If your devices have software bugs/ faults, we strongly suggest you submit bugs via "Settings/ Feedback/+ " on your device immediately or via push.boox.com. Most importantly, please make sure that you tick the option "send logs" while sending the Feedback so that we can analyze and diagnose the exact problem better. We will reply to you in 2 working days after you submit the Feedback successfully. You can check the feedback history to see our response. Thanks for your cooperation!