Iphone 4 No imei Hello friends, i need help to solve this issue, i know here exists many people with good potential to repair this phones (Mr. Wites, etc...etc), i am having problems with an iphone 4, when i try to restore itunes give me error (-1) and after replace battery the same problem. I think there is a problem with voltage that needs the baseband ic, maybe somebody can tell me where to start. thanks !! |
i donīt know if wifi is dead too because the iphone is not activated, after restore with custom and ireb, the phone turn on but is needed the activation and the phone does not recognize any sim card. |
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1 Attachment(s) Check baseband volts, hope this helps a bit. |
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i don't have voltage in one of the l8 l6 l3 but i do get on the rest |
L6 and L8 connects to battery so you should get battery voltage on both sides. If only on 1 side, replace it. Ohm out the coil and make sure they beep. |
i got bit different Problem on iPhone 4. Restore with iTunes works fine, no Error, than Phone boot up to activation Screen and Shows "searching" without Sim Card. Wifi, BT, Modem Firmware are okay, bit time before it works normaly after restore and i couldt activate it in usual way, Network came and after view Minutes Network gone. At that point i looked up into general Info an everything seems to be okay, but if i type *#06# in Phone there is nothing. (nothing happend, no popup window) At the moment Phone stay in activation Mode without Imei. But in General Info there everything present. (i activate by jailbreak) Cant activate with iTunes, itunes say there is noch simcard installed. Anyone got any idea? I search on pcb for broken lines by microscope but i couldnt find anything, pcb are in very good optical condition. |
No one says how the problems started? ? |
my Problem started with fallin on the floor, sorry. On L3 i have on both sides 1,35 volts on L2 i have on both sides 1,83 volts. Volts on FL6 nd FL8 have 4,22 volts on every point. |
its baseband problem |
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Thx for this help too. In Facts this ist other Phone, then taht in the other thread. This Phone here i will wait, because it is not mine, at the other i will try to reball Chip. Thx |
Look under microscope to see if the glue around chip is cracked anywhere. If you find cracks, most likely solder cracked too and will need reballing. |
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