S4 insert sim solution here!!!! - GSM-Forum

cerogsm · 09-16-2015, 20:47

Sim Ways here and solution

Munir · 09-17-2015, 06:26

Quote:

Originally Posted by cerogsm

Sim Ways here and solution

I had replace indicated IC but still same. Now phone is reboot any time. its risky too.
all lines are measured with working phone is OK same. IC is also working from no network phone.

Now what to do????

any solution pls............

matin2002s · 10-02-2015, 19:13

Quote:

Originally Posted by cerogsm

sim ways here and solution

best soulation
thank you bro.....

Valdis1977 · 11-12-2015, 20:56

Reheating the ic really helped!

adrigen · 01-05-2016, 00:16

What do you mean by reheating? Hold a soldering iron on to it? Or re solder each of the pin connections?

Can you clarify what needs to be done with the lines marked? Check the continuity of these connections? What did you do if there was a failed connection?

fullkhandas · 01-06-2016, 01:18

Quote:

Originally Posted by adrigen

What do you mean by reheating? Hold a soldering iron on to it? Or re solder each of the pin connections?

Can you clarify what needs to be done with the lines marked? Check the continuity of these connections? What did you do if there was a failed connection?

reheating means flow it with hot air not resolder

adrigen · 01-06-2016, 13:05

It didn't work for me. What's the theory behind heating the ic?

gonemad · 02-05-2016, 16:56

Quote:

Originally Posted by cerogsm

Sim Ways here and solution

Can anyone tell me if this will work on the I337M? Same schematic?

gonemad · 02-07-2016, 12:26

Please delete,,wrong thread

alex369 · 03-09-2016, 15:53

Quote:

Originally Posted by cerogsm

Sim Ways here and solution

After long hours testing various methods, finally this works for me, I remove the IC, clean board surface, refresh solder parts on PCB and IC too, and solder again and phone now works fine, thanks very much.

ykman · 10-20-2016, 16:30

100% work

Thanks a lot

voffk · 11-09-2016, 23:43

Works for me too

Just reheat the IC and phone now works fine, thanks bro.

Stefan Decanski · 01-10-2017, 12:43

work on 5 pcs i9505.thx

batic · 05-05-2017, 21:13

Hello!

I reflow 20794S1A chip and s4 still working! (12 hours already!) The earlier problem was a "no sim card" or reboot the phone. it may work! We will see! Thanks for solution!

lineagelover · 08-16-2017, 16:13

Hey Guys,

got the same problem here with my S4, and I'd like to try to reheat the IC.
Did you use a normal hairdryer for that?
Do the surrounding components have to be protected from the heat? For example with using a nozzle with a small outlet?

Thanks in advance.

11-12-2015, 20:56	#4 (permalink)
Valdis1977 Freak Poster Join Date: Sep 2005 Location: Russia, Kaluga Age: 46 Posts: 126 Member: 179187 Status: Offline Thanks Meter: 32	Reheating the ic really helped!

01-05-2016, 00:16	#5 (permalink)
adrigen Junior Member Join Date: Jan 2016 Posts: 2 Member: 2510799 Status: Offline Thanks Meter: 0	What do you mean by reheating? Hold a soldering iron on to it? Or re solder each of the pin connections? Can you clarify what needs to be done with the lines marked? Check the continuity of these connections? What did you do if there was a failed connection?

01-06-2016, 13:05	#7 (permalink)
adrigen Junior Member Join Date: Jan 2016 Posts: 2 Member: 2510799 Status: Offline Thanks Meter: 0	It didn't work for me. What's the theory behind heating the ic?

02-07-2016, 12:26	#9 (permalink)
gonemad Junior Member Join Date: Feb 2016 Posts: 3 Member: 2526880 Status: Offline Thanks Meter: 1	Please delete,,wrong thread

10-20-2016, 16:30	#11 (permalink)
ykman Junior Member Join Date: Oct 2011 Posts: 7 Member: 1678260 Status: Offline Thanks Meter: 0	100% work Thanks a lot

11-09-2016, 23:43	#12 (permalink)
voffk Junior Member Join Date: Jun 2016 Posts: 3 Member: 2589468 Status: Offline Thanks Meter: 0	Works for me too Just reheat the IC and phone now works fine, thanks bro.

01-10-2017, 12:43	#13 (permalink)
Stefan Decanski Insane Poster Join Date: Aug 2007 Posts: 70 Member: 560813 Status: Offline Thanks Meter: 21	work on 5 pcs i9505.thx

05-05-2017, 21:13	#14 (permalink)
batic Junior Member Join Date: May 2017 Posts: 1 Member: 2713824 Status: Offline Thanks Meter: 1	Hello! I reflow 20794S1A chip and s4 still working! (12 hours already!) The earlier problem was a "no sim card" or reboot the phone. it may work! We will see! Thanks for solution!

08-16-2017, 16:13	#15 (permalink)
lineagelover Junior Member Join Date: Aug 2017 Posts: 1 Member: 2745890 Status: Offline Thanks Meter: 0	Hey Guys, got the same problem here with my S4, and I'd like to try to reheat the IC. Did you use a normal hairdryer for that? Do the surrounding components have to be protected from the heat? For example with using a nozzle with a small outlet? Thanks in advance.