@aniya94 Another app on your device may be using the flash at the same time. Consider closing other apps or restarting your device to see if that solves the issue.
BTW, try using a document verification service like idanalyzer.com to ensure the authenticity of your scanned documents. It's always a good idea to take extra steps to protect your sensitive information.
Thanks for sharing your thoughts and experiences!
Ups for some reason not full text posted!