Huawei GR3 TAG-L21 Firmware Flash File/Stock ROM Huawei GR3 TAG-L21
How To ROM install Huawei GR3 TAG-L21
- Download ROM of your Huawei GR3 TAG-L21
- Create a new folder and rename it to dload
- Prepare an SD card, it is recommended to use Sandisk, Kingstone, or Kingmax, size is recommended.
- copy a large package path UPDATE.APP to the SD card dload
- Now copy that dload folder to root for your sd card.
- Put sd card on your phone and power off your cell phone.
- Now press Volume + Volume – and power at the same time.
- The update process will start.
- No,w wait for few minutes after update process finish cell phone will restart.
- After flashing process starts, it might take up to 5-10 minutes. So keep patience and wait
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