Please follow all directions carefully.
There is an excellent unofficial TWRP by @eng.stk at https://forum.xda-developers.com/oneplus-6/development/kernel-t3800965 I have installed it successfully from here: https://forum.xda-developers.com/devdb/project/?id=27466#downloads using the following method:
This unofficial TWRP by @eng.stk has working haptic, brightness and MTP
If you already have anotherTWRP installed, you can install the new zip from your TWRP but remember if you had Magisk before, to reboot TWRP and flash Magisk again
For an excellent guide on the A/B slots, check out @iElvis thread: https://forum.xda-developers.com/oneplus-6/how-to/guide-noobs-guide-to-b-partitions-op6-t3816123
There is an excellent unofficial TWRP by @eng.stk at https://forum.xda-developers.com/oneplus-6/development/kernel-t3800965 I have installed it successfully from here: https://forum.xda-developers.com/devdb/project/?id=27466#downloads using the following method:
This unofficial TWRP by @eng.stk has working haptic, brightness and MTP
If you already have anotherTWRP installed, you can install the new zip from your TWRP but remember if you had Magisk before, to reboot TWRP and flash Magisk again
- NOTE: YOU MUST HAVE STOCK OOS 5.1.5 through latest OOS 9, OR ANY OF THE CUSTOM ROMS
- NOTE: YOU MUST HAVE UNLOCKED BOOTLOADER
- NOTE: I HAVE NOW PERSONALLY TESTED THAT THIS METHOD WORKS IF YOU HAVE OOS 5.1.6 through latest OOS 9
- NOTE: FASTBOOT COMMANDS MUST BE INSTALLED AND TESTED ON YOUR PC
- NOTE: YOU MUST HAVE MAGISK 17.x ZIP ON YOUR PHONE
*** YOU MUST FOLLOW ALL STEPS EXACTLY ***
- Download twrp-3.2.3-x_blu_spark_v9.86_op6.img from the above site to your pc
- Download twrp-3.2.3-x_blu_spark_v9.86_op6.zip from the above site to your phone
- Hook phone to pc USB with factory red cable (or other usb-c cable that you have tested)
- Reboot phone into bootloader
- On your pc, go to the location where you downloaded the twrp image
- Type fastboot devices to make sure that you get a response showing your phone and serial number
- Type fastboot boot twrp-3.2.3-x_blu_spark_v9.86_op6.img
- Your phone will boot into twrp YOU WILL PROBABLY BE ASKED TO ENTER YOUR PIN/PATTERN/PASSWORD.
- From twrp, install the twrp-3.2.3-x_blu_spark_v9.86_op6.zip that you downloaded on your phone
- Disconnect your phone from the pc
- Reboot twrp back into recovery. You should now be rebooted to the new twrp.
- If you had magisk installed, then flash magisk again or you will bootloop back to twrp
For an excellent guide on the A/B slots, check out @iElvis thread: https://forum.xda-developers.com/oneplus-6/how-to/guide-noobs-guide-to-b-partitions-op6-t3816123
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