Upgrading 3g to 4.1 no blobs

[xand49]

Hello.

recently had my 3g replaced at an apple store, was given a new one running
3.1.1(7E18)
bb 5.12.01

I would like to upgrade this to 4.1 and jb, however it has no blobs, whats the best way of going about this?

[Simon]

You can go to 4.2.1 with a custom firmware made with pwnage tool if you want pt preserve baseband so that you can unlock. If you dont need to unlock then you can just update to 4.2.1 then use redsnow 0.9.6b6 to jailbreak.

[xand49]

isnt the 4.2.1 redsnow jb tethered?

[Simon]

Not for a 3G.

[xand49]

so, all i have to do is download redsnow 0.9.6b6 find a copy of 4.2.1 and run the program, job done?

[Simon]

Do you need to unlock?

[xand49]

nah, my carrier is fine,

one side note my old 3g had a backup at ofw 4.1 any way to restore that in the process?

[Simon]

All you have to do is restore to 4.2.1. Then you can restore your backup from your old 4.1 backup. Then you can jailbreak with redsnow 0.9.6b6. just select the install cydia option.

[xand49]

nice, thanks. do you have a link to the 4.2.1 custom firmware?

[Simon]

You dont need a custom firmware if you dont need to unlock. Just use a regular 4.2.1 firmware.

[xand49]

would that not end up with me having to go to the ipad bb? or have i been reading things wrong?

[Simon]

I thought you said you dont need to unlock? Are you not on a official carrier?

[xand49]

i don't need to unlock but would like to avoid the ipad bb due to its gps problems and lack of downgrade ability

[Simon]

If you don't need to unlock then you don't have to worry with the iPad baseband thing. That is just for unlockers. Just restore to regular 4.2.1 and then use redsnow to install cydia.

[xand49]

thanks for the replys!

is there any benefit to not upgrading my bb while doing this or is it kinda pointless since i have no blobs anyway?

[Simon]

The benefit would be if you plan to unlock in the future then not upgrading your baseband would help you. If you go to regular 4.2.1 that baseband cannot be unlocked meaning if you did want to unlock then you would have to do the ipad baseband thing. If you never plan to unlock though it wont affect you at all.

[xand49]

excellent, thanks alot for your assistance! time to go do some jb'ing!

[Simon]

Good luck