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Changes for page Debug NB-IoT Connection

Last modified by Xiaoling on 2024/08/19 16:09
From version 7.4
edited by Xiaoling
on 2022/07/22 17:01
Change comment: There is no comment for this version
To version 7.1
edited by Xiaoling
on 2022/05/30 10:22
Change comment: There is no comment for this version

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... ... @@ -1,13 +1,11 @@
1 1  = **For BC95-G** =
2 2  
3 -----
4 4  
4 +**~1. Check the reason why you can't access the network:**
5 5  
6 -(% style="color:blue" %)**1. Check the reason why you can't access the network:**
7 -
8 8  1) AT+CEREG=5
9 9  
10 -2) AT+CEREG?  ~/~/This process may be longer, please repeat the input
8 +2) AT+CEREG? ~/~/This process may be longer, please repeat the input
11 11  
12 12  3) Mainly check the two parameters cause_type and reject_case
13 13  
... ... @@ -15,24 +15,21 @@
15 15  [[image:image-20220530093747-3.png]]
16 16  
17 17  
16 +**2. Network access operation:**
18 18  
19 -(% style="color:blue" %)**2. Network access operation:**
20 -
21 21  1) AT+CFUN=0
22 22  
23 -2) AT+NBAND=X  ~/~/X means the local frequency band number
20 +2) AT+NBAND=X ~/~/X means the local frequency band number
24 24  
25 25  3) AT+NRB
26 26  
27 27  4) After waiting for a period of time, you can use AT+CSQ to query the network access
28 28  
29 -
30 30  [[image:image-20220530093821-4.png]]
31 31  
32 32  
29 +**Remarks:**
33 33  
34 -(% style="color:blue" %)**Remarks:**
35 -
36 36  ~1. The operating voltage of the SIM card used must be less than 3.0V
37 37  
38 38  2. The network access time varies with the signal strength