Often require the "Receive Full" fix by using a 4-pin header instead of the standard RS232 port.
Try lowering the Bits per second to or 57600 , and match this setting inside your flashing software. 3. The "Power Cycle" Timing Often require the "Receive Full" fix by using
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 Often require the "Receive Full" fix by using
The "speed" of the data transfer doesn't match between the software and the hardware. Often require the "Receive Full" fix by using
on your adapter must go to TX (Transmit) on the STB. GND (Ground) must be connected to GND .
Are you using a adapter or a standard RS232 cable for this connection?