V815W SD card upgrading instruction & software package(Appliance)-266650B0210DIS-EG-QB18D-P172R10V1.0.0_halabttech - Rom Root File

V815W SD card upgrading instruction & software package(Appliance)-266650B0210DIS-EG-QB18D-P172R10V1.0.0_halabttech

ZTE V815W