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1		-
2		-
3		-
4		-**Table of Contents:**
5		-
	1	+{{box cssClass="floatinginfobox" title="**Contents**"}}
6	6	{{toc/}}
	3	+{{/box}}
7	7
	5	+= Paragraph 1 =
8	8
	7	+Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
9	9
	9	+== Sub-paragraph ==
10	10
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11	11
	13	+== Sub-paragraph ==
12	12
13		-= 1. Introduction =
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14	14
15		-This chapter describes why the password is wrong after upgrading the firmware and what to do about it.
	17	+=== Sub-sub paragraph ===
16	16
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17	17
18		-= 2. Why can't the password access AT command after upgrade(-NB)? =
19	19
	22	+= Paragraph 2 =
20	20
21		-Because the new version of -NB firmware has updated the factory reset function, users can choose to restore all parameters to factory Settings, or keep the password to restore the rest of the parameters to factory Settings.
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22	22
23		-This update changes the password address of the firmware, so the password will be invalid after the customer upgrades from the old version of firmware (without FDR1 function) to the new version of firmware (with FDR1 function).
	26	+== Sub-paragraph ==
24	24
25		-Two different restore factory Settings configurations.
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26	26
27		-(% style="color:blue" %)**AT command:**
	30	+== Sub-paragraph ==
28	28
29		-* (% style="color:#037691; font-weight:bold" %)**AT+FDR**(%%)**       **~/~/ Reset Parameters to Factory Default.
30		-* (% style="color:#037691; font-weight:bold" %)**AT+FDR1**(%%)**     **~/~/ Reset parameters to factory default values except for passwords.(new)
31		-
32		-= 3. Version Confirmation =
33		-
34		-
35		-We are now dividing the **old firmware**(without FDR1 function) with the **new firmware**(with FDR1 function) by whether it contains FDR1 functionality. Please refer to the table:
36		-
37		-(% border="1" style="background-color:#f2f2f2; width:510px" %)
38		-|(% style="background-color:#4f81bd; color:white; width:210px" %)**General Model**|(% style="background-color:#4f81bd; color:white; width:150px" %)(((
39		-**Firmware version**
40		-
41		-**(without FDR1 function)**
42		-)))|(% style="background-color:#4f81bd; color:white; width:150px" %)(((
43		-**Firmware version**
44		-
45		-**(with FDR1 function)**
46		-)))
47		-|(% style="width:210px" %)(((
48		-CPL03-NB, S31-NB, SN50V3-NB, TS01-NB, D20-NB, DS03A-NB, DDS04-NB, DDS45-NB, DDS20-NB, DDS75-NB, LDS12-NB, LDS40-NB, LMS01-NB, MDS120-NB,  MDS200-NB, SE01-NB, SPH01-NB;
49		-)))|(% style="width:150px" %)Before V1.2.1|(% style="width:150px" %)After V1.2.1 (including V1.2.1)
50		-|(% style="width:210px" %)(((
51		-WL03A-NB, SDI-12-NB;
52		-)))|(% style="width:150px" %)Before V1.0.2|(% style="width:150px" %)(((
53		-After V1.0.8 (including V1.0.2)
54		-)))
55		-|(% style="width:210px" %)(((
56		-SW3L-NB, PS-NB;
57		-)))|(% style="width:150px" %)Before V1.0.5|(% style="width:150px" %)(((
58		-After V1.0.5 (including V1.0.5)
59		-)))
60		-|(% style="width:210px" %)RS485-NB|(% style="width:150px" %)Before V1.0.8|(% style="width:150px" %)After V1.0.8 (including V1.0.8)
61		-
62		-= 4. How to solve =
63		-
64		-
65		-Users can manually query the password via STM32CubeProgrammer.
66		-
67		-
68		-== 4.1 UART connection and firmware update methods ==
69		-
70		-
71		-Users can query passwords only using the UART interface via the STM32CubeProgrammer.
72		-
73		-See [[UART Connection>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H2.3UARTConnectionforSN50v3basemotherboard]].
74		-
75		-
76		-update firmware through UART TTL interface : **[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART_Access_for_NB_ST_BC660K-GL/#H4.2UpdateFirmware28Assumethedevicealreadyhaveabootloader29]]**.
77		-
78		-
79		-== 4.2 query the password via STM32CubeProgrammer ==
80		-
81		-
82		-Users can use the password address to query the password through STM32CubeProgrammer.
83		-
84		-* The password address for old firmware(without FDR1 function) : **0x08019000**
85		-* The password address for new firmware(with FDR1 function) : **0x08025D00**
86		-
87		-(% style="color:red" %)**Notice: The password can only be queried after the firmware is run once.**
88		-
89		-
90		-**Procedure for querying the password(old firmware):**
91		-
92		-* After the firmware upgrade is complete, switch back to the FLASH and reset the node to run the new firmware once.
93		-* Then place the switch at the ISP and connect to the STM32CubeProgrammer (same as when burning the firmware).
94		-* Click "Device memory", enter **0x08019000** in "Address", and click "Read"
95		-* Find the 0x08019000 address field and then read the current password as shown in the screenshot below.
96		-
97		-[[image:image-20240827171901-3.png||height="528" width="912"]]
98		-
99		-
100		-**Procedure for querying the password(new firmware):**
101		-
102		-Refer to the old and new firmware division above, and run the firmware first after updating the firmware.
103		-
104		-* After the firmware upgrade is complete, switch back to the FLASH and reset the node to run the new firmware once.
105		-* Then place the switch at the ISP and connect to the STM32CubeProgrammer (same as when burning the firmware).
106		-* Click "Device memory", enter **0x08019000** in "Address", and click "Read"
107		-* Find the 0x08019000 address field and then read the current password as shown in the screenshot below.
108		-
109		-
110		-[[image:image-20240827180414-1.png||height="527" width="910"]]
111		-
112		-
113		-
114		-
115		-
116		-
117		-
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