I own a Samsung Galaxy S2 I9100, currently running Android 4.0.3 XWLP7, rooted. My problems however started even before rooting the phone.

The problem is that whenever I try to call someone, there is about a 20% chance that the phone will freeze, sometimes for over a minute(!), without performing any action. I can hide the Phone application by pressing the home button, but the app itself is frozen and unresponsive. After some time passes, the call is made, even if I've hidden the Phone app by pressing the home button.

All other apps seem to work without any issues. The phone is otherwise completely usable and no other defects can be observed.

A while ago after googling, I found a thread on xda-developers that recommended clearing the data of "Call settings" from Settings -> Applications -> All. At the time I believed this to solve my problem, but the problem reappeared pretty soon, and I do not believe it to be relevant at all now.

I have tried restoring my phone to factory state, including deleting everything from the phone storage and reinstalling the OS, without any effect on the issue.

Is this a known issue, and if so, are there any remedies?

  • Have you installed any call recording software?
    – Narayanan
    Oct 9, 2012 at 10:02
  • No, I haven't installed any app that should have anything to do with that.
    – K.Steff
    Oct 9, 2012 at 10:26
  • Try upgrading to ICS 4.0.4, the previous version 4.0.3 was known to be a little bit troublesome.
    – t0mm13b
    Oct 9, 2012 at 19:16
  • Why do you not try using another ROM? I have had that issues with some ROMs earlier and usually it was just due to a faulty calling app. Another good idea would be to try a different app to replace the dialer. Eg. Dialer+ or Contacts+ Mar 14, 2014 at 4:24
  • @AdityaSomani That's what I ended doing - re-flashing and it worked. I have not answered the question, though, since I think it's not really an answer...
    – K.Steff
    Mar 15, 2014 at 0:46

1 Answer 1


Do you have a screen protector or is the light sensor dirty or obstructed? This is how i fixed mine!!! My phone did the same thing. Screen would go black when making or receiving calls. Audio still worked but the phone was inoperable in every other way during this malfunction. i realized those little sensors were dirty and partially blocked, after cleaning the obstruction the phone was PERFECT!

  • While sensors (not sure about light sensors, but usually proximity sensors) may turn off the screen to prevent accidental touch, the symptoms described in the question look different. unless "freezing" = "screen turned off".
    – Andrew T.
    Feb 19, 2022 at 13:23

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