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1. Download the most recent firmware locally to your files on your Android Device

   1. Please contact support@vizpin.com to obtain latest Firmware ZIP file

   Download the nRF Toolbox

   1. The firmware should be left as a ZIP file and not extracted

2. Download the Device Firmware Update (developer: Nordic Semiconductor ASA) from the app store https://play.google.com/store/apps/details?id=no.nordicsemi.android.nrftoolbox&hl=en_US&gl=USOpen app and scroll down and select DFU (Device Firmware Upgrade)dfu

3. Open Device Firmware Update app

4. Use paper clip to press down in pinhole for 5 seconds to ready device (should beep when activated)

5. In app, you'll click "Select Device" button at the bottom of the screen

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6. It will scan available devices and you'll select "VIZpin_DFU"

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7. Next you will select "Distribution Packet (ZIP)" as the file type

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8. Next you will select "all" for the scope

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9. Then you will click "Select file" and find the file from step 1 above. You should select the ZIP file itself, not any of the individual files contained within the file.

10. Then click "Upload"

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    Tap on Select to select your firmware ZIP file

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    Navigate to the location on your phone that you saved the firmware ZIP file. Tap on it to select.

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12. Now tap on the Select button to find the device. The device you are looking for will be named VIZpin_DFU. Tap on it to select it.

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13. Once you’ve pointed to the firmware and selected the device to update, tap on Start.

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14. You will see the progress in action and takes less than a minute to cycle through

15. Once completed, the Smart lock should beep again.

16. Wait 30 seconds and press Open on your VIZpin Smart App

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