Install Sim Card - HIKVISION DS-MP5504 Series User Manual

Step 9 Plug the dummy HDD back to the device and then tighten the screws clockwise.
Step 10 Turn the key clockwise to lock dummy HDD.

2.3 Install SIM Card

Purpose:
Pluggable 3G/4G wireless communication module is designed for the device and you should install
the SIM card to realize the wireless communication function.
Before You Start
Prepare the tools and components for installation:
 SIM card
 Wrench
Step 2 Use wrench to unfasten and remove the two screws fixing the 3G/4G and Wi-Fi module.
Step 3 Pull out the 3G/4G and Wi-Fi module.
Mobile Video Recorder Installation Guide
Figure 2-9 Reassemble Dummy HDD
Figure 2-10 Tools
Figure 2-11 Unfasten Screws