Share your experience!
do a clean install by following the steps
1. data reset
2. update using SUS
3. data reset
remember data reset will deleted your contacts, msgs and all your downloaded apps so back up and do a data reset ..
if u feel the above steps are not good then follow this
1. for album issue install this https://app.box.com/s/ep07u7g1gp0d4w2g44fs as normal apk and go to settings/apps/all/album clear data and reboot your device
2. for call issue only repairing with SUS is the solution
or root your device by this http://forum.xda-developers.com/showthread.php?t=2335992 jus two min work then install cwm(used to flash/install any rom, mods etc) http://forum.xda-developers.com/showthread.php?t=2020895
then flash this rom http://forum.xda-developers.com/xperia-u/p-development/rom-honami-mw-hd-v8-ultimate-speed-t2422819
this rom has no bug at all and has all the latest media apps etc
if you have any cache cleaning/RAM boosting apps, i advise you uninstall those. i was having the album issue, solved when i removed AVG cache cleaner.