Hello frends.
We are writing from children Music-School in Uzbekistan.
We have a children's music school and we use electronic pianos Casio production.
Casio PX-350 - 8 pieces
Casio PX-330 - 8 pieces
Within 2 years, 3 musical instruments got problems.
On the first two PX330 series says "please wait", and the other one PX350 there was a loud(noise) background when pressing and holding a note.
In Uzbekistan has no Services Repair Casio production. We drove in 4 Repair shops, due to the fact that we have the technology to reach a very long time, our specialists are not able to repair the electronics of hight level. We called repair shop in Russia, they are were told us that the problem in the software and we must to update or reset the settings through a special program. With so many musical instruments, I think we are entitled to get the program to restore
functionality of casio music intstruments We kindly ask for your help.
With best wishes, Paulina!