Why is my phone sounds working but the screen isnt

Hi @chevylover ,

Seems as though the LCD screen has either been damaged or the screen flex cable has come loose. Given it was thrown to the ground I'd go with it being damaged.

The screen will have to be replaced as it is irreparable.

Here is a link to the ifixit 三星盖乐世 J1 / J100触摸屏与LCD屏幕的更换 guide.

Here is a link to suppliers of the replacement part. It is not a recommendation to use any of them. It is shown to give an idea of the cost of the part. There are other suppliers online that may suit you better. Just search for Samsung Galaxy J1 LCD screen and digitizer to get results.

Ensure that you get the correct one for your exact model number.

If replacing the screen seems too daunting a task, contact a reputable, professional mobile phone repair service and ask for a quote to repair the phone