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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 02-01-2007, 17:09   #1 (permalink)
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Thumbs up 3120 Network Problem- Experts Only


Hello Experts
Dear Friends
I Have Got A Handset From My Friend,
He Is Expert, But He Cant Solve It
I Am A Beginer To This Field
I Know Basics, I Want To learn Now
Here Is A Problem Solve It
My Friend Got A Handset 3120 Network roblem, He Was Not Able To Solve It, He Followed These Steps
1. changed Antena Switch
2. PF IC Changed
3.All Tracks Are Checked
4.Power Supply IC (reoiled)
5.Klashed With UFS- Saras SOft
6.And He Did Network Software

Please Solve This Problem,
Thanks In Advance

Last edited by serchingeye; 02-01-2007 at 17:23.
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Old 02-01-2007, 23:21   #2 (permalink)
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3120

Quote:
Originally Posted by serchingeye View Post
Hello Experts
Dear Friends
I Have Got A Handset From My Friend,
He Is Expert, But He Cant Solve It
I Am A Beginer To This Field
I Know Basics, I Want To learn Now
Here Is A Problem Solve It
My Friend Got A Handset 3120 Network roblem, He Was Not Able To Solve It, He Followed These Steps
1. changed Antena Switch
2. PF IC Changed
3.All Tracks Are Checked
4.Power Supply IC (reoiled)
5.Klashed With UFS- Saras SOft
6.And He Did Network Software

Please Solve This Problem,
Thanks In Advance
dear i think there is mjolner IC fault see my pic , before this check supply of PA ,
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File Type: jpg 3120%20tx.jpg (88.4 KB, 331 views)
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Old 02-02-2007, 10:35   #3 (permalink)
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fo my exeperience most of 3120 3100 network prob
cause by mjolner as the graph above
reball reheat or replace but most of it replace would be a better option
if reheat will only solve ur prob temp... reball as well
replace can last longer but don expect tis prob will solve 4ever
cuz tis prob mostly cause by the bga ball came off from the board due to nk manufacturer prob.. tis phone when u put inside pocket or slightly twisted the board will giv u tis prob... uem are one of the pain in the a** prob too ...
regards
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Old 02-02-2007, 10:58   #4 (permalink)
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May be you have not changed antina swich correctly tri to change again
otherwise make a antina switch jumper like picture.
B.r.
psunil.
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File Type: jpg 3100 6100 antina switch from prakash.jpg (75.2 KB, 144 views)
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Old 02-02-2007, 13:22   #5 (permalink)
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Thanks For Replay
I Will Try
If AnyBody know Exact Solution For This
Please Reply To This Post
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Old 02-02-2007, 13:36   #6 (permalink)
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thankx friends.
goood
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Old 02-02-2007, 13:38   #7 (permalink)
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try wit hot air UEM i.t the problem
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