Chosen Solution

So the back cover of my Xiaomi Mi A3 broke today… or rather I broke it, I wanted to ask if you could fix Mi A3s or if you know where I could get it fixed

Hi @alis_grin, ifixit does not do repairs. It hosts a forum where people can get advice on how to fix things themselves. It also supplies parts for mostly Apple products and other popular electronic devices mainly phones and tablets, but unfortunately your particular model is not amongst them. Here’s a video that shows how to remove the back cover from the phone. The parts supplier linked is an example only to show what the part may cost. Search online for Xiaomi Mi A3 back cover replacement to find suppliers that suit you best. If doing the repair yourself seems too daunting, contact a reputable, professional mobile phone repair service and ask for a quote.