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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 11-18-2010, 12:23   #1 (permalink)
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Nokia x6 no network

Hi after changing digitizer on nokia x6 network gone, disassemble and reassemble few times the problem still there all seems to work fine except for the network,try to find netork manualy from the menu couldn't find any, I've checked the antenna conection ( two pins at the bottom) looks alright.

any idea what could be the problem???
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Old 12-25-2010, 19:54   #2 (permalink)
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Wink x6 network

I have the same trouble .. pulse, though the device .. times the process is still done the same network .. Thank you one if help...
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Old 12-25-2010, 20:23   #3 (permalink)
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the solution that may help and guide to repair Nokia X6 having a No Network Signal reception. If ever tried to restore and update the device firmware but nothing happens, this solution shows the corresponding RF circuit of Nokia X6 PCB board that might something wrong, faulty or being damaged.

Nokia X6 No Network Signal problem solution


Repair Tips:
1.
Apply and supply voltage to the PCB board using desired DC regulated power supply voltage of 3.7 volts. Check the supply voltage from the cellphone's battery through to the corresponding components highlighted in red color, these are battery supply voltage filter coils that being feeds to RF circuit components. IF there are no voltage readings on that areas, check the continuity of the battery positive terminal on that certain parts. Apply jumper if the line is cut or open. check also the filter coils and replace if found damaged.
2. Check and measure the secondary voltage output from the RF DC to DC converter chip highlighted in orange color. If there is no voltage readings on that spots, rework or replace the DC to DC converter IC.
3. Check or replace the Clock crystal oscillator. (VCTXO)
4. Rework or replace RF Power Ampilifier IC (PA)
5. Rework or replace Front End Module IC (FEM)
6. Rework or replace Radio Frequency IC (RF IC)
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Old 01-22-2011, 06:13   #4 (permalink)
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hi guys, i have a x6 network problem some time showing 1 bar some time 2,3 nd some time nothing plz help me
THANKS in advance
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Old 05-11-2011, 15:04   #5 (permalink)
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I have X6-00 no network but some time 3G is prompt, so any working solution ..?
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Old 08-21-2011, 03:59   #6 (permalink)
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Nokia X6 No network Signal solution
Nokia X6 No network Signal solution
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Old 05-09-2012, 13:27   #7 (permalink)
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Cool

hai guys,

my NOkia x6-00 8GB has the same problem... it sometimes not detecting network. but recently i found out that if i tap the phone on a hard surface by the top- left portion of its back side-- its screen should face towards us-- that is exactly the back portion of the writing "X6"... it starts working... its some hardware problem-loose contact like.... make sure that your phone is in a carry case before tapping the handset.....

please mail me if anybody know how to make it working without this tapping...

thanks and regards
arunllkply@gmail.com
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Old 06-04-2012, 11:52   #8 (permalink)
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x6

Quote:
Originally Posted by khokon khan View Post
the solution that may help and guide to repair Nokia X6 having a No Network Signal reception. If ever tried to restore and update the device firmware but nothing happens, this solution shows the corresponding RF circuit of Nokia X6 PCB board that might something wrong, faulty or being damaged.

Nokia X6 No Network Signal problem solution


Repair Tips:
1.
Apply and supply voltage to the PCB board using desired DC regulated power supply voltage of 3.7 volts. Check the supply voltage from the cellphone's battery through to the corresponding components highlighted in red color, these are battery supply voltage filter coils that being feeds to RF circuit components. IF there are no voltage readings on that areas, check the continuity of the battery positive terminal on that certain parts. Apply jumper if the line is cut or open. check also the filter coils and replace if found damaged.
2. Check and measure the secondary voltage output from the RF DC to DC converter chip highlighted in orange color. If there is no voltage readings on that spots, rework or replace the DC to DC converter IC.
3. Check or replace the Clock crystal oscillator. (VCTXO)
4. Rework or replace RF Power Ampilifier IC (PA)
5. Rework or replace Front End Module IC (FEM)
6. Rework or replace Radio Frequency IC (RF IC)
very nice post, informative with procedures
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Old 11-11-2012, 18:39   #9 (permalink)
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Quote:
Originally Posted by nathan111284 View Post
very nice post, informative with procedures
its also useful to eliminate the on board serial antenna conector , mostly that's the fault's source
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Old 11-05-2013, 23:19   #10 (permalink)
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ok,, i'll try that................................
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