Very strange 3310 problem.. - GSM-Forum

sergo_zmeia · 12-20-2004, 13:41

Hi all!
I have this unit to repair...phone came with no network problem...I reheat the HAGAR and phone picks up network..but the strange thing is that it has 900MHz only for first 3 cals...than only 1800MHz...
Any one got a tip?
Thanks and regards!
sergo_zmeia

MrHazeem · 12-20-2004, 19:01

When u got 3310 handset with 900mhz or 1800mhz some times and then no network , "RX unstable" this means u have faulty COBBA, try reball or change ...

-----------
MrHazeem

Azampk · 12-20-2004, 19:56

and many times form antina swithc but 80% from coba change coba
*******************Azam**********************

YamahaR1 · 12-20-2004, 20:10

Hi

How do you know it has 900MHz only for first 3 cals...than only 1800MHz?
Did you relpace PA?

sergo_zmeia · 12-21-2004, 10:24

Thanks guys..Ill try that...
@YamahaR1, If U dont have specrum analiser..putting phone close to a radio during a call can give U info bout the band....If U here bzzzzzzzzzzz pukr pukr pukr...Thats 900Mhz...If not thats 1800Mhz
Regards!
sergo_zmeia

12-20-2004, 13:41	#1 (permalink)
sergo_zmeia Freak Poster Join Date: Jun 2003 Location: Bulgaria Age: 48 Posts: 471 Member: 32284 Status: Offline Thanks Meter: 4	Very strange 3310 problem.. Hi all! I have this unit to repair...phone came with no network problem...I reheat the HAGAR and phone picks up network..but the strange thing is that it has 900MHz only for first 3 cals...than only 1800MHz... Any one got a tip? Thanks and regards! sergo_zmeia

12-21-2004, 10:24	#5 (permalink)
sergo_zmeia Freak Poster Join Date: Jun 2003 Location: Bulgaria Age: 48 Posts: 471 Member: 32284 Status: Offline Thanks Meter: 4	Hi! Thanks guys..Ill try that... @YamahaR1, If U dont have specrum analiser..putting phone close to a radio during a call can give U info bout the band....If U here bzzzzzzzzzzz pukr pukr pukr...Thats 900Mhz...If not thats 1800Mhz Regards! sergo_zmeia

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12-20-2004, 19:01	#2 (permalink)
MrHazeem Freak Poster Join Date: Jul 2002 Location: MAD Age: 50 Posts: 483 Member: 13545 Status: Offline Thanks Meter: 2	When u got 3310 handset with 900mhz or 1800mhz some times and then no network , "RX unstable" this means u have faulty COBBA, try reball or change ... ----------- MrHazeem

12-20-2004, 19:56	#3 (permalink)
Azampk No Life Poster Join Date: Jun 2003 Age: 37 Posts: 865 Member: 30303 Status: Offline Sonork: 1001579198 Thanks Meter: 17	and many times form antina swithc but 80% from coba change coba *****************Azam********************

12-20-2004, 20:10	#4 (permalink)
YamahaR1 Freak Poster Join Date: Feb 2002 Location: I am outside your house, I am armed Age: 56 Posts: 482 Member: 9698 Status: Offline Thanks Meter: 0	Hi How do you know it has 900MHz only for first 3 cals...than only 1800MHz? Did you relpace PA?