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Get's a green / orange light as expected. PPBus = 12.59. P3v3_S5 = 3.33 PPVRTC = 3.33 I felt heat around L7095 the once time I plugged it in, but can't reproduce it again.

Sorry Duke, like I said, out of practise. I get a green light, but light goes out as soon as I connect a battery and never comes on if the battery is connected first. The fan does keep spinning if the battery remains connected though. Here are some readings I took; Resistance between...

wrong thread.

[SOLVED]820-2936 - Works on DCIN, works on battery, trips the charger if both connected. Obviously a dead short somewhere to trip the charger. Issue is that I can't work out how to track it down; not sure where to inject power. Board had many issues, I replaced U6900, Q5310, U7000 and finally...

Hi Guys, I'm back! :) but a little out of practice with the board repair thought process. This board, originally it came in with a blown ground trace on U6100 which I repaired. The repair ended up being abandoned at it found a new home as my shop computer. About two weeks ago I rebooted and...

Thanks, made a copy. Not sure where I got confused, guess I usually only backup partitions, never tried a whole drive before.

Is it possible to create an image of a drive that's encrypted? SSD, Filevault2.; obviously don't have the password yet. Want to finish the job but save the data in case customer wants it.

You need to measure some power rails to see where the issue is. We have nothing to go on until you do. SMC_ONOFF_L turns it on, so look for that. But it should auto boot or there is an issue anyway. Test with a known good charged battery too and make sure you're using a genuine 85w charger.

I replaced Q7261 and Q7260 because they were literally sizzling when power was applied. Short is on PP3v42_G3H

Something around Q7220 or maybe U7200 is getting hot. I've replaced both of them. Also removed and replaced Q7260/1 and it's still getting hot in the same area. No PP3v42 or any power rails really. It seems to warm up slowly but does eventually get quite hot which is making it hard to pin...

Can confirm it was the ram. Odd though, as the ram in there is the ram it came in with. Maybe the customer upgraded it then thought the drive had failed. Either way, fixed.

I think you guys are on to it with the RAM being an issue. Will confirm and report back.

I changed the drive to an SSD and now it's stuck on the loading screen (roughly 70%). Even using my known good test drive. Booting in verbose shows; "dynamic oem table load" Any ideas on what to check?

Thanks, Duke. I think mark this one as solved. There is no need for a headphone jack on this particular laptop. It only has a very specific purpose.

Yes, speakers work now. If I plug in headphones the sound goes off, but nothing plays through headphones. If I max the volume it play's a kind of static through the headphones that seems to go along with the audio that should be played.

No, I didn't. I was trying to fix it properly. Will remove it now and report back with the results.

U6700 appears to maybe be cracked. Can't quite see properly and I'm reluctant to pull it as it's a BGA and I don't have any new ones handy.

I have a very bad success rate of replacing them. Decided to go ahead and swap it out anyway and actually managed to successfully replace it, but still the same symptoms. Must have missed Louis' video. Will check it out.

The audio jack had taken a hit and was broken, so I removed it. Will the system still play audio through the internal speakers without the audio jack? Under System Report I can see the audio device. When I click on the speaker icon in the menu bar it shows v Digital Out and the volume is maxed...

Customer Said: "MBP is over heating and reboots often." Open case, MLB is missing a couple screws... Turn the board over, has one screw holding the heatsink on. /groan Of course, the board is an 820-2915; because they deal with heat really well. /s The thing is, this was done by another shop!