Thanks for the post. I actually do have this problem, which is why I sent it to Samsung. Samsung gave my phone to an approved third party and they inspected it and said my phone had liquid damage. I am calling bs. These guys are lying. They sent me an quote for repairs of $150 because liquid damage means phone is out of warranty. If I decline to get it repaired, they are saying they will charge me $30 for "assessment." I can't even believe this and I am pretty mad about this situation. This amounts to blackmail because I was never told I was going to have to pay for shipping the phone back if it was found to be out of warranty. Samsung basically washed their hands off of the device the minute I had shipped it and everytime I called thereafter to follow up, they told me to contact the third party becasuse they had no idea.
You have got to be kidding. Wow. I would definitely point them, Google, whoever you can - to that huge Android Support thread here:
Issue 23789 - android - Galaxy Nexus Charging Issues - Android - An Open Handset Alliance Project - Google Project Hosting
Ask them what the hell is up with that. So far it's well past 500+ posts and still there is no permanent fix for this problem, nor any acknowledgement from either Google or Samsung. If the only problem with your phone is the same one mine had, and same one hundreds of people in that thread had/have, your phone has not been damaged by liquid - trust me. If anything, you could have accidentally tried plugging the microUSB cable into the phone upside down a time or two, and since this is such weak sauce and made of pure crap (the port I mean), it bends that little nub downward until it begins touching the bottom of the phone. Are there any times you can remember accidentally attempting to plug it in upside down or anything?
Anyway, whether or not you remember, when you shine a flashlight into the port of your phone, is the little nub, or tongue, bent? Is it touching the bottom of the phone? If Samsung is seriously going to treat you like you've water-damaged your phone, I'd cut my losses, pay the stupid $30 fee, get your phone back to you and handle it yourself. That or contact Google again and tell them exactly what is going on, mention the support thread, and tell them how Samsung is trying to screw you over. It's worth a shot to see what Google says, I believe, and it won't cost anything to talk to them but your time. If you want to take the matter into your own hand, you can try to bend that nub in the port upward, but do it very gently so it doesn't break off. Most people in the thread bent it just ever so slightly, then would test to see if the phone would charge regularly again and quit the phantom charging/screen light up issue. If not, they'd try to bend it upward more, again only slightly. Another option, if you're up for it, is buying the spare part (the microUSB part of the phone) and replacing it yourself. The part is extremely cheap, but you have to have confidence to take your phone apart. Back in the day I could do this with my Blackberry Bold 9000 easily; I remember I even had to replace its LCD screen myself with one I bought off eBay because I fried it. But these days, I have never taken an Android phone apart, so I don't have that confidence anymore.
Good luck man, can't believe they're trying to play that card on you.