[HOWTO][V500] Flashable zips to change between 4.2.2 and 4.4.2 Base
Here you have two flashable zips to easily change between 4.2.2 base and 4.4.2 base. The main purpose of these zips is to be able to change between 4.4.2 stock roms and AOSP based roms without having the brightness dim issue and without having to do a full upgrade/downgrade. Both files also install TWRP 220.127.116.11, each of them with their correct kernel.
aboot.img, sbl1.img, sbl2.img, sbl3.img, modem.img, persist.img, rpm.img, tz.img and TWRP 18.104.22.168 with stock 4.2.2 kernel.
aboot.img from 4.2.2 (so you can use custom recovery/rom), sbl1.img, sbl2.img, sbl3.img, modem.img, persist.img, rpm.img, tz.img and TWRP 22.214.171.124 with stock 4.4.2 kernel.
If you aren't sure how to use these zips, READ THIS
for his 4.2.2 flashable zip.
for his 4.4.2 flashable zip.
for the detailed instructions.