How extract "UNUSE" file with ADB shell tool and USB drive for Android 7 Hi3798MV200 device
This method allows you to make a full backup
and download the files of your Hi3798MV200 Android 7 device without the need of the Hitool loader.
Especially the core files, which are suitable to fix initialization failure problem and also not working IKS server problem.
deviceinfo
Code ADB shell : cmd read
cat /dev/block/mmcblk0p4 > /mnt/media_rw/sda1/mmcblk0p4.img
private.ext4
Code ADB shell : cmd read
cat /dev/block/mmcblk0p16 > /mnt/media_rw/sda1/mmcblk0p16.img
unuse
Code ADB shell : cmd read
cat /dev/block/mmcblk0p19 > /mnt/media_rw/sda1/mmcblk0p19.img
deviceinfo
Code ADB shell : cmd write
cat /mnt/media_rw/sda1/mmcblk0p4.img > /dev/block/mmcblk0p4
private.ext4
Code ADB shell : cmd write
cat /mnt/media_rw/sda1/mmcblk0p16.img > /dev/block/mmcblk0p16
unuse
Code ADB shell : cmd write
cat /mnt/media_rw/sda1/mmcblk0p19.img > /dev/block/mmcblk0p19
https://www.mediafire.com/file…ndroid-7-devices.rar/file
1‐ Install ADB drivers on your computer adb‐setup‐1.4.3
2‐ The computer and receiver must be connected to the same Internet network
3‐ Install USB FAT32 key in the receiver
4‐ After installing the Open Hidden Settings‐v1.2.apk application
5‐ Go to menu then app and press ok. Open Hidden Settings‐v1.2.apk
6‐ After that, from Settings, enter Developer Options and then activate the USB Debugging option
7‐ Extract the IP of the receiver and replace it in the file 1st_cmd.cmd in place of the IP 192.168.8.100
using the right mouse button and then edit or modify
8‐ Double click on the file 1st_cmd.cmd, a black interface will appear
9‐ Do not close the black window. Open cmd read ott750‐ott750 allure‐sda1-sdb1.txt
and copy cat /dev/block/mmcblk0p19 > /mnt/media_rw/sda1/mmcblk0p19.img
or the line cat /dev/block/mmcblk0p19 > /mnt/media_rw/sdb1/mmcblk0p19.img
10‐ Then paste it in the black window, then from the keyboard, press enter. Do not close the black window
11‐ You will get a file on the USB memory called mmcblk0p19.img It is your device's “unuse” file
12‐ If your device falls into initialization fail, return the mmcblk0p19.img file to the USB key and re‐install it on the receiver
13‐ And when the file manager appears, repeat stages 4, 5, 6, 7, and 8
14‐ Open the file cmd write ott750‐ott750 allure‐sda1‐sdb1.txt
15‐ and copy cat /mnt/media_rw/sda1/mmcblk0p19.img > /dev/block/mmcblk0p19
or the line cat /mnt/media_rw/sdb1/mmcblk0p19.img > /dev/block/mmcblk0p19
16‐ Then paste it in the black window, then from the keyboard, press enter
17‐ Restart the receiver, you will find your device working
18‐ You can also use this mmcblk0p19.img file with the hitool loader "unuse" section
KB to MB Conversion
https://www.gbmb.org/kb-to-mb
Enter the kilobytes (KB) value to convert to megabytes (MB).
Kilobytes → Megabytes
15267840 KB = 15267.84 MB (in decimal)
15267840 KB = 14910 MB (in binary)
Kilobytes → Megabytes
1024 KB = 1.024 MB (in decimal)
1024 KB = 1 MB (in binary)
Kilobytes → Megabytes
20480 KB = 20.48 MB (in decimal)
20480 KB = 20 MB (in binary)
Kilobytes → Megabytes
2048 KB = 2.048 MB (in decimal)
2048 KB = 2 MB (in binary)
Kilobytes → Megabytes
8192 KB = 8.192 MB (in decimal)
8192 KB = 8 MB (in binary)
Kilobytes → Megabytes
40960 KB = 40.96 MB (in decimal)
40960 KB = 40 MB (in binary)
Kilobytes → Megabytes
1048576 KB = 1048.576 MB (in decimal)
1048576 KB = 1024 MB (in binary)
Kilobytes → Megabytes
51200 KB = 51.2 MB (in decimal)
51200 KB = 50 MB (in binary)
Kilobytes → Megabytes
819200 KB = 819.2 MB (in decimal)
819200 KB = 800 MB (in binary)
Kilobytes → Megabytes
12024832 KB = 12024.832 MB (in decimal)
12024832 KB = 11743 MB (in binary)
Kilobytes → Megabytes
4096 KB = 4.096 MB (in decimal)
4096 KB = 4 MB (in binary)
