Hello!
I have ENOVO V15-IIL with NM-C711. Laptop is dead (no reaction after pressing power button)

NM-C711
CPU: SRGKG
KBC: Ite IT8227E-128 CXA

AC Adapter only: I have +3VALW (PL9700 = 3.33V), +5VALW (PL9701 = 5.02V) and +3VALW_PCH (RC711 = 3.33V) power rails working.
ON/OFFBTN# = 3.33V

I'm missing +1.8VALW (PL9800 = 0.01V, 520Ω).
PU9800 pin35 =0V (+1.8VALW_EN )

IT8227E is being powered (+3VL_EC = 3.33V).
I've reprogrammed KBC and BIOS, but that didnt help.

Any ideas?

EC_ON_1.8V present? Is PR9802 okay?

No, EC_ON_1.8V =0V (100kΩ)
PR9802 is a jumper.
PR8902 resistance = 100kΩ

IT8227E is not launching EC_ON_1.8V.
KBC is 100% functional (i just used it in another motherboard)