I need help I have a ender 3 max with a 4.2.4 board but I want to upgrade to a 4.2.7 with the blt sensor but I can’t find the firmware and I suck at coding can someone help me with the bin. File especially Jyers please really need this I have this max for 2 years now and haven’t been able to print anything please help my email is latinlovers1979@gmail.com can send the bin. File there thank you please add your cashapp for a donation