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Das März 2015 Update von Apples 13" MacBook Pro Retina Display, Modell A1502, bietet fifth-generation Intel Core i5 und i7 Prozessoren der 5. Generation und führt den Force Touch Trackpad ein.

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DIsplay not working but on tv its working,Booting in safe mode only.

So my mac was working before the catalina update,

yesterday after update the display stopped working,but the laptop turns on,so i connected it to my television and its working fine.

Also the catalina update is not going past the loading screen but its working in safe mode.

what can be the issue.

i have researched most of the forums,but didn’t found any working solution.

the mac is 4 years old and i have only replaced the battery.

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Do you have access to a second mac? I fear you’ll need to nuke the drive and re-install the OS from a USB OS installer thumb drive. Catalina has been messing up a few older macs so while I haven’t seen what you have encountered it wouldn’t surprise me. Do backup what you need before you proceed.

So from the second mac setup a USB thumb drive following this guide: How to create a bootable macOS Mojave installer drive

Now boot up your system press the Option key to make sure you’ve booted up from your installer drive from the Startup Manager

Reference: Mac startup key combinations

From the menus open Disk Utility and delete all of the partitions, then reformat the drive GUID using APFS file system.

Now go back into the OS installer and let it rip! Your system will reboot a few times and will appear to get stuck with a black screen and have a long beep so don’t let the scare you. Your systems firmware will be updated in the process.

As for your source for the OS install use this one: How to upgrade to macOS Mojave jump down to Step 4 to get it. Apple messed up its certificate signing so its important to use this image. You can read all about it here: If you've got an old macOS install image, it will probably stop working today

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Yes, I was able to access the OS in safe mode, I copied all the important data off and now installing the Mojave, lets see how it goes.

von

so i installed the mojave os but the problem remains the same.

what to do next ?

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Lets get a snapshot of the volume layout. Open 'About This Mac' Then click on System Report. NVM express or 'SATA/SATA Express should report your volumes. Expand the upper section as well as the lower sections so we can see both post the image here for us to see Bilder zu einer vorhandenen Frage hinzufügen

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@danj i have added the screenshots

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@runjesh did you find the solution? I'm facing the same problem.

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Runjesh wird auf ewig dankbar sein.
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