Roland JX-305 update OS to 1.07

Fix Blocks Only on Display when turned on and won't boot

How to check your current OS and update to 1.07

Service Manual:
https://www.synthxl.com/wp-content/uploads/2018/04/Roland-JX-305-Service-Notes.pdf

Operating System Download
https://mega.nz/file/JFxj1RaA#dws3vGyemYiLWfJf0O7VY0nNxlc33CsIYyskFnYsops

BomeSendSX
https://www.bome.com/products/sendsx