Before beginning the flashing process, prepare your device and materials to prevent bricking your phone.
Press and hold the volume up and power buttons simultaneously to enter the recovery mode. The exact method may vary. huawei cun-l21 flash file sd card
Open the root directory of your formatted microSD card. Create a new folder and name it exactly dload (all lowercase). Before beginning the flashing process, prepare your device
The phone will show a progress bar. this process. Before beginning the flashing process