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-90 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 [MOD] pedal.
The display indicates "FA". - Press the [WRITE] button.
The tuning guide blinks. - Press the [WRITE] button again.
The display blinks while the reset is in progress. Wait for the process to complete.
NOTE: Never turn off the power while the Factory Reset is in progress.