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bayanalbacha wrote:same problem here

What is the exact problem of your keyboard?

Believe it or not, I had an issue like that last week. I changed my power chord and it worked. It might sound stupid but it did the trick. Hopefully the solution to yours is as small as that.

I changed my power chord and it worked. It might sound stupid but it did the trick.

Not really - the PA4X is in standby mode until the mains power is OFF or disconnected so it is very possible that a complete power reset cleared up the problem.

Hi,

After reading these lines now,i can help you with a solution if is not to late.
The solving solution was:
you must take the firmware file from version 02.00 UPD wich has 2,4GB!(not the standard one/and the one wich you need is on korg website)
after you insert the usb it will tell you to calibrate(press INTRO) and after it will see this software.
Wait for the keyboard to check the package,and after don't press nothing,just remove the usb memory!Imediatly it will appear the logo with complete factory restoration!
The entire process takes around ...at least one hour! But it will solve your problem!

Paolo@Korg wrote:Hi Pietia,

You have personal mail.

Paolo

Hello Paulo. I have a problem with my pa4x. I was uploading a BKP file. And the light failed. I tried to turn it on, but it won't start. however I tried to load the oldest OS I found (Pa4X_Operating_System_v220), but it won't boot. I saw that you helped solve a similar problem. can you help me? Thanks in advance.