Init: xiaomi-beryllium / POCO F1

[raymens]

There are 2 variants depending on the panel used (EBBG or TIANMA). This one (as my phone is) is currently focused on the TIANMA version.

Managed to get into stage-2 (using hello, plasma and phosh).

Working features:

• (Speaker) Sound
• Wi-FI

Uncertain/Unknown:

• Bluetooth (visible from others, no scan results)
• Camera
• Microphone
• Ear speaker
• Phone calling / text / ...