This method is often the most straightforward for Huawei phones.
Connect your formatted FAT32 MicroSD card to your computer using a card reader. huawei cun-l21 flash file sd card
Wait for the installation to finish (this may take 5-10 minutes). This method is often the most straightforward for
: Charge your phone to at least 70% to prevent it from shutting down mid-process. huawei cun-l21 flash file sd card
Tap on the button (or three dots) and select Local Update .