I am running a Dell Latitude X2T and i can get no response from it. The lights above the F4 and F5 keys and the caps lock come on and screen never powers up.
I know this is an old post, but the LED code for CAPS lock on, F4 flashing, F5 on means memory issue. I had this issue, reseated the memory, and the issue was resolved.
I had the same problem and was able to fixed it by using the other set of wires that connects the display to the wireless adapter (on the bottom of the laptop) ... use the grey and white/grey wires instead of the black and white wires.
Worked for me -- but I had the startup disk in an external drive. When I first switched the wires, came up well -- with notes on an unfinished install, and instructions to restart and reintall. When I tried to start up with the external drive, we were back to the caps lock, F5, and flashing F4. I'm thinking along the lines of a power issue with the draw from the external drive (D/bay PD01S)(which seems to run fine on an older Latitude)..
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I've tried this and it doesnt work for me. Also I have 3 Plug wire antenna Black, Grey, White, With the White/grey and the Black/White wires covered with a plastic cap. What else may work?
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