Sound quality decreases when the screen turnes off

It happens because your phone turns on special settings when the screen goes off. There are two reasons for that:

  • your PSP or WiFi cards;
  • SPU settings decrease its speed after the screen goes off.

To solve this problem, change the screen settings:

  • First, switch to «Expert» mode on a page of common settings;
  • Then, activate «Don't shut off the screen» option in the «Interface» section.