I got a new (not used ) H9 core yesterday and it worked correctly first.
But today when I connected the power the screen was stuck in “UPDATE”
I first tried using iPad hope to update it but it said the pedalbox is not responding.
I have tried use iPhone 6 and USB connect windows PC & Mac but it didn’t work.
When I use USB(Mac & PC) the H9 core screen would change to “READY” but it was still stuck.
I have tried holding HOTKNOB + right switch and it show “CLEAR” but the problem existed as well.
The version is 5.2.0 when I got it.
Thanks for help. I really need it working.