Unlocking iphone3g OS 3.0 problems

[1604error]

Hello, I recently unlocked my iphone3g using redsn0w and ultrasn0w. After unlocking the phone, I can't manage to make calls from my t-mobile UK sim when inserted in the iphone. I get full signal but can't send messages/recieve or call or recieve calls. I have tried 2 t-mobile sims and they do the same thing. The o2 network does not work on my phone for some reason. I have also managed to get the UK blyk sim to work for a while but blyk does not support the iphone.
Does anyone know how to solve the t-mobile or blyk fault i am having.

Thanks

[babyblue_pimp]

Hello, I recently unlocked my iphone3g using redsn0w and ultrasn0w. After unlocking the phone, I can't manage to make calls from my t-mobile UK sim when inserted in the iphone. I get full signal but can't send messages/recieve or call or recieve calls. I have tried 2 t-mobile sims and they do the same thing. The o2 network does not work on my phone for some reason. I have also managed to get the UK blyk sim to work for a while but blyk does not support the iphone.
Does anyone know how to solve the t-mobile or blyk fault i am having.

Thanks

First thing i would try is a full back up, then a full DFU restore to stock, restore as a new phone, jailbreak, unlock. hopefully that fixes your problems, it seems like an issue on the ultrasnow side.

If you can't get any more help from here, and you haven't tried, try posting something on the dev team blog. the people on there are a little more experienced.