Android Bootloader Tips and Tricks

Android SDK Platform-Tools is a component for the Android SDK. It includes tools that interface with the Android platform, such as adb, fastboot, and systrace. These tools are required for Android app development. They're also needed if you want to unlock your device bootloader and flash it with a new system image.

https://android.stackexchange.com/questions/20021/automatically-power-on-android-when-the-charger-is-connected/216785#216785?newreg=76f7af52ab7d4b3e8a034879b4b94fea

So, there are many ways to do so. The most proper one, as always supported by Google (and more and more by others, e.g. nvidia from nougat) is this fastboot command

fastboot oem off-mode-charge 0




https://android.stackexchange.com/questions/164569/unable-to-run-fastboot-commands-waiting-for-device/164577
Go to Settings > Developers Options > USB Debugging then enable it.

Connect the device to the computer, drivers should be installed

Open a terminal and check if the phone is detected: adb devices (Windows)

You should get some hex numbers as output

Then reboot to the bootloader: adb reboot-bootloader

Then check if the device is detected in Fastboot: fastboot devices

Finally proceed with the Unlocking process: fastboot oem unlock or fastboot flash unlock if the previous doesn't work.