Android 4.0.3 china I9220 root
I write you because as expert Android user you may surely help to solve my problem.
Yesterday I have rooted my smartphone, a chinese I9220 with mtk6575 processor and 4.0.3 android release. I have done this to repair the damage made by my wife that push "fabric reset": this action had cancelled the IMEI and so the smartphone didn't connect more to 3G network mobile.
As I said before, I have rooted the smartphone and so I have succeded in to rewrite the IMEI. But now, the smartphne seems more slow and starting to this morning It is not possible phone because the audio and the microphone doesn't work.
How can I solve this problem? May you suggest an apps or a software that can restablish the normal working of the software? In the case, is it possible unroot the phone?
Thanks in advance for your answer