Error 492
. issue:
It is impossible to install applications due to dalvik cache
. solution:
Go to settings> applications> all, go to Services Google Play, clean data and then forced detention
Do the same with Google playstore application
If the problem persists, enter Recovery mod, do dalvik cache and then restart
How latter solution, from the Recovery do a wipe / factory reset complete data. All stored data, passwords, etc. will be deleted Make a backup before the files you want to keep.