RM-801; RM-819 (Nokia Lumia 800) 
BB Troubleshooting and Manual Tuning Guide 
 
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ALS Test 
Displayed data: 
-  Light intensity in mLux 
-  A
 gray scale rectangle with varying intensity 
Us
er can change settings for: 
-  N
/A 
Us
er can test: 
-  C
over the opening in the front of the phone over ALS component 
-  The v
alue of the light intensity should change dynamically and displayed in the textbox 
-  The 
changing value can be visualized with changing brightness of the gray scale 
Pr
essing the back ‘’ key will take the user back to the application menu