Flash Stock firmware on Huawei Smartphone (Card Update)
Step 1: Create a new folder on your Micro SD Card and rename it to dload.
Step 2: Download and extract Huawei Smartphone firmware (for your device) on your Computer. After extracting you will be able to see these files:
Step 3: Now Copy UPDATE.APP and paste it the dload folder on your Micro SD card.
Step 4: Now Power Off your Huawei Smartphone.
Step 5: Now, Press Volume UP, Volume Down and Power Button at the same time for 5-8 seconds until the update process isnt started automatically.
Step 6: Update Process may takes 5-10 minutes to complete.
Step 7: Once Update Process is completed your device will reboot automatically and ready to use.