Wiki source code of OTA Update Firmware/Configure for Sensors

Version 77.1 by Mengting Qiu on 2025/02/19 10:08

version	line-number	content
8.1	1	Table of Contents:
	2
	3	{{toc/}}
	4
	5
11.2	6
10.2	7	= 1. Overview =
1.1	8
10.2	9
23.1	10	There are some new models of Dragino sensors support OTA update via Private LoRa Protocol, (Even the sensor runs LoRaWAN protocol by default).
1.1	11
23.1	12	User can use the OTA update to update the configure file or firmware to the sensors.
1.1	13
23.1	14
10.2	15	= 2. Support Models =
	16
	17
1.1	18	Here list the models that support OTA Update.
	19
	20	{{velocity}}
	21	$xwiki.ssfx.use("js/xwiki/table/table.css")
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	24
32.2	25	(% border="1" cellspacing="5" class="doOddEven filterable grid sortable" id="tableid" style="background-color:#ffffff; width:670px" %)
	26	(% class="sortHeader" %)\|=(% style="width: 258px; background-color: rgb(217, 226, 243);" %)Models\|=(% style="width: 158px; background-color: rgb(217, 226, 243);" %)Firmware Version\|=(% style="width: 251px;background-color:#D9E2F3" %)Comments
	27	\|(% style="width:258px" %)RS485-LB/LS\|(% style="width:158px" %)All firmware version\|(% style="width:251px" %)
	28	\|(% style="width:258px" %)SN50v3-LB\|(% style="width:158px" %)All firmware version\|(% style="width:251px" %)
	29	\|(% style="width:258px" %)PS-LB-NA\|(% style="width:158px" %)All firmware version\|(% style="width:251px" %)
	30	\|(% style="width:258px" %)TS01-LB/LS\|(% style="width:158px" %)All firmware version\|(% style="width:251px" %)
	31	\|(% style="width:258px" %)CS01-LB\|(% style="width:158px" %)All firmware version\|(% style="width:251px" %)
	32	\|(% style="width:258px" %)AIS01-LB\|(% style="width:158px" %)All firmware version\|(% style="width:251px" %)
	33	\|(% style="width:258px" %)TC01-LB/ TC11-LB\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	34	\|(% style="width:258px" %)LHT65N\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	35	\|(% style="width:258px" %)LHT65N-PIR,LHT65N-E31F\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	36	\|(% style="width:258px" %)D20-LB/D20S-LB/D22-LB/D23-LB\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	37	\|(% style="width:258px" %)S31/S31B-LB/LS\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	38	\|(% style="width:258px" %)AQS01-L\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	39	\|(% style="width:258px" %)UV254-LB\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	40	\|(% style="width:258px" %)SDI-12-LB/LS\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	41	\|(% style="width:258px" %)SE01-LB/LS\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	42	\|(% style="width:258px" %)PS-LB\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	43	\|(% style="width:258px" %)SE02-LB\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	44	\|(% style="width:258px" %)SPH01-LB/LS\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	45	\|(% style="width:258px" %)LMS01-LB/LS\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	46	\|(% style="width:258px" %)WL03A-LB/LS\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	47	\|(% style="width:258px" %)DS03A-LB/LS\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	48	\|(% style="width:258px" %)CPL03-LB/LS\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	49	\|(% style="width:258px" %)SW3L-LB/LS\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	50	\|(% style="width:258px" %)LCC01-LB\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	51	\|(% style="width:258px" %)PS-LB/LS\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	52	\|(% style="width:258px" %)LDS12-LB/LS\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	53	\|(% style="width:258px" %)LDS40-LB/LS\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	54	\|(% style="width:258px" %)DDS75-LB/LS\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	55	\|(% style="width:258px" %)DDS45-LB/LS\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	56	\|(% style="width:258px" %)DDS20-LB/LS\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	57	\|(% style="width:258px" %)DDS04-LB/LS\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	58	\|(% style="width:258px" %)MDS120-LB/LS\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	59	\|(% style="width:258px" %)MDS200-LB/LS\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
	60	\|(% style="width:258px" %)DS20L\|(% style="width:158px" %)All Firmware Version\|(% style="width:251px" %)
2.1	61
10.2	62	= 3. How to do OTA update =
	63
	64	== 3.1 Required Components ==
	65
45.1	66	* See FAQ 4.4 for how to update LA66 with the [[OTA Dongle Firmware>>https://www.dropbox.com/scl/fo/ztlw35a9xbkomu71u31im/AFhmjtEOaipfBAFrpMCoWrI/LoRaWAN%20End%20Node/LA66%20LoRaWAN%20module/Firmware/OTA_Firmware?dl=0&rlkey=ojjcsw927eaow01dgooldq3nu&subfolder_nav_tracking=1]].
