There is no sound on the Samsung Galaxy S3 Neo I9300I there is some damage that you should know such as, speaker broken, disconnected lines, damaged resistors, IC broken even software can affect speaker not work. on this occasion we wants to share information about ring tones do not work on a Samsung GT-I9300I please see the following trick.
Hints to fix Samsung Galaxy S3 Neo I9300I Speaker or Ringer Problem Repair Solution:
Check the speaker assembly for possible damaged and or misaligned. Use a multimeter to check it (How to use Multimeter), replace if already busted.
If the speaker is okay, check and clean the speaker terminal contact pads. Corrosion might weakened and loosen the connection.
Trace the speaker+ and speaker- connection to each certain components where it is being connected.
Check and replace the filter capacitor and resistor components.
Check and ensure first that speaker is working or already tried installing a replacement spare on.
If the speakers were okay, you may then proceed to check those components showed on the solution above.
There are filter coils connected on the circuit, you may first check this componen
Samsung GT-I9300I Speaker Ways, Ringer Not Working Problem,Speaker Jumper Solution, Ringer Problem Repair