: Tools like UMT Dongle , Unlock Tool , and HCU Client are standard for this model. These tools can flash specific firmware sections while protecting the oeminfo and nvram partitions, which hold your IMEI and factory settings.

: Using a tool like UMT (QcFire) , the technician selects the "Flash" option but ensures the OEMInfo and NV (IMEI) partitions are not overwritten.

: If the device still has some life, holding Volume Up + Power while plugged into a charger may trigger Huawei eRecovery . This official method connects to Wi-Fi to download and install the latest authorized firmware version for your specific serial number, which is the safest way to avoid losing your IMEI. Step-by-Step Restoration (Professional Tools)

: For a completely "dead" device that does not respond to power, you must open the back cover and short specific Test Points on the motherboard to force the phone into 9008 EDL Mode . This allows professional tools to communicate directly with the Qualcomm chipset for low-level repairs.

: If the phone boots but is stuck on the logo, a "Wipe Data/Factory Reset" from the standard recovery menu (Volume Up + Power) often clears the remaining software glitches. Critical Cautions