Flashing ROM

[dkdream]

Sorry if this has been asked before.

I'm planning to flash my Atom Life to PDAVIET ROM WM 6.1 CE OS 5.2.20764 Build 20764.1.4.3

I've never done this before but using SD card, it seems simple.
I'm just wondering, after flashing it, could I unflash it my original OS version? Is there anything I could do to backup my old ROM?

Thanks.

[dkdream]

found this for backing up the ROM
http://wiki.xda-developers.com/index.php?pagename=ATOM_SD_DUMP

But I guess it's not much of use since I don't know how to convert the dump file into a flash ROM file...

[rdshahi]

sorry if this has been asked before.

I'm planning to flash my atom life to pdaviet rom wm 6.1 ce os 5.2.20764 build 20764.1.4.3

i've never done this before but using sd card, it seems simple.
I'm just wondering, after flashing it, could i unflash it my original os version? Is there anything i could do to backup my old rom?

Thanks.
please download your factory default setup software from this site and tehn try best of luck.