Okay... I really find this very annoying to have to do EVERY TIME A PATCH COME OUT.... I'm on Windows 10 (if that makes a difference) and I rarely had this problem until the update to Windows 10 but every time I get to Champion Select, the screen is black. Social buttons work fine, but there's no sound, no images to select. Just a black screen.
To fix this, I have to go into the ---
Riot Games folder> Legend of Legends> RADS> projects> lol_air_client> releases> 0.0.1.189 (most recent release for 3/20/16)
From there, I have to delete the [ releasemanifest ] & [ S_OK ] files. Then I have to open the [ deploy ] folder.
From there, I have to delete the [ lib ], [ META-INF ] folders, the [ LolClient ] Application and [ Shockwave Flash ], [ locale.properties ] and [ lol.properties ] files.
After that I have to REDOWNLOAD THE CURRENT PATCH.... Which takes about 15 minutes sometimes... And that works 75% of the time... I shouldn't have to do this though. I get a leave every time a new patch comes out because I have to test the thing to see if it's gonna work right or not.
RITO PLS....