Download ZTE Kis3 Max official firmware from the link here, and follow the provided flashing instructions to learn how to flash the stock rom.
If you notice that any of the links provided below is broken or doesn’t work, please post in comments section so we fix and update it ASAP.
Download Options
File Name: 2015070712584197.zip
Size: 463 MB
Build: 275030B0131MT_BH_QB18S_P172F10V1.0.0
Region: Bosnia and Herzegovina
Firmware – Download
File Name: 2015061014504659.zip
Size: 397 MB
Build: 261780B0447MTE-BG-QB18S-P172F10V1.0.0
Region: Bulgaria
Firmware – Download
File Name: 2015061714430584.zip
Size: 450 MB
Build: 265710B0288DIS_GR_QB18D_P172F10V1.0.0
Region: Greece
Firmware – Download
File Name: 2014081916275203.zip
Size: 361 MB
Build: 255610B0324BGH-AR-TB25S-P172A10V1.0.0
Region: Argentina
Firmware – Download
File Name: 2015070114455904.zip
Size: 479 MB
Build: 271501B0476ORA-RO-QB18S-P172F10V1.0.1
Region: Romania
Firmware – Download
File Name: 2015120710575606.zip
Size: 460 MB
Build: 299320B0638DIS_TZ_QB18D_P172F10V1.0.0
Region: Tanzania
Firmware – Download
File Name: 2015061616153110.zip
Size: 485 MB
Build: 264441B0357VG-UK-QB18S-P172F10V1.0.1
Region: United Kingdom
Firmware – Download
How to flash
Click here to view complete flashing instructions for any of the above firmware packages. If you have any issue with flashing, post in comments section below for assistance.