Tait Tm8115 | Programming Software

| Error / Symptom | Likely Cause | Solution | |----------------|--------------|----------| | “Radio not responding” | Wrong COM port, cable unpowered, or radio in TX | Verify power, reseat cable, try another COM port. | | “Invalid band” | Attempting to write VHF frequencies to UHF radio | Check model label. Use only band-appropriate freqs. | | “Checksum error after write” | Interrupted programming or voltage drop | Re-write. Use a stable 13.8V power supply (not battery alone). | | “Password required” | Codeplug is protected | Obtain password from previous admin or factory reset (service center). | | Software crashes on launch | Incompatible Windows version or missing runtime DLLs | Run as Administrator. Install Visual C++ redistributables (2010–2019). |

Organize channels into scan lists so the radio automatically monitors multiple frequencies. Programmable Buttons: Map the physical buttons on the front of the tait tm8115 programming software