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---
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id: flashing-nrf52-devices
title: Flash NRF52 Devices
sidebar_label: NRF52 Device
sidebar_position: 2
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---
import Tabs from '@theme/Tabs';
import TabItem from '@theme/TabItem';
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## Recommended Flashing Method for NRF52 Devices
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If you have RAK NRF based devices or a LilyGO T-Echo, [the drag and drop firmware installation process](/docs/getting-started/flashing-firmware/nrf52/flashing-nrf52) is the easiest solution.
## Convert RAK4631-R to RAK4631
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Running Meshtastic on RAK WisBlock NRF52 based boards relies on the avaliability of the Arduino bootloader.
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This process only needs to be performed once
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 avaliable is the [RAKDAP1](https://store.rakwireless.com/products/daplink-tool).
1. Install [Python](https://www.python.org/downloads/)
2. Install [pyOCD](https://pyocd.io/)
```shell
pip3 install pyocd
```
3. Download the required bootloader: [WisCore_RAK4631_Board_Bootloader.hex](https://github.com/RAKWireless/WisBlock/releases/download/0.4.2/WisCore_RAK4631_Board_Bootloader.hex)
4. Connect the RAKDAP as follows:
[<img src="/img/rak4631-rakdap1.png" style={{zoom:'25%'}} />](/img/rak4631-rakdap1.png)
5. Flash the bootloader
```shell
pyocd flash -t nrf52840 .\WisCore_RAK4631_Board_Bootloader.hex
```
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6. Continue with the [normal instructions](/docs/getting-started/flashing-firmware/nrf52/flashing-nrf52)
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Alternate methods of flashing are outlined [here](https://github.com/RAKWireless/WisBlock/tree/master/bootloader/RAK4630).
