3310 signal about 5 s then drop - GSM-Forum

microera · 07-02-2002, 15:40

When power 3310 I have signal for about 5s then signal disapear!
I rehot cobba but at this moment I havn't signal anymore!

(

I think that PA is in fault?

At this moment maybe cobba too?

thanks for answers!

Hanukkah · 07-02-2002, 21:38

If you have full signal then drop try PA and Ant Switch. But I think you will have to reflow your COBBA first to get network rx.

F C · 07-02-2002, 22:06

100% agree with HANUKKAH--

check vco also--

best regards
gohar

bello · 07-03-2002, 05:14

Change COBBA, not reflow.

Regards.

druid · 07-03-2002, 19:42

Hi
I have the same problem did you fix it?
If you did can you please tell me how to do it.
Also what cobba?
Many Thanks

CellM@n · 07-04-2002, 23:21

hi friend... i have this problem too...

but when i look at the net Monitor at 01 TEST, RX Good, but no TX at all, i have change PA and Ant. switch but still no reslt.

Do i have to change HAGAR????

PLS Help

vule · 07-05-2002, 19:49

Hiya

U have to resolder COBBA, not to reflow it, then calculate MSID, FAID and etc again with eeprom tools.....

Then test it with wintesla for output signal in RF Controls menu

If still failure, change Cobba.....

BR

Vule

Ramiz · 07-06-2002, 09:38

hi all
if ur mobile get 2 signal and then drop down u have to change bf

have fun

gsmsalers · 07-11-2002, 17:29

Hi.
I have question about cobba? Does cobba,ram.flash brought from suplier work or not? It is not usual buy those chips. not like pa,vso etc... Even seller asked why those chips need?Because just this winter we can repair 4 lock closed,faid repair.Where can I find it?
Thanks your attention.

vule · 07-11-2002, 21:18

Try to find it at our chinese friends...

I use original components from Nokia suppliers...Yes i pay 35 Eur for cobba but when i solder it down i am sure that is working...

A couple of weeks ago i bought 50 pcs of cobba chips from china and they all were f*****... Damn i almost killed my supplier because all cobba were in working condition ( simlock calculate, cobba ID, serial/paralell interface was ok just rf part was broken and i spent 2 days fixing working phones with no signal LOL
So i throw away whole line, all 50 pcs ( same with hagar, ccont and especially antenna switches )

Be careful...

BR

Vule

bello · 07-12-2002, 05:27

Hi,
what your price for repair NOKIA 3310 which is COBBA defect?

Thanks.

gsmsalers · 07-12-2002, 09:19

Hi.
From which chinese city those parts are brougtht. For rf,pa element before I bougth from Chinese Peking capital city. But for cobba it doubtfull. Anyone have expierence buying cobba,hagar from china.
Bye.

Hanukkah · 07-12-2002, 11:40

I agree 100% with vule. Best is to replace parts (COBBA, HAGAR, etc.), next is to reball with BGA kit, then reflow is least effective.

I've bought parts from shenzen. Then whole lot of CCONT is not working, so I asked a friend who was travelling back to China to return the lot. He did, and maybe he complained that is why they replaced the lot of CCONT and HAGAR with working ones. I guess you have to make it a point that you will go the extra length and return them dummy parts.

gsmsalers · 07-12-2002, 21:26

Hi>
So it means need to check it in china when buying> Also now your cobba etc bought from china working or not after change?before i never bought cobba,hagar from china. So someone know how much does it cost in china? TELL me by private email>
bye>

vule · 07-12-2002, 22:03

From now on i 'm buying directly from authorized Nokia supplier...Yeah, i pay 35 Eur for cobba, but when i solder it down i'm sure that is working !!!!

And i think that time of cheap service is gone...It's better to charge more and give warranty for repair, instead of listening complaints whole day long....LOL

Think again about time u spending on repairing previously repaired phones......

BR

Vule

07-02-2002, 15:40	#1 (permalink)
microera No Life Poster Join Date: Jun 2001 Location: www.microera.si Posts: 1,535 Member: 4923 Status: Offline Thanks Meter: 74	3310 signal about 5 s then drop When power 3310 I have signal for about 5s then signal disapear! I rehot cobba but at this moment I havn't signal anymore! ( I think that PA is in fault? At this moment maybe cobba too? thanks for answers!

07-03-2002, 19:42	#5 (permalink)
druid Junior Member Join Date: Jul 2002 Posts: 3 Member: 13476 Status: Offline Thanks Meter: 0	3310 signal Hi I have the same problem did you fix it? If you did can you please tell me how to do it. Also what cobba? Many Thanks

07-11-2002, 17:29	#9 (permalink)
gsmsalers No Life Poster Join Date: Apr 2002 Location: Flash Age: 44 Posts: 1,943 Member: 11208 Status: Offline Thanks Meter: 11	Cobba buying? Hi. I have question about cobba? Does cobba,ram.flash brought from suplier work or not? It is not usual buy those chips. not like pa,vso etc... Even seller asked why those chips need?Because just this winter we can repair 4 lock closed,faid repair.Where can I find it? Thanks your attention.

07-12-2002, 05:27	#11 (permalink)
bello Freak Poster Join Date: Apr 2002 Location: BiH, Srebrenik Age: 53 Posts: 205 Member: 10960 Status: Offline Thanks Meter: 5	@vule Hi, what your price for repair NOKIA 3310 which is COBBA defect? Thanks.

