having problems unrooting mt4g

[dvlmn]

okay so im trying to unroot my mt4g that i bought already rooted all i know is that it had a synergy rom on it and it was running 2.3.3 (gingerbread?) i want to go back to stock... ive followed guides using the pd15img.zip and unroot folder on my sdcard hboot does its thing with checking for other pd15diag.zip pd15diag.nbh files (not found) then pd15img.zip then goes to a second screen checks the pd15img.zip and goes back to select fastboot, recovery, etc. still rooted... this phone has synergy rom and was/is running 2.3.3 gingerbread i used to get a message saying my radio was to new or something like that please help me

 

[newboyx]

http://forums.androidcentral.com/mytouch-4g-rooting-roms-hacks/

Check here

 

[olivas0304]

Is there places you can take your phone to have this done?