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119	119	(% id="cke_bm_120427E" style="display:none" %) (%%)
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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.**
	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.
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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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.**
130	130
131		-
132	132	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.
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134	134	[[image:image-20241230154747-14.png||_mstalt="455442" height="695" width="324"]]
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172	172	Follow the steps in order:
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174	174	(% class="wikigeneratedid" %)
175		-① Enter the DUIEI,t
	173	+① Enter the DUIEI,
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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 to match the original frequency of the node,
	179	+③ Select the LoRa frequency,
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)**
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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.)**
	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.)
188	188
189		-[[image:image-20250213142919-1.png||height="428" width="329"]]
	187	+[[image:image-20250111151237-1.png||_mstalt="427752"]]
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	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	+
192	192	(% class="wikigeneratedid" id="H-2" %)
193	193	When the upgrade is complete, it will prompt:"**update successfully**".
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215	215	Then, the Device Tool will automatically open.
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217	217	(% 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" %)
218	218	Follow the steps in order:
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220	220	(% class="wikigeneratedid" %)

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