I believe you can only have the alarms on the device you start the sensor with, so if you start it with the Smart Phone then you will have the alarms on there, if you start it with the reader then just the reader will have the alarms.
Additionally, if you want to use both the reader and your phone, you have to start with the reader first. Which then means you cant have alarms on your phone.
Which is why never use reader now, only to test bg. Phone always with me so not big issue, only time it would be is if phone broke, once sensor is started by it you can't use reader at all for scanning, that is something abbott need to sort out.
Of course you can use the reader for scanning if the phone is out of commission. You simply have to use the reader within an hour of starting it with the phone, and both will read the sensor quite happily from that time onwards. Its not something Abbott needs to sort out, it's you who needs to read the instruction book. I do it the other way round, fire the sensor up with the reader then do a reading with the phone, which then tells you that you can use it plus the device you started the sensor with, and that you can't have alarms on the phone. It's just a routine part of sensor changing. Then I can use either, whichever is closer to hand.
Of course you can use the reader for scanning if the phone is out of commission. You simply have to use the reader within an hour of starting it with the phone, and both will read the sensor quite happily from that time onwards.
Its not something Abbott needs to sort out, it's you who needs to read the instruction book.
Well tried that with first libre 2 sensor & reader said it can't be used as started by another device, that was within mins of starting it by phone. Current sensor runs out on tuesday so will try again.