iPhone 4

Fourth generation iPhone. Repair is straightforward, but the front glass and LCD must be replaced as a unit. GSM / 8, 16, or 32 GB capacity / Model A1332 / Black and White.

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What is error -1

i recently got my phone changed to orange in colour both front and back.. getting it back i had to restore it. connected it to iTunes and attempted the restore but failed. once the loading bar under the apple icon on the iPhone was full while restoring, it came up as unable to restore. unknown error (-1). does anybody know how i can fix this and how it happened?

Answered! View the answer I have this problem too

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I've tried but it still wont restore?

by chantee hunt

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-1 Error of Hardware failure . it actually comes when Baseband (IMEI) of the IPhone corrupted . you have no option rather than replacing the iphone or Change the logic board inside. if you are using the mac then connect the phone in recovery mode and go to system profiler and then go to usb then select the iphone .this will show the serial number there . if the serial number show ffffffffffffffff like this then change the phone . otherwise we can try to recover the iphone .

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where do i find system profiler? also, is changing the logic board expensive?

by chantee hunt

yes it cost approx near to phone itself. so buy the new phone or visit the apple service centre to replace it . it will cost approx 200$ . if your are using mac then press the shift+command +u. then you see the utilites folder, open the system information . choose the usb inside then iphone . after selecting you will see the iphone information

by SIMRAN

Can I simply buy the bare motherboard and transfer over the old processor and all that good stuff? Would that be sufficient to fix the issue?

by jhmorehead

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try restoring it in dfu mode

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error code 1 is a modification code, I have only seen this code when a phone has been jailbroke and not for hardware mods, but I have had some bad luck with color conversion kits, they look real good and I have done this to my I 4 but I have installed many that never worked right out of the box, I caution people on this Mod as the parts are generic and a slight risk with your money, Do I think the color Mod caused your problem ? I dont know, but I would reinstall the factory parts and see if that takes care of it.

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Did you fix your error? I have come across the same error and would like to know how you fixed it.

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This is a Hardware problem. when you remove the shield of Bottom side under the Charging jack. This is actually a problem of supply to Baseband Chip or either baseband is faulty. Beside the baseband chip there is a Golden crystal ic who supply the power to baseband . main this could be the reason .

by SIMRAN

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hi I am having same problem with my iphone4 caused due to changing the body colour but I am having the serial no. of my phone please help me to fix it thank you.....

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this is not the reason of issue . during changing the parts you done something wrong to logic board thats why it giving the error during restore. Take the Logic board out from the phone and connect the good battery and charging jack then try to restore the phone without any other thing . check out the error now . if same problem then it is a logic board issue otherwise something other part malfunctions .

by SIMRAN

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@SIMRAN I've this information from my iPhone 5 from the usb

Apple Mobile Device (Recovery Mode):

Product ID: 0x1281

Vendor ID: 0x05ac (Apple Inc.)

Version: 0.00

Serial Number: CPID:8950 CPRV:20 CPFM:03 SCEP:10 BDID:02 ECID:0000032AB4084D29 IBFL:1B SRNM:[C34JW9CHDTWF]

Speed: Up to 480 Mb/sec

Manufacturer: Apple Inc.

Location ID: 0x26210000 / 5

Current Available (mA): 500

Current Required (mA): 500

Extra Operating Current (mA): 400

Is this fixable?

Got error 1 after i tried to update...

thx for your reply

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no real solution for this problem i tried restore in dfu mode it works for some hours but the iphone again corrupted so the soultion is to change your board ....for this reason change your iphone is a better solution

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Error -1 is a baseband issue. The board needs to be repaired. You can buy the new components but it's tricky to do without experience. It's best to replace the baseband power ic first. If not solved then replace the baseband ic. It can be done with a heat gun but you will need a dentist type pick to remove the resin around the ic. There are a few vids on YouTube showing how it's done.

Error 1 is different. I think Mitch rush is right. It only seems to happen to jail broken devices

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chantee hunt will be eternally grateful.

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