This is mostly due to the rise of the Lumia Windows Phone range (customers increased from 1% to 40%), and the fall of the Symbian operating system (decreased from 99% to 60%). The number of Nokia customers that would recommend a Lumia handset has risen by 13% to 45%.
Nokia is now ranked first for four of the following attributes; battery life, camera quality, speed of call connection and the robustness of its handsets. This could be why Nokia has seen an increase in its satisfaction ratings for more important attributes such as; reliability, function speed, internet connection speeds and ease of use.
Continue to read the report here.