Download karbonn a12 plus manuDroidV1.0 Xepria Custom rom
Here are going to share custom ROM for Karbonn A12 Plus…this rom is based on Xepria ROM.
and it is working but not in perfect form so you may test it at your own risk.
first of all you will need one Custom Recovery installed in your Karbonn a12 Plus…
Just google for it and install any Recovery…I prefer TWRP or CWM…these work is done in CWM recovery so you can try CWM for best result.
After that download these Split part of Frimware..
Place all three files in one folder and use winrar software to unrar these file,
to extract them just right click on part 1 and then click on extract here and all three files will extract there and make one single file…
now that file will be in zip file so place that zip file in your sdcard and place that card in your phone and reboot phone in recovery and flash this ROM.
before flashing this just clean cache and wipe data also and then install new rom.