as I said, the calculators are my passion and a couple of days ago, I bought a ClassPad 300 Plus with OS Ver. 2.20.300.
I tried to install the OS version 3.06.4000 but I failed because the program updater tells me that can proceed only with
the presence of version 3.0.
I have read other threads and trying to understand the process, but obviously, I did not understand what to do specifically.
Some generous Soul, could you please explain the steps I need to do to make this update and what OS I use,
maybe you use the version 3.10.4000 of ClassPad 330 PLUS
If there are difficulties, you can also use my personal email.
Edited by Salvo777, 26 January 2016 - 04:46 PM.