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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...

PPBUS at 11V pulsing between 11V and 12V. PP3V8_AON is 3.8V Unable to enter DFU with key combinations. Jumper method wont work as S2 lines have 0.3 to 0.5V. PP5v_S2 is 2.3V and pulsing 3v3_s2_LDP is 1.3V Bad CD3217?

Customer Saying that the Macbook had crashed . He tried restoring but the machine turned off. Now when it came to me I don't get anything on screen. PPBUS is 8.6. 3v42 present. PM_SLP_S4 present. Fan spin is normal. Drawing 500-600 amps. Thermal cam shows U2800 and U7400 very mildly heating up.

I get the chime and then loops and chimes again. Amp Meter is constant at 20V. Only the amps drop and rise accordingly. Tried DFU Revive. No Solution

820-00165 PPBUS was at 8.2V. I replaced the SMC. still PPBUS at 8.2V with fan spin high. No MagSafe light

there was some moisture under the SMC. I replaced the SMC. Fan always high. no MagSafe light. no battery being detected in settings. I assumed smh was from a different model. so I went ahead and flashed it as well. still the same. SYS_DETECT_L on diode mode readings is 2.7. As soon as I plug in...

Device is dead. If I disconnect the trackpad flex. J8401. Machine turns on. Tried with another trackpad as well. Still the same.

Taking 800 amps and pulsing. Fan spin. Green Light on MagSafe. How to go about this ?

Device came in with Question mark . It goes into internet recovery and I am able to format and go for re installing the MacOS. but the device heats up and shuts down. No dirt or corrosion on the board. Please help. Tried DFU Restore/Revive

MagSafe Stuck at Green Light. PPBUS was at 8.19V Reballed the SMC. PPBUS now at 8.6V but still stuck at green light. Reballed U1950 as all pins were pulsing. But still the same. Should I change U1950?

PPBUS not shorted. PP3V42 not shorted. No Green light on charger. ON PSU 18V5_DCIN is 15V Adapter_SENSE is 0V On 85W Charger 18V5_DCIN is 1.8V Adapter_SENSE is 0V

PPBUS shorted. Was checking resistance of big coils. L7960 Shorted. 0.002 diode to ground. Removed L7960. PPVCCIO_S0_CPU is shorted. BAD CPU?

PPHV_S0SW_LCDBKLT is 0V. Checked all Pins of the connector. No Shorts Getting Same value on both sides of the Backlight Fuse. 8.5V PPVIN_S0SW_LCDBKLT_FET is 0V.

Using Schematics of 820-02918. Amp meter goes upto 20V stays for sometime with good amp pull and then reboots. PP1v8_touchid_filt_conn was shorted due to a corroded cap. Removed and short gone. Still the issue persists. PPBUS shows 13.3V with just battery/trackpad and display connected. PPBUS...

Customer tried formatting and it failed. Now it will only go into internet recovery whether I press any key combination. It will not boot up from an external drive as well. I getter error 2005f 2002f. What should I do? I tired disconnecting the Touch ID and also the small board as well. Still...

Device was water damaged. PP3v_s2 was shorted. Bad caps near the wifi ic. Removed and issue resolved. Now the device is having intermittent backlight issue. When no backlight PPVOUT_LCDBKLT is 50V When Yes backlight PPVOUT_LCDBKLT is 43V It is random but I found that disconnecting and...

Device has partial backlight and the light flickers as well. Tried a known good display. its the same. PPHV_S0SW_LCDBKLT is 25V. so that is fine. What can be the issue here ?

PP3v3_g3h is found shorted after removing R6915. Injected 2V it draws upto 2AMPS but nothing gets hot on my thermal cam.

Device came in for no wifi. U3540 was heating up. Replaced - Issue resolved. It came back again after 2 weeks. Replaced U3540 again and it was fine. It has come back again. I seem to miss something. Nothing heats up now. Voltages at U3540 Pin 7/8 are 0V. Pin 2 is 0.6V. It should be higher I...

Device came in with no backlight. Some corrosion under UP800. Cleaned and reballed the same ic and it started working. it worked for 10 days but again backlight gone. I replaced the ic but when I am replacing the ic the bird gets stuck at 5v. the ic is fine as installed that chip on another...