Update needs to steps : 1. mian fw : General/DH_IPC-HX........ 2. AI fw : firmware.bin MOdels : IPC-HF7442FP-Z-S2,IPC-HF7842FP-Z-S2,IPC-HFW7442HP-Z-2712F-DC12AC24V-S2,IPC-HFW7842HP-Z-2712F-DC12AC24V-S2,IPC-HFW7442HP-Z-0832-DC12AC24V-S2,IPC-HFW7842HP-Z-0832-DC12AC24V-S2,IPC-HDBW7442HP-Z-2712F-DC12AC24V-S2,IPC-HDBW7442HP-Z-0832-DC12AC24V-S2,IPC-HDBW7842HP-Z-2712F-DC12AC24V-S2,IPC-HDBW7842HP-Z-0832-DC12AC24V-S2