Continuing the discussion from FP2 kills some SIM cards:
The FP1 has a little cell battery, which is in charge () of advancing the clock, when the normal battery is taken out of the phone. Unfortunately this cell battery went dead after only about a year for most of FP1-owners and there is no way to replace it.
This story is about the FP2 though:
Is this true? Does the FP2 indeed not have a cell battery to help keeping the phone’s clock up to date?