Poco India — Issue regarding recent update of poco m3

I have been using poco m3 phone. It's been a year and a month since I bought this phone. Recently there was this software update. Once I updated it, it did not boot. So I visited nearby mi service center they told me that there is motherboard problem and I called the customer care number he said it's not their issue amount is payable. And recently all poco m3 users are facing the same issue I don't know what the hell company is doing. I will never recommend this company to anyone