Is it possible?

[SirStrumalot]

Hey guys,

I was wondering whether it was possible to downgrade an iphone 3G from 4.3.1 to 3.1.3? This is mostly to get rid of the sluggish performance.

I did google it but a lot of info seemed to be from a while ago (which made me wonder whether anythings changed). I know it used to be possible usong recboot?

Any help appreciated!

 

[labman]

this will work for firmware btw baseband can't be down graded just so you know.

http://lifehacker.com/#!5572003/how-to-downgrade-your-iphone-3g-from-ios-4-to-ios-313

 

[Crystal-RX]

Hey guys,

I was wondering whether it was possible to downgrade an iphone 3G from 4.3.1 to 3.1.3? This is mostly to get rid of the sluggish performance.

I did google it but a lot of info seemed to be from a while ago (which made me wonder whether anythings changed). I know it used to be possible usong recboot?

Any help appreciated!

Just to get clarification;

for 3G, the latest firmware is 4.2.1. How did you manage to put 4.3.1 on to the 3G

Having said that, if your phone has 4.3.1 IOS, then your Iphone is 3GS and not 3G. If you want to downgrade 3GS firmware, then you need to have shsh blobs save.

For 3G, you do not need shsh blob save for downgrading firmware.

 

[SirStrumalot]

Just to get clarification;

for 3G, the latest firmware is 4.2.1. How did you manage to put 4.3.1 on to the 3G

Having said that, if your phone has 4.3.1 IOS, then your Iphone is 3GS and not 3G. If you want to downgrade 3GS firmware, then you need to have shsh blobs save.

For 3G, you do not need shsh blob save for downgrading firmware.

Oops sorry that was a typo. Thanks labman I'll try that!

 

[labman]

keep in mind what Crystal-RX said if it's a 3gs the link I gave will not work!

 

[SirStrumalot]

keep in mind what Crystal-RX said if it's a 3gs the link I gave will not work!

It's a 3G on 4.2.1... original post was a typo. Thanks again!

 

[labman]

It's a 3G on 4.2.1... original post was a typo. Thanks again!

best bet for you is 3.1.3 as you originally asked. use the link I gave you don't need TU. but you Baseband will not downgrade. Saw in another post from Crystal-RX there is a rare number of 3G Iphone which has bootloader 05.08 can be downgrade the baseband f0recast or TU will help you identify if you are one of the lucky ones. Crystal-RX thanks for the education not up on all my 3G info lol. Crystal-RX I also copied part of you post from the other thread. Want to give proper credit.