CanoScan LiDE 400 won't scan on MacBook Pro

[stickers4eva]

Canon LiDE 400 and macOS Sequoia 15.5

Hello, I recently purchased this scanner brand new and though my MacBook Pro detects it, I can't scan anything. I have tried using other platforms like VueScan but then I keep receiving a warning sign to "Make sure the locking (transport) switch is in the unlocked position" although it is unlocked... 

I have tried registering my device for warranty, but after inputting the serial number it says: 

The serial number you have entered is invalid for one or more of the following reasons:
1) The serial number does not match the product you have selected (FCC ID which starts with “AZD” is often mistaken for serial number.)
2) The serial number entered indicates this product was not intended for sale in the United States and is ineligible for registration and support in the U.S.

I do not know how I am supposed to be able to use my scanner.... Help would be greatly appreciated.

[Patrick]

Hi stickers4eva,

Please contact one of Canon's Sales Representatives via phone.  They will be able to assist you with registering your CanoScan LiDE 400 so you will be able to access your support options.

To do this, please dial 1-800-OK-CANON (1-800-652-2666).

.

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[hattarian]

I have had the exact same problem.  I called Canon help, and the technical support person tried hard to help me to no avail.  I suspect something in the OS is glitching with the LIde400 software.