I would ask you for some help. I successfully destroy my settings on my TV (to a factory default?), so the picture is awful (bad colors and unsharp picture).

My TV: UE40D8000YSXXH, panel type: 40A2UF8E.
What can I do now? I tryed some of the Front Colors below, but nothing changed. (Or should I try to change only the WB in ADC/WB menu: R/G/B-Offset/Gain and Sub Brightness/Contrast?)
I don't know, which Front Color is the correct for my TV. These are available in the Service Menu:
None, L-T-C-Gy
P-S-C-BK, L-T-R-Gy
P-S-R-BK, L-W-Milk
P-S-BK, L-W-M-Wt
P-S-B-BK, L-W-D-Gy
P-T-R-BK, L-W-Vio
P-T-C-BK, U-S-C-BK
P-T-W-Bn, U-S-R-BK
P-T-W-Gy, U-S-BK
P-T-M-Bn, U-S-B-BK
P-T-C-Gy, U-T-R-BK
P-T-R-Gy, U-T-C-BK
P-W-Milk, U-T-W-Bn
P-W-M-Wt, U-T-W-Gy
P-W-D-Gy, U-T-M-Bn
P-W-Vio, U-T-C-Gy
L-S-C-BK, U-T-R-Gy
L-S-R-BK, U-T-BL-M
L-S-BK, U-T-BK-M
L-S-B-BK, U-T-CL-M
L-T-R-BK, U-W-Milk
L-T-C-BK, U-W-M-Wt
L-T-W-Bn, U-W-D-Gy
L-T-W-Gy, U-W-Vio
L-T-M-Bn, U-W-Vio75
Panel Auto Setting in Service Menu "Failure", but I can't make it "Success"... (Perhaps for bad Front Color setting.)
Is it true, that the first letter of the codes above means the display technology? (P - plasma, L - LCD, U - LED)
Thanks for your helping or suggestions.