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...	...	@@ -314,7 +314,6 @@
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316	316
317		-
318	318	= 6. Downlink Issue ~-~- Packet REJECTED, unsupported frequency =
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...	...	@@ -350,7 +350,6 @@
350	350	**Change to fix frequency:  AT+CHS=904900000**
351	351	**Change to fix DR:  AT+DR=0**
352	352
353		-
354	354	[[image:image-20220526165525-16.png]]
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...	...	@@ -376,7 +376,6 @@
376	376
377	377	AT+APPSKEY=00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 11 (End Node App Session Key)
378	378
379		-
380	380	[[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]]
381	381
382	382	[[image:image-20220526171029-20.png]]
...	...	@@ -388,15 +388,13 @@
388	388
389	389	= 8. Why i see uplink 0x00 periodcally on the LHT65 v1.8 firmware =
390	390
391		-
392	392	Since firmware v1.8, LHT65 will send MAC command to request time, in the case if DR only support max 11 bytes, this MAC command will be bundled to a separate uplink payload with 0x00.
393	393
394	394
395	395	= 9. Why do I see a "MIC Mismatch" error message from the server? =
396	396
397		-
398	398	(((
399		-1)  If the user receives a "MIC Mismatch" message after registering the node on the server.
	394	+1)If the user receives a "MIC Mismatch" message after registering the node on the server.
400	400	)))
401	401
402	402	(((
...	...	@@ -418,14 +418,11 @@
418	418	* (((
419	419	If a node is registered with multiple servers, it may also cause the "mic mismatch" error.
420	420
421		-
422		-
423	423
424	424	)))
425	425
426	426	= 10. Why i got the payload only with "0x00" or "AA~=~="? =
427	427
428		-
429	429	* If you are using US915, AU915 and AS923 frequencies.This is normal phenomenon.
430	430
431	431	(((
...	...	@@ -442,14 +442,11 @@
442	442	* (((
443	443	Some node decoders may not have filtering function, or you need decoders of other servers and formats. Please send an email to [[david.huang@dragino.cc>>mailto:david.huang@dragino.cc]]
444	444
445		-
446		-
447	447
448	448	)))
449	449
450	450	= 11. Why my Dev EUI and APP EUI is 0x000000000000, how to solve? =
451	451
452		-
453	453	(((
454	454	It is possible the keys is erased during upgrading of firmware. and the console output shows below after AT+CFG
455	455	)))
...	...	@@ -480,8 +480,6 @@
480	480
481	481	(((
482	482	You can rewrites the keys by running commands in AT Console
483		-
484		-
485	485	)))
486	486
487	487	(((