Help Please help! No signal after unlocking?!?

[man10101]

Hello
I have a samsung galaxy ace gt-s5830 which was originally on o2 uk that i wanted to use on vodafone uk
I managed to root the phone and get the unlock code from the phone via the bml5.img and the XVI32 Hex Editor
I then unrooted the phone put in the new sim and entered the unlock code
The phone now says vodafone uk on the lock screen but doesnt have any signal!?!
It still has an imei and baseband number and ive checked that the imei number isnt blocked
Ive also checked that all locks are off via samsung code *#7465625#

I have flashed the firmware to UK Gingerbread 2.3.6. using odin 4.38 and a one package tar.md5 file, wiped caches and rebooted etc
but the problem still remains!?!?!
Other than the no signal problem the phone works perfect and also when i take the sim card out theres signal?!?!

If anyone has any ideas or needs any further info then please let me know
I am new (probably pretty obviously!) to all this so please keep replys as simple as pos!!!
Many thanks
Matt

 

[CDPlant]

Hi, welcome to Android Forums

Before checking to see if the phone itself is at fault, you should check the Vodafone network status here and see if there are any outages in your area. There seem to be quite a lot around Oldham and Blackburn if you happen to live around there (some others are Kingston on Thames, Guildford and Southampton.)

The first thing I thought it possibly the IMEI has been wiped, but I can see from your post that this isn't the case.

Did you make a backup of the first ROM you had? If so (and you can't get it sorted soon) then it may be worth rooting your phone and restoring the backup so that you have signal for the time being