Build 10166 and Lumia 630

[MarkXsama]

I had to downgrade from build 10149 to WP8.1 to work.

Some bugs:
1-start and lock screen wont set the background wallpaper right;
2-touch doesn't work - wont even open, so you cannot turn vibration/haptic feedback off;
3-you have 2 same green colors in accent color setting;
4-accent color and navigation bar color do not match;
5-some screen bugs in settings/not. & actions - apps do not show icons;
6-automatic battery saver download, eve though there is an pre-installed battery saver;
7-in app list menu, outlook calendar has no icon;
8-you cannot uninstall contact support;
9-even after you clear a FB messenger, outlook mail notification in action center, they still appear on the live tile - kinda annoying, since you already swiped them away;
10-

 

[Wajeeh Maaz]

Also,battery is terrible

 

[Deanig_12]

yep i tried it on my 640 last night i only lasted 20 mins on my device before i had to go back to a fully working phone fingers crossed we get the new build and soon =]

 

[MarkXsama]

Always hard-reset phone after an up/downgrade. This usually solves things, but the fact that build 10149 worked so fine for my 630 and the newer one, which is supposed to be better, is worse...