sms.deleteAll() and sms.deleteAllRead() not working, index not starting at 1 and SMS missing?

[ROdoka]

It seems both functions don't work or I'm doing it wrong:

Serial.println(sms.deleteAll()); and I see a 0 in the serial monitor.
If I delete an SMS using sms.deleteOne(idx); I get a 1 if the SMS with index exists.

While testing this lib I had received 2 SMS but their index was 21 and 22.
What about 0 to 20?
Before switching to this lib I was using just serial communication to do some tests with the SIM800L.
I already had received 2 more SMS before switching, but I don't see them with this lib.
Could it be that the lib uses a different memory location on the module compared to using a new module with just serial com?

Best regards,
Robert

[hmnhghprst]

Hi @ROdoka , When I was using this library I encountered the same issue. You can fix it with this code instead of deleteAll() function :
sms.sendATCommand("AT+CMGDA=\"DEL ALL\"");