[SOLVED] I completely bricked my brand new OnePlus 6T phone

Hello everyone, i installed /e/ on my brand new OP6T but it was not working properly (my phone was powering off after 10s unplugged and as the issue was opened 5 months ago i thought it would be a good thing to go back to stock rom.

I tried to restore my backup but it failed miserably.

Anyone could help me installing /e/ properly or at least go back to stock rom ?

All i can do now is accessing to fastboot but my mac don’t seems to see the device when i type “adb devices” …

Thank you.

Regain your privacy! Adopt /e/ the unGoogled mobile OS and online servicesphone

With the phone in fastboot mode you would use fastboot devices, adb doesn’t work in fastboot mode.

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Yes i got my phone here with its id showing up.

I then tried to flash TWRP to reinstall a stock rom using fastboot flash boot <recovery_filename>.img but when i reboot with fastboot reboot recovery it gets me straight to fastboot mode.

Here is what happen when i try to boot the image from fastboot

    fastboot boot twrp-3.2.3-2-fajita.img
Sending 'boot.img' (30288 KB)                      OKAY [  0.694s]
Booting                                            FAILED (remote: 'Failed to load/authenticate boot image: Load Error')
fastboot: error: Command failed

First, I suggest that you use the latest TWRP release (3.3.1-1) for your device.
Also, if I’m not wrong, when in fastboot mode you should be able to select “Reboot to recovery” by pressing the volume-down key and confirming by pressing the power button.

I tried rebooting manually to recovery using the phone but it keeps going in fastboot mode (just tried again with 3.3.1-1).

fastboot flash boot twrp-3.3.1-1-fajita.img
Sending 'boot_a' (31136 KB)                        OKAY [  0.730s]
Writing 'boot_a'                                   OKAY [  0.203s]
Finished. Total time: 0.942s

Just to be sure: are you following the instructions on the official TWRP page?
You should have put a .zip file inside your phone’s memory ( twrp-installer-3.3.1-1-fajita.zip )

Just to be sure: are you following the instructions on the official TWRP page?
You should have put a .zip file inside your phone’s memory ( twrp-installer-3.3.1-1-fajita.zip )

Ok i was following these intructions :

It seems that i might have f****d up the partitions …

How can i put the .zip file without adb ?

I’m sorry, but I have no idea :disappointed_relieved:

I’m currently trying to use this topic to restore every partitions :

Stay tuned o/

I can now boot TWRP using

fastboot boot twrp-3.3.1-1-fajita.img

but it’s stuck on boot.

Ok i just followed the steps in the thread up here except the ‘all criticals partitions’ part and voilà, my phone is now booting.

I hope i did not break anything vital.

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Hello,

Last monday, i bricked my Oneplus 6T.
You can see my isse and my solution here :slight_smile:

Good luck,

martoni

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Ex4l
I know nothing about Mac’s but know Linux which is similar and I was in your position with a Samsung Galaxy SIII Sunday. If your phone takes an SD card and you have access to a Windows computer, then put the card in the computer, open it and copy and paste the TWRP file to the card. Put the card in the phone and you should be able to open it as it installs to root. Install TWRP.
I hope this works, then look then for further instructions.