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Hello,

I have a PTC that is currently at 1.5 for HDX series and I am trying to upgrade it to 4.2.0 for Group series.

I have a Group 500 that is currently at 4.2.0, I have tried to update the PTC using a USB  stick.

This did not change the software so that I can pair it with my group 500. The PTC has hardware version 5

is this possible?

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