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Hi and thank you for responding, I have tried SMC bypass mode and that does not work, is the correct way of doing SMC bypass by unplugging the laptop, holding the power button for 10 secs, plugging the computer back in while holding the power button for an additional 10 secs and then releasing...

Hey guys, I have here a 820-4924 with no power. Green then Orange light, when pressing power CPU heats up, then trackpad is clickable for a few seconds. then the trackpad is not clickable and CPU cools back down. I have tried original 60w magsafe 2, I have tried multiple charged batteries...

I will purchase from his store the chip and replace it, there was some liquid damage around the backlight area that was repaired, mostly the caps were burnt. R3772,R3771, U3780, were replaced. C8461 (and the other big ones were replaced) Another spot that gets hot is the u3900, not hot but...

Its the same usb c meter that rossmann uses and sells on his website. (https://store.rossmanngroup.com/inde...amp-meter.html) Thats what I am confused by, there is a faint light on the mouse, not super bright. I just checked for external video and there is none. I am not sure why there is no...

its not fully booting up so there cannot be external video?? also, if theres usb activity, such as light, doesn't that mean that cpu is not dead, but instead another chip not fully activating it? Are there are chips or points I should test?

USB C Amp Mete shows weird activity. Jumps between 20V & .12A to 20V & .09A Sometimes shows 20V & .03a

Hi guys, I have a here a 820-00840 missing ppvcccpu_s0g The USB-C meter is going from 5V to 20.5V and is pulling around .12A The fan spins, and the trackpad starts to click when pressed but is unable to boot I am getting USB activity, when plugging in a usb-c adapter with a apple mouse the...

L8930 PIN 1 - .9 V PIN 2 - .9 V L8960 PIN 1 - .9 V PIN 2 - .9 V Looks like I am getting Voltage, I also replaced GMUX with a new one from a donor board of the same board number and text on it. I am getting 0V on output on U9000 (LCD LVDS INTERFACE) Pin 1 - 0V (LCD_PWR_EN) Pin 2/3 (IN) -...

Alright, if I dont have a gmux from the same donor board (820-3330), is there any place I can get one such as a reputable online supplier or can I use one from the 2011?

Replace the connector, might be melted plastic/metal contacts inside causing a short.

Hello and happy new year! I will check that when I get back into the office, I did discover a bit of corrosion under the U9600 when removing the edge bonding, so I am currently trying to find a stencil to reball the old chip or I have to find another. Will a U9600 from a 2011 15" work on a 2012...

To test GPU voltage I check GPUVCORE_EN or GPUVCORE_PGOOD? I reflowed it but still nothing?

I was thinking about replacing U8900, do you think it might be the issue? Or does GMUX send those signals? Are there any voltages around the u8900 you want me to send you?

Pin 2/3 - 0.2 MV Pin 4 - 3.35 V Pin 6 - 3.35 V Pin 7 - 3.35 V Pin 38-40 - 0.02V Thank You!

Computer was very well taken care of, battery is in very good condition when it comes to cycles. Kept in a case, very minimal dust inside of machine. Nor any damages on any corner or surface of the machine. Both no image and no backlight, shined light from the back of the lcd, no blinking...

Hey guys, I have a 15-inch, Mid 2012 Macbook Pro that came in with no image and I tested it with a known good/working LCD (with working lcd cable too) and there is also no image externally through thunderbolt This is not the 820-3332 Retina model with the u8900 that needs to be retouched. The...