Upgrade operations may erase all your user data. So if there is some important information, you should backup them before the upgrade.Before flashing, you should unzip the SDupdate_Package.tar.gzfile, and get out UPDATE.APP to do upgrade operation on your SD Card. To unzip, we may sometime share two zip file, Update.zip package always comes with the main update.app which is a complete OS. Where has data file comes with data files from Huawei? Check the below file list.
- First of all, Download the Update Package
- Recommended: Format the Micro SD card (This operation is optional).
- Now Unzip the Update.zip package and
- Copy the entire dload folder (with UPDATE.APP in it) to the root directory of the Micro SD card.