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1		-XWiki.ting
	1	+XWiki.Xiaoling

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100	100	(% style="color:blue" %)**5. When you click to create things, the certificate download page will pop up**
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103		-**This certificate is very important.** After creating the device, you must download the certificate of the device so that our NB device can connect normally.
	103	+**This certificate is very important.**(%%) After creating the device, you must download the certificate of the device so that our NB device can connect normally.
104	104
105	105	Please download all the following certificates and put them in a folder.
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114	114
115	115	= 4. Connect to AWS using Dragino-NB device =
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117		-
118		-(% id="cke_bm_37736S" style="color:red; display:none" %)** **(% style="color:red" %)**Note: **(%%)In order to avoid problems with certificate writing, you need to set the serial port assistant to automatically add a newline character when sending commands, if there is no such newline character, the certificate written will be invalid.(Using the serial port assistant as an example)
119		-
120		-[[image:image-20240822090554-1.png||height="501" width="656"]]
121		-
122		-
123	123	== 4.1 For -NB /-NS model ==
124	124
125	125	=== 4.1.1 Upgrade the firmware to configure TTS firmware to set the certificate ===
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327	327	==== 4.1.2.4 Re-upgrade the firmware ====
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329	329
330		-After completing the certificate configuration, Burn the [[bootloader>>https://www.dropbox.com/sh/u0uzvvnn58yrie4/AAAvvF_KRveNgmDejzp23ziLa/NB-IoT/Bootloader?dl=0&subfolder_nav_tracking=1]] firmware first, then re-burn the original working [[firmware>>https://www.dropbox.com/sh/u0uzvvnn58yrie4/AACREHllkTe0rATD4ZOqddyga/NB-IoT?dl=0]].
	324	+After the certificate configuration is completed, Re-upgrade to the firmware you originally used.
331	331
332	332
333	333	== 4.2  For -CB /-CS model ==
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350	350	* Update through UART TTL interface : **[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART_Access_for_NB_ST_BC660K-GL/#H4.2UpdateFirmware28Assumethedevicealreadyhaveabootloader29]]**.
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	346	+
	347	+
352	352	=== 4.2.2 Configure certificate ===
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359	359
360	360	==== 4.2.2.1 Configure CA certificate ====
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362		-(% style="color:red" %)**Note:You should select one of the certificates.Either CA1 or CA3 can be used**
363	363
364	364	Please input the certificate in PEM format for the user.
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546	546	(% style="color:blue" %)**AT+DELCLICERT}**
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548		-(% style="color:blue" %)**AT+DELCACERT}**(%%)
549		-(% style="color:blue" %)
	543	+(% style="color:blue" %)**AT+DELCACERT}**
	544	+
550	550
551	551	(% style="color:red" %)**Note: 1.When there is no certificate on the device, a deletion error will be displayed.
552	552	2.When the device already has a certificate, using the command to configure the certificate again will display a configuration error.**
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625	625	[[image:image-20240528175133-19.png||height="563" width="1022"]]
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627	627	[[image:image-20240528175154-20.png||height="752" width="1042"]]
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