Skip to Content

Changes for page Debug NB-IoT Connection

Last modified by Xiaoling on 2024/08/19 16:09
From version 6.1
edited by Xiaoling
on 2022/05/30 09:38
Change comment: There is no comment for this version
To version 7.6
edited by Xiaoling
on 2023/04/21 11:37
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -1,31 +1,35 @@
1 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  
10 +(% style="color:#037691" %)**2) AT+CEREG?**  (%%) ~/~/  This process may be longer, please repeat the input
11 11  
12 +(% style="color:#037691" %)**3) Mainly check the two parameters (% style="color:red" %)cause_type and (% style="color:red" %)reject_case**
13 +
14 +
12 12  [[image:image-20220530093747-3.png]]
13 13  
14 14  
15 -**2. Network access operation:**
18 +(% style="color:blue" %)**2. Network access operation:**
16 16  
17 -1) AT+CFUN=0
20 +(% style="color:#037691" %)1) AT+CFUN=0
18 18  
19 -2) AT+NBAND=X ~/~/X means the local frequency band number
22 +(% style="color:#037691" %)2) AT+NBAND=X  (%%) ~/~/  X means the local frequency band number
20 20  
21 -3) AT+NRB
24 +(% style="color:#037691" %)3) AT+NRB
22 22  
23 -4) After waiting for a period of time, you can use AT+CSQ to query the network access
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
24 24  
28 +
25 25  [[image:image-20220530093821-4.png]]
26 26  
27 27  
28 -**Remarks:**
32 +(% style="color:blue" %)**Remarks:**
29 29  
30 30  ~1. The operating voltage of the SIM card used must be less than 3.0V
31 31