29.1	67	* Software: [[OTA_Tool>>https://www.dropbox.com/scl/fo/9kqeqf6wmet10o9hgxuwa/h?rlkey=4ikrg6kg5v0yjxwhp0i37wrv7&dl=0]]. Only support Windows now
7.1	68
16.1	69	[[image:image-20230513120722-2.png\|\|height="409" width="866"]]
7.1	70
14.1	71
57.1	72	== 3.2 OTA Update Firmware via Mobile Phone + LA66 ==
10.2	73
75.1	74	=== 3.2.1 LA66 upgrade ===
10.2	75
75.1	76	The LA66 USB connects to the phone via the USB-Type C adapter.
57.1	77
75.1	78	[[image:image-20250214161955-7.png]]
70.2	79
	80
75.1	81	After the connection is successful, the phone will pop up a prompt box, check it, and click to "OK".
70.2	82
75.1	83	(% style="color:red" %)Note:(%%)Some mobile phone models need to manually enable the OTG function to properly identify external devices.
70.2	84
75.1	85	[[image:image-20250214162012-8.png]]
70.2	86
	87
	88	(% class="wikigeneratedid" id="H-1" %)
70.4	89	Then, the Device Tool will automatically jump to the main interface of the tool.
70.2	90
	91	(% class="wikigeneratedid" %)
75.1	92	In the upper left corner of the main interface of the software, click (% _mstmutation="1" style="color:blue" %)"Upgrade Device"(%%) and select the "(% _mstmutation="1" style="color:blue" %)LaA66"(%%) type.
70.2	93
	94	(% class="wikigeneratedid" %)
75.1	95	[[image:image-20250219095423-2.png]]
70.2	96
	97	(% class="wikigeneratedid" %)
75.1	98	Follow the steps in order:
70.2	99
	100	(% class="wikigeneratedid" %)
75.1	101	① Click "SELECT UPGRADE FILE" to choose the firmware to upgrade.
70.2	102
	103	(% class="wikigeneratedid" %)
75.1	104	② After clicking Start, wait for the LA66 to burn in
70.2	105
	106	(% class="wikigeneratedid" %)
75.1	107	[[image:image-20250214162029-9.png]]
70.2	108
	109	(% class="wikigeneratedid" %)
70.5	110	(% style="color:red" %)Note:
70.2	111
	112	(% class="wikigeneratedid" %)
75.1	113	~1. In order to ensure that the LA66 USB works properly, make sure that there is a corresponding bootloader before updating the firmware.
70.2	114
70.5	115	(% class="wikigeneratedid" %)
75.1	116	2. If you don't have a bootloader, you need to use the "[[Tremo Programmer>>https://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H3.1.3Howtouploadbootloadertodevice3F]]" software to download it. Click to get [[bootlooder>>url:https://wiki.dragino.com/xwiki/bin/download/Main/BLE%20Bluetooth%20Remote%20Configure/WebHome/LoRa_OTA_Bootloader_v1.4.bin?rev=1.1]], then refer to this [[link>>https://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20USB%20LoRaWAN%20Adapter%20User%20Manual/#H1.10.2Updatemethod:A0ForLA66withoutbootloader]] for instructions to burn.
