Note: If your device says "No update available," you are likely on the latest stable version released by the manufacturer.
Select the software update and press to download and install automatically [16, 17]. qmax mst-999 h2 mini 4 software update
Once you have the correct firmware file (usually a .bin , .img , or .abs file), follow this precise procedure. The requires a USB flash drive or microSD card. Note: If your device says "No update available,"