I found that SEMC 8.4 and SETool theoretically can do it. But unfortunatelly I don't have this phone on my hands now.
This stuff you can get from DL area or from RapidShare. Pls, post here your successful/faulty reports if you try to do this. With CID & FW version ;)
Also it's good to make a patchfile - difference in firmware BEFORE and AFTER.




