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71	71	Users can query passwords only using the UART interface via the STM32CubeProgrammer.
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73		-See **[[UART Connection>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H2.3UARTConnectionforSN50v3basemotherboard]]**.
	73	+See [[UART Connection>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H2.3UARTConnectionforSN50v3basemotherboard]].
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75		-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]]**.
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	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]]**.
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	78	+
78	78	== 4.2 query the password via STM32CubeProgrammer ==
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99	99	**Procedure for querying the password(new firmware):**
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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	+Refer to the old and new firmware division above, and run the firmware first after updating the firmware.
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103	103	* After the firmware upgrade is complete, switch back to the FLASH and reset the node to run the new firmware once.
104	104	* Then place the switch at the ISP and connect to the STM32CubeProgrammer (same as when burning the firmware).
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105	105	* Click "Device memory", enter **0x08019000** in "Address", and click "Read"
106	106	* Find the 0x08019000 address field and then read the current password as shown in the screenshot below.
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	109	+
108	108	[[image:image-20240827180414-1.png||height="527" width="910"]]
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