I am trying to root my Lenovo K8 Plus after unlocking bootloader. I try to install TWRP and somehow the TWRP recovery doesn't open and the phone is struck in the bootloop. I then fastboot the device and connect to PC and open minimal fastboot cmd. The phone wasn't listed in adb device, but listed in fastboot devices.

I think usb debugging is not turned on because the system doesn't restart (maybe there is no ROM).

What should I do?

  • 1
    don't mix up adb with fastboot
    – alecxs
    Jul 18, 2019 at 20:45
  • Hi, I try to make your post more clearer. This requires me to edit your sentences and add more words, which may not be your intention. Please check and see if I understand you correctly.
    – Ooker
    Dec 28, 2020 at 15:10

1 Answer 1


Common mistake these days people do not read the instructions.
Here is a example Warning from TWRP site:

This device uses dm-verity!

This means that swiping to allow system modifications will prevent you from being able to boot if you are using the stock kernel. In order to bypass dm-verity's boot prevention, you will have to install a kernel that has dm-verity disabled in the fstab.

Go back to the Tutorial where you have downloaded TWRP and read, i am pretty sure there is something you forgot to flash.
Universal DM-Verity ForceEncrypt Disk Quota Disabler

Another common mistake after flashing TWRP you must not boot into android. Reboot straightforward into recovery right after flashing, otherwise your custom recovery will be replaced with stock recovery

  • Universal Disable_Dm-Verity_ForceEncrypt.zip has issues with encryption, no-verity-opt-encrypt.zip is recommended instead
    – alecxs
    Apr 3, 2020 at 13:46

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