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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 09-13-2004, 18:44   #1 (permalink)
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Question 33XX RAM work


Hi all,

I've faced lot of problem about reballing Flash / RAM ICs in Nokia 33xx phones. "RAM BAD" error message while Flashing I used to rehot or resolder these ICs.

In many cases reballing of Flash IC has been successful BUT reballing or even heating of RAM IC has FAILED IN ALL CASES.

I would like to know PROPER workmanship on this RAM IC. What precautions or care shoul I take.

regards
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Old 09-13-2004, 19:06   #2 (permalink)
DMD
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@ rajunmobile

that error message is proberly from the old dct3 flasher by rolis in general that error has nothing to do with ur ram ic its normally dry joints cable etc but the error given is "ram bad" no wonder ur not coming right with the phones

Regards D.
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Old 09-14-2004, 15:19   #3 (permalink)
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@ Mr. DMD
Thanks for reply. But I tried to Flash with Rollis, Knok95, Geo etc. In all software the error message is "RAM bad".

@ Mr. azampk
Thanks for reply and picture. I measured the component is OK. I think it is an inductor and while power ON it will have @1.9 volts. do you refer any other check ?

**********

Recently 2 boards have this problem. Both are taking Flash but not power ON. ( one is 3350 and other is 3315 ). What should I do ?.
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Old 09-16-2004, 08:46   #4 (permalink)
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@ Mr. azampk

I mean, I measured the component as per your suggestion and found in OK condition. As per my knowledge it is an inductor and it provides voltages for Flash/RAM ICs.

To all

I would like to know working on Flash / RAM ICs. It may require some special techniques which I may not have. Thanks in advance.

regards.
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