I can’t open CK-12 lessons on my phone, what can I do?

CK-12 supports access through mobile devices, so first try opening the lesson in an up-to-date Chrome, Firefox, or Safari browser with JavaScript enabled.

If the lesson is stuck loading, clear the browser’s cache and cookies, try another browser, and temporarily disable ad blockers or extensions that may interfere with CK-12 content.

If the lesson still will not open, check whether the problem occurs only with a specific assignment or lesson and take a screenshot of any error message.

CK-12 Support asks for the affected page or assignment, your browser and operating system details, and screenshots when investigating access problems.

If you have experienced a similar issue, please feel free to share. You can also file a complaint on Xolvie.