To quantify what a version does, we ran tests on two identical A55 devices—one on stock launch firmware (v1.0) and one on the latest v2.3 firmware.
. Always check here first for official OTA (Over-The-Air) updates from ZTE. Manual Flash
Ensure you are running the latest build by navigating to Settings > System > System Update . If you have a specific build number, research if newer updates are available via ZTE’s servers or SD card updates.
