K1786 I’ve completed all steps I’m now on graphene. But now I need to lock the bootloader again,
The web installer has a "lock bootloader" function. To do it, unplug the phone from the computer, shut the web browser down, go back to Fastboot mode, do not activate the "Start" function on the phone, launch the web browser, scroll down to ""Locking the bootloader", connect the phone, and press the button. Then it will be necessary to carefully follow the directions that appear.