This is an old revision of the document!
BOOTLOADER MODE: Phone shut down. Press and hold the volume down and power buttons at the same time. When the Google splash screen appears, release them.
Accessing the Bootloader with ADB:
adb reboot bootloader
RECOVERY MODE: Accessing Recovery with ADB
adb reboot recovery
FASTBOOT MODE:
Fastboot is a diagnostic tool. It’s essential if your phone fails to boot for some reason. It’s most commonly used to install a custom recovery. Fastboot are utilities that unlock access. Fastboot works when Android is not running, and the device is booted into “Fastboot mode”. It enables you to access all your device’s partitions — not just the Android system, but also the data partition, the boot partition, and so on.
See this link: https://forum.xda-developers.com/p9/how-to/huawei-p9-brick-easiest-to-unbrick-t3662348/page2#post77267214
TWRP storage 2 power, letras amarillas, 2 abajo
RECOVERY MODE ERROR:
Func NO: 11 (recovery image)
Error NO: 2 (load failed!)
Maybe a solution: needs x3 buttons pressed:
https://forum.xda-developers.com/p8lite/p8-lite-2017-discussion/huawei-p8-lite-2017-bricked-t3612130
https://www.stechguide.com/download-huawei-p8-lite-2017-android-nougat-firmware/
OR