I am not able to set the Appeui or Appkey via the AT slave software that was provided with the B-L0-72Z-LRWAN1 Kit. Also , i am not able to configure the Data Rate , but AT commands give me OK(Success)

[RKaly.1]

Hi Everyone

We have recently started working with the B-L0-72Z-LRWAN1 Kit , I programmed the AT slave software that was provided with the Kit. The problem faced by me are described below.

1. I am not able to change/modify the APPEUI via the AT commands , When i set the APPEUI via AT command , the command returns OK. Also When i Query the APPEUI (AT+APPEUI=? ) , It gives me the correct result in the output. But when i send the AT+JOIN command , the device Sends the join request to the Old keys(Which are hardcoded in the software by stm) instead of the one that i have set.
2. Similar thing is happening for the Data Rate command as well , If i send the AT+DR=3 and Read with AT+DR=? , It gives out the correct response , but the join request is always Sent at SF12 , instead of the one set by me.

I hope i was clear enough in describing the problem , Kindly help asap.

Thanks and Regards

Rajat