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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...

Customer is adamant and not ready to understand the issue. He needs a report from an apple authorised store which we are not.

What we can do in that case? iGPU faulty ? Or try reflow?

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...

Tried SMC ByPass Mode. Removed Q8150. Same Response PP5V_S0 still changing from 0 to 4.5 V. PPBUS_G3H -8.62 stable.

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...

i don't have the known good bios. Can you please provide me a link. Thanks

No previous repair history. New Board, no liquid damage. I checked with external usb drive which has a blinking light. no external video present. and PLT_RST_L is also present high.

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-...

Tried installing Window 10 but no luck same response. Booting properly without TPAD. But when connects TPAD, shut downs in few seconds and reboot.

do i Give Up or try something else?

No Luck tried both but same behaviour.

can i please get the fress bios for this machine? i tried to download from other sources that is having size problem keep saying does not match the chip size.

While only TPAD connected these are the values i get TPAD_SPI_INT_L- 3.32V TPAD_SPI_IF_Conn- 3.32V SMBUS_SMC_3SDA-3.32V TPAD_SPI_CS_L_CONN-5.1v PP5V4_TPAD_CONN-5.1V SMC_PME_S4_WAKE_L-3.2V SMC_ACTUATOR_DISABLE_L-3.2V KBD_INT_L-3.3V TPAD_SPI_MOSI-0V TPAD_SPI_CLK_CONN-0V KBD_I2C_SCL-0V...

Connected TP only. No KB. U4540 Pin 4- TPAD_SPI_INT_L- 3.32V U4520 Pin 4 - TPAD_SPI_IF_Conn- 3.32V these signal stays at these value. i didn't find any change.

didn't find any issue in that area. i am getting following values Q4530. pin 3- TPAD_SPI_CS_L_Conn- 3.28V U4540 Pin 4- TPAD_SPI_INT_L- 3.32V U4520 Pin 4 - TPAD_SPI_IF_Conn- 3.32V

Did the new MacOS install and PRAM reset as well several times. No boot loop with Keyboard connected and TP not connected. but there is no activity on keyboard.