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i still couldn't find problem. so we can say that it is not nand problem 100%. but i couldn't find where the problem comes from. do you have any news?:)

so have 820-00928 in hand. it was water damaged beetwen Y1900 and U6100 area. changed and resoldered some resistors. so problem is next 1) macbook is fully turning on with battery connected but not charging 20v 0a. ( only turning on by power button, not turning on by charger, 20v 0a only appear...

820-00928-A

ok i will try flash no problem. could you please give me a working dump?thanks no not from working board

changed from donor board both

ok i understand that thanks but now i don't understand what to try next:)

so SMC_USBC_INT_L must be before ppbus?

SMBUS_SMC_4_G3H_SDA/SCL 3.4v PP20V_USBC_XB_VBUS 0v PP3V3_S5_SMC_VDDA 3.4v SMC_USBC_INT_L 0V ( When charger connected on the left side SMC_USBC_INT_L 0V but if charger connected right side its cycling 0v to 3.3v like USBC meter)

TBT SPI chip is shared between CD3215 and TBT Controller, so if you have damage around TBT area, it would be a good idea to disconnect TBT IC from TBT SPI (instead of desoldering just move straps between TBT IC and TBT SPI. TBT Rom is only necessary on the side you have charger plugged in. If...

TBT controllers already changed. no changes. now should i change TBT ROM also?

no ppbus isn't pulsing at all

LB700 and L3500 both have 0v

L3500 have 0.260

cd3215 change already tried 2 days ago.also measured and compared pins under cd3215( diode mode )

i don't understand somethings.please explain me CC1/2 must be before ppbus or not? if we have cd3215 problem why we don't have ppbus?

big coils also checked and diode mode compared to another board and everythig is ok only difference is LB700 my mother has 0.204 and another mother has 0.302

1) history (water damaged near ua900 and u1900 2) yes right side ports still cycling P_IN ( PPDCIN_G3H) 5v AUX_DET ( TBA_AUX_DET) 1.1V SMC_RST_IN ( SMC_RST_L) 3.4v VDDA/P ( TBA_VDDA and TBA_VDDP) 5V AUX_OK (SMC_BC_ACOK) 3.4V A/BMON (CHGR_AMON and CHGR_BMON) both are 0v diode mode...

as i said have all LDO's so 3v3_g3h also have. ok removed F7000/1 and C7050 have 0.1v

1) left side ports are 5v 0.03mah (not cycling) 2) right side ports have 5v 0.03mah ( cyling!!) all LDO's Present and are stable even 1.1v for all ports but CC1/CC2 voltage cycling very fast as i see with my multimeter it's cycling between 0.5v-1.9v (but it is average of course) tried...

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