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17	17	|(% style="width:193px" %)PS-LB, SDI-12-LB,|(% style="width:540px" %)(((
18	18	All firmware version
19	19	)))|(% style="width:409px" %)
	20	+|(% style="width:193px" %)LSN50v3|(% style="width:540px" %) |(% style="width:409px" %)
20	20
21	21	= How to do OTA update =
	23	+
	24	+== Required Components ==
	25	+
	26	+* Hardware: [[LA66 USB>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 USB LoRaWAN Adapter User Manual.WebHome]] with [[OTA_firmware>>https://www.dropbox.com/sh/4qnjreg1esxu16i/AADbRjW_tuBP3IIkmf11nSoma?dl=0]] installed.
	27	+* Software: [[OTA_Tool>>https://www.dropbox.com/sh/4qnjreg1esxu16i/AADbRjW_tuBP3IIkmf11nSoma?dl=0]]. Only support Windows now
	28	+
	29	+== Update Steps ==
	30	+
	31	+=== Step1 : Plug LA66 USB to PC and run OTA_Tool. ===
	32	+
	33	+[[image:image-20230114172703-1.png]]
	34	+
	35	+
	36	+== Step2: Set up OTA Tool ==
	37	+
	38	+* **DevEUI**: Input Dev EUI of your sensor
	39	+* **Password**: Passord of your sensor
	40	+* **Port**: Com port of LA66 USB
	41	+* **LoRa_Freq**: Choose the shipped frequency band of your sensor.
	42	+* **Upload_File**: The firmware to be upload to the sensor. make sure the firmware is with surfix _without_bootloader. For example: LHT65N_EU868_v1.5_without_bootloader.
	43	+* **EUI File: **If customer has lots of sensors. He can also import the Dev EUI files and use droplist to choose the sensor to update. Format is as below:
	44	+
	45	+[[image:image-20230114174640-3.png||height="130" width="1169"]]
	46	+
	47	+
	48	+=== Step3: Press Start in OTA Tool and then Press Reset button to restart LA66 USB ===
	49	+
	50	+After press reset button, LA66 USB will restart and broadcast update process with the Dev EUI and Password.
	51	+
	52	+
	53	+=== Step4: Press reset button on the end node, or re-activate the end node. ===
	54	+
	55	+In every reboot/ reactivate, the end node will check if there is update request. If end node gets the update request from LA66. End node will check if the Dev EUI and Password match. If match, End node will establish connection with LA66 USB for OTA update.
	56	+
	57	+
	58	+=== Step5: Check result. ===
	59	+
	60	+Below shows the update successul result.
	61	+
	62	+[[image:image-20230114174134-2.png]]
	63	+
	64	+
	65	+
	66	+= OTA Tool Known Bug: =
	67	+
	68	+~1. If user click "**Start**" but there is issue during update. User may need to close and open the tool again.
	69	+
	70	+
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	73	+