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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 09-21-2001, 13:12   #1 (permalink)
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Post 6210-No network!!??!!


Hi!<br />I have one of this phones with no network,after few seconds from starting the phone,and than it disepears.<br />?????<br />My best regards to all
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Old 09-21-2001, 19:52   #2 (permalink)
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cosmo, try to reflow or change the antenna switch z900 . Its located under the P.A sheilding. I've found broken soldering on this component. I think its better if u change it need to unsolder sheilding though.
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Old 09-22-2001, 08:01   #3 (permalink)
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[quote]Originally posted by capslock:<br /><strong>cosmo, try to reflow or change the antenna switch z900 . Its located under the P.A sheilding. I've found broken soldering on this component. I think its better if u change it need to unsolder sheilding though.</strong><hr></blockquote>

Tanks for your quick replay.Please tell me what it's writte on this swich antenna.
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Old 09-22-2001, 14:31   #4 (permalink)
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its just above the P.A on the left has NN044 marking on it . Silver component. Check for broken solderings under a microscope . Another reason is oxidisation or poor connection of pin 1 on Cobba. If pads are oxidised Cobba wil have to be removed and the pad cleaned up .Try reflow Cobba with hot air first though. I've found the 6210's & 3310's dont respond to reflow as the 8210's & 3210's do they are harder to fix.
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Old 09-22-2001, 18:59   #5 (permalink)
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Hi!<br />Network indicator dissapears after few second when P.A. is not working. Try to replace P.A. if antena switch is good.
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