IRB6400 M94A/2.4-150 s

Hi
My name is Vaishnav Kuriyakattil.
I am working on IRB6400 M94A Robot, and when i powered the controller the error that was shown is Axis not commutated(20030) and it was shown to replace the Robot computer or Serial measurement board, so i checked both boards and the battery attached to SMB was dead, and while i was checking the 3.2V battery , i disconnected the cores, so because of that i think, in the pendant it is showing to insert boot disk(1) which i don't have.
So if any one have the Boot disks for the IRB 6400 M94A(Serial number-6400-2942) could you please sent me and this controller has USB slot not the floppy disk slot.
my mail id is: vaishnav@mondrelog.com