My FP4/Iodé6 seems close to an ultimate bricked state. (who can be sure?), after a 5 seconds jump into a toilet. See: Bricked FP4 upon repair
I disassembled again (and again), and cleaned each and every connector with “contact spray” (containing 2 ethyl alcohol). Upon reassemble still no screen at all, not even the usual start up screen anymore.
Upon connecting to PC I do hear a beep and it is recognised by ADB:
PS C:\platform-tools_r33.0.3-windows\platform-tools> adb devices
List of devices attached
108d628b unauthorized
Could anybody provide suggestions of how to copy the data residing on this phone?