If the phone is functional, enter the dialer code *#*#2846579#*#* , navigate to ProjectMenu > Software Upgrade > SDCard Upgrade , and confirm the update.
This tutorial provides a comprehensive guide on how to flash Huawei firmware using an SD card, including necessary precautions: How to FLASH HUAWEI phone Using SD card [Full Tutorial] YouTube• Jan 31, 2023 Huawei Scl-u31 Firmware Sd Card
Huawei devices of this era (MSM8909 Snapdragon 210) contain a built-in emergency recovery agent in the bootloader. When the device detects a specific folder ( dload ) containing a specific file ( UPDATE.APP ) on the root of an SD card, it bypasses the corrupted system and forces a rewrite of the NAND flash. If the phone is functional, enter the dialer
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is stuck on the boot logo, suffering from software errors, or needs a fresh stock ROM installation, the dload method Nothing