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edited by Mengting Qiu
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72 72  
73 73  == 3.2 OTA Update Firmware via Mobile Phone + LA66 ==
74 74  
75 +=== 3.2.1 LB series ===
75 75  
77 +* Hardware: LA66 USB
78 +[[image:image-20250214161740-1.png]][[image:image-20250214161758-2.png]]
79 +* Before using LA66 as a firmware burning tool for -LB products, you need to burn OTA_firmware for LA66 first.
80 +* 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.
81 +* Click to get [[bootlooder and OTA_firmware.>>https://www.dropbox.com/scl/fo/ztlw35a9xbkomu71u31im/ALF3WtzilGPi-2nOdtQw1Z4/Utility/Sensor%20Manager%20Utility/OTA_Firmware?dl=0&rlkey=ojjcsw927eaow01dgooldq3nu&subfolder_nav_tracking=1]]
82 +* The firmware burning method refers to the LA66 upgrade below.[[Click to redirect.>>https://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/#H3.1.3.3LA66upgrade]]
76 76  
84 +The LA66 USB connects to the phone via the USB-Type c adapter.
85 +
86 +[[image:image-20250214161844-3.png]]
87 +
88 +
89 +After the connection is successful, the phone will pop up a prompt box, check it and click to confirm.
90 +
91 +(% style="color:red" %)**Note:**
92 +
93 +**Some mobile phone models need to manually enable the OTG function to properly identify external devices.**
94 +
95 +[[image:image-20250214161907-4.png]]
96 +
97 +
98 +(% class="wikigeneratedid" id="H-1" %)
99 +Then, the Device Tool will automatically open.
100 +
101 +(% class="wikigeneratedid" %)
102 +Open the Devices Tool and click on (% _mstmutation="1" style="color:blue" %)**"Upgrade Device"**(%%).
103 +
104 +(% class="wikigeneratedid" %)
105 +Select the device type and click **"LB"**.
106 +
107 +(% class="wikigeneratedid" %)
108 +Follow the steps in order:
109 +
110 +(% class="wikigeneratedid" %)
111 +① Enter the DUIEI,t
112 +
113 +(% class="wikigeneratedid" %)
114 +② Enter the PIN (**the PIN is the last 8 bytes of APPSKEY**),
115 +
116 +(% class="wikigeneratedid" %)
117 +③ Select the LoRa frequency to match the original frequency of the node,
118 +
119 +(% class="wikigeneratedid" %)
120 +④ Choose the upgrade file,(% style="color:red" %)**(The firmware upgrade file format only supports .bin files)**
121 +
122 +(% class="wikigeneratedid" %)
123 +⑤ After pressing the device's reset button, click start.
124 +
125 +(% class="wikigeneratedid" %)
126 +**(If the upgrade does not start for a long time, you can press the device reset button again.**
127 +
128 +(% class="wikigeneratedid" %)
129 +**If the user does not wish to open the casing, they can press and hold the KEY until the device flashes a green light; this action is equivalent to pressing the reset button.)**
130 +
131 +[[image:image-20250214161928-5.png]]
132 +
133 +
134 +(% class="wikigeneratedid" id="H-2" %)
135 +When the upgrade is complete, it will prompt:"**update successfully**".
136 +
137 +[[image:image-20250214161941-6.png]]
138 +
139 +
140 +==== 3.1.3.3 LA66 upgrade ====
141 +
142 +The LA66 USB connects to the phone via the USB-Type C adapter.
143 +
144 +[[image:image-20250214161955-7.png]]
145 +
146 +
147 +After the connection is successful, the phone will pop up a prompt box, check it, and click to confirm.
148 +
149 +(% style="color:red" %)**Note:**
150 +
151 +**Some mobile phone models need to manually enable the OTG function to properly identify external devices.**
152 +
153 +[[image:image-20250214162012-8.png]]
154 +
155 +
156 +(% class="wikigeneratedid" id="H-1" %)
157 +Then, the Device Tool will automatically open.
158 +
159 +(% class="wikigeneratedid" %)
160 +Follow the steps in order:
161 +
162 +(% class="wikigeneratedid" %)
163 +① Click "SELECT UPGRADE FILE" to choose the firmware to upgrade.
164 +
165 +(% class="wikigeneratedid" %)
166 +**In order to ensure that the LA66 USB works properly, make sure that there is a corresponding bootloader before updating the firmware.**
167 +
168 +(% class="wikigeneratedid" %)
169 +**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]].
170 +
171 +(% class="wikigeneratedid" %)
172 +② Click "START".
173 +
174 +(% class="wikigeneratedid" %)
175 +③ Press the reset key on the LA66 device.
176 +
177 +(% class="wikigeneratedid" %)
178 +**For LA66 USB LoRaWAN Adapter v1.2, the design of the reset button has been eliminated on the hardware. **
179 +
180 +[[image:image-20250214162156-13.png]]
181 +
182 +(% class="wikigeneratedid" %)
183 +[[image:image-20250214162029-9.png]]
184 +
185 +When the upgrade is complete, it will prompt:"**update successfully**".
186 +
187 +[[image:image-20250214162110-12.png]]
188 +
189 +
77 77  == 3.3 OTA Update Firmware via PC ==
78 78  
79 79  
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