Don't take this as an advice, because I don't know electronics and it may damage your phone and keyboard!
But I did a simple test using a basic multimeter to probe the 3 pins on the keyboard that connect to the pins on the phone: 5v, ground and DCIN (https://wiki.pine64.org/wiki/PinePhone#Pogo_pins). The keyboard was connected to an old PC to charge a bit while doing the test.
For mine I got values as high as 5 which seemed within spec (for one or both of 5v and DCIN pins - I didn't keep a proper record). And when I hold the button on the keyboard for 15 seconds I got some low values (below 2V).
For easy measurement, I opened the keyboard to it's fullest extend (180 degrees) and laid it on a table , because otherwise it was unstable and I got wrong values most of the time.
And as a side note: the battery on the phone and on the keyboard were depleted overnight and they have at most 0-1%, so I'll wait for a few hours before I can turn it on. I'm using the shim hack: 3 pieces of thick paper (each folded at least once) to make contact.
But I did a simple test using a basic multimeter to probe the 3 pins on the keyboard that connect to the pins on the phone: 5v, ground and DCIN (https://wiki.pine64.org/wiki/PinePhone#Pogo_pins). The keyboard was connected to an old PC to charge a bit while doing the test.
For mine I got values as high as 5 which seemed within spec (for one or both of 5v and DCIN pins - I didn't keep a proper record). And when I hold the button on the keyboard for 15 seconds I got some low values (below 2V).
For easy measurement, I opened the keyboard to it's fullest extend (180 degrees) and laid it on a table , because otherwise it was unstable and I got wrong values most of the time.
And as a side note: the battery on the phone and on the keyboard were depleted overnight and they have at most 0-1%, so I'll wait for a few hours before I can turn it on. I'm using the shim hack: 3 pieces of thick paper (each folded at least once) to make contact.
