LED white blinking


Jul 11, 2020
Hi everyone!
About 2 weeks ago my Mi 9 started to shut down randomly. I've made a hard reset and then, ok, back to normally. After 4 days, it shuted down automatic again and it goes dead, no response (stopped recharger e it did not identfy in PC). It have been dead since (maybe about 8 days tottaly dead). Today I've connect the phone to charger and the LED started to blinking in white. 5 minutes after, the battery started to charger normally. Now it full charger and everything seems ok.
Before turn on, I need to know:
- what it means this white bliking?
- theres something to do?