To restore the ME-90 to its default factory settings, follow the procedure below.
Note: Back up your user patches to BOSS TONE STUDIO for ME-90B before performing a Factory Reset. All user data (patches, tuner reference pitch, system settings, etc.) will be erased.
- Press the [MEMORY/MANUAL] pedal to switch to manual mode.
- Hold down the [CTL] button and press the [DRV/SYN] pedal.
The display indicates “FA”. - Press the [WRITE] button.
The tuning guide blinks. - Press the [WRITE] button again.
The display blinks, and the factory reset is executed.
* Never turn off the power while the factory reset is in progress.