70.5	117
70.2	118
75.1	119	When the upgrade is complete, it will prompt:"update successfully".
70.2	120
75.1	121	[[image:image-20250214162110-12.png]]
70.2	122
75.1	123	=== ===
70.2	124
75.1	125	=== 3.2.2 LB series ===
70.2	126
75.1	127	* Upgrade of external tools: LA66 USB
	128	[[image:image-20250214161740-1.png]][[image:image-20250214161758-2.png]]
	129	* Before using LA66 as a firmware burning tool for -LB products, you need to burn OTA_DONGLE for LA66 first.
	130	* Click to get [[bootlooder and OTA_DONGLE.>>https://www.dropbox.com/scl/fo/ztlw35a9xbkomu71u31im/ALF3WtzilGPi-2nOdtQw1Z4/Utility/Sensor%20Manager%20Utility/OTA_Firmware?dl=0&rlkey=ojjcsw927eaow01dgooldq3nu&subfolder_nav_tracking=1]]
70.2	131
75.1	132	[[image:image-20250219094223-1.png\|\|height="324" width="698"]]
70.2	133
75.1	134	* Refer to Section 3.2.1 to burn OTA DONGLEV1.1 for LA66.
70.2	135
75.1	136	The LA66 USB connects to the phone via the USB-Type c adapter.
70.2	137
75.1	138	[[image:image-20250214161844-3.png]]
70.2	139
	140
75.1	141	After the connection is successful, the phone will pop up a prompt box, check it and click to confirm.
70.2	142
75.1	143	(% style="color:red" %)Note:(%%)Some models of cell phones require the OTG function of the cell phone system to be enabled manually in order to recognize the external device correctly.
70.2	144
75.1	145	[[image:image-20250214161907-4.png]]
	146
	147
70.2	148	(% class="wikigeneratedid" id="H-1" %)
70.5	149	Then, the Device Tool will automatically jump to the main interface of the tool.
70.2	150
	151	(% class="wikigeneratedid" %)
75.1	152	In the upper left corner of the main interface of the software, click (% _mstmutation="1" style="color:blue" %)"Upgrade Device"(%%) and select the LB type.
70.5	153
	154	(% class="wikigeneratedid" %)
70.2	155	Follow the steps in order:
	156
	157	(% class="wikigeneratedid" %)
75.1	158	① Enter the DUIEI,
70.2	159
	160	(% class="wikigeneratedid" %)
75.1	161	② Enter the PIN (the PIN is the last 8 bytes of APPSKEY),
70.2	162
	163	(% class="wikigeneratedid" %)
75.1	164	③ Select the LoRa frequency to match the original frequency of the node,
70.2	165
	166	(% class="wikigeneratedid" %)
75.1	167	④ Choose the upgrade file,(% style="color:red" %)(The firmware upgrade file format only supports .bin files)
70.2	168
	169	(% class="wikigeneratedid" %)
75.1	170	⑤ After pressing the device's reset button, click start.
70.2	171
70.5	172	(% class="wikigeneratedid" %)
75.1	173	(% style="color:red" %)Note:
70.2	174
	175	(% class="wikigeneratedid" %)
75.1	176	~1. (If you are unable to access the upgrade for an extended period of time, you can perform the device reset step again.)
70.2	177
75.1	178	(% class="wikigeneratedid" %)
	179	2. (If the user does not want to open the case, he/she can press and hold the ACT key for 5s until the device flashes green; this action is equivalent to pressing the reset button.)
