How to reset the pedal 25 ME? thank you.

Request the schematic diagrams from Boss.

https://www.boss.info/us/support/by_product/me-25/updates_drivers/
https://www.sweetwater.com/sweetcare/articles/usb-midi-device-not-recognized/
https://sourceforge.net/p/me-edit/discussion/1076568/thread/80898582/
https://sourceforge.net/p/me-edit/discussion/1076569/thread/5930eaa9/
https://www.guitarcenter.com/Boss/ME-80-Guitar-Multi-Effects-Pedal.gc

Often as a not a simple volume pedal will suffice, available as a stand alone item or a feature of an effect pedal like the Boss ME-25

Hi, I can help you with your question. On the face of the effects, towards the right side, there are three settings that can be adjusted: DRIVE, TONE and VOLUME. The VOLUME knob is your master volume. The expression pedal can adjust volume, but it's output volume is controlled by the master VOLUME knob we just identified. I hope this has helped you, and if it has, could you please click on the "helpful" button ? Thank you!

Boss ME-25, use polarity like boss stompbox.
+ voltage at the ring, and - voltage at the center pin, of the adapter
connector.
..
At ME-25 DC socket:

You can make a backup on your pc and load back Default settings or restore to default settings. Normally you should have I quote ' with up to 49 minutes of mono recording time (or 24 minutes in stereo), the RC-50 can function as a song recorder as well as a looper'

I have the RC300 which has 3 hrs recording time. But when i reach the limit. I make a backup and load back in a initial default setup which I have downloaded somewhere. But you can also restore to default from the unit itself. Hope this helps

Is the power supply correct and power plug fully seated into the pedal? Are the other plugs the correct length and firmly seated?

I have the Boss ME 50. Here's things to try. Use wall outlet to power the 25 instead of batteries. Have volume on amp up, volume on pedal all the way up, volume pedal all the way up(depressed), no gain on amp(use clean channel or clean setting if only 1 channel)effects on amp off(reverb, chorus, delay, boost, etc.) mid range knob below 5. only 1 pickup on, guitar tone knob all the way towards treble. If this puts you in the ballpark you can then make slight tweaks to any of these settings. What we're trying to do is not run a dirty sound from the pedal board into an amp with dirty settings. That double dirt often causes a muddy sound. Aside from that you can back off on various effects in the patches. My 50 has a list of the patches and factory settings, so if the drive, for example is set on 8, I might back it off to 4, or the compressor, or the delay, etc. If you like the sound save it. If not continue on. Start with the amp 1st. Higher output tubes(such as JJ's produce a cleaner sound. Also the demo you heard was not coming from your guitar speaker which may not be on the clean side.

Here is a link:http://s3.amazonaws.com/samsontech/related_docs/G1_G1X.pdf Pay attention to page 25 Restoring Factory Defaults.

solution!! you go to "voice" hit the hihat pedal, then press "page" till you get to hhat ofset and bring the value to negative. approx -25. pressure that you applied to hhat pedal becomes less