: Download the correct firmware file (usually in .bin format) and the dedicated update tool from a trusted supplier or the Satlink archive .

This updates the core operational system of the satellite finder. System updates (such as upgrading from older V4.3 systems to V6.2 or V7.1) correct fundamental bugs, stabilize LNB voltage delivery, resolve screen freezes, and improve automatic angle calculations. 2. Transponder (TP) and Satellite List Updates

| Problem | Likely Cause | Fix | | :--- | :--- | :--- | | | Wrong cable (charge-only) or driver not installed. | Use a known data USB cable. Reinstall PL2303 driver. | | Upgrade tool hangs at 0% | COM port conflict or wrong baud rate. | Force the COM port to 115200 baud in Device Manager. Reboot PC. | | “File mismatch” error | Firmware is for a different hardware revision. | Open the battery cover. Read H/W version. Find matching firmware. | | Screen stays black after update | Bootloader corrupted or incomplete write. | Repeat the update using Method B (force boot mode). | | Satellite list is still old | The update didn’t write the transponder table. | Factory reset: Menu → System → Factory Default → OK. Then re-scan. |