I got black Lumia 925 unlocked from Vodafone Germany 32 GB... I noticed from the first moment that the brightness for the touch buttons is very very low compared to 920 and the light is not uniformly distributed over each button... also the color of the light look like yellow/orange/red combination, sorry its hard to describe the color precisely...
I have a Lumia 920 also and it has much much better brightness even though my 920 button has the yellow tint problem... My 925 button are yellow to orange color... The brightness very very low...
Another problem the right side of screen a little bit yellow compared to the left side when looking at the keyboard.. Also another issue which known for most Samsung AMOLED screens, if you go to completely dark room and open a black photo on the screen (you can use app called pixel doctor to check) you will notice black annoying dots darker than the rest of the screen... Mine has 7 main dots..
Is this normal? How yours looks like? Just wondering how many people has these problems...
UPDATE: I have another problem described below... Blurry text while scrolling....
Noticed that my lumia 925 has a blurry text while scrolling, specially when scrolling white text over black background or black text over white background... also noticed some blurry when scrolling tiles on the home screen, this blurry occurred around the black horizontal lines separating the tiles.... compared the scrolling with the 920 and there is a huge difference...
I read that some of the galaxy S4 units has this problem and that this problem related to Samsung AMOLED screens, and you know the lumia 925 has a Samsung AMOLED screen.
Any one has these issues? let me know in comments please..