07-12-2002, 09:19	#12 (permalink)
gsmsalers No Life Poster Join Date: Apr 2002 Location: Flash Age: 44 Posts: 1,943 Member: 11208 Status: Offline Thanks Meter: 11	FROM which city Hi. From which chinese city those parts are brougtht. For rf,pa element before I bougth from Chinese Peking capital city. But for cobba it doubtfull. Anyone have expierence buying cobba,hagar from china. Bye.

07-02-2002, 21:38	#2 (permalink)
Hanukkah No Life Poster Join Date: Jul 2001 Location: RP Age: 48 Posts: 890 Member: 5246 Status: Offline Thanks Meter: 9	If you have full signal then drop try PA and Ant Switch. But I think you will have to reflow your COBBA first to get network rx.

07-02-2002, 22:06	#3 (permalink)
F C No Life Poster Join Date: Sep 2001 Location: London, UK Posts: 2,294 Member: 6486 Status: Offline Sonork: 100.79846 Thanks Meter: 350	100% agree with HANUKKAH-- check vco also-- best regards gohar

07-03-2002, 05:14	#4 (permalink)
bello Freak Poster Join Date: Apr 2002 Location: BiH, Srebrenik Age: 53 Posts: 205 Member: 10960 Status: Offline Thanks Meter: 5	Change COBBA, not reflow. Regards.

07-04-2002, 23:21	#6 (permalink)
CellM@n No Life Poster Join Date: Feb 2001 Location: Planet EARTH Age: 50 Posts: 1,209 Member: 3194 Status: Offline Thanks Meter: 41	hi friend... i have this problem too... but when i look at the net Monitor at 01 TEST, RX Good, but no TX at all, i have change PA and Ant. switch but still no reslt. Do i have to change HAGAR???? PLS Help

07-05-2002, 19:49	#7 (permalink)
vule No Life Poster Join Date: Apr 2002 Location: Radiometer Medical ApSBrønshøj Age: 51 Posts: 721 Member: 10854 Status: Offline Sonork: 1578988 Thanks Meter: 3	Hiya U have to resolder COBBA, not to reflow it, then calculate MSID, FAID and etc again with eeprom tools..... Then test it with wintesla for output signal in RF Controls menu If still failure, change Cobba..... BR Vule

07-06-2002, 09:38	#8 (permalink)
Ramiz No Life Poster Join Date: Dec 1999 Age: 44 Posts: 837 Member: 790 Status: Offline Sonork: 100.82414 Thanks Meter: 99	hi all if ur mobile get 2 signal and then drop down u have to change bf have fun

07-11-2002, 21:18	#10 (permalink)
vule No Life Poster Join Date: Apr 2002 Location: Radiometer Medical ApSBrønshøj Age: 51 Posts: 721 Member: 10854 Status: Offline Sonork: 1578988 Thanks Meter: 3	Try to find it at our chinese friends... I use original components from Nokia suppliers...Yes i pay 35 Eur for cobba but when i solder it down i am sure that is working... A couple of weeks ago i bought 50 pcs of cobba chips from china and they all were f*****... Damn i almost killed my supplier because all cobba were in working condition ( simlock calculate, cobba ID, serial/paralell interface was ok just rf part was broken and i spent 2 days fixing working phones with no signal LOL So i throw away whole line, all 50 pcs ( same with hagar, ccont and especially antenna switches ) Be careful... BR Vule

07-12-2002, 11:40	#13 (permalink)
Hanukkah No Life Poster Join Date: Jul 2001 Location: RP Age: 48 Posts: 890 Member: 5246 Status: Offline Thanks Meter: 9	I agree 100% with vule. Best is to replace parts (COBBA, HAGAR, etc.), next is to reball with BGA kit, then reflow is least effective. I've bought parts from shenzen. Then whole lot of CCONT is not working, so I asked a friend who was travelling back to China to return the lot. He did, and maybe he complained that is why they replaced the lot of CCONT and HAGAR with working ones. I guess you have to make it a point that you will go the extra length and return them dummy parts. Last edited by Hanukkah; 07-13-2002 at 06:40.

07-12-2002, 21:26	#14 (permalink)
gsmsalers No Life Poster Join Date: Apr 2002 Location: Flash Age: 44 Posts: 1,943 Member: 11208 Status: Offline Thanks Meter: 11	Hi,need info? Hi> So it means need to check it in china when buying> Also now your cobba etc bought from china working or not after change?before i never bought cobba,hagar from china. So someone know how much does it cost in china? TELL me by private email> bye>

07-12-2002, 22:03	#15 (permalink)
vule No Life Poster Join Date: Apr 2002 Location: Radiometer Medical ApSBrønshøj Age: 51 Posts: 721 Member: 10854 Status: Offline Sonork: 1578988 Thanks Meter: 3	From now on i 'm buying directly from authorized Nokia supplier...Yeah, i pay 35 Eur for cobba, but when i solder it down i'm sure that is working !!!! And i think that time of cheap service is gone...It's better to charge more and give warranty for repair, instead of listening complaints whole day long....LOL Think again about time u spending on repairing previously repaired phones...... BR Vule

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