Introduzione
Usa questa guida per sostituire il gruppo schermo in un MacBook Pro 13" Touch bar 2019.
Per la tua sicurezza, scarica la batteria del tuo MacBook Pro prima di iniziare.
Cosa ti serve
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Accendi il tuo Mac e apri Terminal.
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Copia e incolla il seguente comando (oppure digitalo esattamente) in Terminal:
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sudo nvram AutoBoot=%00
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Premi [return]. Se richiesta, inserisci la tua password di amministratore e premi di nuovo [return]. Nota: il tuo tasto return può essere etichettato anche come ⏎ o "enter."
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sudo nvram AutoBoot=%03
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Usa un cacciavite pentalobe P5 per rimuovere le sei viti di fissaggio della cover inferiore.
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Due viti lunghe 6,2 mm
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Due viti lunghe 5,3 mm
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Due viti lunghe 3,4 mm
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Inserisci di nuovo il tuo plettro di apertura sotto il bordo anteriore della cover, vicino a uno dei fori delle due viti più centrali.
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Torci con una certa decisione il plettro per sganciare la terza clip che fissa la cover inferiore alla scocca.
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Ripeti questa operazione vicino all'altro foro delle viti centrali, sganciando così la quarta clip.
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Spingi con decisione il case inferiore verso la parte frontale del MacBook (cioè allontanandolo dalla zona delle cerniere) per separare l'ultima clip di fissaggio rimasta.
Tip: If you use a spudger as a lever, placing the thin end inside the hinge and pressing lightly towards the bottom casing, it pops out quite easily.
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Rimuovi il case inferiore.
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Disponila in posizione e allinea le clip scorrevoli vicino alla cerniera dello schermo. Premi la cover e falla scorrere verso le cerniere. Lo scorrimento dovrebbe bloccarsi non appena le clip si agganciano.
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Quando le clip scorrevoli sono del tutto agganciate e il case inferiore sembra allineato correttamente, premi con decisione il case inferiore per agganciare le quattro clip nascoste sottostanti. Dovresti percepire il conseguente bloccaggio delle clip stesse.
Hab zum Schluss das Blaue OpeningTool benutzt und am Rahmen in der nut eingehackt um den Deckel final hinein zu drücken. Da er per Hand nur bis zu einem gewissen Punkt geht
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Stacca con attenzione il grande pezzo di nastro adesivo che copre il connettore della batteria, sul bordo della scheda logica più vicino alla batteria.
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Rimuovi il nastro stesso.
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Usa un cacciavite Torx T5 per rimuovere la vite a testa larga di 3,7 mm di lunghezza che fissa il connettore di alimentazione della batteria.
io ho trovato un Torx T4 invece del T5.
Ciao Stefano! Grazie per il commento. Infatti c’è sempre una certa tolleranza fra il cacciavite e la testa delle viti. Quindi è possibile che un cacciavite più grande o più piccolo sia più “comodo” in certi casi. Buona riparazione!
konnte diese Verbindung nicht lösen. Zu sehr angezogen
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Usa uno spudger per sollevare con delicatezza il connettore dell'alimentazione della batteria, scollegando così dal dispositivo la batteria stessa dal dispositivo.
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Solleva il connettore abbastanza in alto da mantenerlo separato dal suo alloggiamento.
Please save yourself a pile of money and read this before doing this step: I bricked my MacBook by not being extremely careful and making sure to NOT touch the connector together as I took it apart. Ouch ouch ouch. 😫
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Rimuovi le quattro viti Torx T3 da 3,3 mm che fissano le cover di plastica sopra le cerniere dello schermo.
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Rimuovi le due viti Torx T3 da 1,7 mm che fissano la cover di alluminio disposta sopra il connettore del cavo flessibile dello schermo.
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Rimuovi la cover.
I have done 2 these these exact same 2019 MacBooks now, and both times The screw on the right seems to not be a T3. At first it appeared that I stripped it, but once I got to the second one and I was very gentle with it, it’s a totally different screw. And I can’t figure out what it is… But the T3 or the T4 will not remove it. Neither will a Pentolope. I just removed the left screw, and then I pivoted the cover away so I could remove the connecter. Anyone else having this issue?
