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Ohh my lord, I don't know what happened suddenly. I don't have a PP_bus anymore. Mag safe light is not glowing. U7100 vdd (PP5V1_CHGR_VDD) is present. I/P also present (PPDCIN_G3H_CHGR - 19.7V). SMC_RESET_L is 0V. No idea why. Have I spoiled it :cry:??
Sorry I was using a MagSafe charger with a variable power supply for measuring the current. That's the reason I didn't get P5VS4_EN .
Now I have connected an 85W charger directly, I can see the Fan is running for 5second, then stops and repeat the same.
PPBUS - 12.58V
PP5V_S5 - 5.078V
Board is not powering ON, PPBUS, PP5V_S5, and PP3V3_S5 are present. PP5V_S4 and P5VS4_EN are not present.
I have bypassed the SMC. I could see the fan running at high speed for few seconds and repeating. And the PP5V_S4 is also present. Can I know how can I proceed?
There is no sign of a hit /dent on the display. Is it something I can remove the display LCD panel and fix it internally ??? I have a 0.1mm ultra-thin opening card, Will it help if I open the display panel? What problem it would be if there is no Hit on the display?