K1554847480923, Jul 21, 2019 : hi friends , does anybody else have problem with mobile and wi fi ? sometime it took much time if wf network is bad when it turn to 4g it need some time . depends on ocasion but some time 2 3min , monetime 20 30sec. just show up on screen 4g with sign ! . its happends alot of times . i buy this phone beacouse of speed but sometime is slower then Nokia model 2005year . is anybody has this kind of problem ?