[Honor 7X  Guides, News, & Discussion] Sudeep Duhoon:
No fancy stuff for now, this guide will be to the point.

We are going to use TWRP that mounts only data and cache and dd command to backup all partitions to external_sd

Things needed:

Unlocked honor 7x with twrpimgmount installed : Go here

A 16gb memory card

Instructions:

1. Reboot your phone to recovery and connect it to PC

2. Open cmd in pc and navigate to adb and fastboot dir (you did this when you flashed twrp using fastboot)

3. run following commands one at a time (wait till it back ups)

adb shell
dd if=/dev/block/mmcblk0p28 of=/external_sd/boot.img
dd if=/dev/block/mmcblk0p41 of=/external_sd/bootfail_info
dd if=/dev/block/mmcblk0p36 of=/external_sd/cache.img
dd if=/dev/block/mmcblk0p45 of=/external_sd/cust.img
dd if=/dev/block/mmcblk0p34 of=/external_sd/dfx
dd if=/dev/block/mmcblk0p30 of=/external_sd/dts
dd if=/dev/block/mmcblk0p5 of=/external_sd/fastboot
dd if=/dev/block/mmcblk0p4 of=/external_sd/frp
dd if=/dev/block/mmcblk0p27 of=/external_sd/fw_hifi
dd if=/dev/block/mmcblk0p3 of=/external_sd/fw_lpm3
dd if=/dev/block/mmcblk0p37 of=/external_sd/hisitest0
dd if=/dev/block/mmcblk0p38 of=/external_sd/hisitest1
dd if=/dev/block/mmcblk0p39 of=/external_sd/hisitest2
dd if=/dev/block/mmcblk0p20 of=/external_sd/misc
dd if=/dev/block/mmcblk0p31 of=/external_sd/modem_fw
dd if=/dev/block/mmcblk0p18 of=/external_sd/modem_om
dd if=/dev/block/mmcblk0p17 of=/external_sd/modem_secure
dd if=/dev/block/mmcblk0p10 of=/external_sd/modemnvm_backup
dd if=/dev/block/mmcblk0p6 of=/external_sd/modemnvm_factory
dd if=/dev/block/mmcblk0p11 of=/external_sd/modemnvm_img
dd if=/dev/block/mmcblk0p12 of=/external_sd/modemnvm_system
dd if=/dev/block/mmcblk0p21 of=/external_sd/modemnvm_update
dd if=/dev/block/mmcblk0p7 of=/external_sd/nvme
dd if=/dev/block/mmcblk0p8 of=/external_sd/oeminfo
dd if=/dev/block/mmcblk0p40 of=/external_sd/patch
dd if=/dev/block/mmcblk0p16 of=/external_sd/persist
dd if=/dev/block/mmcblk0p48 of=/external_sd/product
dd if=/dev/block/mmcblk0p29 of=/external_sd/recovery.img
dd if=/dev/block/mmcblk0p22 of=/external_sd/recovery2.img
dd if=/dev/block/mmcblk0p23 of=/external_sd/reserved2
dd if=/dev/block/mmcblk0p9 of=/external_sd/reserved3
dd if=/dev/block/mmcblk0p14 of=/external_sd/reserved4
dd if=/dev/block/mmcblk0p15 of=/external_sd/reserved5
dd if=/dev/block/mmcblk0p32 of=/external_sd/reserved7
dd if=/dev/block/mmcblk0p33 of=/external_sd/reserved8
dd if=/dev/block/mmcblk0p43 of=/external_sd/reserved9
dd if=/dev/block/mmcblk0p42 of=/external_sd/rrecord
dd if=/dev/block/mmcblk0p13 of=/external_sd/secure_storage
dd if=/dev/block/mmcblk0p26 of=/external_sd/sensorhub
dd if=/dev/block/mmcblk0p19 of=/external_sd/splash2.img
dd if=/dev/block/mmcblk0p44 of=/external_sd/system.img
dd if=/dev/block/mmcblk0p24 of=/external_sd/teeos
dd if=/dev/block/mmcblk0p25 of=/external_sd/trustfirmware
dd if=/dev/block/mmcblk0p49 of=/external_sd/userdata.img
dd if=/dev/block/mmcblk0p35 of=/external_sd/vbmeta
dd if=/dev/block/mmcblk0p47 of=/external_sd/vendor.img
dd if=/dev/block/mmcblk0p46 of=/external_sd/version
dd if=/dev/block/mmcblk0p1 of=/external_sd/vrl
dd if=/dev/block/mmcblk0p2 of=/external_sd/vrl_backup

How to restore? (consider we have to restore system)

1. Reboot to twprimgmount

2. Copy your backed up image to external_sd

3. Run following command

adb shell
dd if=/external_sd/system.img of=/dev/block/mmcblk0p44

Join Telegram group if you are willing to test latest stuff.

Note: You can also use the TWRP backup function to get a stock backup. Restore it using twrp to get back to stock

DO NOT UNNECESSARILY RESTORE ALL PARTITIONS, IT MAY BRICK YOUR 7X.

A script @skippotter to make all this easy (not tested by me)

Follow next:

1. Flash magisk 14.0 (I use this) or Super su

2. Use different region firmware without rebranding