I am trying to root Lenovo k8 plus after unlocking Bootloader try to install twrp as somehow the twrp recovery doesn't open and phone struck in the bootloop. Then I fastboot the device and connect to pc then opening minimal fastboot cmd. It doesn't show adb device listed but show fastboot devices listed . I think usb debugging is not on by system doesn't restart (may be there is no ROM). Help! What Should I do ?
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