Xperia U unusable slow after android update

[sabusito]

After upgrading to Android 4, as indicated when connecting the mobile to the computer, the mobile is unusable due to slow behavior.

I loose calls, respond to indications maybe 3 minutes later, apps are unusable, all the time sayin it does not responde. The problem is that this is a bussiness phone, and several mates are suffering of the same problem, so it is not a individual problem, is an error of Sony not tested properly the device.

I beg Sony providing a patch or a solution, as we are several people affected with this problem, and I think in the company will change to another provider.

Thanks!

Antonio

[Hampus]

Hi and welcome to the community! Since you're new please be sure that you have checked out our Discussion guidelines.

The latest and final version for Xperia U is Android 4.0. The hardware requirements are more advanced than previous software updates, so your phone’s performance may be affected. You can always boot your phone into safe mode to see if you experience the same behaviour:
http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008

I also suggest that you take a look at the following FAQ to see if you can find any tips:
http://talk.sonymobile.com/t5/FAQ/Does-your-phone-feel-slow-and-laggy/m-p/347824

[sabusito]

Hi,

Checking in safe mode happens the same. Happens the same in the moment of the clean installation, so does not have to do with the apps installed, although they can still cause it go go worse.

Tried anyway to uninstall everyrhing again, all the widgets,... but as I said before, happens on clean, so makes no sense trying anything more.

The update should contain the configuration needed for the device in order to work in an acceptable way, and not send this task to the users to check the processes, the RAM, etc... If it is not properly tested, the upgrade should not be offered each time you connect in the device.

As I told you, all the people I know with this device suffer of the same problem, making the mobile unusable.

Thanks!

Antonio.