70.5	180
75.1	181	[[image:image-20250214161928-5.png]]
70.5	182
70.2	183
75.1	184	(% class="wikigeneratedid" id="H-2" %)
	185	When the upgrade is complete, it will prompt:"update successfully".
70.2	186
75.1	187	[[image:image-20250214161941-6.png]]
70.2	188
75.1	189
57.1	190	== 3.3 OTA Update Firmware via PC ==
	191
	192
21.1	193	(% class="wikigeneratedid" %)
24.1	194	(% class="mark text-uppercase" %)Video Instruction:(%%) ~-~- OTA Upgrade Firmware (via LoRa) of LoRaWAN Sensors: [[https:~~/~~/youtu.be/SSvOqvBrwGg>>https://youtu.be/SSvOqvBrwGg]]
21.1	195
	196
30.1	197	=== (% style="color:blue" %)Step1:(%%) Plug LA66 USB to PC and run OTA_Tool. ===
10.2	198
	199
40.1	200	[[image:image-20250121091115-1.png]]
7.1	201
	202
10.2	203	=== (% style="color:blue" %)Step2:(%%) Set up OTA Tool ===
7.1	204
	205
27.1	206	* (% style="color:blue" %)DevEUI(%%): Input DevEUI of your sensor
10.2	207
56.1	208	* (% style="color:blue" %)Password(%%): Passord of your sensor(Last eight bytes/ Last 16 characters of APPSKEY)
10.2	209
	210	* (% style="color:blue" %)Port(%%): Com port of LA66 USB
	211
	212	* (% style="color:blue" %)LoRa_Freq(%%): Choose the shipped frequency band of your sensor.
	213
	214	* (% style="color:blue" %)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.
	215
45.1	216	* (% style="color:blue" %)DEUI_File(%%): If customer has lots of sensors. He can also import the Dev EUI files and use droplist to choose the sensor to update. (If you did not ask us for a uniform update file, then you do not need to use this field, please ignore it.) Format is as below:
10.2	217
7.1	218	[[image:image-20230114174640-3.png\|\|height="130" width="1169"]]
	219
	220
40.1	221	=== (% style="color:blue" %)Step3:(%%) After re-plugging the LA66 USB, click "Start" in the OTA tool. ===
7.1	222
10.2	223
40.1	224	Upon re-plugging, the LA66 USB will reboot and broadcast the update process using the Dev EUI and passcode
7.1	225
	226
10.2	227	=== (% style="color:blue" %)Step4: (%%)Press reset button on the end node, or re-activate the end node. ===
7.1	228
40.1	229	When the OTA Tool displays “LA66 is scanning for sensor Dev EUI ‘(% style="color:blue" %)DevEUI(%%)’. Please reset the sensor for connection and update”, press and hold the ACT button on the terminal node for 5 seconds to perform a terminal node reset so that the OTA Tool can connect successfully.
10.2	230
40.1	231	[[image:image-20250121093705-3.png]]
	232
7.1	233	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.
	234
	235
10.2	236	=== (% style="color:blue" %)Step5:(%%) Check result. ===
7.1	237
10.2	238
7.1	239	Below shows the update successul result.
	240
40.1	241	[[image:image-20250121093834-4.png]]
7.1	242
	243
14.1	244	= 4. FAQ =
7.1	245
50.1	246	== 4.1 OTA_Tool supports two upgrade methods for -LB products. ==
14.1	247
	248
54.1	249	(% style="color:red" %)Note: The premise of using OTA_Tool is that all your devices have bootloaders.
20.2	250
54.1	251	(% style="color:red" %)1. (%%)Only devices with bootloader can perform OTA upgrades(OTA upgrade method).
	252
	253	(% style="color:red" %)2.(%%) This is because the boot loader's address is (% style="color:blue" %)0x08000000(%%), the general functional firmware's address is (% style="color:blue" %)0x0800D000(%%), and burning the firmware through OTA_Tool will only write content to the address (% style="color:blue" %)0x0800D000(%%). So whether you use the OTA_Tool's OTA upgrade method or the UART upgrade method, you can only use it to download firmware without a bootloader, otherwise you will incorrectly place the bootloader at address (% style="color:blue" %)0x08000000(%%).
