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118	118
119	119	(% id="cke_bm_120427E" style="display:none" %) (%%)
120	120
121		-Enter the IMEI (DEV EUI) of the upgraded device, enter the password (PIN), click "SELECT UPGRADE FILE" to find the file you want to upgrade(% style="color:red" %)**(The firmware upgrade file format only supports .bin files)**(%%), and then click "START". While waiting for the upgrade, let the device reset once. If it keeps stopping on the download screen, you can try pressing the reset button of your device.
	121	+Enter the IMEI (DEV EUI) of the upgraded device, enter the password (PIN), click "SELECT UPGRADE FILE" to find the file you want to upgrade(% style="color:red" %)**(The firmware upgrade file format only supports .bin files)**(%%), and then click "START". While waiting for the upgrade, let the device reset once. If it keeps stopping on the download screen, you can try pressing the reset button of your device.**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.**
122	122
123	123	(% style="color:red" %)**Note: The password check function will only take effect if the DRAGINO NB bootloader is v1.3. If the version is earlier than 1.3, whether the password is entered correctly does not affect the NB upgrade.**
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126	126
127	127	(% style="color:red" %)**⑤ **(%%)While waiting for the upgrade, let the device reset once. If it keeps stopping on the download screen, you can try pressing the reset button of your device.
128	128
	129	+**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.**
129	129
	131	+
130	130	In addition, the firmware upgrade supports importing the IMEI upgrade file, manually selecting the IMIE required in the file, and the password (PIN) will be entered automatically.
131	131
132	132	[[image:image-20241230154747-14.png||_mstalt="455442" height="695" width="324"]]
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170	170	Follow the steps in order:
171	171
172	172	(% class="wikigeneratedid" %)
173		-① Enter the DUIEI,
	175	+① Enter the DUIEI,t
174	174
175	175	(% class="wikigeneratedid" %)
176	176	② Enter the PIN (**the PIN is the last 8 bytes of APPSKEY**),
177	177
178	178	(% class="wikigeneratedid" %)
179		-③ Select the LoRa frequency,
	181	+③ Select the LoRa frequency to match the original frequency of the node,
180	180
181	181	(% class="wikigeneratedid" %)
182	182	④ Choose the upgrade file,(% style="color:red" %)**(The firmware upgrade file format only supports .bin files)**
183	183
184	184	(% class="wikigeneratedid" %)
185		-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.)
	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.)**
186	186
187		-[[image:image-20250111151237-1.png||_mstalt="427752"]]
	189	+[[image:image-20250213142919-1.png||height="428" width="329"]]
188	188
189		-(% class="wikigeneratedid" %)
190		-For Device Tool 1.4, the following functions have been added to the LB upgrade:
191	191
192		-(% class="wikigeneratedid" %)
193		-(1) FRE1: display based on Frequency Band;
194		-
195		-(% class="wikigeneratedid" %)
196		-(2) FRE2: provide default value, generally do not modify;
197		-
198		-(% class="wikigeneratedid" %)
199		-(3) Output Power: Drop-down optional 2～22.
200		-
201		-(% class="wikigeneratedid" %)
202		-If there are no special needs, all the above functions do not need to be changed, and the default can be.
203		-
204		-
205	205	(% class="wikigeneratedid" id="H-2" %)
206	206	When the upgrade is complete, it will prompt:"**update successfully**".
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228	228	Then, the Device Tool will automatically open.
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230	230	(% class="wikigeneratedid" %)
231		-**For Device Tool version 1.4, the LA66 upgrade supports direct upgrade of firmware. No need to use Tremo Programmer to download.t**
232		-
233		-(% class="wikigeneratedid" %)
234	234	Follow the steps in order:
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236	236	(% class="wikigeneratedid" %)
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237	237	① Click "SELECT UPGRADE FILE" to choose the firmware to upgrade.
238	238
239	239	(% class="wikigeneratedid" %)
240		-**To ensure the firmware is updated, users must first update the corresponding Bootloader，the bootloader needs to use the Tremo Programmer to download.**
	224	+**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.**
241	241
242	242	(% class="wikigeneratedid" %)
243	243	② Click "START".

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