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Macbook A2338 PPBUS at 12.3V PP3v8-AON is 3.8V 3v3_S2 is 3V 5v_s2 is 0V 1v25_s2 is 0V PP3V8_AON_MPMU_ISNS_VIN is 3.8V PP1V5_VLDOINT_MPMU is 1.5V PP1V2_S2 is 0.2V PP3V3_S2_UPC is 0.2V PP1V8_AON_MPMU is 1.8V MPMU_VREF_ADC is 0V

These 2 are OL as well on my board but on a good board they have diode readings . ( I didn't check further) Should I just remove the connector and run jumper wires left to right or replace the connector ?

Ran a jumper from PP5v_s4 to PP5V_S4_P2V7NAND_LB (Not at the life boat connector) Now get all the necessary voltages. still the ssd will not show up.

5v_s4 on left side is present.

Voltages of SSD Side of J9600 PPVIN_2V7NAND_LB is 13V PP5V_S4_P2V7NAND_LB is 0V SSD_BOOT_LB_L is 1.8V SD_PWR_EN_LB_L is 0V STORAGE_LB_EN is 3.3V SSD_RESET_LB_L is 3.3V SSD_PCIE_CLKREQ_LB_L is 3.3V PCIE_SSD_D2R_LB_P<0> is 0V PCIE_SSD_D2R_LB_N<0> is 0V PCIE_SSD_R2D_LB_C_P<0> is 0.8V...

I have 0.8 Ohms between 43 and 44

I get 13V at PPVIN_2V7NAND_LB is that ok?

I am still unable to understand.Please guide me

Continuity Left/Right Means Resistance across pins on left and right lines. 45/46. 45/46 is 7.4M Ohms 43/44 is 6M Ohms 1/2 is 400k Ohms 4/5 is 1.7M OHms 7/8 is 100 k Ohms

PP3v3_g3h was shorted. Injected voltage and remove the cap. Now its flashing the question mark folder. R9350 and adjacent are okay. Checked every other thing in repair.wiki. How can I ensure dead NAND?

Please reply

No it's not pulsing. EDP_PANEL_PWR_EN goes upto 3.3V very briefly.

SCL/SDA Didoe Mode 0.557 Voltages 3.4V Resistance Across Pins of U7100 17/18 is 3.5 Ohms 27/28 is 20Ohms

5V_SW_LCD is constant 5V 3v3 is 0V throughout

Yes.

Only Charger 3.1V Only Battery 0.3V

Removed the WIFI IC. Short gone. Machine boots now. I get chime and external video but no internal image or backlight . NO IMAGE and NO BACKLIGHT. UP701 was burnt and was replaced . I had to reconstruct trace for EDP_PANEL_PWR_EN. I get 3.3V there very briefly before it goes down to 0V. Tried...

all shorts removed. Still wont turn on.

Device came in with intermittent shutdown and not charging issues. Found R1955 /R1650 / R0620 all corroded. Replaced them. Now the shutdown issue is gone but the charging issue remains. Device shows battery charging when charge connected but the percentage will not increase. Restart the machine...

All findings are with board on desk. Currently 3v3_s2_WLBT_ISNS is shorted. Injected voltage. IC suspected