How to configure the certificate?

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		6	= 1. Burn the Configure certificate. =
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		9	(% style="color:blue" %)hex firmware.
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		11	After burning, the serial port displays as follows：
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		13	[[image:image-20240520093014-1.png]]
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		19	= 2. Configure CA certificate. =
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		22	Please input the certificate in PEM format for the user. (The format of the image is entered casually, not in PEM format.)
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		24	Use the AT command (% style="color:blue" %)AT+CACERT (%%)as follows:
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		26	The following certificates are for free input. Please enter the complete certificate when using them.
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		28	[[image:image-20240520093355-2.png]]
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		30	If the configuration succeeds, the message " successfully configured CA certificate " is displayed. Otherwise it is considered configuration failure.
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		35	= 3. Configure client certificate. =
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		38	Use the AT command (% style="color:blue" %)AT+CLICERT (%%)as follows：
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		40	The following certificates are for free input. Please enter the complete certificate when using them.
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		42	[[image:image-20240520095757-3.png]]
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		44	Display "Successfully configured client certificate." Configuration successful, otherwise configuration failed.
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		49	= 4. Configure client private key. =
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		52	Use the AT command (% style="color:blue" %)AT+CLIKEY(%%), as shown below.
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		54	The following certificates are for free input. Please enter the complete certificate when using them.
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		56	[[image:image-20240520095936-5.png]]
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		58	Display "Successfully configured client private key." If the configuration is successful, otherwise it is considered configuration failure.
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		61	= 5. burn the xx-NB-GE.bin file. =
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		64	After the certificate configuration is completed, burn the xx-NB-GE.bin file, which is the official product firmware.
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		69	= 6. AT+TLSMOD command =
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		72	To use the TLS mode certificate function, users need to configure the (% style="color:blue" %)AT+TLSMOD(%%) command.
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		74	(% style="color:blue" %)AT+TLSMOD=1,0(%%) No authentication
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		76	(% style="color:blue" %)AT+TLSMOD=1,1(%%) Perform server authentication
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		78	(% style="color:blue" %)AT+TLSMOD=1,2(%%) Perform server and client authentication if requested by the remote server
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