I buy a bv5500pro phone because I break my old samsung. But there is a big problem for me. my key customer use whatsapp excessivekly and it is expected that I am ONLINE just everywhere .
But whatsapp keep randomly disconecting while phone is not used (locked). After several -about ten minutes when lying on desk for example, whatsapp connection to the phone is lost . So there is lost connection to whatsapp web too. So from point of view of my customers I AM UNAVAILABLE . No notoification, no beep, no messages even on PC. To go back to normal i must manually unlock the phone and click on whatspp icon. An then, all lost messages apear... this behavior is unacceptable
I try to fix it by disabling wifi and leave only a mobile data. I try to fix it by settings in batery , disabling duraspeed, several factory reset and uninstall and reinstal lwhatsapp, etzc., but no luck. Any solution ? I just need ti be available on whatsapp always (and need to be protected by automatic phone lock and pin).