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...	...	@@ -248,24 +248,18 @@
248	248	we can use AT Command (AT+CFG) to check the RX1 configure and RX2 configure. as below:
249	249	)))
250	250
251		-(% class="box infomessage" %)
252	252	(((
253		-AT+RX2FQ=869525000 ~-~--> The RX2 Window frequency
	252	+
254	254	)))
255	255
256		-(% class="box infomessage" %)
257	257	(((
258		-AT+RX2DR=3 ~-~--> The RX2 DataRate
259		-)))
260		-
261	261	(% class="box infomessage" %)
262	262	(((
263		- AT+RX1DL=1000 ~-~--> Receive Delay 1
	258	+AT+RX2FQ=869525000     ~-~--> The RX2 Window frequency
	259	+AT+RX2DR=3      ~-~--> The RX2 DataRate
	260	+AT+RX1DL=1000   ~-~--> Receive Delay 1
	261	+AT+RX2DL=2000   ~-~--> Receive Delay 2
264	264	)))
265		-
266		-(% class="box infomessage" %)
267		-(((
268		- AT+RX2DL=2000 ~-~--> Receive Delay 2
269	269	)))
270	270
271	271	(((
...	...	@@ -272,17 +272,13 @@
272	272	**when the device running, we can see below info:**
273	273	)))
274	274
275		-(((
276		-
277		-)))
278		-
279	279	{{{ [12502]***** UpLinkCounter= 0 *****
280	280	[12503]TX on freq 868500000 Hz at DR 0
281	281	[13992]txDone
282		- [15022]RX on freq 868500000 Hz at DR 0 --> RX1 window open at frequency: 868500000, DR0, after 15022-13992= 1030ms of txdone
283		- [15222]rxTimeOut --> no packet arrive in RX1 window. (duration: 200ms)
284		- [15987]RX on freq 869525000 Hz at DR 3 --> RX2 window open at frequency: 869525000, DR3, after 15987-13992= 1995ms of txdone
285		- [16027]rxTimeOut --> no packet arrive in RX2 window. (duration: 40 ms)}}}
	272	+ [15022]RX on freq 868500000 Hz at DR 0 --> RX1 window open at frequency: 868500000, DR0, after 15022-13992= 1030ms of txdone
	273	+ [15222]rxTimeOut --> no packet arrive in RX1 window. (duration: 200ms)
	274	+ [15987]RX on freq 869525000 Hz at DR 3 --> RX2 window open at frequency: 869525000, DR3, after 15987-13992= 1995ms of txdone
	275	+ [16027]rxTimeOut --> no packet arrive in RX2 window. (duration: 40 ms)}}}
286	286
287	287	(((
288	288
...	...	@@ -298,7 +298,7 @@
298	298	[15022]RX on freq 868100000 Hz at DR 0
299	299	[15222]rxTimeOut
300	300	[15987]RX on freq 869525000 Hz at DR 3
301		- [16185]rxDone --> We have got the downstream packet.
	291	+ [16185]rxDone --> We have got the downstream packet.
302	302	Rssi= -64
303	303	Receive data
304	304	1:0012345678}}}
...	...	@@ -378,13 +378,13 @@
378	378
379	379	AT+APPSKEY=00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 11 (End Node App Session Key)
380	380
381		-(((
382	382	[[https:~~/~~/lorawan-packet-decoder-0ta6puiniaut.runkit.sh/?data=40c1190126800100024926272bf18bbb6341584e27e23245&nwkskey=00000000000000000000000000000111&appskey=00000000000000000000000000000111>>url:https://lorawan-packet-decoder-0ta6puiniaut.runkit.sh/?data=40c1190126800100024926272bf18bbb6341584e27e23245&nwkskey=00000000000000000000000000000111&appskey=00000000000000000000000000000111]]
383		-)))
384	384
385	385	[[image:https://wiki.dragino.com/images/7/77/Decrypt_a_LoRaWAN_Packet4.png||alt="Decrypt a LoRaWAN Packet4.png" height="390" width="558"]]
386	386
387		-The FRMPayload is the device payload.
	375	+(((
	376	+ The FRMPayload is the device payload.
	377	+)))
388	388
389	389
390	390	= 8. Why i see uplink 0x00 periodcally on the LHT65 v1.8 firmware =
...	...	@@ -419,24 +419,22 @@
419	419
420	420	= 10. Why i got the payload only with "0x00" or "AA~=~="? =
421	421
422		-* (((
423		-If you are using US915, AU915 and AS923 frequencies.This is normal phenomenon.
424		-)))
	412	+* If you are using US915, AU915 and AS923 frequencies.This is normal phenomenon.
425	425
426	426	(((
427		-When using the frequency mentioned above, the server sometimes adjusts the rate of the node, because the node defaults to the adaptive rate.
	415	+ When using the frequency mentioned above, the server sometimes adjusts the rate of the node, because the node defaults to the adaptive rate.
428	428	)))
429	429
430	430	(((
431		-When the server adjusts your node rate to 0, the maximum payload length is 11 bytes. The server sometimes sends an ADR packet to the node,
	419	+ When the server adjusts your node rate to 0, the maximum payload length is 11 bytes. The server sometimes sends an ADR packet to the node,
432	432	)))
433	433
434	434	(((
435		-and the node will reply to the server after receiving the ADR packet, but the number of payload bytes exceeds the limit,
	423	+ and the node will reply to the server after receiving the ADR packet, but the number of payload bytes exceeds the limit,
436	436	)))
437	437
438	438	(((
439		-so it will send a normal uplink packet, and an additional 00 data packet.
	427	+ so it will send a normal uplink packet, and an additional 00 data packet.
440	440	)))
441	441
442	442	* (((