Create a folder at the root folder of your memory card named ‘update’, and copy all ‘*.zip’ files and ‘recover.img’ to your phone’s memory card.
With the phone turned off, press the Home key + Power & End key to enter recovery mode, do and do the following:
1. Press the Home key to search the zip file on your memory card, and press the Home key again to update the software.
2. Press the Call key to do board test.
3. Press the Back key to restore the factory default settings.
4. Press the Power & End key to reboot your phone after the update finishes.
(ROM almost Android)