My phone won't charge.

Could be your battery is old. I had an iPhone with the same issue after 1 year. I had to replace the phone.

You have to replace the qualcomm power management chip and charging port, I had the same issue and I now diagnosed it.

I’ve tried to charge it using my PC USB port and it really works. Please try this and let me know if it will be helpful for anyone.

I have the same issue replaced my chrging flex but still not charge

UPDATE:

After letting it charge to 100% on the official charger, I played with it a bit to drain the battery (only down to 97%) then plugged it in with a generic charger, and cheapo USB cable, and it’s charging fine. So, anybody else having this problem, I suggest using the official sony quickcharge charger and usb cable that came with your phone, let it charge to 100%, and then use as normal again afterwards.

Original response:

This is the stupidest thing ever, but the fix that worked for me was to use the original sony quickcharge 3.0 charger and the original sony micro usb cable.

I tried different combinations of cables with the original charger. It didn’t start charging again until I used the original cable. It shouldn’t be this hard, and it’s only by dumb luck that I still had the original cable, and charger.

I had exactly the same problem and went through the same steps as OP. Eventually I tried the “simulated battery pull” (hold power + volume down while charger is disconnected) several times and gave up. On another site someone had mentioned that when the light is blue after holding power + volume up, that means it’s charging, so I left it like that overnight, and to my astonishment, it turned on this morning with a 47% charge (this was using the off-brand cable, and generic charger)

I plugged it in again after it powered on, and it vibrated, but the charge symbol isn’t there. Again, only thanks to dumb luck (and never throwing anything away like a dirty hoarder) I stumbled upon the original charger, and thought it was worth a try, so I plugged it in with the same cable I had been using - again it vibrated, and did not charge. So I thought god, everything I have is usb C now, where am I gonna find a micro B cable? to try a different cable, and the first one I found was the original sony cable. I only knew it was the original because it still had the little wrap-around, sticky tag that says, “sony” on it. I plugged it in with the original cable, and charger - the charge symbol came on like nothing was wrong.

I do suspect sony has baked some prorietary BS into the firmware to not allow unofficial chargers / cables to work without the device being connected to the original charger at least once every 50 - 100 charge cycles? I’m going to let it charge to 100%, then try different combinations of chargers, and cables and report back with what works after letting it charge all the way on the official equipment.