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Firmware update guide Process
Follow the Same Process For Dayun Zig Z1 on This Link
1.Download Udisk Tools and Udisk Image
Download URL:- Click Here

Download firmware in Udisk Image folder:
2. How to upgrade the firmware
- Unzip firmware
- Open Udisk tools

- Select the USB driver to be processed:

- Select the action to be performed on the selected usb driver:

- Select the image file to write to the usb driver

- Click the Write button to begin and wait for finish