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141	141
142	142	==== 3.1.3.2 LB series ====
143	143
144		-* Hardware: [[LA66 USB>>url:https://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20USB%20LoRaWAN%20Adapter%20User%20Manual/||_mstmutation="1"]]
145		-* Before using LA66 as -LB product to burn firmware, you need to burn the OTA_ firmware for LA66.
	144	+* Hardware: LA66 USB
	145	+[[image:image-20250213172807-1.png]][[image:image-20250213172928-2.png]]
	146	+* Before using LA66 as a firmware burning tool for -LB products, you need to burn OTA_firmware for LA66 first.
	147	+* If you have never downloaded LA66 OTA DongleV1.0 to your LA66, you can directly upgrade the LA66 OTA DongleV1.1 program from your phone using the following method.
	148	+* [[bootlooder>>url:https://wiki.dragino.com/xwiki/bin/download/Main/BLE%20Bluetooth%20Remote%20Configure/WebHome/LoRa_OTA_Bootloader_v1.4.bin?rev=1.1]] and [[OTA_firmware>>url:https://wiki.dragino.com/xwiki/bin/download/Main/BLE%20Bluetooth%20Remote%20Configure/WebHome/LA66%20OTA%20DONGLE%20v1.1.bin?rev=1.1]].
146	146	* The firmware burning method refers to the LA66 upgrade below.[[Click to redirect.>>https://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/#H3.1.3.3LA66upgrade]]
147	147
	151	+
148	148	The LA66 USB connects to the phone via the USB-Type c adapter.
149	149
150	150	[[image:image-20241207113056-9.png||_mstalt="431366" height="240" width="555"]]
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172	172	Follow the steps in order:
173	173
174	174	(% class="wikigeneratedid" %)
175		-① Enter the DUIEI,
	179	+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,
	185	+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)**
185	185
186	186	(% class="wikigeneratedid" %)
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.)**
	191	+⑤ After pressing the device's reset button, click start.
188	188
189		-[[image:image-20250111151237-1.png||_mstalt="427752"]]
190		-
191	191	(% class="wikigeneratedid" %)
192		-For Device Tool 1.4, the following functions have been added to the LB upgrade:
	194	+**(If the upgrade does not start for a long time, you can press the device reset button again.**
193	193
194	194	(% class="wikigeneratedid" %)
195		-(1) FRE1: display based on Frequency Band;
	197	+**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.)**
196	196
197		-(% class="wikigeneratedid" %)
198		-(2) FRE2: provide default value, generally do not modify;
	199	+[[image:image-20250213142919-1.png||height="428" width="329"]]
199	199
200		-(% class="wikigeneratedid" %)
201		-(3) Output Power: Drop-down optional 2～22.
202	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
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236	236	① Click "SELECT UPGRADE FILE" to choose the firmware to upgrade.
237	237
238	238	(% class="wikigeneratedid" %)
239		-**In order to ensure that the LA66 USB works properly, make sure that there is a corresponding bootloader before updating the firmware. If you don't have a bootloader, you need to use the "Tremo Programmer" software to download it.**
	234	+**In order to ensure that the LA66 USB works properly, make sure that there is a corresponding bootloader before updating the firmware.**
240	240
241	241	(% class="wikigeneratedid" %)
	237	+**If you don't have a bootloader, you need to use the "[[Tremo Programmer>>https://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H3.1.3Howtouploadbootloadertodevice3F]]" software to download it.**
	238	+
	239	+(% class="wikigeneratedid" %)
242	242	② Click "START".
243	243
244	244	(% class="wikigeneratedid" %)

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