	254
	255	* For OTA_Tool, you can choose to use the (% style="color:blue" %)OTA upgrade method(%%), refer to the above upgrade steps in this user manual.
	256
50.1	257	[[image:image-20250122104151-4.png\|\|height="318" width="673"]]
20.2	258
50.1	259	* Of course, if you have a USB-TTL adapter, you can also choose to use the [[UART upgrade method>>https://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H3.2UpdateFirmware28Assumethedevicealreadyhaveabootloader29]] via OTA_Tool.
20.2	260
50.1	261	[[image:image-20250122104131-3.png\|\|height="330" width="674"]]
20.2	262
	263
19.1	264	== 4.2 Where to find OTA Password? ==
	265
20.2	266
19.1	267	Each device has a shipped label with OTA Password which is 16 chars. like below. If user don't find this, please send us a photo for the device with Dev EUI to [[support@dragino.com>>mailto:support@dragino.com]] . and we will search the password for you.
	268
	269	[[image:image-20230519102907-2.png\|\|height="286" width="580"]]
	270
	271
20.1	272	== 4.3 How about if i upgrade a crashed firmware via OTA update? ==
19.1	273
20.1	274
20.2	275	OTA update is done via Bootloader and only change the firmware partition. So update a crash firmware via OTA update won't destroy bootloader and user can use OTA method to update again.
20.1	276
20.2	277	(% style="color:red" %)Here are notice:
20.1	278
20.2	279	~1. OTA update frequency depend on the firmware frequency. If there is no frequency in the firmware. Bootloader will use EU868 as default frequency.
20.1	280
20.2	281	2. OTA update require a reset or reactivate action. If the crash firmware doesn't have them work, user need to manuall push the physic reset button on the PCB or power off/on device.
	282
	283
53.1	284	== 4.4 How to update the LA66 OTA Dongle V1.1 via mobile phone? ==
35.1	285
53.1	286
	287	[[image:image-20250122113225-5.png\|\|height="259" width="615"]]
	288
	289	* If you have never downloaded LA66 OTA DongleV1.0 to your LA66, you can directly upgrade the LA66 OTA DongleV1.1 program from your phone using the following method.
	290
43.1	291	[[bootlooder>>url:https://wiki.dragino.com/xwiki/bin/download/Main/BLE%20Bluetooth%20Remote%20Configure/WebHome/LoRa_OTA_Bootloader_v1.4.bin?rev=1.1]] and [[OTA_firmware>>url:https://wiki.dragino.com/xwiki/bin/download/Main/BLE%20Bluetooth%20Remote%20Configure/WebHome/LA66%20OTA%20DONGLE%20v1.1.bin?rev=1.1]].
	292
42.1	293	Tool Download: [[Download link form Dropbox.>>https://www.dropbox.com/scl/fo/gyscmfn1s03oz3n8rif8w/AJW7JoMQsQ56dtlls2SNf9c?rlkey=3q2cxwriyzh26vuairx01yebc&st=be5jv92w&dl=0]]
41.1	294
42.1	295	Operation instructions: [[Reference for operating procedures.>>https://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/#H3.1.3.3LA66upgrade]]
41.1	296
53.1	297	* If you have burned LA66 OTA DONGLE V1.0 for your LA66 according to previously existing instructions. Then you need to re-burn your LA66 boot loader first: [[LA66 USB LoRaWAN Adapter User Manual - DRAGINO>>url:https://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20USB%20LoRaWAN%20Adapter%20User%20Manual/#H1.10.2Updatemethod:A0ForLA66withoutbootloader]]
50.1	298
53.1	299	Please refer to FAQ 4.7 for detailed reasons.
