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72	72	==== 3.1.1.2 Download from the attachment ====
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74		-You can scroll down the page to download Devices. Tool in the attachment or [[click Download>>attach:Devices_1.1.apk]].
	74	+You can scroll down the page to download Devices Tool in the attachment or [[click to download>>attach:Devices_1.1.apk]] directly.
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76	76	[[image:image-20250107094801-1.png||height="169" width="505"]]
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150	150	(% id="cke_bm_120427E" style="display:none" %) (%%)
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152	152	(% _msthash="784" _msthidden="1" _msttexthash="47162089" %)
153		-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, 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.
	153	+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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155	155	(% _msthidden="1" %)
156	156	(% 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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209	209	③ Select the LoRa frequency,
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211	211	(% _msthash="768" _msthidden="1" _msttexthash="1340859" class="wikigeneratedid" %)
212		-④ Choose the upgrade file,
	212	+④ Choose the upgrade file,(% style="color:red" %)**(The firmware upgrade file format only supports .bin files)**
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214	214	(% _msthash="767" _msthidden="1" _msttexthash="12279657" class="wikigeneratedid" %)
215	215	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.)