Tick off this list before you proceed:

: For devices that are unresponsive or require a specific version, offline packages can be downloaded from the ZTE Support Page

Spreadtrum/Unisoc Upgrade Tool (SPD Upgrade Tool) or Research Download Tool File Format: .pac Essential Prerequisites Before Flashing

The ZTE Blade A54 is a great option for budget-conscious buyers who want a reliable smartphone with impressive features. However, users who require high-performance devices or major Android updates may want to consider other options.

Ensure the old firmware’s build date is newer than the anti-rollback index. You can check by opening the android-info.txt inside the firmware zip.