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...	...	@@ -442,32 +442,61 @@
442	442
443	443	= 11. Why my Dev EUI and APP EUI is 0x000000000000, how to solve? =
444	444
	445	+(((
445	445	It is possible the keys is erased during upgrading of firmware. and the console output shows below after AT+CFG
	447	+)))
446	446
	449	+(((
447	447	AT+APPKEY=00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
	451	+)))
448	448
	453	+(((
449	449	AT+NWKSKEY=00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
	455	+)))
450	450
	457	+(((
451	451	AT+APPSKEY=00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
	459	+)))
452	452
	461	+(((
453	453	AT+APPEUI=00 00 00 00 00 00 00 00
	463	+)))
454	454
	465	+(((
	466	+
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455	455
	469	+(((
456	456	You can get the keys from the box sticker or send mail to Dragino Support to check keys with the provided SN number.
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457	457
	473	+(((
458	458	You can rewrites the keys by running commands in AT Console
	475	+)))
459	459
460		-For example：
	477	+(((
	478	+**For example：**
	479	+)))
461	461
	481	+(((
462	462	AT+APPKEY=85 41 47 20 45 58 28 14 16 82 A0 F0 80 0D DD EE
	483	+)))
463	463
	485	+(((
464	464	AT+NWKSKEY=AA CC B0 20 30 45 37 32 14 1E 14 93 E2 3B 20 11
	487	+)))
465	465
	489	+(((
466	466	AT+APPSKEY=11 23 02 20 30 20 30 60 80 20 20 30 30 20 10 10
	491	+)))
467	467
	493	+(((
468	468	AT+APPEUI=2C 45 47 E3 24 12 23 24
	495	+)))
469	469
	497	+(((
470	470	(Any combination of 16 bit codes can be used）
	499	+)))
471	471
472	472
473	473	(% class="wikigeneratedid" %)