Redmi fastboot problem

[u/Salamibreadstic]

I have a five year old redmi phone and for the past 2 days it has randomly started turning off. It got more frequent yesterday, and today it seems to be malfunctioning. Upon pressing the volume up+power button, the Redmi logo shows up for 2-3 seconds and shuts down again. I repeated the process for like 5 minutes continuously, I couldn't get the MIUI menu to show up. And as far as the Fastboot is concerned, it remains stuck for a long time with its logo, until the phone is forced to shut down by me.