How to Factory Download Upgrade tool

ROM loaded to the instructions you can manually fix errors as well as the development of the ROM.

Step 1 : Install Driver, the Driver and then you go to the next folder corresponding folder 32bit or 64bit operating system your

Run File DPInst.exe >> Driver Install anyway Next >> >> >> Select restart the computer Finish

Step 2: Load the original ROM for factory
UpgradeDownload.exe startup folder "Download_Tool_R2.9.9015 \ UPGRADEDOWNLOAD_R2.9.9015 \ Bin"

Select Load Package.

Select the file "xxx.pac" in the original ROM directory.

Wait 1 second ...
Click Start Downloading.

Z Remove the battery out, then insert the PIN.
Hold down the Volume Down button (volume down).
Cable mounted on, remain the Volume Down key, check considered Tool has run yet?

If not, then check the Driver run, if the tool can run then release the Volume Down button.
After running successfully, it will report the Finish, you select Stop Downloading and then remove the battery cable pulled, installation and startup.