Hello, I have found my old Huawei Ideos x3 (U8510), with Android 2.3.4. It was normally working before two years. I wanted to test of my application (https://play.google.com/store/apps/details?id=cz.petr.nastaveni) but unfortunately the google play isn't working, I can sign. It told me, there is an error with synchronization, which I have resolved by turning synchronization on and off several times. All the time in about two or three minutes intervals, the Google Talk tells me, it can't sign in. I am able to read Gmail messages, Youtube works too, my contacts have synchronized. What have I tried: Reboot the device Delete cache of Google Play, Google Services Framework (I have also read, it causes the error but I don't know)... Reset to factory default Nothing was working.