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89	89	**Procedure for querying the password(old firmware):**
90	90
91		-* After the firmware upgrade is complete, switch back to the FLASH and reset the node to run the new firmware once.
92		-* Then place the switch at the ISP and connect to the STM32CubeProgrammer (same as when burning the firmware).
	91	+* After the firmware upgrade is complete, switch back to the **FLASH** and reset the node to **run the firmware once**.
	92	+* Then place the switch at the **ISP** and connect to the STM32CubeProgrammer (same as when burning the firmware).
93	93	* Click "Device memory", enter **0x08019000** in "Address", and click "Read"
94	94	* Find the 0x08019000 address field and then read the current password as shown in the screenshot below.
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100	100
101	101	Refer to [[the old and new firmware division>>http://wiki.dragino.com/xwiki/bin/view/Why%20can%27t%20the%20password%20access%20AT%20command%20after%20upgrade%28-NB%29%3F/#H3.A0VersionConfirmation]] above, and run the firmware first after updating the firmware.
102	102
103		-* After the firmware upgrade is complete, switch back to the FLASH and reset the node to run the new firmware once.
104		-* Then place the switch at the ISP and connect to the STM32CubeProgrammer (same as when burning the firmware).
105		-* Click "Device memory", enter **0x08019000** in "Address", and click "Read"
106		-* Find the 0x08019000 address field and then read the current password as shown in the screenshot below.
	103	+* After the firmware upgrade is complete, switch back to the **FLASH** and reset the node to **run the new firmware once**.
	104	+* Then place the switch at the **ISP** and connect to the STM32CubeProgrammer (same as when burning the firmware).
	105	+* Click "Device memory", enter **0x08025D00** in "Address", and click "Read"
	106	+* Find the 0x08025D00 address field and then read the current password as shown in the screenshot below.
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108	108	[[image:image-20240827180414-1.png||height="527" width="910"]]
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	112	+= 5. Special case =
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	115	+If the user has never changed the password manually, the user cannot find the valid password through the above two password addresses. In this case, the valid password is still the original password on the node box label (**AT+PIN**).
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	117	+Invalid query screenshot example:
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	119	+[[image:image-20240827181447-4.png||height="519" width="889"]]
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	121	+[[image:image-20240827181431-3.png||height="515" width="892"]]
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