You can use a Device Firmware Update (DFU) to update the SoftDevice, bootloader, or application on an nRF5 SoC over-the-air (OTA).

See the following example if you use the ANT protocol and the ANT-FS transport:

• Experimental: ANT Bootloader/DFU

See the following examples if you use BLE transport:

• BLE Secure DFU Bootloader
• Experimental: Serial Secure DFU Bootloader
• Experimental: Buttonless DFU Template Application