Search results

I have an A1278 Mid 2010 that is crashing randomly. AHT finds no issues. But when I bend the Macbook a litte bit it crashes instantly. It either freezes or the screen turns one color, either blue or red or green. One time after this happened I got three beeps after restart. I removed the ram and...

Hello, I have here a MacBook Pro 13" 820-00239 that does not turn on. The owner says it happend after he has plugged a fake charger. One of the USB-C ports is dead, the other three draw 5.12 V and 0.4 A. Under the thermal cam I can see three components getting warm: UB300, Q3200 and D6902. My...

Hi, i have here a MacBook Pro 15" 2009 with 820-2523-B that gets extremely hot. Of course I have already cleaned the vents and have replaced the thermal paste. With no improvement. I have also checked the heatsink with hot air and a thermal cam. It conducts heat normally. Still the MacBook...

Hello, I have here a MacBook Pro 2009 15" (820-2523-B), were the black color on screen shows green artifacts. When I bend the topcase of the laptop only a little bit, the artifacts disappear and black colors are normal. Very little pressure is necessary. When I release pressure, the artifacts...

I have replaced the keyboard on a A1278. Now the keys work, but the backlight looks terrible. It is very bright in the center but its lateral areas are very dim. I am pretty sure that I have aligned it well. What else could I have done wrong? Is there any way to fix this without buying a new...

I have a MacBook Pro 13" 2015 with a minimal liquid damage on the i/o board (820-00012). One capacitor was very corroded, after removing it the short circuit was gone. I would like to replace that capacitor, but I don't know its parameters. Are schematics for i/o boards available anywhere?

I have a 820-3476-A with fanspin but the CPU remains cool. When I try to measure ALL_SYS_PWRGD the fan instantly stopps spinning and the multimeter shows 0V. When I disconnect the power cable and reconnect it, the fan spins again. But when I measure the resistors R8169, R8165 or R8168 at their...

Hello I have a Battery "Service recommended" warning on a 16" 2019 MacBook Pro (A2141) in Big Sur. The Battery has 290 cycles. Coconut Battery shows the manufacture date 1979-11-30. I have upgraded to Monterey and there is the same issue. Then I've downgraded to Catalina and everything is...

The Geekbench score of this MacBook Air is very low, so I have checked clock speeds with HWMonitor / Fake SMC. It runs at a maximum of 800 MHz instead of 1.7 GHz. Another symptom is that the SSD write speed is low and it fluctuates. There is no liquid damage visible. I have checked the four...