Well, i have been opening up stuff ever since i was a child with a screwdriver, but now that i am studying engineering, It actually adds more fun to it. I had an old Nokia 2100 that i would take/sneak to school. Now its in a bad shape and the screen needs replacement. It had been lying on my desk for a few months until now i wanted to break it up and see how “Nokia” did it back then.

Thanks to  nokia`s longevity, it seems that the phones are still somehow alive , thanks to which the repair supplies market is not dead and turns out to be a helpful resource to what the black chips on the board do.

The beautiful board inside the phone

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The MAD2WDIC V16 baseband gsm processor from TI

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The COBBA(Audio I.C. 4370793) It seems to be handling all the audio processing on the device. on the side is the Charging Control I.C. 4370621 with a big SMD 0.22 resistor for current sensing

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The complete PCB. It also has a Signaling processor 4370781 HAGAR, a Chip Flash LRSI3AI and a NMP707 series Chip Power Supply IC-NMP70719

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The design is such that everything connects to the main pcb using copper strip contacts making is highly modular,repairable and shock absorbent as we know nokia phones used to be.

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4370433 IC i could not find anything about

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The Buzzer..

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The contacts galore

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The display and Keypad.

To view the complete album go to my flickr page here!

Hoping to see some comments! 😀

 

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3 thoughts on “Digging into an old Nokia 2100

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