how to restore iphone 4.2.1 to 5.1.1 - GSM-Forum

fraazimtiaz · 07-22-2012, 19:42

hi guyz how to restore iphone 4 4.2.1 to 5.1.1 plz tell me the methods and how gevey work on it thax

fun · 07-22-2012, 20:05

Crate custom firmware with sn0wbreeze-v2.9.6
Enter Pwned DFU mode with latest Redsnow
Restore with iTunes.

fraazimtiaz · 07-22-2012, 20:12

thanks bro gevey works on 5.1.1

said4 · 07-23-2012, 16:20

Dear
Can I upgrade ver 4.2.1 to 5.1.1 with iTunes?
Have to unlock
3Gs
16Gb software ver 4.2.1
Numero serie 87831PX21R4
Modem 05.15.04
Thanks in advance

Gecko_UK · 07-23-2012, 16:34

Quote:

Can I upgrade ver 4.2.1 to 5.1.1 with iTunes?

Of course you can, since it's the current latest version

said4 · 07-23-2012, 17:15

Quote:

Originally Posted by Gecko_UK

Of course you can, since it's the current latest version

why file not compatible error with itunes

said4 · 07-23-2012, 19:04

Quote:

Originally Posted by said4

why file not compatible error with itunes

Sorry for trouble
it's not 3Gs but 3G
so plesae guide me
Thanks

Gecko_UK · 07-23-2012, 19:14

Quote:

Sorry for trouble
it's not 3Gs but 3G
so plesae guide me
Thanks

Latest official firmware for 3G is 4.2.1, so you can't update further than that. But you can use whited00r CFW to gain some iOS 5.x features unofficially

said4 · 07-24-2012, 09:15

Thanks for help
with ver 4.2.1 can I upgrad bb 6.15.00 and unlock it
here is full info
3G
ver 4.2.1 (8C148)
Model MB500NF3G
S.N 87831PX21R4
modem 05.15.04
IMEI 01 171200 0222 650
Need help
Thanks

07-22-2012, 19:42	#1 (permalink)
fraazimtiaz Insane Poster Join Date: May 2010 Location: London Posts: 67 Member: 1313438 Status: Offline Sonork: 100.1605406 Thanks Meter: 2	how to restore iphone 4.2.1 to 5.1.1 hi guyz how to restore iphone 4 4.2.1 to 5.1.1 plz tell me the methods and how gevey work on it thax

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07-22-2012, 20:05	#2 (permalink)
fun No Life Poster Join Date: Feb 2005 Location: Ireland Posts: 1,396 Member: 117145 Status: Offline Sonork: 1617520 Thanks Meter: 382	Crate custom firmware with sn0wbreeze-v2.9.6 Enter Pwned DFU mode with latest Redsnow Restore with iTunes.

07-22-2012, 20:12	#3 (permalink)
fraazimtiaz Insane Poster Join Date: May 2010 Location: London Posts: 67 Member: 1313438 Status: Offline Sonork: 100.1605406 Thanks Meter: 2	thanks bro gevey works on 5.1.1

07-23-2012, 16:20	#4 (permalink)
said4 No Life Poster Join Date: Feb 2006 Location: Madagascar Posts: 2,848 Member: 233142 Status: Offline Sonork: 100.1595099 Thanks Meter: 527	Dear Can I upgrade ver 4.2.1 to 5.1.1 with iTunes? Have to unlock 3Gs 16Gb software ver 4.2.1 Numero serie 87831PX21R4 Modem 05.15.04 Thanks in advance

07-24-2012, 09:15	#9 (permalink)
said4 No Life Poster Join Date: Feb 2006 Location: Madagascar Posts: 2,848 Member: 233142 Status: Offline Sonork: 100.1595099 Thanks Meter: 527	Thanks for help with ver 4.2.1 can I upgrad bb 6.15.00 and unlock it here is full info 3G ver 4.2.1 (8C148) Model MB500NF3G S.N 87831PX21R4 modem 05.15.04 IMEI 01 171200 0222 650 Need help Thanks