Ring Video Doorbell Wired - Questions and Help?

Hi everyone I hope you’re all doing well. I’m a newbie to the world of ring and need a little help please. I’ve bought the Video Doorbell Wired for my parents house and installed it all using the existing chime and transformer with the jumper cable. Initial message I got on set up was that the transformer doesn’t supply enough power. However continued with set up to see if the bell etc all worked. The short answer is yes it does. So do I need to change the transformer still? Or will the bell all work ok? In the app I saw a lightening bolt symbol in left had side of the screen - now does this mean that the bell is hardwired (which it is) or that not enough power due to transformer message that popped up? Finally - the light on the outside is solid white which after some Googling I think is ok as it means set up (however some articles disagree and I can’t find anything on the Ring support website in the ‘What to Know’ section for the video doorbell wired as is available for some of the others) Any help appreciated…I have ordered the Ring Transformer which I can sort on the weekend but appreciate any help/input to above 👍🏼