09-12-2021, 03:59 AM
The six pins on the back can be used for an extra battery - and will be in the keyboard case which is hoped to be in the store later this month. The 2g/3g/4g antenna is already using a coax connector (UFL I think) so changing to a better antenna should be easy. The GPS antenna is trickier but I think there have been a couple of attempts, one soldering a coax cable to the board in place of the sprung contacts, and another enlarging the existing printed antenna with some aluminium tape.