09-20-2005, 05:20 PM
Join Date: Oct 2004
Location: Fort Worth, Texas
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| | Hidden Battery inside 7100g
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I had my first opportunity to take a 7100 apart today. A user put it on her car and drove off with it and it smashed. It was totally dead but when disassembled it would light the display and make GPRS noises when you were near a speaker. She ended up with a 7290 loaner.
RIM hid the screws for the phone under the metal strip across the back so you have to peel it off and basically exposing yourself as a warranty-breaker.
The interesting part was the hidden battery inside that I found. There is a very small 4 or 5 cm watch style battery soldered to the main board in the phone. I'm not sure as to its purpose and/or what will happen to the phone when that bettery eventually dies in a few years time. Most likely by then you will have changed phones but you never know things can die early.
Maybe because the G is the generic version, the battery holds some carrier specific information in static RAM or perhaps the PIN is held there. I could see a situation like in SUN workstations, when the battery dies, the Serial (or in the phone's case, the PIN) becomes FFFFFFFF
Prior: BES: 7510, 7520, 7290, 7230, 7130, 8220 (No Data Plan), Droid Eris
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