by USB Upgrade. If your any above STB is dead then you can follow given below simple steps:
1. Take Fresh or original firmware from company.
2. Rename this firmware file to "rom.bin"
3. Now keep this "rom.bin" file to USB root
4. Now Restart your box and keep press "OK" button till show upgrade window
5. After 30 second your STB become alive again
You can view this youtube video for detail information here:
But make sure your box is showing loading or load massage on LED screen if LED screen is not blowing and showing only RED light then you cannot recover your box. You have to send your box to company service centre.
This trick is only for recover your dead boxes, we do not help to anyone to change other firmware which involve in illegal activity. Your set-top box may damage permanently so take your responsibility wisely.
If you have any question regarding this post, you can feel free ask your question below.