Samsung Galaxy S Duos — Samsung grand prime network

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Jun 30, 2017, 12:45:24 PM via Website

hello for all
lhave proplem with samsung glaxy prime
when i enseart sim say not registerd in the network
the sims image show on the bove of the phone
show the images
And after that i update it to latest version but the problem still with no network and not find service message
there another thing if I fail *#06# the imei does not shown
or nothing happens this after update

Please helppp