Symbol MC9090

How to fix a Symbol MC9090 hand held scanner with a password.

It took a long time to track down the procedures to fix it.

The only way I knew to fix it is to re-install the software.  The software is here: https://docs.symbol.com/downloads/909XCLEANERS.zip.  The instructions are inside the files.

You’ll need an SD card, mine was formatted as FAT, to put the files on.

You will find an SD card slot under the keyboard.  Remove two screws at the top of the keyboard and slide the keyboard down.  Search on www.YouTube.com if you want to see it done.