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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 10-31-2001, 09:31   #1 (permalink)
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Nokia 7110 - "Contact Service"- problem


Hello to all,<br /> <br /> <br />Nokia 7110 was felt (dropped) on the floor.<br /> <br />After that it shows "contact service".<br /> <br />Anybody sugestions what is the problem?<br /> <br />Can something like that cause errors in software of the phone. Is it smart to try flash it (full flash - upgrade)?<br /> <br /> <br />Thank you<br /> <br />Regards,<br /> <br />nicos
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Old 10-31-2001, 13:44   #2 (permalink)
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just resoldier the cobba nd the ccount and sure of that contact service without back lighting ...if the contact service apear with the back light u must check the ccount and soldier the eeprom ... if it say insert sim card and turn into contact service just flash the phone.. many thanx if u e-mail me the result
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Old 10-31-2001, 14:25   #3 (permalink)
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[QUOTE]Originally posted by raheeeeb:<br />[QB]just resoldier the cobba nd the ccount and

<br />Thank you very much, i'll be notify you and forum when i try this (first i must find hot air station ;-) ).

P.S. This is advice what i get by mail so i want to share with others:

----- Original Message ----- <br />From: &lt;[email protected]&gt;<br />To: &lt;[email protected]&gt;<br />Sent: Wednesday, October 31, 2001 10:56 AM<br />Subject: Try this out for 7110 .. good luck!!

<br />&gt; has same problem with a 3210 and 8210.<br />&gt; <br />&gt; it is not s/w prob.<br />&gt; <br />&gt; do this at your own risk. The probelm is in the CCONT BGA chip. The <br />&gt; shock it received disloged some contact under it most proabably.<br />&gt; <br />&gt; i was lucky enough to fix mine with this method. Do this at your own <br />&gt; risk!<br />&gt; <br />&gt; with a hot air ****er heat up board evenly for 15-20 secs. after that <br />&gt; quickly cool down the board with an electronic contact cleaner spray. <br />&gt; Then with a brush gently brush the board. Conenct phone back and <br />&gt; hopefully contact service should be gone. If not try heating up a bit <br />&gt; longer but the more you continue the risky it gets to kill the <br />&gt; phone!!!<br />&gt; <br />&gt; WARNING!:- if u heat a lot you can kiss the phone good bye. The BGA <br />&gt; chips are the most delicate.<br />&gt; <br />&gt; Good luck.. u ll need it<br />&gt; <br />&gt; best regards<br />&gt; alv
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Old 02-06-2003, 09:05   #4 (permalink)
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Yes. Rehot cobba & ccount.

Last edited by Bobi; 02-06-2003 at 09:11.
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Old 02-06-2003, 13:17   #5 (permalink)
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Just CCONT faulty, not COBBA. Reball or change CCONT!
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Old 02-09-2003, 13:35   #6 (permalink)
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I'd try to flash it first before I even open the phone.

If cant be solved by flash, then go ahead and open it up.

Regards,
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