[Honor 5X Questions & Answers] clsA:
it's unfortunate you had a bad experience using the 5-14 TWRP version but I can assure you your case is unique and I can show you numerous cases where people restored my b151 backup to get their phone back up and running for many different reasons. Returning to lollipop from MM is not the main purpose of the backup but it does work long enough to do the dload/update.app method to get everything back to stock.

Their is an even newer more powerful version of TWRP posted by [MENTION=4478781]yuweng[/MENTION] here >> http://xdaforums.com/showpost.php?p=67851428&postcount=2 that would make it even easier to revert from MM to L without the need of the dload/update.app

I personally used this backup just to test and it worked perfectly

"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\boot.emmc.win"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\boot.emmc.win.md5"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\cache.ext4.win"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\cache.ext4.win.md5"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\cache.info"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\cust.ext4.win"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\cust.ext4.win.md5"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\cust.info"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\data.ext4.win"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\data.ext4.win.md5"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\data.info"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\efs1.emmc.win"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\efs1.emmc.win.md5"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\efs2.emmc.win"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\efs2.emmc.win.md5"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\erecovery.emmc.win"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\erecovery.emmc.win.md5"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\firmware.info"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\firmware.vfat.win"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\firmware.vfat.win.md5"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\misc.emmc.win"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\misc.emmc.win.md5"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\oeminfo.emmc.win"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\oeminfo.emmc.win.md5"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\persist.ext4.win"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\persist.ext4.win.md5"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\persist.info"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\recovery.emmc.win"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\recovery.emmc.win.md5"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\recovery.log"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\system.ext4.win000"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\system.ext4.win000.md5"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\system.ext4.win001"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\system.ext4.win001.md5"
"C:\Users\Cliff\Desktop\2016-07-02--08-28-34_KIW-L24C567B151\system.info"

and I have created a new one that includes tz.img which seems to be a key identifier of the OS version