Update OMI Firmware

• Use the OMI App: Settings > Device Settings > Update Firmware
• Or follow the manual update process below

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Video Tutorial​

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Manual Update Process​

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1. Download Required Files​

1. Bootloader (required for first-time setup or if corrupted):
   • Download bootloader0.9.0.uf2
   • Compatible with Seeed XIAO nRF52840 Sense (SoftDevice S140 7.3.0)
2. Firmware:
   • Go to Omi GitHub Releases
   • Download the .uf2 file marked as Omi_DK
   • Ensure you select the correct version for your device (DK1 or DK2)

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2. Prepare Your Device​

• Ensure device battery is above 50%
• Use a direct USB connection (avoid USB hubs)
• Have a small pin ready for the reset button

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3. Enter DFU Mode​

1. Connect your device via USB
2. Locate the DFU/Reset button:
   • DevKit 2: Remove lid, find button labeled “RST”
   • DevKit 1: Use button shown below
3. Double-click the reset button quickly
4. Your computer should show a drive named /Volumes/XIAO-SENSE

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4. Flash the Device​

1. Install Bootloader (if needed):
   • Drag bootloader0.9.0.uf2 to the /Volumes/XIAO-SENSE drive
   • Wait for the drive to eject automatically
   • Put device back in DFU mode (repeat step 3)
2. Install Firmware:
   • Drag the firmware .uf2 file to the /Volumes/XIAO-SENSE drive
   • Wait for completion (ignore “transfer incomplete” messages)
   • Device will restart automatically

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Troubleshooting​

• If device isn’t recognized: Try a different USB cable or port
• If update fails: Retry the process
• If you see “transfer incomplete”: Wait 30 seconds before checking device status
• For additional help: See DevKit2 Firmware Guide

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Congratulations!​