IF you have downloaded Dload/Update.aap based firmware follow this procedure to install firmware on your device. ROM install Step one : Prepare an SD card, it is recommended to use Kingstone, or Kingmax, size is recommended that more than 1G.
Step Two : Formatting SD card (optional).
Step Three : copy a large package path UPDATA.APP to the SD card dload UPDATA.APP.
Step four : Check the root directory of the SD card you dload UPDATA.APP.
Step Five : SD card into the phone is switched on in the main screen, press the Menu key, the system updates -> SD card upgrade -> confirm -> upgrade, backup data, select the backup data; upgrade.
Step Six : The upgrade process progress bar shows after the finish of the pending progress bar, the phone automatically restart.
OR
Step one: Prepare an SD card, it is recommended to use Kingstone, or Kingmax, size is recommended that more than 1G.
Step Two: Formatting SD card (optional).
step three : copy a large package path UPDATA.APP to the SD card dload UPDATA.APP.
Step four: Check the root directory of the SD card you dload UPDATA.APP.
Step Five: cell phone turned off, insert the SD card, while pressing the volume up button + volume down key switch button, the phone automatically enters the upgrade mode, and then begin the upgrade in Figure
Step Six: After the progress bar to go full fixed, the phone will automatically restart If you do not manually remove the battery.
Good Luck.
Br
Babar Abbasi