downgrade baseband for unlock

[malikusmanrasheed]

hi all,
i upgraded my iphone to 4.1 baseband 5.14.02 .
now i cant unlock it using ultrasn0w.
is there a methood to downgrade the baseband back to 5.11.x
the one that i had earlier to unlock it?

[Ksana-roxana]

I did the same mistake, what to do....
I

[l-awstraljan]

U cant downgrade baseband. And prolly be a while (or never) until ultrasn0w supports it. Sry mate

[vigilantez]

only on iphone 3G with bootloader 5.8 (5.08) you can downgrade

i also made a mistake trying to jailbreak and put in the original firmware instead of the custom but lucky me mine is 5.8 and i downgraded a few days ago