Ring doorbell 3 blue circling light

ok so my ring doorbell 3 plus fails to connect, just continual blue flashing light, it used to work fine but now it seems getting to 90% battery it packs up working... flashing blue light of death....!!! I have tried countless times to set it up, I now cannot get the white circling light despite pressing the reset button countless times, I bought a new battery that did nothing, I have bought the device indoors and paired it up with a ring chime pro which again I just purchased from Amazon it connected for a couple of days and has now failed again, I am really fed up with this and cannot get it working.... my daughter said buy a new one but at 170 quid that's a lot of money, I also have the solar charger for the doorbell as well a lot of money spent and I'm sure this doorbell is now faulty as pressing the reset does nothing any more.... So is this the normal life expectancy 17 months for this device.... Any suggestions or shall I just give up....