what is the last update of m30And when we will get new update..??

My phone is M30When i remove  tha charger from my mobile last night ...a message  USB CONNECTOR  CONNECTED  and DISCONNECTED  is showing continuously...i done factory  reset  but still the problem  is not solve...Does anyone  face this same issue..??...

before last update i can use always on display but aftr update it disappeared..why..

j7 prime camera issue its not focus any object and produse blurry images..what should I do?

in my j7 prime 2 why airtel data not working whether other facilities working