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Last modified by Mengting Qiu on 2025/06/17 09:18
From version 44.1
edited by Mengting Qiu
on 2025/01/22 10:19
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To version 52.1
edited by Mengting Qiu
on 2025/01/22 13:48
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64 64  == 3.1 Required Components ==
65 65  
66 66  
67 -* See FAQ 4.4 for how to update LA66 with the OTA Dongle Firmware.
68 -
67 +* 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]].
69 69  * Software: [[OTA_Tool>>https://www.dropbox.com/scl/fo/9kqeqf6wmet10o9hgxuwa/h?rlkey=4ikrg6kg5v0yjxwhp0i37wrv7&dl=0]]. Only support Windows now
70 70  
71 71  [[image:image-20230513120722-2.png||height="409" width="866"]]
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97 97  
98 98  * (% 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.
99 99  
100 -* (% 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. Format is as below:
99 +* (% 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:
101 101  
102 102  [[image:image-20230114174640-3.png||height="130" width="1169"]]
103 103  
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125 125  [[image:image-20250121093834-4.png]]
126 126  
127 127  
128 -== 3.3 OTA Update Configure ==
129 -
130 -
131 -(% class="mark text-uppercase" %)**Video Instruction:**(%%) ~-~- OTA Upgrade Configure (via LoRa) of LoRaWAN Sensors**: [[https:~~/~~/youtu.be/5XedoNVkbQQ>>https://youtu.be/5XedoNVkbQQ]]**
132 -
133 -OTA Update Configure is good for batch update configure in same type of sensors.
134 -
135 -
136 136  = 4. FAQ =
137 137  
138 -== 4.1 Can i use other devices to connect to PC if i don't have LA66 USB? ==
129 +== 4.1 OTA_Tool supports two upgrade methods for -LB products. ==
139 139  
140 140  
141 -If user doesn't have LA66 USB Adapter, they can still use other Dragino Device to connect to PC for OTA update.
132 +* For OTA_Tool, you can choose to use the OTA upgrade method, refer to the above upgrade steps in this user manual.
142 142  
143 -(% style="color:blue" %)**Steps:**
134 +[[image:image-20250122104151-4.png||height="318" width="673"]]
144 144  
145 -* Find the suitable mode which base on LA66 chip ( All LoRaWAN model with LB or LS suffix , such as SN50v3-LB)
136 +* 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.
146 146  
147 -* Update the LA66 USB OTA firmware to the device.
138 +[[image:image-20250122104131-3.png||height="330" width="674"]]
148 148  
149 -* Connect the device to PC via UART interface.
150 150  
151 -* Make sure power off or update the firmware back to original firmware , because the LA66 USB OTA fimware is not low power consumption firmware. it will consume the battery very fast.
152 -
153 153  == 4.2 Where to find OTA Password? ==
154 154  
155 155  
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178 178  
179 179  Operation instructions: [[Reference for operating procedures.>>https://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/#H3.1.3.3LA66upgrade]]
180 180  
169 +
170 +
181 181  == 4.5 Will OTA update effect the Local LoRaWAN Network. ==
182 182  
183 183  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.
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205 205  RU864;869.3;869.5,869.7
206 206  
207 207  
198 +== 4.6 The old version LA66 is different from the new version LA66. Can OTA_Tool be used for both versions? ==
199 +
200 +
201 +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]]
202 +
203 +[[image:image-20250122134752-6.png||height="288" width="543"]]
204 +
205 +In summary, as long as your LA66 has a boot loader, either LA66 V1 or LA66 V2 can use OTA_Tool.
206 +
207 +
208 +== 4.7 Why can't LA66 burn its own working firmware after it is used for OTA upgrade of -LB products? ==
209 +
210 +
211 +We are sorry for the inadequacy of LA66 for OTA updates in the past.
212 +
213 +* 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**(%%).
214 +
215 +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.
216 +
217 +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.
218 +
219 +[[image:image-20250122113225-5.png||height="336" width="798"]]
220 +
221 +* 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.
222 +
208 208  = 5. OTA Tool Known Bug: =
209 209  
210 210  
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