System Parameter settings disappear after power off

[smoke_riffs_everyday333]

Got a rather frustrating problem here, my Axe Fx III started defaulting to my 000 patch and deleting all my midi programming and other parameters. I've reset, powered off, back on, and imported my presets back multiple times and so far nothing has worked. The presets themselves are fine when I power on, but the midi resets to blank every time

 

[Greg Ferguson]

Check the internal button battery. It supplies a tiny bit of power that holds the system settings.

[6] The Axe-Fx III uses a battery for system data backup. Whenever the user changes any global data that data is flushed to battery-backed storage. We use battery-backed SRAM instead of EEPROM or FLASH because it's very fast and unlimited endurance. EEPROM is very slow and there's a risk that the user turns the power off before the flush is finished. FLASH has limited endurance (as well as being slower the SRAM) and there's a risk of wear-out. The battery should last 10 years under normal conditions and is user replaceable.