For advanced users needing to manually install firmware, the process usually involves using a PC and specialized software like the (since the A54 uses a Unisoc chipset) or ADB.
Firmware ZTE Blade A54 it can enhance efficiency, protection, and features. ... use a usb cord to connect it to your computer. 3.107.203.122 Firmware ZTE Blade A54
The ZTE Blade A54 is powered by a quad-core processor, coupled with 3GB/4GB of RAM and 64GB/128GB of internal storage. The firmware is optimized to provide smooth performance, and in our testing, we found that the device handled everyday tasks with ease. However, demanding tasks like gaming and heavy multitasking may cause some lag. For advanced users needing to manually install firmware,
Open the folder and run UpgradeDownload.exe . Step 4: Load the Firmware use a usb cord to connect it to your computer
Your phone turns on but gets stuck on the ZTE logo or restarts endlessly. This usually indicates that the system partition is corrupted. Re-flashing the stock firmware is the only cure.
until the logo appears to apply updates from an SD card or ADB. Firmware Sources