You’re right, noahmadsen, they’re super slightly, but different.
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Rimuovi le quattro viti Torx T3 da 1,5 mm che fissano le due cover di alluminio al di sopra dei due connettori del cavo del display.
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Usa delle pinzette per rimuovere le due cover di alluminio.
FYI.....during reassembly, the new screen may come with these already attached so compare the old screen to the new one before installing.
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Disconnetti con delicatezza i due cavi coassiali di antenna tirandoli verso l'alto rispetto alla scheda logica.
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Fai scorrere le pinzette oppure l'estremità piatta dello spudger al di sotto di ciascun cavo finché non sei vicino al rispettivo socket; a quel punto applica una torsione all'attrezzo oppure tira verso l'alto per disconnettere il cavo stesso.
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Usa un plettro di apertura per far leva, nei punti illustrati, sotto il gruppo del cavo di antenna.
I stripped these, is there any tips on getting these out?
Mark, here's a guide with tips for removing stripped screws. Hope it helps—best of luck!
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Rimuovi il gruppo del cavo di antenna.
After doing the job the first time, when I opened the display there was something clicking loudly. I had found out that this antenna assembly wasn’t put back properly. When reinstalling this, there is a flat metal piece on the bottom centre of the antenna assembly. Mine became bent for some reason. I had to bend it back straight. It needs to click back in to top case. Problem solved!
Same happened to me, there’s a small canal in the top case where the antena must be vertically inserted, if you just push it horizontally in place it will fit and you will be able to reassemble the computer, but the antenna will be sligthly bent and cause friction with the screen when opening.
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Rimuovi le quattro viti Torx T3 da 3,9 mm che fissano le cerniere a molla dei due cavi del display.
T4 worked best for me
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Afferra il lato sinistro del gruppo del cavo dello schermo e tira verso la parte inferiore del MacBook Pro, allontanandolo dalla cerniera a molla.
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Con delle pinzette, tira fuori dal suo supporto la cerniera a molla del cavo del display.
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Ripeti questo passo con la cover a molla di destra del gruppo del cavo del display.
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Spingi una contro l'altro le due metà del MacBook Pro in modo che le staffe delle cerniere possono liberarsi dai loro alloggiamenti nella scocca.
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Allontana il corpo principale del MacBook Pro mentre tiri verso di te lo schermo per poterlo separare.
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Rimuovi il gruppo schermo, stando attento che non si impigli in alcun cavo durante l'operazione.
When reassembling, make sure to align the back edge of the new display assembly (hinge side) with the edge of the MacBook body, then tighten the hinge screws. Misalignment can cause the MacBook to open and close improperly. It should feel smooth where the gaps are between the two halves.
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Confronta la tua parte di ricambio con quella originale: potrebbe essere necessario il trasferimento di alcuni componenti o la rimozione di protezioni adesive dalla nuova parte prima di installarla.
Per riassemblare il tuo dispositivo, segui i passi descritti in ordine inverso.
Porta i tuoi rifiuti elettronici a un riciclatore certificato R2 o e-Stewards.
La riparazione non è andata come previsto? Prova delle soluzioni di base ai problemi, oppure rivolgiti alla nostra comunità Risposte per trovare aiuto nella risoluzione dei problemi.
Confronta la tua parte di ricambio con quella originale: potrebbe essere necessario il trasferimento di alcuni componenti o la rimozione di protezioni adesive dalla nuova parte prima di installarla.
Per riassemblare il tuo dispositivo, segui i passi descritti in ordine inverso.
Porta i tuoi rifiuti elettronici a un riciclatore certificato R2 o e-Stewards.
La riparazione non è andata come previsto? Prova delle soluzioni di base ai problemi, oppure rivolgiti alla nostra comunità Risposte per trovare aiuto nella risoluzione dei problemi.
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5 Commenti
Why does the guide suggest purchasing the "MacBook Pro 13" Retina (A1708, A2159) Display Cable "
Replaced my display with a genuine used panel and the true tone still worked. However, be very careful of the touchbar flex.
