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22 lines
1.5 KiB
Plaintext
22 lines
1.5 KiB
Plaintext
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---
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id: nrf52-erase
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title: Flash NRF52 Factory Erase
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sidebar_label: Factory Erase NRF52
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sidebar_position: 3
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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:
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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 USB data 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. Copy the included file named `Meshtastic_nRF52_factory_erase.uf2` onto the virtual disk device. The device should reboot.
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6. Connect to the device via serial console using the [Meshtastic CLI `--noproto`](/docs/software/python/cli/#--noproto) mode or a standalone serial client like `minicom`.
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7. Press any key, 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 following the [flash firmware](/docs/getting-started/flashing-firmware/nrf52/drag-n-drop#flash-firmware) steps.
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