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Hi i got a macbook air 820-00165-Awhich is stucked at 480mAmp. Board looks fine. i didn't find liquid or corrosion damage on board. Even i didn't find any burnt component or loose soldering through visual inspection. Then check some voltages and found everything normal. From PPBUS_G3H to CPU...

Hi I have a 820-01041 Board. Previously it was having liquid damage one CD3215 and both ports were burnt out. After replacement of both port and one CD3215, it started working and i was getting 20V and normal current without battery. But after some one of the new Port burnt out suddenly and...

I have tried cleaning the ME region but the problem has not solved. it still does shut down and takes ages to boot. I have also tried with different BIOS chip but it also does not made any difference. can you please provide me the good BIOS for this board?

Hi I have an macbook pro 820-3332-A. It has following signal present:- PPBUS_G3H PP3V42_G3H PPVIN_HS_Computing_ISNS PP18V5DCIN_ISOL But 5V rails are not present. when i traced the problem then found that on U7201 P5VS4_EN and P5VS5_EN are not present. But PP3V3S5_EN shows 2.9V. Then i found...

Can we replace the BIOS chip as well? should i try for this ?

Thanks for support and guidance. I tried it again with a different SMC from donor similar board. And it start working everything. Thanks again. i think previous SMC was from 820-03437-B. This is my first SMC replacement. Its boom........Great... Thanks Louis..

I checked voltage at some points, here it is:- U8040-Pin 6--3.2V Pin 2,4--1.5V Pin1,3--1.5V P1V5SOSW_Audio_EN--3.2V i think it should be 1.5V f i am not wrong.

It shuts down in boot menu also some time and even during loading the OS at apple logo bar. I tried to read the Bios but it say chip is empty. even not completing the write on BIOS chip.

Good Day Macbook Air 820-00165-A came for repair. It was badly rusted near SMC so I tried to replace the SMC. But After SMC replacement every thing works fine except sound output. i have tried new speaker and I/O board and SMC reset. I have no idea where to start for this problem. I did visual...

Thanks for your quick reply U7100 was short with pin 41 PPVIN_S0_CPUVR_VIN so i replaced that i am getting CPUCORE_FCCM-2V but no response at other points. i don't have list of power rail in the schematics. i checked randomly these power rail. PPVCCIO_S0_CPU---0.9V PPVCC_S0_CPU--0V...

Hi I have a MBA 820-00165 in with liquid split on it. It’s been liquid damaged for long time before he brought in. I cleaned and did visual inspection and found backlight section damaged. I replaced the backlight Ic, LVDS connector and jumper from pin 8 to Iset resistor. It came to life back...

Hi I have a MBP 820-01598-A with liquid damage. I tried by cleaning and replacing some damaged or rusted components and finely it start taking 120-150mAmp but no image and no chim. Then i got to know that CPUGT_PWM1 and PWM2 are not present on U7410 & U7420. Then i check U7100 which looks good...