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578		-== 2.7  ​Firmware Change Log ==
	578	+== 2.7  Installation in Soil ==
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	580	+__**Measurement the soil surface**__
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581		-Download URL & Firmware Change log
	582	+(((
	583	+Choose the proper measuring position. Avoid the probe to touch rocks or hard things. Split the surface soil according to the measured deep. Keep the measured as original density. Vertical insert the probe into the soil to be measured. Make sure not shake when inserting. [[https:~~/~~/img.alicdn.com/imgextra/i3/2005165265/O1CN010rj9Oh1olPsQxrdUK_!!2005165265.jpg>>url:https://img.alicdn.com/imgextra/i3/2005165265/O1CN010rj9Oh1olPsQxrdUK_!!2005165265.jpg]]
	584	+)))
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	586	+[[image:1657259653666-883.png]] ​
	587	+
	588	+
583	583	(((
584		-[[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/Firmware/>>url:https://www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/Firmware/]]
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	591	+
	592	+(((
	593	+Dig a hole with diameter > 20CM.
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	596	+(((
	597	+Horizontal insert the probe to the soil and fill the hole for long term measurement.
	598	+)))
	599	+)))
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	601	+[[image:1654506665940-119.png]]
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	603	+(((
	604	+
	605	+)))
	606	+
	607	+
	608	+== 2.8  ​Firmware Change Log ==
	609	+
	610	+
	611	+Download URL & Firmware Change log
	612	+
	613	+[[www.dragino.com/downloads/index.php?dir=NB-IoT/NSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=NB-IoT/NBSN50/Firmware/]]
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	615	+
588	588	Upgrade Instruction: [[Upgrade_Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
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