Ok, so this happened a few weeks ago now, but I've only just got around to trying to sort it out.
So, I got the Galaxy S i9000 at the beginning of December 2010. I installed quite a few apps, and always downloaded the updates. My internal SD Card got down to around 2.2GB, and my Internal Phone Storage got to 1.62GB. (I also have a 16GB external SD card with 473MB remaining, but I don't think that's relevant). Anyway, aabout a month ago, I downloaded Angry Birds from the market, but it was taking a LONG time to download. It was doing like, 1% every 5-10 seconds, whereas it usually downloads really quickly). So I cancelled the download, and tried re-downloading it a few hours later. This time, the download happened fast, and it successfully installed.
Cut to a few weeks ago...
I opened my camera (I save my pictures to the phone SD card, not my external SD card), and it came up with a message saying "Warning: Not enough memory". Before this, in the corner where it tells you how many pictures you can take/save, I know for a fact that it was WELL over 2000. Now, all of a sudden it went down to 0, and that warning message came up. So, I went in and checked my memory, and under Internal SD Card, it said 0.0GB free. I have NO idea how I lost 2GB of memory, and I have no idea how to get it back. I uninstalled some apps, deleted a lot of photos, cleared my Downloads folder, but I can still only ever get it up to around 50MB or below.
Can anyone explain what went wrong? Or how to get back the GBs that were lost? I'm really not very technical minded, and messing around with phone setting generally scares me, incase I break it even more! So if anyone has any clear advice that will help me out, I'd appreciate it!
Also, I'm not sure if this has anything to do with it or not, but since this memory thing started happening, I've had to charge my phone a lot more. Before, I'd only need to charge it once every 24-26 hours. Now, I need to charge it every 14-16 hours. I've tried optimizing the power by turning the brightness way down low, putting the screen timeout to 15 seconds, turning on power saving mode... but it doesn't seem to make a lot of difference. That mostly only buys me an hour or 2 of extra power.