Is this step necessary? I can’t perform this step as I am attempting to repair water damage and need to remove logic board & most likely replace the battery.
Macrepair SF - Replica
@mac_medic You definitely don’t want the power coming on while the board is wet. In your case, I think powering on the machine to disable Auto Boot would do more damage than it prevents. I agree, skip this step and be prepared to disconnect the battery quickly if the laptop automatically powers on. Good luck!
Jeff Suovanen -
Thats right! You don't want power running while working on your logic board.
Dan -
This did not work when running High Sierra.
Kyle B - Replica
Tried this on a 2018 MBP 13” Touchbar (there’s no iFixit guide for this model yet). Need to replace a broken screen.
Luckily I managed to connect to an external screen (Cmd-Down Brightness to switch displays) and enter above command. Seems to work, but there’s another problem with this model - it powers up as soon as any key is pressed……. ffs <gnashes teeth>
Cool_Breeze - Replica
I unscrew the battery first and wrap electrical tape over the logic board battery connector before attempting any repairs to the board. Haven’t had any problems yet and I’ve worked on about 10 of these models already. Also when you open the bottom case use a suction cup at the bottom and pull up then run a plastic spudger along the edges to disconnect the clips. Also only use a plastic spudger on the board. Saw a youtube video from a repair shop and he did not disconnect the power and used all metal tools during the entire process of removing the board. His last step was to disconnect the battery terminal.
Brian - Replica
Is this step necessary if my mac can turn on? Battery fully dead(
Nursat b - Replica
BEFORE YOU START: The included torx head stripped off before I was done (and you might need an additional T4) so stop now and go buy a good one. Also they fail to warn you above to get some blue threadlocker ahead of time.
Jason Sherron - Replica
This command did not work for me and I read that sometime in later 2020 Apple stopped this command from working…any ideas on a work around?
Patrick Machacek - Replica
Not able to do that with damaged screen
richardjgreen - Replica
If you have a damaged screen you can still use a converter from thunderbolt (USB 3) to HDMI and plug your Macbook Pro to your TV as monitor display. Just make sure to chose the right Source (HDMI IN) in your TV. I did it and to make it work I unplug and plug again in my Macbook and so I could disable the Auto boot
Roberto Sanchez Bustos -
Hi. This does not work on 2018 13” MacBook Pro with Touch Bar. I did exactly this to disable auto boot. But when I check by using nvram -p it says: auto-boot true. Am I doing something incorrectly? I did everything step by step. Copied and pasted the sudo command, pressed enter and then entered my password. I have Big Sur 11.1 installed. Is there any other way since I need to replace the screen. Thank you. Adrian
Adrian Vizik - Replica
Hi everyone. This is also a little pointless if you can’t see anything on the screen, and you don’t have a display adapter to USB C to display it. I agree with Brian about removing the back and disconnecting the battery cable before you even think about opening the lid of the MacBook. Applying the insulation tape is also a handy little tip that just makes sure there is no way to discharge from either the board or battery.
Roberto Enrieu - Replica
running `nvram -p | grep 'AutoBoot'` in terminal verifies that it was accepted
result: `AutoBoot %00`
Marek Polák - Replica
Running Big Sur 11.6.7 on a 2019 16" MBP, it's "auto-boot". So it's:
nvram -p | grep 'auto-boot'to display the current state, the default istrue- and then to change it,sudo nvram auto-boot=falsewhich turns it off.Ed Mechem -
This step is completely unnecessary if you follow the guide to disconnect the battery properly. Just put some tape between the battery and logic board connection to prevent it from accidentally touching and therefore powering on the laptop.
Grant Ormsby - Replica
It took me a few tries to make this command work, as I was able to copy and paste the command into Terminal, but could not type in my laptop’s password. I finally typed my password into a text document, copied it (command C), and then pasted it into Terminal and it worked.
tommy404 - Replica
I didn’t do this. Mine never auto-booted before I replaced the battery. Now it does.
hatuxka - Replica
BEFORE YOU DO ANYTHING - CHECK THE BATTERY!
