Help with downgrading 4.3.4 to 4.3.3 weird baseband problem

[marco208]

Hi!

I got an iphone 4 with 4.3.4.. i downgraded to 4.3.3 now i have no service...

its not the one-signalbar-issue so its not fixable using ultra snow

Things to include:
*restore to 4.3.4 is possible through official way
*downgrade to 4.3.3 is possible trough TinyUmbrella/Cydia
-*Downgrade is only possible with baseband preservation
-*with baseband included it will give 1013 at the end (recovery fix will not work)
*on boot the iphone has 1 signal bar after a few seconds "no service" appears
*4.3.4 works fine except for tethered-boot

Anyone knows a solution?


Gr,
Marco208

 

[awadeee]

Hi!

I got an iphone 4 with 4.3.4.. i downgraded to 4.3.3 now i have no service...

its not the one-signalbar-issue so its not fixable using ultra snow

Things to include:
*restore to 4.3.4 is possible through official way
*downgrade to 4.3.3 is possible trough TinyUmbrella/Cydia
-*Downgrade is only possible with baseband preservation
-*with baseband included it will give 1013 at the end (recovery fix will not work)
*on boot the iphone has 1 signal bar after a few seconds "no service" appears
*4.3.4 works fine except for tethered-boot

Anyone knows a solution?


Gr,
Marco208

I wouldn't try downgrading without SHSH saved. When you got your iPhone 4, was it already on 4.3.4? Or were you on 4.3.3 jailbroken?