Hello!
I hope this finds you well!

I recently was given a GP3 but I am having some issues...

when i turn it on the display goes to straight blocks(*attached picture)
I tried to Hard Reset but found the standby button to be ?not working?
-it comes on green when powered up but doesn't go RED when I press it to attempt to go into standby.

The daughterboards have been reseated & I have also attempted to start up the unit both with the battery pak removed & the daughterboards as well.

I am not sure what operating system is installed.
(*also with that, I will need a W98 operating system to upgrade -correct?)

Any advice/assistance is graciously welcomed!

-All the best!