TECNO T340 MIC FINALLY
Finally I have figure out how to resolve Tecno T340 mic problem but the solution I have is not like the one you knew before .
After tomuch of trials and challenge about tecno t340 mic problem, at last we found out and its hundreds percent working tested by me, and this mighty work need to be done by professionals incase of getting mistakes becouse I self before successing on this problem I kill many phones but now I’m doing this in five minutes.
Caution ; if you are not sure about your skills on reballing ic’s.please do not try on peaples, phone; buy one whit the mic issue and perform this tutorial.
First of all an engineer should understand that the Tecno T340 is types of mobile we call chaina most of the chaina phone they dont have many ic’s they only have cpu and network ic, network switch and regulator, Rtc ic etc.Now all of the activities inside pcb lay on cpu ic, you will find it insite power section with name mediateck, this is the cpu.
Working of cpu in Tecno T340 pcb;
1.power on off.
2.ringer and earpiece.
5.keypad and disply.
Now if you have Tecno T340 mic problem after replacing with working one and the mic not respond just change the cpu that is it. Remember if you don’t know how to reball cpu please waits for our next update with video tutorial on how to reball any cup with local tools, and I am sorry for not placing image as well , due to some reasons and I will update it soon just keep sharing and comments .your comment are reviewing alway the reason why we don’t reply you is this we have no time is not like before but Insha Allah I will find time for your comments thanks