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Patch for Windows Update KB5094126 issues

On June 9, 2026, Windows Update KB5094126 was introduced and caused TDO to not be able to open the Image Organizer or load Letters module tokens. A fix for this issue is available to download and apply from our website. HOW TO APPLY THE PATCH:... Read More

Letters - creating a QR code

Overview   What Is a QR Code? QR codes, short for "quick response" codes, are square-shaped black-and-white symbols that people can scan using a smartphone to learn more about a product. These encrypted squares can hold links, coupons, event details... Read More

"User or device not authorized to use the service" error

Overview If you have received this error when attempting to use TDO Mobile, it is likely that you are trying to access from a new device. When you change devices, a new PIN will need to be associated with the account inputted in the Setup area. This... Read More

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