"isa --------{@" wrote in message
...

tried just now ddp at phone's contacts removing battery pack
(I plugged in the charger) I measure 4.07V between + and -
and 4.07V between - and center contact. In the battery pack
the mid contact is linked to - contact via a 10K smd resistor,
it's probably a PTC to check battery temp I guess.

I'd have guessed a fuse - if it's a PTC it should be almost zero ohms.
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