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MacBook Pro 15 A1398 Black screen after removing the screen coating

Hi guys,

Recently I’ve got a second hand MBP A1398 in good shape but with a filthy screen coating (because of the age). I removed it with alcohol but gently, after that sometimes screen started flickering and after went black. It shows the secondary display (screen monitor from HDMI), in the settings the internal display is shown as working and online.

I checked the display tape from the inside and under the display, I detached them and everything is looking good and not damaged.

Do you have any tips on what could it possibly be? Can it be because of the Ventura installed? (A1398 is shown as not working properly, there are no video drivers for the GT750m that is inside. Although there is no Apple logo on start and I don’t see anything in the recovery so idk is that it). Below some photos from the process :)

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its not showing any photos, if you shine a light on the screen can you see any image ?

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I will check it back home, but i did not see even a glow of the apple logo on the back

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Fixing the MacBook Pro 15 A1398 black screen issue after removing the screen coating can be a straightforward process. Here are some simple steps you can follow to resolve the problem:

  1. Restart your MacBook: Sometimes, a simple restart can help resolve temporary glitches or conflicts that may be causing the black screen issue. Click on the Apple menu in the top-left corner of the screen and select Restart. Check if the black screen problem is resolved after the restart.
  2. Adjust display brightness and contrast: It's possible that the screen brightness is set too low, making it appear as if the screen is completely black. Press the F1 and F2 keys (or the brightness keys, depending on your model) to decrease or increase the display brightness. Ensure that the brightness is not set to the lowest level.
  3. Reset NVRAM/PRAM: Resetting the NVRAM (Non-Volatile Random-Access Memory) or PRAM (Parameter RAM) can help resolve display-related issues. Shut down your MacBook, then press the Power button and immediately hold the Option + Command + P + R keys. Keep holding the keys until you hear the startup sound for the second time. Release the keys and let your MacBook restart. Check if the black screen problem persists.
  4. Boot into Safe Mode: Starting your MacBook in Safe Mode can help identify if the black screen issue is caused by third-party software or extensions. Restart your MacBook and immediately hold the Shift key after hearing the startup sound. Release the Shift key when you see the Apple logo. If your MacBook starts up successfully in Safe Mode, it suggests that a software conflict may be causing the black screen. Restart your MacBook normally to exit Safe Mode.
  5. Reset SMC: Resetting the System Management Controller (SMC) can help resolve hardware-related issues. Shut down your MacBook and disconnect the power adapter. Press and hold the Shift + Control + Option keys on the left side of the keyboard, then press the Power button and hold all the keys for about 10 seconds. Release the keys, reconnect the power adapter, and turn on your MacBook.
  6. Seek professional assistance: If none of the above steps resolve the black screen issue, it is recommended to seek professional assistance. Contact an Apple Authorized Service Provider or the Apple Support team for further guidance. They can perform advanced diagnostics and provide specific solutions based on your MacBook Pro model and its configuration.

Remember to back up your important data before attempting any troubleshooting steps, as a precautionary measure. Resolving the black screen issue on your MacBook Pro 15 A1398 after removing the screen coating may require a combination of these steps or further technical support from professionals.

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Fix MacBook Pro 15 A1398 Black Screen

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Tried everything, also i did check the display cable and it is okey

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Mateusz Rybak será eternamente grato(a).
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