In our best efforts to provide an excellent service to all of our users, we are here to release a firmware to prevent the following problems for your M3Pro and M5Plus: – The freeze with a red light on – The blocked keyboard – The connection with network and USB flash drive M3 Pro: Please download the firmware. M5 Plus: Please download the firmware. After the upgrade, please reboot the device and check the firmware version in the device info (Menu -> Setting -> Info) to see if the upgrade is successful. If the firmware version hasn’t changed, please kindly follow the instructions and upgrade it again. If the problems still exist with this firmware version, please report the issues to the technical support team. We apologize for any inconvenience this may cause. You can always reach out to us at support@bluedotinfotech.com when you have any questions or concerns.