Shamsfromuzbekistan Posted March 28, 2017 Report Share Posted March 28, 2017 I have a problem with updating o.s with u90 ladder to m91-2-r34, please help Quote Link to comment Share on other sites More sharing options...
Shamsfromuzbekistan Posted March 28, 2017 Author Report Share Posted March 28, 2017 The updating i began and stopped, I mean not finished, bootsrap mode, I have tried another com,pprt but same results, I'm tired Quote Link to comment Share on other sites More sharing options...
Shamsfromuzbekistan Posted March 28, 2017 Author Report Share Posted March 28, 2017 It's 7-8 years old plc, and I can't update o.s with. U90 6.6.28 . Please tell me how can I do it. Quote Link to comment Share on other sites More sharing options...
MVP 2021 Flex727 Posted March 28, 2017 MVP 2021 Report Share Posted March 28, 2017 Contact support@unitronics.com for help with this issue. Quote Link to comment Share on other sites More sharing options...
Shamsfromuzbekistan Posted March 31, 2017 Author Report Share Posted March 31, 2017 Thank you very much, it was bad usb to rs232 converter. It's ok now. Quote Link to comment Share on other sites More sharing options...
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