If you are facing mic problem in Itel U10 then this post can be help you. In this I have shown you how you can easily solve the mic problem of this phone through by jumper.
First you change the mic and check again, still if the problem is not solved then check the mic track, if the mic track is missing, then put jumper in this way as shown in the picture.
After disassembling the mobile phone, check the PCB thoroughly. Check for water damage, dust or carbon. After this clean the entire PCB with a good liquid cleaner. After that check the problem carefully.
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Remember: – Every repairing solutions posted on our website has been tested by us. However, we do not take any responsibility for any damage comes to your mobile phone. Make this repair at your own risk.