Description

Huawei BAH-L09 dump file:

BAH-L09 dump file is in fact a complete backup of all data inside the hard drive (emmc), which includes user data, Imei network, security files, etc.
The BAH-L09 dump file contains three main files
rom1
rom2
rom3

These three files are backed up entirely from a healthy BAH-L09 hard drive, allowing you to easily burn to a BAH-L09 raw hard drive.
The BAH-L09 dump rom1 file has a high volume because it also contains user data.
In addition to these original rom1, rom2, rom3 files of Huawei BAH-L09, there is another file with extcsd extension. The task of this file is to perform the BAH-L09 hard drive configuration operation.
Dump files are often used for chipsets other than MediaTek. In MediaTek chipsets, configuring the hard drive is enough.
For other processors (Qualcomm, Exynos, Silicon, Intel, etc.), burning the dump file makes it easier to start the phone after replacing the hard drive.

Some usage of BAH-L09 emmc dump file performance:

When the hard drive has a problem, it can be fully repair with dump file

Used when the phone hangs and gets stuck on the logo

After replacing the hard drive, it will be written on the hard drive