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From version < 4.11 >
edited by Xiaoling
on 2022/06/06 15:33
To version < 4.8 >
edited by Xiaoling
on 2022/06/06 15:24
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983 983  
984 984  = 5. Trouble Shooting =
985 985  
986 +1. ​Why I can’t join TTN in US915 / AU915 bands?
986 986  
987 -== 5.1 ​Why I can’t join TTN in US915 / AU915 bands? ==
988 +It is due to channel mapping. Please see the [[Eight Channel Mode>>path:#206ipza]] section above for details.
988 988  
989 -It is due to channel mapping. Please see the [[Eight Channel Mode>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]] section above for details.
990 990  
991 991  
992 -== 5.2 AT Command input doesn’t work ==
992 +1.
993 +11. AT Command input doesn’t work
993 993  
994 994  In the case if user can see the console output but can’t type input to the device. Please check if you already include the **ENTER** while sending out the command. Some serial tool doesn’t send **ENTER** while press the send key, user need to add ENTER in their string.
995 995  
996 996  
997 -== 5.3 Device rejoin in at the second uplink packet ==
998 998  
999 +
1000 +1.
1001 +11. Device rejoin in at the second uplink packet.
1002 +
999 999  **Issue describe as below:**
1000 1000  
1001 1001  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]]
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