So far my new N900 refurbished working very good, today I'm reviewing the camera, the writing speed and internal memory with Pierogi Infrared Remote Control. I have been a surprise, the camera gets a little better contrast and focus, and Infrared Remote Control has a bit more range than my other N900 made in Korea. I remember that my two devices are using the same settings (CSSU testing, apps and files MyDcos) The only problem is the screen, has two white spots only appear when white background. Research the source of this problem and it is a bad factory assembly. To fix this I open the n900 and disassemble the slider and screen to mount again. Any suggestions about this problem? Thank you.