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	1	+XWiki.Xiaoling

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

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