USB ports not working anymore acer chromebook c720-2848 and we know we had our last update

geminiahbusiness
geminiahbusiness Member Posts: 1 New User
after the last update, none of our mice, wired and Wireless (dong), work anymore in either the USB 2 or 3 port.  the USB printer works (HP), the USB keyboard works (dell),we did not monkey with the system and we went on the internet and found others in the same predicament no one will help us, acer will not let us speak to anyone on their side without money.  we power-washed we reset we have done everything, we found a system log I don't know which one it is cuz we are not technical that said error, permission denied and something about a the device was locked and in use by the kernel system, this is way over our heads we are just average users but very frustrated, I know this has happened to others and I'm sure there is a fix, we tried going back one version with a power wash in that did not help can someone help us please?  we are not familiar with Linux, developer options excetera