[Android Q&A, Help & Troubleshooting] catfinger:
Hi guys I hope you can help.

I AM OFFERING A REWARD OF £10 GBP TO THE FIRST PERSON WHO SUCCESSFULLY ADVISES OF THE RIGHT FIX FOR THIS ISSUE *.​

There, now I have your attention - brace yourself, this one’s a tough one.

About 2 months ago, I flashed DeltaROM 4.2.2 V2.2. I’m a serial flasher so I’m quite aware of what I’m doing. I had some issues with it that I tried to get support from them but they unfortunately didn't get back to/couldn't help me.

The original post is here in case you’re interested, the biggest issue being my S3 no longer charges correctly. If I plug a charger in from the mains, it will not register as charging. Once every 10 seconds or so, it will actually register the charger, but only for about half a second before it drops. It DOES however charge if I connect it to PC, Xbox or car (only wrks in the car if charging from a USB socket, using the in-car charger straight from the cigarette lighter doesn’t work). Basically, I can charge my phone off anything that isn’t directly the Mains electricity.

I’ve googled the hell out of this problem, only to find that posters will quickly dismiss it as faulty hardware; bad USB cable, broken USB port, bad charger, low voltage from mains – anything at all. But the bottom line is I do not have faulty hardware. Everything was absolutely fine until the very instant I finished flashing DeltaROM – I’m convinced something didn’t go right during my first installation since it was a bit rocky (read the original post for details).

After getting no answer from the Delta lot I jumped ship to LiquidSmooth (which is very nice by the way) but the problem remained. In one last attempt I started again from scratch. I used TriangleAway, formatted EVERYTHING (the kind that also deletes all your media) and flashed back to stock. Using Samsung Kies I 'upgraded' the firmware and I'm now on the latest official 4.1.2 release – and it makes me a little sad!

Just to back up the fact it’s not hardware related, I deliberately persevered with it to gather up as much information as I could, and here’s what I learned:

Why I'm sure it’s not the battery.

•	I've tried two other batteries (3 total) and the problem exists with all 3

•	The health of my battery is excellent

•	My battery charges fine in other phones

Why I’m certain it’s not the Charger

•	One of my chargers is only a couple of months old

•	The charger I have been using is the official Samsung one that came with the phone, though I have 3 more – one BlackBerry one, a charger that came with my s1 (many moons ago) and two the same that came with mine and my gf’s phone. These are the plugs with a USB input on them,

•	I have 5 chargers in all – BlackBerry, Nokia, Samsung (x3) ALL of which don’t work with my phone but ALL of which work with EVERY other phone in the house.

Why I’m sure it’s not the wall Socket.

•	I’ve tried every plug socket in the house and even taken it to my parents and to work – same story.

•	Everything else I plug into the sockets work just fine

Why it’s not a bad USB cable.

•	I have 3 that I use. All of them will charge off of the computer, the car or the Xbox – they cease to work when I use them in the mains USB plug.

•	They all work fine on every other phone in the house, regardless of if it’s in a mains adapter or a computer

•	I am able to connect with all 3 cables to my laptop to view files.

Why I don’t think it’s a damaged USB port on the phone.

•	It ‘does’ actually do everything it needs to do when plugged into my pc, Xbox or car. If it’s communicating well with other devices and harbours electricity correctly when doings so, then it can’t be the USB port since the way it gathers energy is the same.

So what gives? How can it be bat hardware if it works from the PC? How can it be bad firmware when I am back to Stock?

Thanks a million guys.

* Telling me to send it off for repair doesn't count. If it's something that I can do at home and it fixes my issue, the first person who gave that advice will be the winner. This does of course mean that if my phone is just downright screwed, there's a chance no-onw will win.