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Yes. Bluetooth working fine

I've got this one that isn't detecting wifi most of the time. Eventually on some boot-ups it is working. Something like 1 of 50 times it is discovering the wlan card and working. But after reboot and for the next many many reboots says "no wifi hardware installed" No liquid and no corrosion to...

This 820-00165 came in dead by a small amount of water Bad corrosion on U8005. Pulled and replaced U8005 with new one and wired pin1 to C8005/p1 as this trace was burned. Also replaced C8005. Now there is no fan spin, and all pins (PP5V_S0, PCH_HSIO_PWR_EN, PP1V05_S0, PP1V05_S0, SW_PCH_HSIO)...

Is it only on the login screen this thing happens or have you tried logging into the system and make a reboot?

It has T4 torx

Microphone is different. Trackpad is different. Trackpad can be switched but the microphone won't fit as 2013 has dual mics where 2012 just has one. The microphone cable is also completely different.

It sucks already :-) I've been looking at all components on this board on maximum magnification for hours :-)

Yes it does. 3.4V

Pulled SMC and measured termination resistors and traces all the way to the site. They are all good. Replaced the SMC with another one. Still same symptoms :-(

Liquid damage that was cleaned by somebody else. When power on fan spins - then stops - then spins again and slowly ramps up and keep on spinning On first fan spin there is 3.2V on pin 5 (SPI_MOSI) and 6 (SPI_CLK) for 2-3 seconds but then drops and does not come back on along with the next fan...

Compare the drawings of your FET to this one http://www.infineon.com/dgdl/irfh3702pbf.pdf?fileId=5546d462533600a40153561a25871e76 The original drain-to-source diode in the schematics has a shotkky diode (drawn with an "S"-formed line next to the arrow instead of a normal straight line which...

Try using the Q2-part of the FET as it has shotkky diode.

I had the same model couple of months ago with exact same symptoms. It was crap under PCH in my case so check that also.

Time for a break... ;)

Had the same issue a while ago. It was the Q7870. I did not have a FET in same package so i used one from another board and mounted it upside down with wire and conformal coating due to the customers impatience. Customer never came back. If you use an alternative FET then remember it must have a...

Can you do PRAM reset? Can it boot to boot manager? Are you getting padlock symbol when booting to bootmanager? If so could be firmware-locked and missing OS or damaged OS. Then get firmware-password from user or remove firmware-lock from BIOS

Beware of the ones with thermal paste on them. It's not good to put it in the ass! - Ehm... I heard :D

I've also got a bunch of customers who wants to run windows on their macs. I usually just use boot camp and keep the OSX partition relatively small and set it to boot from windows as the standard start disk. Then I always got the Mac OS available for trouble shooting when they have issues. They...

R7180 was open. Replaced and solved. Thanks guys

17/18: 2.9 ohm 27/28: 20.12 ohm