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55 lines
2.9 KiB
Plaintext
55 lines
2.9 KiB
Plaintext
---
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id: nrf52-erase
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title: Flash nRF52/RP2040 Factory Erase
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sidebar_label: Factory Erase
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sidebar_position: 3
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description: Instructions for factory erasing an nRF52 or RP2040 device.
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---
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import Link from "@docusaurus/Link";
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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 & RP2040 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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:::info
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You may now use the [Meshtastic Web Flasher](https://flasher.meshtastic.org) to Factory Erase your nRF52 or RP2040-based devices. Visit the flasher, select your board, and click the trash can icon to the right of the Flash button. This will open a dialogue to begin the erase procedure.
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Alternatively, follow the instructions below.
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:::
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### nRF52
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To reset the flash storage on your nRF52 board:
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1. Download and unzip the latest firmware from [Meshtastic Downloads](https://meshtastic.org/downloads).
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2. Connect your device to your computer with a USB data cable.
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3. Double click the reset button on your device (this will put it into bootloader mode)
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4. Notice a new drive will be mounted on your computer (Windows, Mac, or Linux)
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5. Open this drive and you should see three files: `CURRENT.UF2`, `INDEX.HTM`, and `INFO_UF2.TXT`
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6. Open the `INFO_UF2.TXT` file with a text editor and note the `SoftDevice` value.
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7. Find the file included in the downloaded firmware matching your softdevice major version number (7.x.x or 6.x.x). Either use `Meshtastic_nRF52_factory_erase_v3_S140_7.3.0.uf2` or `Meshtastic_nRF52_factory_erase_v3_S140_6.3.0.uf2` and copy it onto the new drive. The device should reboot.
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8. With the [Meshtastic CLI](/docs/software/python/cli/) installed, open your Terminal/Console and enter the command: `meshtastic --noproto`.
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9. You should see the message: `Formatting... Done`.
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Once the device has been erased, you can proceed to install the latest Meshtastic firmware on a clean storage filesystem by clicking the link below.
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### RP2040
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To reset the flash storage on your RP2040 board:
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1. Download [flash_nuke.uf2](https://datasheets.raspberrypi.com/soft/flash_nuke.uf2) to your computer.
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2. Press the BOOTSEL button and while keeping it pressed, connect it to your computer via a USB cable.
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3. The board should now appear as a mass storage device on your computer with the label RPI-RP2.
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4. Copy the flash_nuke.uf2 file to the device.
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5. The board will now restart and the flash memory will be erased.
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Once the device has been erased, you can proceed to install the latest Meshtastic firmware on a clean storage filesystem by clicking the link below.
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<div className="indexCtasBody">
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<Link
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className={"button button--outline button--lg cta--button"}
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to={"/docs/getting-started/flashing-firmware/nrf52/"}
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>
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Flash nRF52/RP2040 Firmware
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</Link>
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</div>
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