Here is the Porsche PIWIS Tester II diagnostic& programming system driver & firmware update instruction by obdii365 technician.
Pre-upgrade caution:
- Make sure your PC get well network connection
- Ensure the Porsche Tester scanner is connected with PC/laptop (do not need to connect with vehicle)
1) Open Porsche PIWIS software, select “Tools” function, click “Device update”
2) Then click “Update” to update Piwis tester driver and firmware
3) VCX Device Firmware Updating. Do not interrupt!!!
4) Update Online Complete. Close the piwis software program.
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