The i8150 always has a shutter sound when taking a photo, even in the mute mode, which is really annoying.
I found some methods to remove the shutter sound on the Internet, but none of them were successful, but they inspired me and led me to think of the following solution (I have already tested it personally, succeeded)
1. The mobile phone must be root
2. Download the RE manager and find/system/media/audio/ui to shutter_01.ogg to rename it, for example, jcshutter_01.ogg.
3. Restart your mobile phone (or you don't need to restart it. Check your luck)
------- After completing the above three steps, when the camera is used again, the shutter sound of the photo will disappear, but the focus sound will still exist -----
4. Download Camera360 and disable the sound in its settings.
------ Now, the focus sound is gone ----------------
Now, the shutter sound is successfully eliminated.
If you want to use the shutter sound, you can only change the jcshutter_01.ogg file back to Shutter_01_ogg.