Use the link on this page to download the original and tested ZTE Nubia Z5S NX503A Flash File Firmware (Stock ROM).
ZTE Nubia Z5S NX503A Flash File (Firmware)
To download the proper firmware, please choose the relevant file according to your mobile device and click the download button below.
|File Size||767 MB|
|Flash Tool||QFIL Flash Tool|
|How to Flash||Follow Tutorial|
|Updated||24 March 2022|