- All firmware are official and can be use to install via memory card or OTG Flash Drive.
- Be careful to select the appropriate Firmware for your devicemodel, wrong firmware may damage your device.
- Downgrade is not allowed in Huawei devices and may cause difficult problems.
- You can only install the firmware which has the same region with your device.
| Model | Android OS | Build Number | Security patch | Region | Size | Buy |
|---|
| U31 | 4.4.2 | C577B109 | – | C577 | 2.09 GB | Buy
|
| U31 | 4.4.2 | C577B106 | – | C577 | 993+882 MB | Buy
|
| U31 | 4.4.2 | C577B101 | – | C577 | 802 MB | Buy
|
![Y360-U31 | Huawei Y360 [Stock Firmware]](/img/MB5.png)