Changes for page Debug NB-IoT Connection
Last modified by Xiaoling on 2024/08/19 16:09
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... ... @@ -5,11 +5,11 @@ 5 5 6 6 (% style="color:blue" %)**1. Check the reason why you can't access the network:** 7 7 8 -1) AT+CEREG=5 8 +(% style="color:#037691" %)**1) AT+CEREG=5** 9 9 10 -2) AT+CEREG? ~/~/ This process may be longer, please repeat the input 10 +(% style="color:#037691" %)**2) AT+CEREG?** (%%) ~/~/ This process may be longer, please repeat the input 11 11 12 -3) Mainly check the two parameters cause_type and reject_case 12 +(% style="color:#037691" %)**3) Mainly check the two parameters (% style="color:red" %)cause_type and (% style="color:red" %)reject_case** 13 13 14 14 15 15 [[image:image-20220530093747-3.png]] ... ... @@ -17,13 +17,13 @@ 17 17 18 18 (% style="color:blue" %)**2. Network access operation:** 19 19 20 -1) AT+CFUN=0 20 +(% style="color:#037691" %)1) AT+CFUN=0 21 21 22 -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 23 23 24 -3) AT+NRB 24 +(% style="color:#037691" %)3) AT+NRB 25 25 26 -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 27 27 28 28 29 29 [[image:image-20220530093821-4.png]]