I've managed to rip off the positive soldering pad (the bottom side of the bupbat) while replacing it on one of my spares. Clumsy me. I am not too hart-broken about that: it was the phone with non-working telephony that I use only for testing. The old battery was dead anyway, so I have not actually lost any functionality.

Still, does anyone know if there is an alternative pad somewhere else on the board?