Ensure the COM port number selected inside the HYT software matches the exact port number listed under "Ports (COM & LPT)" in your Windows Device Manager.

Check the sticker beneath your radio's battery pack. It will list the exact model number and frequency range (e.g., 400–420 MHz or 450–470 MHz). Only enter frequencies that fall strictly within that specified hardware window. Error: "Communication Error" midway through Writing Cause: Loose cable connection or low radio battery.

Many of these contain viruses. The official software is lightweight (usually under 10 MB).

The radio will typically beep or flash its LED to signify a successful write.

While this guide focuses on the standard TC-500, many users confuse it with the . The 'S' model requires different CPS (Customer Programming Software) . Do not attempt to use TC-500 software on a TC-500S; you will brick the radio’s logic board. Always verify your radio model before downloading software.

| Problem | Most Likely Cause & Solution | | :--- | :--- | | | Driver is not installed, or the cable is connected before the driver. Uninstall the driver, restart, and reinstall the driver before plugging in the cable. | | Software fails to read/write | The COM port number is wrong. Check the exact port number in Windows Device Manager. Also, try a different USB port, unplug and re-plug the cable, or reinstall the software. | | Driver installation fails on Windows 10 | Driver is not digitally signed for modern Windows. You may need to enable "Test Mode" in Windows startup options to force-install the older driver. An older laptop with Windows 7 is the most reliable solution. | | Radios don't communicate after programming | Frequency mismatch. The most common error is having different frequencies or signaling (CTCSS/CDCSS) codes set on communicating radios. Double-check that your target settings match the master radio. | | Software requires a password | The radio has been password-locked by a previous owner or dealer. You must contact the previous owner or dealer to get the password. There is no universal unlock code. | | LED flashes orange during cloning | An error occurred during the cloning process. Check the clone cable connection and make sure both radios have sufficient battery power. Start the process again from the beginning. |

Ensure you are using a genuine or high-quality Prolific-based cable to avoid communication errors during programming.

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.

If your software only gives options for COM1 and COM2, but Windows assigned your USB cable to COM12, you must change it. Go to Windows Device Manager -> Port Properties -> Advanced, and manually reassign the cable to an open lower port number (like COM2 or COM3).

Hyt Tc-500 Programming Software ~upd~ -

Ensure the COM port number selected inside the HYT software matches the exact port number listed under "Ports (COM & LPT)" in your Windows Device Manager.

Check the sticker beneath your radio's battery pack. It will list the exact model number and frequency range (e.g., 400–420 MHz or 450–470 MHz). Only enter frequencies that fall strictly within that specified hardware window. Error: "Communication Error" midway through Writing Cause: Loose cable connection or low radio battery.

Many of these contain viruses. The official software is lightweight (usually under 10 MB). Hyt Tc-500 Programming Software

The radio will typically beep or flash its LED to signify a successful write.

While this guide focuses on the standard TC-500, many users confuse it with the . The 'S' model requires different CPS (Customer Programming Software) . Do not attempt to use TC-500 software on a TC-500S; you will brick the radio’s logic board. Always verify your radio model before downloading software. Ensure the COM port number selected inside the

| Problem | Most Likely Cause & Solution | | :--- | :--- | | | Driver is not installed, or the cable is connected before the driver. Uninstall the driver, restart, and reinstall the driver before plugging in the cable. | | Software fails to read/write | The COM port number is wrong. Check the exact port number in Windows Device Manager. Also, try a different USB port, unplug and re-plug the cable, or reinstall the software. | | Driver installation fails on Windows 10 | Driver is not digitally signed for modern Windows. You may need to enable "Test Mode" in Windows startup options to force-install the older driver. An older laptop with Windows 7 is the most reliable solution. | | Radios don't communicate after programming | Frequency mismatch. The most common error is having different frequencies or signaling (CTCSS/CDCSS) codes set on communicating radios. Double-check that your target settings match the master radio. | | Software requires a password | The radio has been password-locked by a previous owner or dealer. You must contact the previous owner or dealer to get the password. There is no universal unlock code. | | LED flashes orange during cloning | An error occurred during the cloning process. Check the clone cable connection and make sure both radios have sufficient battery power. Start the process again from the beginning. |

Ensure you are using a genuine or high-quality Prolific-based cable to avoid communication errors during programming. Only enter frequencies that fall strictly within that

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.

If your software only gives options for COM1 and COM2, but Windows assigned your USB cable to COM12, you must change it. Go to Windows Device Manager -> Port Properties -> Advanced, and manually reassign the cable to an open lower port number (like COM2 or COM3).