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1832	1832	**Step1:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
1833	1833	**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1834	1834	**Step3: **Open flashloader; choose the correct COM port to update.
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	1836	+
1835	1835	**For LT-22222-L**:
1836	1836	Hold down the PRO button and then momentarily press the RST reset button and the **DO1 led** will change from OFF to ON. When **DO1 LED** is on, it means the device is in download mode.
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1857	1857
1858	1858	(((
1859	1859	User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
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1861		-
1862	1862	)))
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1867		-
1868	1868	== 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
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1877	1877	(((
1878	1878	(((
1879	1879	Assume we have a LG02 working in the frequency 868400000 now , below is the step.
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1892	1892	(% style="color:red" %)Note: user just need to make sure above three keys match, User can change either in TTN or Device to make then match. In TTN, NETSKEY and APPSKEY can be configured by user in setting page, but Device Addr is generated by TTN.
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1894	1894
	1896	+
1895	1895	(((
1896	1896	(% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
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1898	1898
1899	1899	(((
1900		-(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
1901		-(% style="background-color:#dcdcdc" %)AT+FDR  (%%) Reset Parameters to Factory Default, Keys Reserve
1902		-(% style="background-color:#dcdcdc" %)123456  (%%) Enter Password to have AT access.
1903		-(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%)Set to ABP mode
1904		-(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%)Set the Adaptive Data Rate Off
1905		-(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band)
1906		-(% style="background-color:#dcdcdc" %)AT+TDC=60000  (%%)Set transmit interval to 60 seconds
1907		-(% style="background-color:#dcdcdc" %)AT+CHS=868400000 (%%)Set transmit frequency to 868.4Mhz
1908		-(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%) Set Device Address to 26 01 1A F1
1909		-(% style="background-color:#dcdcdc" %)ATZ                (%%)Reset MCU
	1902	+(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
	1903	+(% style="background-color:#dcdcdc" %)AT+FDR(%%)  Reset Parameters to Factory Default, Keys Reserve
	1904	+(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
	1905	+(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%) Set to ABP mode
	1906	+(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%) Set the Adaptive Data Rate Off
	1907	+(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band)
	1908	+(% style="background-color:#dcdcdc" %)AT+TDC=60000 (%%) Set transmit interval to 60 seconds
	1909	+(% style="background-color:#dcdcdc" %)AT+CHS=868400000(%%)  Set transmit frequency to 868.4Mhz
	1910	+(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%)  Set Device Address to 26 01 1A F1
	1911	+(% style="background-color:#dcdcdc" %)ATZ  (%%) Reset MCU
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1911	1911
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1912	1912	(((
1913	1913	As shown in below:
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