4S works without SIM but turns off with SIM - GSM-Forum

hex180 · 01-07-2013, 20:14

Hope this makes sense. I have a 4S that appears to work fully when no SIM inserted (obviously no calls/text at this point).

If I put in SIM it gets signal ok and works as normal for a period then randomly turns off - usually within 10mins sometimes much quicker.

Take the SIM out and it can run and run - tested up to 2hrs.

I had previously repaired the battery connector and it was seen to work for weeks.

Thanks to all that can help

jegerjon · 01-07-2013, 23:17

Sounds like something is overheating because of a short. Assemble your phone without the frame and look for hot components.

hex180 · 01-08-2013, 20:59

Thanks jegerjon, I was thinking along same lines.

Strangely, I can't recreate the fault at the moment fully assembled!

The SIM in fault suggests something to do with the RF side but no hot spots yet.

Any one had similar experience?

Rise · 01-08-2013, 21:39

problem in iphone middle body
reassemble iphone and check again
due to some shortage with middle body this problem can creat.
if same problem then remove volume cable and then check if again same then remove another flat cable, check 1 by 1 , u will get result.

hex180 · 01-17-2013, 22:38

Thanks for suggestions.
Think it was bad solder joint at the battery connector. Resoldered now and so far so good.
Fingers crossed!!

01-07-2013, 20:14	#1 (permalink)
hex180 Major Poster Join Date: Oct 2011 Posts: 43 Member: 1677699 Status: Offline Thanks: 4 Thanked 1 Time in 1 Post	4S works without SIM but turns off with SIM Hope this makes sense. I have a 4S that appears to work fully when no SIM inserted (obviously no calls/text at this point). If I put in SIM it gets signal ok and works as normal for a period then randomly turns off - usually within 10mins sometimes much quicker. Take the SIM out and it can run and run - tested up to 2hrs. I had previously repaired the battery connector and it was seen to work for weeks. Thanks to all that can help

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01-07-2013, 23:17	#2 (permalink)
jegerjon Insane Poster Join Date: Nov 2012 Location: Denmark Posts: 85 Member: 1839857 Status: Offline Thanks: 19 Thanked 25 Times in 18 Posts	Sounds like something is overheating because of a short. Assemble your phone without the frame and look for hot components.

01-08-2013, 20:59	#3 (permalink)
hex180 Major Poster Join Date: Oct 2011 Posts: 43 Member: 1677699 Status: Offline Thanks: 4 Thanked 1 Time in 1 Post	Thanks jegerjon, I was thinking along same lines. Strangely, I can't recreate the fault at the moment fully assembled! The SIM in fault suggests something to do with the RF side but no hot spots yet. Any one had similar experience?

01-08-2013, 21:39	#4 (permalink)
Rise No Life Poster Join Date: Sep 2003 Location: Abu Dhabi, Islamabad Posts: 1,297 Member: 39022 Status: Offline Sonork: 1575244 Thanks: 21 Thanked 83 Times in 47 Posts	problem in iphone middle body reassemble iphone and check again due to some shortage with middle body this problem can creat. if same problem then remove volume cable and then check if again same then remove another flat cable, check 1 by 1 , u will get result.

01-17-2013, 22:38	#5 (permalink)
hex180 Major Poster Join Date: Oct 2011 Posts: 43 Member: 1677699 Status: Offline Thanks: 4 Thanked 1 Time in 1 Post	Thanks for suggestions. Think it was bad solder joint at the battery connector. Resoldered now and so far so good. Fingers crossed!!