I am trying to send SMS-COMMAND PDU which should delete previously submitted message in SMSC. The modem is responding with +CMS 500 error which means invalid PDU mode.
the setup i am using - huawei modem
- AT+CMGF=0
- AT+CMGS=14
with PDU in bytes
00220000029E0C9124917091558500
the message number is set for the reference number previously submitted message.
modem is responding with +CMS 500. I cannot make this work so any advice would be appreciated. Thank you
