little issue
Hi!
I just plugged my midi fighter and noticed that one button seem to be stuck. The light is alway open and it doesn’t seem to send any message.
Someone can help me on this?
thx 
Hey man, I had that one too.
I unplugged the thing, squeezed the tabs on the button and popped it out.
It appears that the odd time the prongs casing can recess into the button itself.
This then makes the button jam, usually in the “on” position.
A little push should pop the button back into the correct form, assuming there is nothing blocking the bottom.
Then just plug her back in.
I’d take off the top plate (with the buttons inplace) and see if the light doesn’t turn off, and if anything conductive hasn’t fallen in and is shorting across the contacts.
If it’s clear and the light does go out, suspect the Arcade button. They can be disassembled and you can check the microswitch inside to see if it’s sticky. Try using a different button in that switch to check.
If all those fall through, it’s a PCB issue.
ok thanx I’m going to investigate further!
I tried everything and I think that is a pcb issue… I changed the button and this is alway the same spot that lighting. when all the button are unplugged no light are on.
what do I do 
not a problem but i figured i’d mention it-
if i leave my fighter plugged in to my usb when i restart my laptop one button sticks on but as soon as the laptop finishes booting up it goes off.
maybe a switch issue?
What do you mean by this sorry i’m french and I’m don’t sure I understand what prongs casing mean .
The area surrounding the connectors on the button, basically, the “male” part of the connection.
it was the button that was causing the problem?
Yes.
The button was stuck.
I tried switching the button and it still doing it 
Hey get in contact with product support and have them send you another MF PCB - it must be the clip is shorting onto the PCB when it is expanded by the arcade terminal.
same issue with me too. I have all the buttons off the unit and the light is still on so it can’t be a connection problem.
I think I figured out what has happened with you MF’s guys.
Look at the left clip of the button which always has the led on, carefully look around the edge on the top and bottom side, can you see any copper which has leaked up to the edge of the clip hole?
I noticed one like this on the last batch I made.
It can be fixed by scraping the copper away so it doesnt touch the clip, or just contact sales and have them ship you a replacement.
Sorry I just fixed it by manouvering the button a little bit. No worries. Im loving the midifighter tho! I was only playing around for an hour and I was havin a blast.
Sweet glad you sorted it
argh…seems that i have developed this issue too…after working fine for weeks
tried plugging it in holding the first button…as well as holding the four corners.
when i look at the clip for copper that’s out of place on the stuck (upper, left) button…what i THINK i’m seeing is actually some exposed wire that is meant to be under the PCB coating…it’s just under the left side of the left clip, on the top of the PCB.
i guess i should contact support for a new PCB? 
oh and if this happens to be relevant, that light is lit, with no starting pattern even when there are no buttons plugged into the pcb…
pls halp.
Kelsey7k,
From what you describe it is failing to initiate a usb connection.
Get in touch with product support and they will swap it for a new one