Updating the firmware on a VIZpin Smartlock can be done using the nRF Toolbox app. Follow the steps below:
Download the most recent firmware locally to your files on your iOS Device
Please contact support@vizpin.com to obtain latest Firmware ZIP file
Download the nRF Toolbox from the app store https://apps.apple.com/us/app/nrf-toolbox/id820906058
Open app and scroll down and select DFU (Device Firmware Upgrade)
Use paper click to press down in pinhole for 5 seconds to ready device (should beep when activated)
In app, you'll click "Connnect" under Connect and update Bluetooth Device
It will scan available devices and you'll select "VIZpin_DFU"
Then you'll browse on your phone to find the file saved from step 1
Then click Update
Once completed, the Smartlock should beep again.
Wait 30 seconds and press Open on your VIZpin Smart App