Firmware update on Dragino LGT-92 LI EU868

End Devices (Nodes) Dragino
,
1

Hi,

I have a Dragino LGT-92 LI EU868. It had the 1.5.3 firmware version and I managed to connect it to the TTN and all worked very well. Today I’ve wanted to change the firmware to a new version, the newest one 1.6.7 (and later 1.6.4) but the connection to TTN works no more.

This is what I see on the Serial log:


[8153]***** UpLinkCounter= 0 *****
[8552]TX on freq 868100000 Hz at DR 5
[8619]txDone
[13608]RX on freq 868100000 Hz at DR 5
[13636]rxTimeOut
[14614]RX on freq 869525000 Hz at DR 3
[14654]rxTimeOut

All the keys seem to be the same.
Any solutions?

Thank you!

2

These are all the configurations. Keys are hidden.

AT+DEUI=...
AT+DADDR=...
AT+APPKEY=...
AT+NWKSKEY=...
AT+APPSKEY=...
AT+APPEUI=...
AT+ADR=1
AT+TXP=0
AT+DR=0
AT+DCS=0
AT+PNM=1
AT+RX2FQ=869525000
AT+RX2DR=3
AT+RX1DL=1000
AT+RX2DL=2000
AT+JN1DL=5000
AT+JN2DL=6000
AT+NJM=1
AT+NWKID=00 00 00 00
AT+FCU=0
AT+FCD=0
AT+CLASS=A
AT+NJS=0
AT+RECVB=0:
AT+RECV=0:
AT+RJTDC=20
AT+RPL=0
AT+VER=v1.6.4 EU868
AT+HWVER=L70-RL
AT+CFM=0
AT+CFS=0
AT+SNR=0
AT+RSSI=0
AT+ACE=60000
AT+KAT=3600000
AT+FTIME=150
AT+LOGGPS=0
AT+TDC=300000
AT+PORT=2
AT+RX1WTO=6
AT+RX2WTO=9
AT+SGM=1
AT+MD=1
AT+LON=1
AT+MLON=0
AT+PDOP=3.00
AT+NMEA353=0
AT+NMEA886=1
AT+MOD=0
AT+CHS=0
AT+BAT=4031
3

Rather than flagging your own post without explanation, why not mark it as solved, and to help others that may have a similar problem, say what the solution was - which is how this forum works.

4

I’ve managed to solve this. After I got closer to the gateway I could have seen a join request in its Live data but no response. Then I read again the Dragino’s changelog and I saw that starting from 1.6.5 the default authentification mod was changed to OTAA. My node was registered with ABP. I’ve changed AT+NJM from 1 to 0 and it works well now.

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