Today we have 6 years from our first Update.
Mkey_v8.3.4_Build_01.JUL.2016.exe
https://friendsgsm.forumotion.com/t31-zte-marvell-hacked-now-zte-wisefone-too-mkey-v8-3-4-build-01-07-2016
Mkey_v8.3.4_Build_01.JUL.2016.exe
https://friendsgsm.forumotion.com/t31-zte-marvell-hacked-now-zte-wisefone-too-mkey-v8-3-4-build-01-07-2016