iPhone 4: No 3G (mobile) Internet after Jailbreak with greenpoison

[DaRealElvis]

Hi,

I successfully jailbroke my device but I have a big problem now! I can`t use the mobile Internet I am paying for. I got the 3G Symbol up in my Statusbar (sometimes its white sometimes its blue). Phone calls and Wifi are fine.

I spend hours and hours in the Internet and none of them worked.
- Put simcard in and out
- install Bossprefs, switch the 3G and Edge toggles and deinstall again
- Use iphone Configurator and create a profile
- restore mobile settings
- etc.

Please help me with this problem! I am using vodafone (in germany) and a have an iPhone 4 with jailbreaked FW 4.2.1 (greenpoison).

 

[DaRealElvis]

I found my problem!

It is not related to the jailbreak at all. Aparrently my mobile internet stops working when I try to recover an Backup from my old Iphone 3G!!!!!

Is there any possible way to just synchronice all my phone numbers, SMS, etc. indivually till I find what is causing the not working internet?

Or has anyone a clue what is causing this. I am trying to figure it out for a week already so help would be much appreciated.