When you corrected the values on the basic settings page, did you also correct ALL the incorrect values on PAS and throttle before you pressed "write flash"? As I understand it, using "read and write flash" will read/write ALL settings at once, so if you have one on any of the 3 pages out of permitted range NONE will write. I have only ever used the read/write buttons on the left, which only does the settings on the page you are on.