Before you give your handset to repair shop or buy new handset, please try the following procedure to repair your device. First charge your battery more then 70% with internal or external charger or battery charger. if backup is possible then backup your data in SD card or online backup. see firmware update guide and check your hardware and software version before start process. we are not responsible for any kind of damage during software update, firmware update. try this on your risk.
Karbonn A9 Star Flash File, Tools & Recovery Guide
Use Of Firmware File And Tools:
update and re-install your firmware, Blinking repair, Imei repair, Dead handset Recovery, Format, reset to factory, hard reset, unlock, remove pattern lock etc.
Note: use of firmware file and tool on you own risk. we don't take any responsibility of any damage of your handset. always read firmware update instruction carefully.