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34 lines
2.6 KiB
Plaintext
34 lines
2.6 KiB
Plaintext
---
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id: drag-n-drop
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title: Drag & Drop NRF52 Firmware Updates
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sidebar_label: Drag & Drop (recommended)
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sidebar_position: 1
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---
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import Tabs from '@theme/Tabs';
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import TabItem from '@theme/TabItem';
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:::info
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Before flashing confirm that you have [RAK4631](https://docs.rakwireless.com/Product-Categories/WisBlock/RAK4631/) and not a [RAK4631-R](https://docs.rakwireless.com/Product-Categories/WisBlock/RAK4631-R/) If this is not the case, fear not. The hardware is identical but requires changing the bootloader. Instructions on how to do this are located [here](/docs/getting-started/flashing-firmware/nrf52/#convert-rak4631-r-to-rak4631).
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:::
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Download and unzip the latest firmware from [Meshtastic Downloads](https://meshtastic.org/downloads).
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1. Connect your device to your computer with a data USB cable.
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2. Double click the reset button on your device (this will put it into bootloader mode)
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3. Notice a new drive will be mounted on your computer (Windows, Mac, or Linux)
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4. Open this drive and you should see three files: `CURRENT.UF2`, `INDEX.HTM`, and `INFO_UF2.TXT`
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5. Drop the appropriate appropriate `firmware-DEVICE_NAME-vx.x.x-xxxxxxx.uf2` file from the release you want to install onto this drive
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Once the file has finished copying onto the drive, the device will reboot and install the Meshtastic firmware.
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:::caution
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If you're upgrading your NRF52 device from a previous version of Meshtastic rather than starting from scratch, you may need to do a full factory reset of the internal flash memory. Stale data saved by previous versions of the Meshtastic firmware can cause devices to get stuck in a crash loop at startup.
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:::
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Meshtastic uses the [littlefs](https://github.com/littlefs-project/littlefs) library to store configuration, logs, and other data in the internal flash of NRF52 devices. Updating the firmware does _not_ erase this additional data, which can cause issues when the format and location of data changes between releases.
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To reset the flash storage on your NRF52 board, first follow steps 1-4 above. At step 5, copy the included file named `Meshtastic_nRF52_factory_erase.uf2` onto the virtual disk device instead of a `firmware-DEVICE_NAME...` binary. After the device resets, connect to it via serial console using the [Meshtastic CLI `--noproto`](/docs/software/python/cli/#--noproto) mode or a standalone serial client like `minicom`. When you connect to the serial console, press any key; you should see the message `Formating ... Done`.
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Once the flash is erased you can use steps 2-5 above to re-install the latest Meshtastic firmware on a clean storage filesystem.
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