We are guessing safe mode works because it puts so much less stress on the logic board? We were still thinking about killing all sound kexts or something like that, because he cannot afford the replacement. I don't know why that does't leave any shutdown logs. He took it into a shop and the guy says the logic board gets too hot to touch within 5 seconds, so must be broken. He has a current back-up and no money, so we'd prefer to somehow wipe the disk completely than take it in (problem is we don't know how – target disk mode?). The disk is encrypted and has a firmware password. There is a new Mojave update which we could try installing in safe mode (but somehow we suspect that won't work/help)Īnd yeah, warranty is up.Reboot into Safe Mode and see if the drive is detected. Will creating a bootable USB stick help? Any reason to hope that this doesn't also just turn off (which seems likely to us given that Internet Recovery does)? In Mac OS X version 10.6 to 10.10, click Verify Disk to see if the volume needs to be repaired.Can we somehow wipe the SSD and then restore from Time Machine?.Can we somehow fix the recovery partition from Safe Mode? Is there another way to run Disk Util (Target Disk?).plugging in the external Soundcard again.moving all Kexts in Extensions to the Desktop.When trying to boot into Online Recovery mode, it reproducibly: downloads everything, starts booting, then flickers to black once, then shows a beach ball, then turns off. We could probably fix this in Recovery mode (but can't get in there) or in Single user (but this is Mojave, so doesn't exist). In Safe mode, we can run First Aid and it complains "invalid btn_btree.keycount" and "fsroot tree is invalid – which it cannot fix. The D hardware test says the hardware is fine. However, when trying to boot into Recovery mode (on disk or online), it turns off before the mode is fully loaded. The odd thing is: We can boot into safe mode and it runs fine (except sound). Supporting that, audio doesn't work in safe mode and we see no internal sound device in normal mode. The last thing he remembers doing differently is plugging in an external sound card (but it didn't crash until the next day). This way, you will be able to recover lost data from your Mac.My friend's Macbook Pro Retina Early 2015 turns off abruptly to a black screen (as far as I can tell without logs) after booting. But if the Utility can't help you out, then you can rely on Recoverit Data Recovery. You can repair your device by using the Mac Utility. Hopefully, you have gathered more than enough information if your Mac won't boot into recovery mode. During recovery, make sure that you don't save the files in the same location because it may lead to data loss again. You can select multiple files at a time and have a preview of them.įinally, tap on the Recover option, and the files will be restored on your drive. The software will sort out the files according to format to make the search easier. When the scan completes, the files will be listed on the screen. Typically, the software will run an all-around scan and search for the lost and deleted files on the entire drive. If you don't know which drive to search, tap on the "I can't find my partition" option and hit the Start button. Launch the software and select the drive from where the data files are lost. After it is installed, follow the steps given below to recover the lost files: Step 1: Select a partition. So, you can easily download it on your Mac OS X. The software is available for Mac and Windows both. You can download the software from their official website. To start Mac in recovery mode, here are the steps that you need to follow: Mac will enter the internet recovery mode if the boot sector is missing or the recovery partition is damaged or corrupted. It can run a quick test of the memory and hard drive to look for issues. Internet recovery starts up Mac from Apple's servers directly. When the Mac system or volume is damaged, it is better to use the Internet recovery mode instead of standard recovery. It will be better if you already have a backup of the data files stored on Mac otherwise, they will get lost.Ĭhoose the "Reinstall Mac OS X" option from the Utility window and wait while the new copy of Lion is set up and installed on your device. If none of the methods work out to repair the Mac OS X, then the last option left will be re-installing. When you finish the process, Mac repair will be done, and you will access it. Connect to a network and follow the steps guided by the utility.A globe icon will appear on the screen with a status bar. Directly access the internet recovery mode by long-pressing the Option + Command + R during the restart.
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