In the same menu, look for or Software Version . Write it down. It will look something like V890V1.0.0B20 or ZTE_V890_20190615 .
ZTE devices, particularly budget models like the V890, often come pre-installed with carrier applications or third-party promotional software ("bloatware") that cannot be easily uninstalled. Over time, malware can also embed itself deep into the system folders. Flashing a clean version of the firmware wipes the system partition, removing all unwanted software and malicious files instantly. zte v890 firmware
You need the specific ROM file for the ZTE V890. These usually come in archive formats (ZIP, RAR) containing files with extensions like .mbn , .bin , or .img . Be sure to verify the model number; flashing firmware intended for a ZTE V790 or V889 on a V890 can cause critical errors. In the same menu, look for or Software Version
You have a carrier-unlocked model with no ARB enabled. Check your current build: if it ends with B20 and you want B10 , search XDA for “ZTE V890 rollback package.” Carriers sometimes provide official downgrade Zips. ZTE devices, particularly budget models like the V890,