Prepare
1. USB tool (could get from V-Tek)
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How to update?
Wire as below: (DO NOT CONNECT to PC at FIRST).
Unzip “IX850S“IX850_AutoWriterV3.00.01_2021121015330720220331185716.rar” (MUST UNZIP) and run “AutoWriter.exe”.
When you see below window, “Plug USB and power-on to start programming” , now connect the USB wire to your PC (Don’t need to power up the unit.). After the USB connected, wait for seconds the device will be written automatically.
With below massage the write is finish.
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