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66	66	* Remote configure parameters via LoRa Downlink
67	67	* Firmware upgradable via program port
68	68
69		-
70	70	== 1.3 Applications ==
71	71
72	72
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77	77	* Smart Cities
78	78	* Smart Factory
79	79
80		-
81	81	== 1.4 Dimension ==
82	82
83	83
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470	470	|(% style="width:184px" %)Send an uplink message|(% style="width:275px" %)(% style="color:green" %)**GREEN LED**(%%) blinks once
471	471	|(% style="width:184px" %)Got a downlink message|(% style="width:275px" %)(% style="color:blue" %)**BLUE LED**(%%) blinks once
472	472
473		-
474	474	= 5. Battery & How to replace =
475	475
476	476	== 5.1 Battery Type and replace ==
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582	582	(% style="color:red" %)**0xA700**(%%) : Equal to AT+DISALARM=0
583	583
584	584
	582	+== 7.4 How to change Sub-Band for LDS02? ==
	583	+
	584	+* **Before v1.6 firmware**: LDS02 works in Subband 2 by default in AU915 / US915 band. So if the LoRaWAN server works in other subband, there will be issue for LWL02 to Join the server. In this case, User can use AT COmmand to change the subband. See AT Command chapther for the hardware connection. Below are the steps to change sub-band:
	585	+** Press rest button.
	586	+** Send **123456** password
	587	+** Send command **AT+CFREQBANDMASK=0001 **( 0001 for subband 1, 0002 for subband 2, etc..)
	588	+** Press rest button to restart to new subband
	589	+** Example output:
	590	+
	591	+(% class="mark small" %)[3369]DRAGINO LWL01 Device
	592	+[3370]Frequency Band: US915 v1.5
	593	+[3373]OTAA
	594	+[3374]DevEui= 7896785455246354
	595	+[3377]class type A
	596	+[3379]freq mode intra
	597	+[3381]**scan chn mask 0x0002   ~-~-> use subband 2**
	598	+
	599	+(% class="mark small" %)LM502:~~# [10793]txDone
	600	+123456       ~-~-> ENTER PASSWORD
	601	+Correct Password
	602	+
	603	+(% class="mark small" %)[105115]rxTimeOut
	604	+**AT+CFREQBANDMASK=0001   ~-~-> Change to Subband1**
	605	+OK
	606	+
	607	+(% class="mark small" %)[3371]DRAGINO LWL01 Device
	608	+[3373]Frequency Band: US915 v1.5
	609	+[3376]OTAA
	610	+[3377]DevEui= 7896785455246354
	611	+[3380]class type A
	612	+[3382]freq mode intra
	613	+[3384]**scan chn mask 0x0001  ~-~-> reboot and works on Subband1 now**
	614	+
	615	+* **Since firmware v1.6: **LWL02 works in chn mask 0x0000. where cover all subbands. so no need to use AT Commands to change subband and it can works for every subband
	616	+
	617	+
	618	+== 7.5 My sensor works for Helium AU915 before but not it doesn't work, Why? ==
	619	+
	620	+It is sub-band issue, See chapter 7.4.Helium Change the Subband for AU915 from subband2 to Subband1 which cause the sensor doesn't work.
	621	+
	622	+
585	585	= 8. Order Info =
586	586
587	587
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599	599	* (% style="color:red" %)**IN865**(%%):  frequency bands  IN865
600	600	* (% style="color:red" %)**CN779**(%%): frequency bands CN779
601	601
602		-
603	603	= 9. Packing Info =
604	604
605	605
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628	628
629	629	* Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
630	630	* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]].
631		-