buzzing sound coming from speaker when calling

[mililim]

hi all need some help, i have a 3310 that give a loud buzzing sound when calling out.

i have change a about 5 brand new speaker but it still the same, there is this buzzing sound when calling out.

can anyone please advise no what is wrong woth the phone.

Thankz

[loloph]

Hello,

Based from my experience the Buzzing Sound is caused by either a defective or unsoldered ball underneath the COBBA/AUDIO IC. Try reheating it so that you will get good connection underneath or if it still exist, replaced with a new one.

Best Regards,
loloph

[micutu]

try to verify your filter your ground screening and after that reball the CCONT

[mililim]

thk all

i try it out

[mililim]

@micutu

hi have do you verify that gournd on the filter?

thkz

I have try out the the method suggested but still did not work, anyone else can help me?

Thankz.