Try cleaning lint out of the USB port

I've tried compressed air. I still suspect mechanical wear. The port is after all, extremely small and intricate and of questionable design.

I don't know if that's enough, there wouldn't be much airflow at the bottom of the port. I've used a needle to clear out the compressed lint stuck at the bottom, and that made it hold the plug much better. But I suppose it could be mechanical, though that hasn't been my experience.

I had the same experience. I thought the USB-C plug was terrible and I was cursing it for being so badly designed. I tried different cables but even the better ones (better in terms of not falling out) eventually would fall out. I then used a pin to mechanically remove the lint from the port and I was amazed at how much came out! After that the plugs went in so much further and are completely secure. Nowadays I don't get so much lint build up, probably because I work from home.

Compressed air will never get it out. It gets really compacted in there. Don't be afraid of using a needle, the port is quite rugged. Just avoid the contacts in the middle.

Thanks for the tip! I will try a needle and see if it helps.

Ah that's fair - I am not a fan of how manufacturers have removed aux ports on phones for exactly this reason. A phone without an aux port is a dealbreaker for me (currently looking for a phone to replace my 4 year old galaxy a8, it's tough to find one as good!)

The Sony Xperia's look good, but they are expensive.