J510FN - signal problem - GSM-Forum

Jane1 · 05-23-2019, 15:33

J510FN has no signal.

IMEI is OK

*#0011# gives
Service mode
No service
Network:Unblock
IMEI Certi:PASS

*#1234# gives a proper CP( cellular processor)

It searches for network but can not connect to.
Do you think it is a transceiver problem or a power amplifier problem? Or
any idea how to repair it?Thanks

gangsta626 · 05-23-2019, 17:03

I got the same problem on j510f

Jane1 · 05-23-2019, 17:04

And did you find a solution? Or what did you try to do to repair the problem?

kammy6000 · 05-31-2019, 00:40

try switch to 2g only

Jane1 · 06-03-2019, 20:30

@kammy6000:Thanks for your reply. But what I will test if I switch to 2G only? Are there different circuits( transceivers or power amplifiers) for 2G and 3G/4G? And by that switching I will test if it is a problem of transceivers /power amplifiers or power controller?

orx · 06-05-2019, 21:21

Quote:

Originally Posted by Jane1

J510FN has no signal.

IMEI is OK

*#0011# gives
Service mode
No service
Network:Unblock
IMEI Certi:PASS

*#1234# gives a proper CP( cellular processor)

It searches for network but can not connect to.
Do you think it is a transceiver problem or a power amplifier problem? Or
any idea how to repair it?Thanks

search for good QCN ,with any box dongle Sam backup original old and try to rewrite the new .

habibboxes · 06-06-2019, 01:02

Quote:

Originally Posted by Jane1

J510FN has no signal.

IMEI is OK

*#0011# gives
Service mode
No service
Network:Unblock
IMEI Certi:PASS

*#1234# gives a proper CP( cellular processor)

It searches for network but can not connect to.
Do you think it is a transceiver problem or a power amplifier problem? Or
any idea how to repair it?Thanks

your problem will be solved by rehot or replace any of {txm1000/pam1000/u1001/u1005/u1103}

05-23-2019, 15:33	#1 (permalink)
Jane1 No Life Poster Join Date: Jan 2010 Posts: 755 Member: 1212133 Status: Offline Thanks Meter: 58	J510FN - signal problem J510FN has no signal. IMEI is OK #0011# gives Service mode No service Network:Unblock IMEI Certi:PASS #1234# gives a proper CP( cellular processor) It searches for network but can not connect to. Do you think it is a transceiver problem or a power amplifier problem? Or any idea how to repair it?Thanks

05-23-2019, 17:03	#2 (permalink)
gangsta626 Insane Poster Join Date: May 2012 Location: Wherever the technology is Posts: 88 Member: 1755285 Status: Offline Thanks Meter: 10	I got the same problem on j510f

05-23-2019, 17:04	#3 (permalink)
Jane1 No Life Poster Join Date: Jan 2010 Posts: 755 Member: 1212133 Status: Offline Thanks Meter: 58	And did you find a solution? Or what did you try to do to repair the problem?

05-31-2019, 00:40	#4 (permalink)
kammy6000 Freak Poster Join Date: Mar 2007 Location: u.k Posts: 327 Member: 467279 Status: Offline Thanks Meter: 42	try switch to 2g only

06-03-2019, 20:30	#5 (permalink)
Jane1 No Life Poster Join Date: Jan 2010 Posts: 755 Member: 1212133 Status: Offline Thanks Meter: 58	@kammy6000:Thanks for your reply. But what I will test if I switch to 2G only? Are there different circuits( transceivers or power amplifiers) for 2G and 3G/4G? And by that switching I will test if it is a problem of transceivers /power amplifiers or power controller?