Hi,
I have just upgraded my IPC-B140H Hikvision cameras (V5.5.3 171221) to Hilook firmware (V5.5.82 190130) using the following firmware file from the portal
Home » portal » Product Firmware » Hilook » IPC » G0 » 5.5.82 190130
IPCHL_G0_EN_STD_5.5.82_190130.zip