I-fixit sent me a bad battery, which I didn’t realize until it was already install. They sent me a new one, but I wasted hours uninstalling and reinstalled.
Get a volt meter and measure the voltage on the output of the battery pack. If it reads 0 V, SEND IT BACK. It should read over 2 V.
bcardanha - Replica
I've just received my replacement battery and it reads 0,042V between the two main connectors. Do you think it's dead?
peter sussex -
When I did this from Terminal.app within Recovery Mode, the “sudo” was not recognized but I could invoke it without the sudo part. It seems to have been accepted when looking at “nvram -p”
johann beda - Replica
When in Recovery Mode, you already have superuser powers. So you don't need to prefix commands with the sudo command to invoke them with root privileges; you already have them. Do a
pwd(print working directory) after opening Terminal in Recovery Mode, and you'll see that you're in the root user's directory.Ed Mechem -
I received the battery kit for my 2018 MacBook Pro and as per the above comment from bcardanha - Oct 12, 2021, I checked the voltage on the pads marked + and - . It was zero volts so I panicked a bit.
I sent a message on the iFixiT Facebook page and I got no reply. I finally found the customer service email for Ifixit Europe and sent them an email voicing my concern as I was not keen to work for couple of hours just to discover that the battery is faulty. I had an almost instant reply on the email (kudos to them) and they adviced me to go ahead and install the new battery as the voltage measured when battery is not connected is not relevant.
I took a leap of faith and after two hours… the new battery showed 50% charge and everything seems to be working just fine. I am happy it worked.
Mircea Comanici - Replica
After removing the old battery and installing the new battery I powered up the MBP before screwing the bottom on. I discovered the my keyboard would not function. It took a few hours of investigation and frustration that I discovered the track pad power ribbon had become partially dislodged from the trackpad. I was able to see that this through the little machined slot where the battery sat. I had to remove the trackpad to reinsert the power ribbon back into the connector in the trackpad. after reassembling and reinstalling the battery etc the keyboard worked. Just food for thought if your run into the keyboard issue.
Ed Mease - Replica
This should be the default. IMO I tell you to power on - not the lid.
G Sena - Replica
Est ce que cela fonctionne sur un macbook pro 2017 sans touchbar ?
maël muzelet - Replica
Bonjour Maël, oui, ce tutoriel concerne "les MacBook Pro 2016 (et plus récents) et les MacBook Retina 12" 2017 (et plus récents)"
Claire Miesch -
Excellent instructions. I was able to follow and install the new screen. I recommend that you get a good set of tools before you begin. I started with an inexpensive repair kit bought online. The Penta and torx bits failed. I bought an IFIXIT kit with quality bits and I was able to do everything I needed.
Tom Markham - Replica
If you're not running an admin account the sudo command won't work (which honestly, you should not be running admin). Rather than logging in to your admin amount via the OS, in the terminal type "login [admin username]," then the password and you'll be able to do the sudo command as described above. Once you're complete, type "logout [admin username]" and you'll be good to go. Obviously replace [admin username] with whatever the account name for your admin user is.
arichard2401 - Replica
For those unable to complete this step because the screen is too damaged I recommend leaving your macbook on until the battery dies.
Nicholas R Licato - Replica
Just replaced my 2018 15" MBP battery. Running Sonoma.
I found no way to disable AutoBoot (The status can be checked in the Power section of system report).
Anyway, i left my battery completely drain before opening the MBP, and had no issues during the process.
Cédric Bontems - Replica
After sending this command in terminal when I checked what happens if I now open the lid, instead the screen lit slightly up (still black) then a battery symbol showing the charging state showed up.
Now, after replacement of the battery, this is all I get to see.
No reset of NVRAM nor PRAM helped.
Currently the new battery charges (58% atm) and it feels like it‘s mocking me.
webrockers - Replica
I suspected the keyboard or TouchID sensor wouldn’t work, so I went on and checked every connector.
I missed connecting the left TouchID sensor from step 31.
webrockers -