: Set this accurately (e.g., "Others" or your specific chipset model like GX3211).
: Ensure you are using a proper serial cable; some setups require a cross-over (null modem) configuration. Software Configuration (GXDownloader Example) : Set this accurately (e
Modern STBs use 1.8V or 3.3V logic. A USB-to-UART adapter set to 5V can cause erratic reception, misinterpreted start bits, and buffer overruns due to framing errors. : Set this accurately (e.g.
If the above steps do not resolve the issue, you may need to use more advanced troubleshooting techniques, such as: misinterpreted start bits
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