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Last modified by Xiaoling on 2023/04/24 08:49
From version 5.2
edited by Xiaoling
on 2022/07/22 17:06
Change comment: There is no comment for this version
To version 4.1
edited by Xiaoling
on 2022/05/30 09:46
Change comment: There is no comment for this version

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3 3  When you use NB-IoT module and run the command AT+CSG=99,99. It means the device doesn't attached to the NB-IoT network. If attached to network, the first 99 should be 2~~31.
4 4  
5 5  (((
6 -Below is the definition for the (% style="color:blue" %)**AT+CSQ**
4 +Below is the definition for the **AT+CSQ**
7 7  )))
8 8  
9 9  [[image:image-20220530094441-1.png]]
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11 11  CSQ Definition
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12 +In this case, you can check:
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15 -(% style="color:red" %)**In this case, you can check:**
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17 17  * Whether the antenna connection is good.
18 18  * Whether you use a valid SIM Card
19 19  * Whether you the SIM card place correctly.
20 20  * Whether the NB-IoT Network you use match the End Device Module support network.
21 21  * Whether you have select the correct band for your operator. See [[Specify_NB-IoT_Band>>doc:Main.Specify NB-IoT Band.WebHome]]
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