15
* Describing the LED status when contacting us will help locate
the problem.
Set up APN
If your device is unable to activate, you may need to set up
APN when first time use.
Step 1
- Confirm the SIM card frequency band compatible with
LL02:
LTE Cat 1:B1/B3/B5/B7/B8/B20/B28
GSM: 850/900/1800/1900 MHz
Step 2
- Insert the SIM card into your smartphone and disable the
PIN code.
Green
Always On
Calling
Flicker Quickly (0.3s on,
0.3s off)
GSM Initialization
Flicker Slowly(0.1s on; 3s
off)
GPRS online
Moderate Flicker(1s on; 3s
off)
GPRS connected
successfully
OFF
No GSM signal No
SIM
