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KELTEK Incorporated  |  Sierra Wireless: MG90 Quick-start Guide
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SIERRA MG90

QUICK-START GUIDE

HOW TO INSERT 
A SIM CARD

 

1. Use a #1 Phillips screwdriver to remove the SIM card cover. 

 

2. Slide the SIM card in brass side up until it clicks into place. 

 

3. If you are only using a single cellular plan, the SIM will go into slot A1 

 

4. If you are using dual cellular plans, the SIMs will go into slot A1 and B1 

 

5. Once installed, you may re-attach the cover.

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GENERAL TROUBLESHOOTING:

LED BEHAVIOR

 

  1. Use a #1 Phillips screwdriver to remove the SIM card cover. 

 

  2. Slide the SIM card in brass side up until it clicks into place. 

 

  3. If you are only using a single cellular plan, the SIM will go into slot A1 

 

  4. If you are using dual cellular plans, the SIMs will go into slot A1 and B1 

 

  5. Once installed, you may re-attach the cover.

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