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...	...	@@ -172,13 +172,13 @@
172	172	Follow the steps in order:
173	173
174	174	(% class="wikigeneratedid" %)
175		-① Enter the DUIEI,
	175	+① Enter the DUIEI,t
176	176
177	177	(% class="wikigeneratedid" %)
178	178	② Enter the PIN (**the PIN is the last 8 bytes of APPSKEY**),
179	179
180	180	(% class="wikigeneratedid" %)
181		-③ Select the LoRa frequency,
	181	+③ Select the LoRa frequency to match the original frequency of the node,
182	182
183	183	(% class="wikigeneratedid" %)
184	184	④ Choose the upgrade file,(% style="color:red" %)**(The firmware upgrade file format only supports .bin files)**
...	...	@@ -186,24 +186,9 @@
186	186	(% class="wikigeneratedid" %)
187	187	⑤ After pressing the device's reset button, click start. **(If the upgrade does not start for a long time, you can press the device reset button again.If the user does not wish to open the casing, they can press and hold the KEY until the device flashes a green light; this action is equivalent to pressing the reset button.)**
188	188
189		-[[image:image-20250111151237-1.png||_mstalt="427752"]]
	189	+[[image:image-20250213142919-1.png||height="428" width="329"]]
190	190
191		-(% class="wikigeneratedid" %)
192		-For device tools version 1.4 and above, LB upgrade adds the following features:
193	193
194		-(% class="wikigeneratedid" %)
195		-(1) FRE1: display based on Frequency Band;
196		-
197		-(% class="wikigeneratedid" %)
198		-(2) FRE2: provide default value, generally do not modify;
199		-
200		-(% class="wikigeneratedid" %)
201		-(3) Output Power: Drop-down optional 2～22.
202		-
203		-(% class="wikigeneratedid" %)
204		-If there are no special needs, all the above functions do not need to be changed, and the default can be.
205		-
206		-
207	207	(% class="wikigeneratedid" id="H-2" %)
208	208	When the upgrade is complete, it will prompt:"**update successfully**".
209	209