This is a newer build with a file size of roughly 883.43MB.

An earlier build with a file size of approximately 835.32MB.

Insert the USB drive into the TV's USB port while it is off.

The TV should enter a firmware upgrade screen. Do not power off the device until the process reaches 100%.

You can find official support and download links on Dzgsm Support . Important Installation Notes

Press and hold the Power button on the TV (not the remote) and then plug in the power cord.