Ok so first smartphone and new to android but think phone is alright so far. Bought it to cut my teeth on both and as a starter phone, still as such id rather not brick it without little knowledge. First question is what files do I need to backup before start playing with roms? Such as imei and anything else not backed up after cwm backup that is specific to each phone?
I uasually backup all my partitions on any phone i buy, once I am rooted
you you have to make sure you have a pretty big sd card like 8gb
you should already have the usb drivers and the adb executable in your c:\z740_cwm_tchv2 folder if you have installed CWM
you should do this from CWM instead of Android, and have /storage/sdcard1 mounted and everything else mounted
click start - run - cmd
cd \z740_cwm_tch
adb shell
dd if=/dev/block/platform/msm_sdcc.1/by-name/aboot of=/stroage/sdcard1/aboot.bak
dd if=/dev/block/platform/msm_sdcc.1/by-name/boot of=/stroage/sdcard1/boot.bak
dd if=/dev/block/platform/msm_sdcc.1/by-name/fsg of=/stroage/sdcard1/fsg.bak
dd if=/dev/block/platform/msm_sdcc.1/by-name/grow of=/stroage/sdcard1/grow.bak
dd if=/dev/block/platform/msm_sdcc.1/by-name/misc of=/stroage/sdcard1/misc.bak
dd if=/dev/block/platform/msm_sdcc.1/by-name/modem of=/stroage/sdcard1/modem.bak
dd if=/dev/block/platform/msm_sdcc.1/by-name/modemst1 of=/stroage/sdcard1/modemst1.bak
dd if=/dev/block/platform/msm_sdcc.1/by-name/modemst2 of=/stroage/sdcard1/modemst2.bak
dd if=/dev/block/platform/msm_sdcc.1/by-name/persist of=/stroage/sdcard1/persist.bak
dd if=/dev/block/platform/msm_sdcc.1/by-name/rpm of=/stroage/sdcard1/rpm.bak
dd if=/dev/block/platform/msm_sdcc.1/by-name/sbl1 of=/stroage/sdcard1/sbl1.bak
dd if=/dev/block/platform/msm_sdcc.1/by-name/sbl2 of=/stroage/sdcard1/sbl2.bak
dd if=/dev/block/platform/msm_sdcc.1/by-name/sbl3 of=/stroage/sdcard1/sbl3.bak
dd if=/dev/block/platform/msm_sdcc.1/by-name/splash of=/stroage/sdcard1/splash.bak
dd if=/dev/block/platform/msm_sdcc.1/by-name/ssd of=/stroage/sdcard1/ssd.bak
dd if=/dev/block/platform/msm_sdcc.1/by-name/system of=/stroage/sdcard1/system.bak
dd if=/dev/block/platform/msm_sdcc.1/by-name/tombstones of=/stroage/sdcard1/tombstones.bak
dd if=/dev/block/platform/msm_sdcc.1/by-name/tz of=/stroage/sdcard1/tz.bak
dd if=/dev/block/platform/msm_sdcc.1/by-name/ztecfg of=/stroage/sdcard1/ztecfg.bak
dd if=/dev/block/platform/msm_sdcc.1/by-name/ztelk of=/stroage/sdcard1/ztelk.bak
you can skip
cache
recovery
userdata
/recovery"