So finally Froyo was rolled out for T-Mobile in the UK, and it successfully updated. Was still laggy though, so despite my noobness, I thought I'd try RyanZA's One Click Lag Fix (preceded by z4root to root it), and it really seems to have made a difference.
However, I then noticed that SMS messaging wasn't working, and after some digging around finally accepted that I'd probably have to do a factory reset and go through the pain of reloading stuff. This worked (Messaging now works again), but I wasn't sure what would happen tp the lag fix. OCLF now warns me that a lag fix is in place, but won't allow me to do anything - both the install and the undo options are showing as unavailable. So, now I'm not sure whether the lag fix has persisted, and I don't appear to have any way to undo it if I ever have a problem.
Help please !
However, I then noticed that SMS messaging wasn't working, and after some digging around finally accepted that I'd probably have to do a factory reset and go through the pain of reloading stuff. This worked (Messaging now works again), but I wasn't sure what would happen tp the lag fix. OCLF now warns me that a lag fix is in place, but won't allow me to do anything - both the install and the undo options are showing as unavailable. So, now I'm not sure whether the lag fix has persisted, and I don't appear to have any way to undo it if I ever have a problem.
Help please !
as im not 100% sure). I think formatting the sd card will just erase all data whilst leaving the OS alone. So you would loose all your sms, contacts (these should be synced to your google account though if you have thenm set up properly) and apps. You could always connect the phone to your pc and just copy the whole of the sd card over as a back-up incase it goes wrong.