I just factory reset my 820 and now I restored everything but I realised I am missing things such as 'storage check' in the settings menu... anyone know why and how to fix it...
Just download sysapp pusher and find those apps in the Nokia section and re download.
I have a 925/8x and first learned about this when I did reset my 8x. Beats audio and other settings were gone. So, ms worked out a way for OEMs to be able to update important aspects of the OS without carrier approval.