If you have TA backup, use that..
There are various guides on how to do that properly with what precautions you must take and all...
But make sure you flash it over the same firmware you had taken it from, else you'll end up having a brick.
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WORKED AS A TESTER AND 'HALF'-DEVELOPER FOR CM7 PORTS AND CUSTOM ROMS FOR GALAXY 5 @ MadTeam FORUMS, QUITE LEARNER
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