Force upgrade
Step 1. Format the Micro SD card (This operation is optional).
Step 2. Copy the Software: main package to a directory named dload.
Step 3. Copy the entire dload folder (with UPDATE.APP in it) to the root directory of the Micro SD card. Check the file list is right.
Step 4. Make sure your handset is power off. Insert the Micro SD card into the handset. Press the VOLUME UP and VOLUME DOWN key, and then press the POWER key to power on the phone and enter the Software Upgrade Mode.
Step 5. When the progress bar stop, the phone will restart automatically.