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3	3	{{toc/}}
4	4
5	5
6		-= 1. =
	6	+= 1. Burn the Configure certificate. =
7	7
8		-= 2. =
9	9
	9	+(% style="color:blue" %)**hex firmware.**
10	10
	11	+After burning, the serial port displays as follows：
11	11
	13	+[[image:image-20240520093014-1.png]]
12	12
13	13
14	14
15	15
16	16
	19	+= 2. Configure CA certificate. =
17	17
18	18
	22	+Please input the certificate in PEM format for the user. (The format of the image is entered casually, not in PEM format.)
19	19
	24	+Use the AT command (% style="color:blue" %)**AT+CACERT** (%%)as follows:
20	20
	26	+The following certificates are for free input. Please enter the complete certificate when using them.
21	21
	28	+[[image:image-20240520093355-2.png]]
22	22
	30	+If the configuration succeeds, the message " successfully configured CA certificate " is displayed. Otherwise it is considered configuration failure.
	31	+
	32	+
	33	+
	34	+
	35	+= 3. Configure client certificate. =
	36	+
	37	+
	38	+Use the AT command (% style="color:blue" %)**AT+CLICERT** (%%)as follows：
	39	+
	40	+The following certificates are for free input. Please enter the complete certificate when using them.
	41	+
	42	+[[image:image-20240520095757-3.png]]
	43	+
	44	+Display "Successfully configured client certificate." Configuration successful, otherwise configuration failed.
	45	+
	46	+
	47	+
	48	+
	49	+= 4. Configure client private key. =
	50	+
	51	+
	52	+Use the AT command (% style="color:blue" %)**AT+CLIKEY**(%%), as shown below.
	53	+
	54	+The following certificates are for free input. Please enter the complete certificate when using them.
	55	+
	56	+[[image:image-20240520095936-5.png]]
	57	+
	58	+Display "Successfully configured client private key." If the configuration is successful, otherwise it is considered configuration failure.
	59	+
	60	+
	61	+= 5. burn the xx-NB-GE.bin file. =
	62	+
	63	+
	64	+After the certificate configuration is completed, burn the xx-NB-GE.bin file, which is the official product firmware.
	65	+
	66	+
	67	+
	68	+
	69	+= 6. AT+TLSMOD command =
	70	+
	71	+
	72	+To use the TLS mode certificate function, users need to configure the (% style="color:blue" %)**AT+TLSMOD**(%%) command.
	73	+
	74	+(% style="color:blue" %)**AT+TLSMOD=1,0**(%%) No authentication
	75	+
	76	+(% style="color:blue" %)**AT+TLSMOD=1,1**(%%) Perform server authentication
	77	+
	78	+(% style="color:blue" %)**AT+TLSMOD=1,2**(%%) Perform server and client authentication if requested by the remote server
	79	+
	80	+
	81	+
	82	+
	83	+
	84	+
	85	+
	86	+
	87	+

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