How can I operate 3310 without battery (only getting power from
the charger socket or from 2 battery terminals)?
I've tried to supply dc 3.6V to the battery termianal on the phone,
but it didn't work. There are 4 terminals in the phone, the outer 2 are for + and - supply respectively. What about the inner pair?
Are they for checking battery tempareture? How to similute them?