaxy S20 Ultra|new screen]
* [guide|160793|Samsung Galaxy S20 FE Screen Replacement] with a [parts|Samsung Galaxy S20 FE|new screen|itemtype=screens]

[video|https://www.youtube.com/watch?v=VDirdoIEh0Y]

== Motherboard Malfunction ==

If none of the above solutions was able to turn your Samsung Galaxy S20 back on, the issue may be with the main circuit board of the phone. The motherboard controls most of the phone’s functionality, handling input sent in from the screen and buttons and processing it to produce the desired outcome. Also contained on the motherboard are the phone’s Qualcomm Snapdragon 865 SoC (system-on-a-chip), RAM module, flash storage, and 5G modem, among [guide|131607|several other chips|stepid=259200].

Typically, the motherboard only goes bad when it experiences a significant impact, exposure to water, extreme temperatures, or when the BIOS settings are changed (like when a root attempt is unsuccessful). If you suspect any of the above have damaged your motherboard, you may need to replace it to regain functionality for your phone. You can replace your Galaxy S20 motherboard using this nifty [guide|136953|Samsung Galaxy S20 Motherboard Replacement Guide].

[comment]conclusion[/comment]

== Related Pages ==

* [[Samsung Galaxy S20 Black Screen|Samsung Galaxy S20 Black Screen|new_window=true]]
* [[Samsung Galaxy S20 Network Issues|Samsung Galaxy S20 Network Issues|new_window=true]]
* [[Samsung Galaxy S20 Camera Failure|Samsung Galaxy S20 Camera Failure|new_window=true]]
* [[Samsung Galaxy S20 Touchscreen Unresponsive|Samsung Galaxy S20 Touchscreen Unresponsive|new_window=true]]

Italiano

[title|Il Samsung Galaxy S20 non si accende]

[summary]Risolvi tutti i problemi che stai avendo con il tuo Samsung Galaxy S20 che non si accende grazie a questa pagina di soluzioni con le cause più comuni e come risolverle.[/summary]

[summary_image|2596411]

Se stai avendo problemi perché il tuo Samsung Galaxy S20 non si accende o non risponde agli input del tasto di accensione, questa pagina di risoluzione problemi ti aiuterà a far funzionare il tuo telefono in un attimo!

== Causa1: Batteria scarica ==

È risaputo che i cellulari hanno bisogno di energia dalla batteria per funzionare. Mentre solitamente il tuo telefono ti avverte se ha la batteria scarica, con un messaggio sullo schermo quando cerchi di accenderlo, se il livello della batteria è troppo basso, potrebbe non esserci abbastanza potenza per accendere lo schermo, anche momentaneamente. Una batteria eccessivamente scarica potrebbe essere la causa per cui il tuo cellulare non risponde quando tieni premuto il pulsante di accensione. Per risolvere il problema, semplicemente carica il tuo cellulare per almeno 10 minuti prima di riprovare a riaccenderlo.

***Consiglio***: Accertati di ***controllare*** che il tuo ***cavo***, ***caricatore*** e ***presa*** siano tutti funzionanti prima di escludere che la mancanza di carica sia la causa. Puoi provare a collegare un altro dispositivo USB-C per assicurarti che tutto funzioni e riceva energia, se sospetti che uno di questi componenti possa non funzionare.

== Causa 2: Errore del firmware ==

Se il problema del tuo telefono sembra essersi verificato senza un motivo (ad esempio non l'hai fatto cadere o esposto a condizioni estreme), probabilmente sarà dovuto a un problema con il software del telefono. Puoi eseguire un riavvio forzato sul tuo telefono per uscire dal ciclo in cui è bloccato il firmware. Per eseguire un riavvio forzato del tuo Galaxy S20:

# Premi e tieni premuto i pulsanti di ***accensione*** e ***volume giù*** da 10 a 30 secondi.
# Se compare il logo Samsung sullo schermo, lascia andare i pulsanti e il cellulare si dovrebbe accendere normalmente.
** Se il logo non compare, puoi provare a mettere in carica il cellulare per 10 minuti e riprovare mentre il cellulare è collegato (ma se questo funziona potrebbe essere un segno che ci sono problemi con la batteria).

Se questa soluzione ha funzionato, probabilmente è stato un piccolo problema di software e il tuo cellulare dovrebbe continuare a funzionare normalmente. Se non hai avuto fortuna con un riavvio forzato, il tuo problema potrebbe derivare da un malfunzionamento dell'hardware. Tempo di sporcarsi le mani!

== Causa 3: Batteria difettosa ==

Le batterie agli ioni di litio, come quella presente nel tuo Galaxy S20, sono valutate per funzionare solo per 400 o 500 cicli di ricarica prima che la loro capacità scenda all'80%. Per gli utenti ordinari, questo succederà intorno a un anno o un anno e mezzo, poi l'utente si accorgerà che la sua batteria tiene meno la carica e ci vuole più tempo per caricare il cellulare al massimo. Al 50/60% di capacità, la batteria non riuscirà più a mantenere una carica utile e potrebbe addirittura avere difficoltà a fornire abbastanza potenza per gestire la performance del telefono. Se stai usando il telefono da due o tre anni e hai accumulato più di 1000 cicli di ricarica, il tuo cellulare potrebbe avere problemi ad avviare l'hardware anche quando completamente carico.

