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Go Back   GSM-Forum > GSM & CDMA Phones / Tablets Software & Hardware Area > Nokia > Nokia Hardware & Hardware Repair

Nokia Hardware & Hardware Repair all what you need for Hardware Repairing for Nokia Phones. Before writing any thread here try to check the Frequently Asked Questions Section.

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Old 01-10-2009, 19:26   #1 (permalink)
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Question 2100 vibrates conitnously with leds ???


nokia 2100 vibrates conitnously with led
what to do
the phone is short
please help me what to do with this ??
thanks in advance
regards
dapinder
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Old 01-10-2009, 19:40   #2 (permalink)
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first wash full pcb with petrol and leave to dry, or dry with rework station,. check phone...
if not work problem likely from PA(power amp) or UI ic
replace UI chip first then check fone, if not work PA
Good luck...
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Old 01-10-2009, 20:04   #3 (permalink)
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the client told me
he used some other battery for this
and the phone got off with a blink and vibration
i think he used a high voltage battery
what to do ??
thanks in advance
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Old 01-10-2009, 20:10   #4 (permalink)
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Quote:
Originally Posted by dapinderjit View Post
the client told me
he used some other battery for this
and the phone got off with a blink and vibration
i think he used a high voltage battery
what to do ??
thanks in advance
clients never say truth .. they like to make excuse
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Old 01-10-2009, 20:14   #5 (permalink)
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do this

If High volt damage. first remove ccont ic (power ic) read +ve and gnd with multimeter, if short is gone, change ccont ic and all will be ok... if short remains change PA
Good luck..

Last edited by thomp4pal; 01-10-2009 at 20:19. Reason: typo error
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Old 01-10-2009, 20:23   #6 (permalink)
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cleaned the pcb and dried it with rework station
no help !!!
yes its 100 % high voltage damage
have i need to reball the power ic or rebaal will do
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Old 01-10-2009, 22:08   #7 (permalink)
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Do this

Quote:
Originally Posted by thomp4pal View Post
If High volt damage. first remove ccont ic (power ic) read +ve and gnd with multimeter, if short is gone, change ccont ic and all will be ok... if short remains change PA
Good luck..
Do this as post result,
~ Remove CCont (power ic), then clean ball graid to resolve shorts
~ Read possitive and negative of pcb pads with Multimeter for shorts
~if no shorts, Replace CCont with new one .
problem will be solved...
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