The Zoom B2.1u is a multi effects unit for the electric bass guitar. The B2 1.u is an upgraded version of the original B2, but with an expression pedal and a USB port. It includes 13 amp and stomp box models and 47 effects, and allows for unusually quick patch changes. It was designed to cover both live and studio use, it comes with a copy of Cubase LE and its stomp box style design means you have access to its features via your feet.
According to several user reviews of Zoom B2.1u Bass Effects Pedal, some users have praised it for the easy to navigate; good bank of presets; Compact Design. But some users also have complained for the amp simulations are not very good.
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To restoring the factory settings of the Zoom B2.1u Bass Effects Pedal, first power on while simultaneously holding the STORE button until “AL” appears on the display. Finally, press STORE button again to start initialization of the program. The Factory Reset procedure is complete.
Warning! This procedure will return all of the settings to the values when the Zoom B2.1u was shipped from the factory. So be sure that you want to do this. Hopefully the article of “Factory Reset Procedure: Zoom B2.1u Bass Effects Pedal” was useful.
Reference: Zoom B2.1u Manual