Ask dell latitude 5520 The sreen flashes different colors at start

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nassih

Registered member
May 3, 2016
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hello everybody i have dell latitude 5520 I tried to open it to see the reference of the motherboard it had a password in the bios, I removed the ram and the battery, after I tried to restart is I fell on the problem of 3 blink orange 6 blink white and black screen, sometimes The screen flashes different colors at start.
tanks
 

nassih

Registered member
May 3, 2016
17
0
44
the problem of the orange and white blinking led was solved , the lid which was badly placed and no making contact with motherboard, the problem of screen flashes different colors at start its the same
 

nassih

Registered member
May 3, 2016
17
0
44
no , I didn't touch the motherboard, I just removed the battery to cut the power on the motherboard then I removed the ram to see if there is a model number underneath
 

nassih

Registered member
May 3, 2016
17
0
44
no , I didn't touch the motherboard, I just removed the battery to cut the power on the motherboard then I removed the ram to see if there is a model number