For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.
Hi
got A2681 macbook air with keyboard and trackpad issue. track & keyboard are intermittent. When device goes in sleep mode for a long time, KBD/TP stop working. But both start working if i shutdown and restart system. i have tried a new trackpad and cable aslo but same problem. device and...
Hello,
I recieved a A2289 board number:-820-01987-A. it was getting hot as told by customer. technician found full of dust inside and fan vent was aslo blocked. technician did a clean with air compressor without remving the board. after clean tried to test it again, it booted up normally to...
Hi
got an Macbook Air A1466 820-00165-A. Initially found liquid damage on U3210 and near C3286. replaced it and cleaned.
but there was still no life. i can notice a pulse when switch on the power supply. current goes to normal 350-400mAmp just for 0.5 second then goes to zero and again one...
Hi
Got A1707 820-00928-04 stuck at 5V.
found little moisture around U3500 but did not find any damaged or shorted component.
UB300 and UB400 are providing stable 5V but U3100 and U3200 are fluctuating between 1.65 and 5V in every 6-7 seconds.
I have tried with known good controller but same...
Hi
Got an 2020 macbook with no display. checked with external display but no luck.
there is a usb activity, i can see led light in a usb mouse. No Caps lock light.
CPU getting warm and stucked at 200mAmp. Some time goes to 950mAmp when startup but return back and stayes at 200mAMP
PLT_RST_L...
Hi
MAcbookPro 820-00138-A has no image/display, only once i got just backlight flash. CPU is getting very hot. No external display.
PPBUS_G3H-12.67V
Getting PP3V3_S5- 3.3V
PP5V_S4- 5V
L7330, L7320, L7310 has 1.7V and 12 Ohm.
PP1V5_S0- 1.5V
PM_SLP_S4_L- 3.3V
PP1V35_S3RS0_CPUDDR- 1.35V
PP1V05_S0-...
Hi
Macbook A1707 820-00281-A have boot loop with internal KB and TP. But it boots normally without KB and TP. External KB and mouse works fine. I also checked with new Topcase with new KB and TP but still same issue.
There is no liquid damage on the board, looks very neat and clean. I have also...
Hi
Macbook Air 820-01521-2 has no display with battery. i have checked with different battery also but got same response. i am getting display on external and internal both without battery.
there is no liquid split sign on board or damaged component. Also checked with two different good screens...
I got a liquid damage 820-4924-A. It was corroded near U7600 and U8330. And initially was stucked at 120mAmp. After cleaning replacing R8185, It stopped taking 120mAmp but now when power on takes 180-220mAmp for 1 second only then goes to zero. i also check at same time it produces S0 rails and...
Hi
I have this Macbook 12" with keyboard problem. keyboard was sticky not always. some time it wouldn't worked. i thought the keyboard would be the issue but new keyboard also does the same thing even with new track pad. i have done SMC reset and PRAM reset. i have no idea what is this weird...
Hi
This old machine is not turning on. I did check the voltages which i found normal except PM_SLP_S4_L. when i tried it in SMC bypass mode. It start booting but didn't properly. I had apple logo screen with boot bar and it kept rebooting in SMC bypass mode. PM_SLP_S4_L is coming from U1800...
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...
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...
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...
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...