I apologize for the noob question, but how to I flash a .zip file on Android? When I open the .zip using a file explorer, it just shows the included files & paths (it doesn't do anything). Is there an app that actually extracts the files to the correct paths?
You flash zip files in android using a custom recovery. in order to use a custom recovery you need root.
Heres my recommendation:
First you need to root your phone. Depending on your SW version theres an easy way and a less easy but not too hard way. If you have V9, pursue the easy way (see notes below). To determine which version (V) you have on your phone go to menu > Settings > about phone > and look at the SW Version field. If this field ends in V9 cool, thats not too shabby at all. If it ends in VC, which is the brand new update being pushed out his week, it's still not going to be terribly hard but don't plan on 5 minutes and done type of thing.
if you have VC - You need to go to
this thread to root. Now please read it carefully. Not just the first post but the last 5 pages or so some great info has arrived to help those who accepted their VC update OTA. Any questions about the root process should be asked/discussed in there. Also make sure you search it and read well because theres a good chance someone already asked and it's been answered which saves you time waiting for a reply
Once you're done rooting VC, if you have VC, move on over to the
custom recovery thread. These are the steps to install a custom recovery on a rooted phone which will alow you to flash a zip file (your ultimate goal) that's not signed by LG, like the one's us developers make.
If you have V9 - Right now thats kind of a curse and a blessing. V9 roots, custom recovery, flash ROM pretty much easier than most phones I've seen in the past. Here is my thread on
how to root, flash a custom recovery, flash a ROM without touching a computer. Please understand that theres a very good reason this method of rooting won't work on VC, they patched an exploit that this method uses. Now the curse part of it is this, VC included a newer radio which may result in better cell reception for you. In order to get that radio, you need to do some stuff to get it to apply but in the process you make this root method void and then will need to default to the slightly harder process. Details on the "proper" way to apply the VC update can be found and discussed in
THIS THREAD.
Make sure you post any questions comments or concerns in those threads so people who are working on or dealing specifically with that process can give you the proper attention. Also, and i probably sound like a broken record, read those threads and lots of others threads on these forums. Theres a ton of information and i know it can be overwhelming, trust me i know, but read it once, read it again, read as much as possible. You'll notice that certain things start to make sense which sounded like we were speaking a different language the first time you read it. Alright now I'll stop talking your ear off and unleash you after 1 final critical piece of advice, search search search. Theres so much information in so many threads that the search function is going to get you from A to B much easier. keep in mind that the first time you search, you may be using the wrong wording, or maybe the right wording but the thread you're looking for might be on the second page. Think of it like a google search, clean clear specific words, cut the fluff, and even the best search string might return your result on the 3rd page.