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Changes for page Debug NB-IoT Connection

Last modified by Xiaoling on 2024/08/19 16:09
From version 4.1
edited by Xiaoling
on 2022/05/30 09:37
Change comment: Uploaded new attachment "image-20220530093747-3.png", version {1}
To version 7.6
edited by Xiaoling
on 2023/04/21 11:37
Change comment: There is no comment for this version

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1 -= For BC95-G =
1 += **For BC95-G** =
2 2  
3 -~1. Check the reason why you can't access the network:
3 +----
4 4  
5 -1) AT+CEREG=5
6 6  
7 -2) AT+CEREG? ~/~/This process may be longer, please repeat the input
6 +(% style="color:blue" %)**1. Check the reason why you can't access the network:**
8 8  
9 -3) Mainly check the two parameters cause_type and reject_case
8 +(% style="color:#037691" %)**1) AT+CEREG=5**
10 10  
11 -[[image:https://wiki.dragino.com/images/1/19/BC-95-G1.png||alt="BC-95-G1.png" height="366" width="558"]]
10 +(% style="color:#037691" %)**2) AT+CEREG?**  (%%) ~/~/  This process may be longer, please repeat the input
12 12  
13 -2. Network access operation:
12 +(% style="color:#037691" %)**3) Mainly check the two parameters (% style="color:red" %)cause_type and (% style="color:red" %)reject_case**
14 14  
15 -1) AT+CFUN=0
16 16  
17 -2) AT+NBAND=X ~/~/X means the local frequency band number
15 +[[image:image-20220530093747-3.png]]
18 18  
19 -3) AT+NRB
20 20  
21 -4) After waiting for a period of time, you can use AT+CSQ to query the network access
18 +(% style="color:blue" %)**2. Network access operation:**
22 22  
23 -[[image:https://wiki.dragino.com/images/2/24/BC-95-G2.png||alt="BC-95-G2.png" height="365" width="558"]]
20 +(% style="color:#037691" %)1) AT+CFUN=0
24 24  
25 -Remarks:
22 +(% style="color:#037691" %)2) AT+NBAND=X  (%%) ~/~/  X means the local frequency band number
26 26  
24 +(% style="color:#037691" %)3) AT+NRB
25 +
26 +(% style="color:#037691" %)4) After waiting for a period of time, you can use (% style="color:red" %)AT+CSQ (%%)to query the network access
27 +
28 +
29 +[[image:image-20220530093821-4.png]]
30 +
31 +
32 +(% style="color:blue" %)**Remarks:**
33 +
27 27  ~1. The operating voltage of the SIM card used must be less than 3.0V
28 28  
29 29  2. The network access time varies with the signal strength
image-20220530093821-4.png
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1 +XWiki.Xiaoling
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1 +50.1 KB
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