50.1	300
53.1	301
41.1	302	== 4.5 Will OTA update effect the Local LoRaWAN Network. ==
	303
35.1	304	User can configure the OTA_Frequency.txt file to change the Update frequency point so it won't conflict with the general LoRa Frequency. See below for the file as reference and explain. The OTA update also use a none-use SF (SF=5) which won't conflict with the current use SF.
	305
	306	(% class="mark" %)#Define the OTA frequency use for OTA.
	307	#End Node has FRE1 and SF=5. So don't change FRE1 settings
	308	#FRE2 include several frequencies point.
	309	#PC first use FRE1 to create connection to end node, then use one of FRE2 frequencies to process downlink.
	310
	311	(% class="mark" %)#Format:
	312	#Frequency Band;FRE1;FRE2
	313	EU868;869.0;868.7,868.9
	314	IN865;866.9;865.1,865.3
	315	KZ865;866.5;866.1,866.3
	316	KR920;921.7;921.3,921.5
	317	MA869;870.5;870.7,870.9
	318	US915;923.1;923.7,924.1
	319	CN470;505.5;605.7,505.9
	320	AU915;923.7;924.7,925.5
	321	AS923;923.5;923.3,923.7
	322	AS923-2;921.2;921.8,922.0
	323	AS923-3;916.4;917.0,917.2
	324	AS923-4;917.1;917.6,917.8
	325	EU433;434.5;433.9,434.1
	326	RU864;869.3;869.5,869.7
	327
	328
50.1	329	== 4.6 The old version LA66 is different from the new version LA66. Can OTA_Tool be used for both versions? ==
	330
	331
	332	The most obvious hardware difference between LA66 V1 and LA66v2 when burning is the presence of a "RESET "button, and the RESET operation is only for LA66 without a boot loader, you can refer to this link to learn how to upgrade LA66 without a boot loader：[[LA66 USB LoRaWAN Adapter User Manual - DRAGINO>>url:https://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20USB%20LoRaWAN%20Adapter%20User%20Manual/#H1.10.2Updatemethod:A0ForLA66withoutbootloader]]
	333
52.1	334	[[image:image-20250122134752-6.png\|\|height="288" width="543"]]
	335
50.1	336	In summary, as long as your LA66 has a boot loader, either LA66 V1 or LA66 V2 can use OTA_Tool.
	337
	338
	339	== 4.7 Why can't LA66 burn its own working firmware after it is used for OTA upgrade of -LB products? ==
	340
	341
	342	We are sorry for the inadequacy of LA66 for OTA updates in the past.
	343
	344	* In the past, the download address of LA66 OTA DONGLE V1.0 was (% style="color:blue" %)0x08000000(%%), and the address of the bootloader that existed by default when the LA66 was shipped was also (% style="color:blue" %)0x08000000(%%).
	345
	346	Therefore, when you burn OTA_Firmwar v1.0 (LA66 OTA DONGLE v1.0) for the LA66 in order to use the LA66‘s ability to perform OTA upgrades for -LB products, the LA66’s bootloader is overridden.
	347
	348	So if you need to switch back to the LA66's working firmware, you'll need to refer to this [[link>>https://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20USB%20LoRaWAN%20Adapter%20User%20Manual/#H1.10.2Updatemethod:A0ForLA66withoutbootloader]] for instructions to burn firmware with a bootloader for the LA66.
	349
	350	[[image:image-20250122113225-5.png\|\|height="336" width="798"]]
	351
	352	* For the new version of LA66 OTA DONGLE V1.1, we have changed the supported download address to (% style="color:blue" %)0x0800D000(%%) the same as other working firmware addresses, so you can simply use OTA_Tool to burn LA66 OTA DONGLE V1.1 and LA66 working firmware for LA66.
	353
14.1	354	= 5. OTA Tool Known Bug: =
	355
	356
10.2	357	~1. If user click "(% style="color:blue" %)Start"(%%) but there is issue during update. User may need to close and open the tool again.
7.1	358
	359
28.1	360

Wiki source code of OTA Update Firmware/Configure for Sensors

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