The computer (via the flashing tool) is waiting for a "Ready" signal from the STB.
To understand the fix, you need to understand the "conversation" happening: The computer (via the flashing tool) is waiting
Windows tries to manage serial data by buffering it, which can interfere with the STB's simple Bootrom logic. In , go to your COM port Properties . Click Advanced . click "Start" or "Connect" first.
Only then plug in the power to the STB.The software needs to catch the "Bootroom" signal the millisecond the chip receives power. 4. Use a Different USB-to-TTL Adapter The computer (via the flashing tool) is waiting
Bootrom errors often occur because the STB is already in a "frozen" state when the software tries to talk to it. Turn the STB (unplug the power). In the PC software, click "Start" or "Connect" first.