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iPhone 4s scan crash?

So I'm a substitute teacher who has taken a long-term position for a teacher on maternity leave. She used GradeCam for her classes. I've installed it on my phone and tried testing it -- I can make assignments, set the answer key, etc. But when I go to scan, it says "Accessing scanner" then the whole screen goes to white and DOES NOTHING. I've tried accessing it with the camera closed, with the camera open -- no luck. Gradecam has permission to access the camera in the settings. I'm running iOS 9.3.5. This is supposed to make my life easier and it's turning into a frustration.

Tony Brusate

Official comment


Hi Tony,

 The processing system on an iPhone 4S is much slower and depending on the size of your test, it could take a while - along with being on wifi. 

Do you have a webcam to scan with or a document camera to try and scan the forms?

Have you tried uninstalling and re-installing the app and then powering down?

Thank you,

Donna Fairhurst

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