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I picked up a cheap 3g 8gb some time ago that wouldn't detect sims cards, opening it up quickly revealed the reason - someone must have used a Turbo sim...
02-15-2010, 02:41 AM #1Replace 3g iPhone Sim Car Junctor/Reader
I picked up a cheap 3g 8gb some time ago that wouldn't detect sims cards, opening it up quickly revealed the reason - someone must have used a Turbo sim type adaptor previously and got it stuck - all the pins on the sim reader were wrecked - misplaced and one was actually flopping about loose inside the phone. Since then my lad has been using it as an ipod touch with camera, but at the weekend I picked up another 8gb 3g - this time it looks like it is IMEI blocked - it gets the carrier but no signal on o2, on Virgin it gets carrier and full signal but all calls fail. So I figured this could be the 3g ipod touch and I'd replace the sim junctor on the other one and get it running fully again....
So I desoldered the old Sim Junctor, positioned in my new one (see 3g Sim Junctorand very carefully soldered it into place - most solder remained so I only needed a touch extra to keep it in place. Rebuilt the whole iphone, booted it up - it worked which was good news - but inserting the sim still came up with "No Sim" Dissembled the whole thing again, went back over the solder points and made sure they were all good, redid a couple and built it up again. Still no joy - it boots up fine, but does not detect a sim when inserted.
My question (finally) is - has anyone successfully replaced a sim junctor before? Am I missing something important - I figured it would simply be remove the six old mounting points and then rejoning in the six points on the new one. Or do I need to have yet another go at making sure all six connections are fully soldered in - although each connector literally sat on the old solder anyway - so my topping off would only really have been to seal it into place.
02-15-2010, 05:23 PM #2
02-16-2010, 02:09 AM #3
Thanks for the reply, so in theory when whoever had it yanked the turbo sim out taking the sim junctors with it - shorting them together and no doubt against the metal sim retainer housing - this could have damaged the sim card reading part of the Mobo.
I prefer this theory to the thought I am rubbish at soldering and botched the install of the new junctor - I think I'll let sleeping dogs lie it still works as a iPod touch with camera it can stay like that.
05-19-2010, 07:05 PM #4
How to fix #3 CONNECTORS: