Chosen Solution
Hello, I recently bought a second-hand iPhone 3GS 32GB Black. It’s without an unlock so all simcards should work. Nevertheless, no simcard works, the iPhone keeps saying ‘No service’ most of the time and occasionally I have one bar. I tried different simcards. Didn’t work. I tried another iPhone 3GS with the same sim on the same locations and this one has perfect service. I tried updating to the newest (4.3.5) firmware. Didn’t work. I tried a full reset. Didn’t work. I tried resetting the network configurations. Didn’t work. Could you guys please help me? I’ve been searching the internet for hours and hours but no solution yet.
when this happens it’s either the sim reader is the problem..ie it doesn’t recognise the chip on the sims..try blowing gently into the simslot or opening the phone using any guide to the right under the photo (turn phone off first or you risk damaging the backlight) try cleaning the slot with a qtip to remove dust and grease, check that the gold pins are all there and not broken or flattened.if they are too flat then gently lift them up to about 45degrees. You may find that you have the sim recognised, 1 bar of signal but if you try to call on the phone or you ring the phone no connection/hangs up. this may be that the phone has been reported lost or stolen to the network provider, the owner made an insurance claim, in either case the phone imei will have been blocked and you own an ipod… you can not get an imei unblocked unless you are the original owner who made the claim. to check the imei try the network or source like www.checkmend.com or www.internationalnumberingplan.com you may have to pay a fee but it’ll be worth it…the check takes minutes/done online. if it is stolen try and get a refund. ps just because it has been “unlocked” doesn’t mean it isn’t blocked..
can any 1 help i have a 3g phone which is unlocked through jailbreak but it only only recognises virgin sim and that comes up with signal but doesn,t make a call, also 02 and 0range is read by the phone by activating airplan mode on then off but that has no signal atall