Puoi controllare se ci sono problemi con la batteria provando ad accendere il cellulare mentre è in carica. Se il telefono si accende, Controlla la batteria sul tuo Samsung Galaxy S20 seguendo questi passi:

# Apri la app ***Samsung Members*** sul tuo telefono.
# Seleziona il pulsante ***Aiuto*** nel centro della barra inferiore.
# Seleziona ***Controlli interattivi*** dal centro del lato destro dello schermo.
# Seleziona il pulsante ***Batteria*** dalla lista di componenti da controllare.
# L'interfaccia dovrebbe mostrarti lo stato della tua batteria, inclusa la carica attuale, uno stato non descrittivo della sua "vita" e la capacità attuale della batteria. Puoi fare un rapido calcolo per avere una lettura più precisa della salute della tua batteria dividendo la capacità elencata per essa da nuova:
** ***4500 mAh per il ***Samsung Galaxy S20 FE 5G***
** ***4000 mAh per il ***Samsung Galaxy S20 5G***
** ***4500 mAh per il ***Samsung Galaxy S20+ 5G***
** ***5000 mAh per il ***Samsung Galaxy S20 Ultra 5G***
** Disclaimer: A causa del cambiamento della capacità della batteria durante il processo produttivo, la capacità nominale (minima) è 3880 mAh per il Galaxy S20 5G, 4370 mAh per Galaxy S20 FE 5G e Galaxy S20+ 5G e 4855 mAh per il Galaxy S20 Ultra 5G.
*** Fonte: [link|https://www.samsung.com/us/mobile/galaxy-s20-5g/specs/#:~:text=Battery%20Capacity|Specifiche batteria Samsung’s Galaxy S20|new_window=true]

Inoltre, le batterie agli ioni di litio come quelle nel tuo Galaxy S20 non amano essere tenute agli estremi del livello di carica (completamente cariche o completamente scariche) a lungo. Se hai tenuto il telefono a uno di questi estremi (specialmente completamente scarico) per settimane o mesi, questo potrebbe aver degradato significativamente la batteria, anche se non hai eseguito molti cicli di ricarica.

[image|2719193|size=medium|align=center|caption=Se scopri che la tua batteria è significativamente degradata, puoi sostituirla per riportare il tuo cellulare al suo antico splendore usando questa guida per sostituire la batteria del Samsung Galaxy S20|link=https://www.ifixit.com/Guide/Samsung+Galaxy+S20+Battery+Replacement/132827]

== Causa 4: Schermo danneggiato ==

Lo schermo del tuo telefono è il responsabile del mostrarti l'interfaccia utente e, poiché controlla la maggior parte degli input e degli output del telefono, uno schermo difettoso potrebbe essere scambiato per un telefono che non si accende.

Se il telefono è caduto recentemente e lo schermo è visivamente danneggiato, uno schermo sostitutivo potrebbe far funzionare di nuovo il telefono. Puoi fare una prova collegando il cellulare a un display esterno, se possibile. Se hai un output sullo schermo esterno, significa che il tuo telefono si accende, ma lo schermo non va.

Un altro metodo per provare se lo schermo è danneggiato è usare un [link|https://www.amazon.com/MakerHawk-Multimeter-Multi-function-Capacity-Detector/dp/B07GQLYMR9/ref=sr_1_5?keywords=usb+c+power+meter&qid=1645812609&sr=8-5|amperometro usb|new_window=true] per confermare che la porta di ricarica funzioni ancora, il che conferma che i componenti interni sono funzionali e indica un problema con lo schermo.

Puoi sostituire lo schermo seguendo questa [guide|138829|guida sostituzione schermo Samsung Galaxy S20|new_window=true].

[video|https://www.youtube.com/watch?v=VDirdoIEh0Y]

== Causa 5: Malfunzionamento scheda madre ==

Se nessuna delle soluzioni qui sopra è riuscita a far accendere il tuo Samsung Galaxy S20, il problema potrebbe essere il circuito stampato principale del telefono. La scheda madre controlla la maggior parte delle funzioni del cellulare, gestisce gli input mandati dallo schermo e dai tasti per ottenere il risultato desiderato.La scheda madre contiene anche l'SoC (sistema su chip)  Qualcomm Snapdragon 865, il modulo RAM, la memoria flash e il modem 5G, tra [guide|131607|molto altri chip|stepid=259200].

Solitamente, la scheda madre si danneggia gravemente solo quando subisce un notevole impatto, viene esposta all'acqua, a temperature estreme o quando le impostazioni del BIOS vengono cambiate (ad esempio quando fallisce un tentativo di riavvio). Se sospetti che uno di questi fattori possa aver danneggiato la tua scheda madre, potresti doverla sostituire perché il tuo telefono torni a funzionare. Puoi sostituire la scheda madre del tuo Galaxy S20 usando questa brillante [guide|136953|guida per la sostituzione scheda madre Samsung Galaxy S20|new_window=true].

== Problemi simili ==

* [[Samsung Galaxy S20 Black Screen|Schermo nero Samsung Galaxy S20|new_window=true]]
* [[Samsung Galaxy S20 Network Issues|Problemi di connessione Samsung Galaxy S20|new_window=true]]
* [[Samsung Galaxy S20 Camera Failure|Fotocamera non funzionante Samsung Galaxy S20|new_window=true]]
* [[Samsung Galaxy S20 Touchscreen Unresponsive|Touchscreen non risponde Samsung Galaxy S20|new_window=true]]