- 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 | EMUI | Build Number | Region | Size | Buy |
|---|
| L21 | 5.1 | 3.1 | C328B108 | C328 | 1.99 GB | Buy
|
| L21 | 5.1 | 3.1 | C328B107 | C328 | 973 MB | Buy
|
| L21 | 5.1 | 3.1 | C328B105 | C328 | 1.84 GB | Buy
|
| L21 | 5.1 | 3.1 | C328B103 | C328 | 2.09 GB | Buy
|
| L21 | 5.1 | 3.1 | C328B102 | C328 | 1.82 GB | Buy
|
![LUA-L21 | Y3II [Stock Firmware]](/img/MB5.png)