Can I use another iphones shsh file to downgrade my 3g to 3.1.2

  • Thread starter Thread starter swapniladsure
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swapniladsure

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hi friends
please help me that can i use another iphones shsh file to downgrade my iphone 3g to 3.1.2
if yes than can u please give me download link of that file and steps to flash dat phone
or if no than please tell me another way to downgrade that iphone from 3.1.3 to 3.1.2
 
If that would be possible I think that someone might`v thought of it and make a tool to get the SHSH 3.1.2 for any ECID, that way making downgrading any 3GS to 3.1.3 alot more easier.
 
There are many things to take inconsideration for SHSH:

IMEI - different for every iPhone
Model no:
FCC ID:
IC ID:
Wireless & Bluetooth Mac Address:
Modem Firmware:
Baseband:
and the most important thing: Jailbreak

So making such a tool would be complicated as hell. I`m sure many have thought of it and maybe some have tried to without any luck.
 
because my iphone shows "no service" after done all process of jailbreak and unlock with All process
some times it capture network but most of the time it searches for network and lastly shows me "NO SERVICE"
thats why i wana downgrade my iphone again to 3.1.2
beause it work fine before upgrade to 3.1.3
 
Search in this Forum there is a method to solve this problem,

i dnt have any link otherwise i give u but i have read somewhere abt this problem search u will find it,

Regards
 
For iPhone 3G downgrade you don't need shsh blobs. It's only needed for 3GS.

br
d3m0n
 
if ur baseband on ur iphone ok then there is no problem for ur iphone 3g coz i have i can upgrade and downgrade from ios 4, cause to slow for iphone 3g....
 
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