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Add USB DFU to RAK4631 Bootloader update

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linagee 2023-09-18 20:37:41 -06:00
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docs/getting-started/flashing-firmware/nrf52/convert-rak4631r.mdx
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@ -9,6 +9,25 @@ The only difference between the _RAK4631-R_ (RUI3) and the _RAK4631_ (Arduino) i
Meshtastic requires the Arduino bootloader on RAK WisBlock nRF52-based boards. The process of converting the bootloader only needs to be performed once.
Here are two ways to flash the bootloader:
## USB Device Firmware Upgrade (DFU)
1. Install [Python](https://www.python.org/downloads/)
2. Install [adafruit-nrfutil](https://github.com/adafruit/Adafruit_nRF52_nrfutil)
```shell
pip3 install adafruit-nrfutil
```
3. Download the required bootloader: [WisCore_RAK4631_Board_Bootloader.zip](https://github.com/RAKWireless/WisBlock/releases/download/0.4.2/WisCore_RAK4631_Board_Bootloader.zip)
4. Connect your RAK device by USB.
5. Flash the bootloader
```shell
adafruit-nrfutil --verbose dfu serial --package ./WisCore_RAK4631_Board_Bootloader.zip -p /dev/ttyACM0 -b 115200 --singlebank --touch 1200
```
6. Continue with the normal [flashing instructions](/docs/getting-started/flashing-firmware/nrf52/drag-n-drop)
## Debugger
This conversion requires the use of either a [DAPLink](https://daplink.io/) or [J-Link](https://www.segger.com/products/debug-probes/j-link/). The most reasonably priced and available is the [RAKDAP1](https://store.rakwireless.com/products/daplink-tool).
1. Install [Python](https://www.python.org/downloads/)