3 is renowned for its excellent 3G mobile coverage, generous data plans and excellent monthly tariff allowances. The carrier was responsible for the fastest ever roll-outs of 3G network technology and led the way the UK’s first video mobile network. You can keep up to date with developments at 3 by reading our dedicated news section.
4K video has a long way to go before it ends up the 'norm' standard over High Def or even Ultra High Def...
I faced this problem, I forced shut down using power + sound up buttons, the problem went away.
the last picture shows jolla-device not nokia's n1.