T600 no network - GSM-Forum

GsMen · 01-20-2004, 21:00

Any solution to t600's that have no network at all?

sed_alex · 01-20-2004, 21:35

Very easy solution:
Warm Up CPU, RF3108, RF-CPU, Power IC with flux - and phone alive again.

GSM Coolhawk · 01-20-2004, 23:18

@GsMen

I would suggest that you start with CPU only. All T66 and T600 have this common problem, and for the ones I have "repaired"

It's enough to reflow or reball the CPU.

Regards

pipasbe · 01-21-2004, 23:25

anybody have a shematic with these phone i have one but no description (http://www.inside-gsm.com/Ericsson/T...ption_t66.html)
where is the cpu

GSM Coolhawk · 01-22-2004, 00:44

@pipasbe

CPU is Nr. 22 on Picture

Regards

vikashk · 08-22-2004, 07:29

Quote:

Originally Posted by sed_alex

Very easy solution:
Warm Up CPU, RF3108, RF-CPU, Power IC with flux - and phone alive again.

Hi, I have the same problem with my T600. Im new to repairing mobiles, can you please explain what you mean by warming up the CPU......with flux?

Is it be physically applying heat?

hoangminhtam · 08-22-2004, 11:21

yeah ! mostly i repair this by reflowing CPU
10000%

vikashk · 08-22-2004, 13:56

reflowing CPU? sorry I dont understand this terminology. I dont have any fancy equipment for repair either. Just screw driver and a soldering iron.

So far I have used a hair dryer to heat the system board but no luck, still intermittenly no network.

The hair dryer got the CPU to get quite hot but I wasnt sure how hot was safe so didnt go too far.

Im sure that its something wrong on the system board cos Ive got a T66 and ive tried the antenna and the connecter from it but didnt help.

I would appreciate any advice. Thanks.

akshay · 08-22-2004, 15:50

@GSM Coolhawk

100000000% solution cause i repair over 50 phones . yes

akki

Gsmhq · 09-09-2004, 14:54

You can use one good soldering pen and a big flatwormer and heat up the cpu for about 1 min after that working good

but hey don't heat for long then phone Dead

Gsmhq

Sweden Mobile · 04-30-2005, 13:20

Reflow the CPU is the best solution!

I've make i´t with 2pcs T600

Sweden Mobile

01-20-2004, 21:00	#1 (permalink)
GsMen No Life Poster Join Date: Sep 2000 Location: Netherlands Posts: 857 Member: 2100 Status: Offline Thanks Meter: 40	T600 no network Any solution to t600's that have no network at all?

04-30-2005, 13:20	#11 (permalink)
Sweden Mobile Freak Poster Join Date: Nov 2004 Age: 41 Posts: 205 Member: 90734 Status: Offline Thanks Meter: 3	Reflow Reflow the CPU is the best solution! I've make i´t with 2pcs T600 Sweden Mobile

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01-20-2004, 21:35	#2 (permalink)
sed_alex Freak Poster Join Date: Dec 2001 Location: Russia Posts: 113 Member: 7928 Status: Offline Thanks Meter: 0	Very easy solution: Warm Up CPU, RF3108, RF-CPU, Power IC with flux - and phone alive again.

01-20-2004, 23:18	#3 (permalink)
GSM Coolhawk No Life Poster Join Date: Dec 2001 Location: United Arab Emirates, Dubai Age: 52 Posts: 1,269 Member: 7751 Status: Offline Thanks Meter: 74	@GsMen I would suggest that you start with CPU only. All T66 and T600 have this common problem, and for the ones I have "repaired" It's enough to reflow or reball the CPU. Regards

01-21-2004, 23:25	#4 (permalink)
pipasbe Freak Poster Join Date: Oct 2001 Posts: 304 Member: 7011 Status: Offline Thanks Meter: 0	anybody have a shematic with these phone i have one but no description (http://www.inside-gsm.com/Ericsson/T...ption_t66.html) where is the cpu

01-22-2004, 00:44	#5 (permalink)
GSM Coolhawk No Life Poster Join Date: Dec 2001 Location: United Arab Emirates, Dubai Age: 52 Posts: 1,269 Member: 7751 Status: Offline Thanks Meter: 74	@pipasbe CPU is Nr. 22 on Picture Regards

08-22-2004, 11:21	#7 (permalink)
hoangminhtam Freak Poster Join Date: Jun 2003 Location: somewhere Age: 53 Posts: 308 Member: 32182 Status: Offline Thanks Meter: 2	yeah ! mostly i repair this by reflowing CPU 10000%

08-22-2004, 13:56	#8 (permalink)
vikashk Junior Member Join Date: Aug 2004 Age: 47 Posts: 2 Member: 78719 Status: Offline Thanks Meter: 0	reflowing CPU? sorry I dont understand this terminology. I dont have any fancy equipment for repair either. Just screw driver and a soldering iron. So far I have used a hair dryer to heat the system board but no luck, still intermittenly no network. The hair dryer got the CPU to get quite hot but I wasnt sure how hot was safe so didnt go too far. Im sure that its something wrong on the system board cos Ive got a T66 and ive tried the antenna and the connecter from it but didnt help. I would appreciate any advice. Thanks.

08-22-2004, 15:50	#9 (permalink)
akshay No Life Poster Join Date: Nov 2002 Location: Everywere Age: 46 Posts: 679 Member: 18057 Status: Offline Thanks Meter: 64	@GSM Coolhawk 100000000% solution cause i repair over 50 phones . yes akki

09-09-2004, 14:54	#10 (permalink)
Gsmhq No Life Poster Join Date: Dec 1999 Location: Sweden Age: 45 Posts: 768 Member: 739 Status: Offline Thanks Meter: 0	You can use one good soldering pen and a big flatwormer and heat up the cpu for about 1 min after that working good but hey don't heat for long then phone Dead Gsmhq