Firmware flasher

If for some reason the Android app can't flash your kv4p HT firmware, you can use this web-based flasher. It's not usually necessary.

• Plug USB C cable from kv4p HT to your computer (your phone's browser won't work)
• Use this online flash tool to install the latest firmware, which requires Chrome, Chromium, or Edge.
• If you don't see a red button below, your browser doesn't support flashing.
• Select the device "CP2102 USB to UART Bridge Controller": Flash firmware v14
Flash firmware v15 (beta users only)
• Device not showing up? You might need to install the CP210x device driver.

Non-volatile storage (NVS) flasher

If you bought a kit, you probably don't need to use this, because the kit vendor would have flashed NVS for you. This permanently stores the PCB version you have in the microcontroller, so it understands the features that are available (such as VHF vs. UHF).