First set of devices which have received the A15 build

[piero]

i see incoherence here between the title and the fastboot command :

@piero

Temporarily Booting a custom recovery using fastboot

1. Connect your device to your PC via USB.
2. On the computer, open a command prompt (on Windows) or terminal (on Linux or macOS) window, and type:

adb reboot bootloader

3. Once the device is in fastboot mode, verify your PC finds it by typing:

fastboot devices

4. Flash a recovery image onto your device

fastboot flash boot recoveryfilename

I can be wrong, but I think it shoud be :

4. temporary boot a recovery image onto your device

fastboot boot recoveryfilename.img

Otherwise title must be changed to :

Flash a custom recovery using fastboot