I'm from India with latest update installed. I'm not complaining about voice call quality when I'm in quiet places like home or office. But in outdoor conditions / public places I can't hear a single word from the call. I have tried all volume levels and held phone at different angles but that didn't help much.
Looks like it's design / hardware flaw and won't be able to fix it by software update. This is a serious issue and Asus should pull back all the 6Z phones to fix it. Intoducing flip camera is great but if makes earpiece unhearable then that's not acceptable.
