With the latest insider preview build of Windows 10 for Phones — now named Windows 10 Mobile — released you can now install it on your flagship phones like the Lumia 930 that I’m using. So that’s what I did. I hopped on the fast-ring and let the update process do its job.
When I returned to the phone (downloading and installing can take some time) — I was greeted with a loading screen. Turned out to be an eternal loading screen. It kept on loading and my phone started to heat up. I plugged it out of the charger and turned it off. I turned it back on again after a while and the loading screen still greeted me and it kept on loading. I found out I could however access the notification center, Cortana and even use the task switcher. The loading screen was in fact the start screen not being able to load. I thought I would have to use the recovery tool.
Then I tried resetting my phone from Settings > System > About > reset phone. After a reset the start screen appeared. With huge tiles. I then read some tips on tweeterspacespherenet about this particular issue and resolved it by going into Settings > Personalization > Start and enable “Show more tiles”. The tiles would be smaller, but there’s still some issues with the icon size to tile size ratio, but I can live with that for now.
Another issue you might run into is that backspace does not do anything. By adding another keyboard from Settings > Time & language > Keyboard this started to work as well. I might also add that I like the way you switch between languages now. Swiping on the space key? Nice gesture.
To sum it up or TL;DR:
Start screen not showing? Getting an infinite loading screen?
Reset your phone from Settings > System > About > reset phone
Huge tiles on your start screen?
Go to Settings > Personalization > Start and turn on “Show more tiles”
Backspace not working?
Go to Settings > Time & language > Keyboard and add another keyboard language
One more thing; have you noticed a mouse cursor in the top-left corner when you tap on the back, home or search button on your phone? Try pairing a bluetooth mouse. You can now use your mouse to click on stuff on your phone. The scrolling does not work though: