QUOTE(j.sun @ Apr 25 2012, 07:40 PM)
I dunno whether is my nexus problem or my lappy problem. At first, I connect my phone to my lappy via usb cable, by right it should be charging right? But it won't charge until I restart my phone then only it start charging. Before I restart my phone, the battery icon on top right shows charging but the percentage won't go up. Anyone encounter this problem before?
I tried to root my phone ystday but failed. Will try again tonight and see if can work or not. Don't really understand from the first post on how to do this and that. Tried step by step but still failed. Guess I'm very noob in all this android root-ing thingy. Any kind soul care to help a noob like me? XD
I make it clear, by default charging is very slow. It's like every 15~30 minutes 2~3%. The max current of the USB 2.0 port on your puter is 100mA, that's why it takes longer. This situation will improve with the USB 3.0 standard. A unit load is defined as 100 mA in USB 2.0, and was raised to 150 mA in USB 3.0. A maximum of 5 unit loads (500 mA) can be drawn from a port in USB 2.0, which was raised to 6 (900 mA) in USB 3.0.
Thus, this is not a problem. If you want to use USB to charge your phone. You need to have custom kernel and rom that supports and enable fast charge which force USB to have more output. Charging via USB =/= Wall Plug remember that.
Rooting is very easy, do you refer rooting stock rom? Why don't just flash custom rom because it has comes with rooted, deodexed and having tons of customisations and privilege which much better then boring stock

What do you need now is a unlock bootloader, and flash custom roms like AOKP to fully utilize your needs~ The stock will never satisfy your needs~
This post has been edited by droid13579: Apr 25 2012, 07:50 PM