LTE-LINK SE user's Guide
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6 Failure analysis and troubleshooting
This chapter will list the frequently occurring situations when users use the device and the
corresponding solutions. If there are situations not those listed below, please consult relevant
technical personnel to solve the problem. Similarly, in the subsequent revision of the document,
we will also Supplementary solutions to related problems.
6.1 Network and server connection
Screen interface status message display
“
sim not found
”
The SIM card is not inserted in the current link device or the SIM card currently
inserted is invalid.
The troubleshooting method is as follows
：
Confirm the network usage of the inserted SIM card;
Confirm that the SIM card is correctly inserted into the SIM card slot;
Check whether the device Micro SIM card slot device is damaged;
Check according to chapter 4.2.5 LTE light status
；
Figure 6- 1
The screen interface status message display has been paused in
“
sim net register
”
The current link device repeatedly tries to register the public network of the SIM card.
The troubleshooting method is as follows
：
Ensure whether the signal antenna is connected;
Ensure whether the connected signal antenna is damaged;
The current network environment of the device does not support 4G network or the
