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1		-XWiki.Bei
	1	+XWiki.Xiaoling

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27	27
28	28	a. Fill in any name
29	29
	30	+b. Configure the policy you created
30	30
31		-b. Fill in * to Policy action and Policy resource (* stands for all)
	32	+[[image:image-20240528173144-3.png||height="572" width="931"]]
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33		-[[image:image-20250103152135-2.png||height="777" width="1544"]]
34	34
35		-
36	36	c. After clicking to enter the policy configuration page, follow the clicking sequence below to go to the json configuration interface, and then fill in the following fields in the "statement" keyword:
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38	38
39		-**{
40		- "Version": "2012-10-17",
41		- "Statement": [
42		- {
43		- "Effect": "Allow",
44		- "Action": "iot:*",
45		- "Resource": "*"
46		- }
47		- ]
48		-}**
	38	+**{**
49	49
	40	+**~ "Version": "2012-10-17",**
50	50
	42	+**~ "Statement": [**
51	51
52		-[[image:image-20250103151957-1.png||height="529" width="935"]]
	44	+**~ {**
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	46	+**~ "Effect": "Allow",**
	47	+
	48	+**~ "Action": "",**
	49	+
	50	+**~ "Resource": ""**
	51	+
	52	+**~ }**
	53	+
	54	+**~ ]**
	55	+
	56	+**}**
	57	+
	58	+
	59	+[[image:image-20240528173203-4.png||height="517" width="942"]]
	60	+
	61	+
54	54	d. Create this policy
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110	110	(% 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)
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112		-[[image:image-20240822090554-1.png||height="501" width="656"]]
	120	+[[image:image-20240814155410-1.png||height="328" width="563"]]
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114	114
115	115	== 4.1 For -NB /-NS model ==
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319	319	==== 4.1.2.4 Re-upgrade the firmware ====
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321	321
322		-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]].
	330	+After the certificate configuration is completed, Re-upgrade to the firmware you originally used.
323	323
324	324
325	325	== 4.2  For -CB /-CS model ==

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