You can download the latest XVR firmware in the following list:
Hilo model
HL-BI2027VMI Download
HL-BI2028F Download
HL-BI2028FDL Download
HL-BI2028FM Download
HL-BI2028FWI Download
HL-BI4028FAD Download
HL-BI5027VM Download
HL-BI5028F Download
HL-BI5028VMAD Download
HL-BI8028FM Download
HL-DI2027VMI Download
HL-DI2028F Download
HL-DI2028FDL Download
HL-DI2028FM Download
HL-DI2028FWI Download
HL-DI2028VM Download
HL-DI4028FAD Download
HL-DI5027VM Download
HL-DI5028F Download
HL-DI5028FM Download
HL-DI5028VMAD Download
HL-DI8028FM Download
HL-DIB2028F Download
HL-PI2025XW Download
HL-PI204XAD Download