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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.
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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.
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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.**
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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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184	184	④ Choose the upgrade file,(% style="color:red" %)**(The firmware upgrade file format only supports .bin files)**
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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.)
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189	189	[[image:image-20250111151237-1.png||_mstalt="427752"]]
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230	230	Then, the Device Tool will automatically open.
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	231	+**For Device Tool version 1.4, the LA66 upgrade supports direct upgrade of firmware. No need to use Tremo Programmer to download.t**
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	233	+(% class="wikigeneratedid" %)
233	233	Follow the steps in order:
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