After the last update few days ago, when I m on a call the voice that I m hearing becomes kind of digital and it's impossible to understand what they 're saying.has anyone experienced that?
"Going digital" is caused by a weak signal. It could be that the update included a new modem, which is less sensitive than the old one. Depending on the phone, you might be able to find the older modem on XDA Forums and flash it, getting back the old sensitivity.