iphone4 no network after downgrade to 5.01 - GSM-Forum

Clinika · 04-16-2012, 18:11

hi
i received iphone4 factory unlocked for to downgrade to 5.01 for untethered jailbreak
i used ifaith to make a custom firmware 5.01 and inject it to phone
now phone works perfectly but no network
when i upgrade it again to 5.1 : network ok 100%,
but when i downgrade to 5.01 : no network
any help is appreciated

modem verison:04.12.01

Magicalboy · 04-16-2012, 18:33

Quote:

Originally Posted by Clinka

hi
i received iphone4 factory unlocked for to downgrade to 5.01 for untethered jailbreak
i used ifaith to make a custom firmware 5.01 and inject it to phone
now phone works perfectly but no network
when i upgrade it again to 5.1 : network ok 100%,
but when i downgrade to 5.01 : no network
any help is appreciated

modem verison:04.12.01

try restore with orginal firmware

Clinika · 04-16-2012, 18:47

sir u can't flash 5.01 stock (original) firmware because apple sign only 5.1

ribbentrop · 04-16-2012, 18:52

Hm ... maybe ur 4.12 BB is incompatible with 5.01 .
Did you try reset all setings after flasing to 5.01 ?

Magicalboy · 04-27-2012, 07:18

Quote:

Originally Posted by Clinka

hi
i received iphone4 factory unlocked for to downgrade to 5.01 for untethered jailbreak
i used ifaith to make a custom firmware 5.01 and inject it to phone
now phone works perfectly but no network
when i upgrade it again to 5.1 : network ok 100%,
but when i downgrade to 5.01 : no network
any help is appreciated

modem verison:04.12.01

try restore with firmware custom(by IFaith 1.4.2)

04-16-2012, 18:11	#1 (permalink)
Clinika Freak Poster Join Date: May 2004 Age: 44 Posts: 232 Member: 66730 Status: Offline Thanks Meter: 24	iphone4 no network after downgrade to 5.01 hi i received iphone4 factory unlocked for to downgrade to 5.01 for untethered jailbreak i used ifaith to make a custom firmware 5.01 and inject it to phone now phone works perfectly but no network when i upgrade it again to 5.1 : network ok 100%, but when i downgrade to 5.01 : no network any help is appreciated modem verison:04.12.01

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04-16-2012, 18:47	#3 (permalink)
Clinika Freak Poster Join Date: May 2004 Age: 44 Posts: 232 Member: 66730 Status: Offline Thanks Meter: 24	sir u can't flash 5.01 stock (original) firmware because apple sign only 5.1

04-16-2012, 18:52	#4 (permalink)
ribbentrop No Life Poster Join Date: Sep 2003 Location: Ukraine Age: 51 Posts: 4,614 Member: 40400 Status: Offline Thanks Meter: 1,250	Hm ... maybe ur 4.12 BB is incompatible with 5.01 . Did you try reset all setings after flasing to 5.01 ?