I have the 3.6mm and 2.8mm versions of the IPC-T5442TM-AS, but they have different firmware's of which the 2.8mm is newer. Do they actually take didn't versions of firmware or is there a newer version for the 3.6mm and I just can't find it?




Um, I gave you a link in my reply to you. Simply click that link and do a search for 5442 and you will find what you are looking for...
His cameras are Dahua if you didn't purchase from him.
Just keep in mind you are updating at your own risk for any firmware not provided by the vendor you purchased from...