If you have downloaded the R3.53 firmware file (typically a .bin or .zip file) from an official support portal:
If you'd like, I can help you of your specific device or troubleshoot connectivity issues that might be preventing an automatic update. hvt-jmr1040-r3.53 firmware download
If you are looking to update your device, follow these steps to check for or apply a version: If you have downloaded the R3