Joshua

Hi Matthew! Great question! (1) This issue IS fixable despite what the big bitten fruit may claim. (2) This issue will require more knowledge and tooling than a Pro-Tech kit alone. This repair will require board level diagnostics and micro-soldering to repair most likely - although it is certainly possible that replacing the display panel alone may resolve the issue. (3) I would advise testing with a known-good display panel and then proceeding from there. Cheers! Joshua

Hi Troy! It appears that a PSU for your Late 2015 27” Core i5 iMac can be found here for $74.99 used. Of course, Apple does not sell replacement units directly, so the secondary market (like eBay) is your only choice…

Hi James! Your mac is not seeing the operating system. This can be a failed hard drive or a bad operating system installation.

Disconnect the printer and check if both the cartridge and the printer are clean. Then put the cartridge back in the printer, if the error persists press and hold down the STOP/RESET button for at least 15 seconds.

IT seems likely that there is something wrong with one of the common factors - one of the things that is *not* getting changed. Is it possible that some of the grounding foil in the iMac housing is making contact with the board in a sensitive spot? Did you replace any removed polymide(?) tape…? Sometimes that magic tape is actually magic, lol… Also, do you have a photo of that original failed cap on the first logic board?

This is most likely a failed GPU. This unit is in the right age group and the described symptoms match pretty well.

Hi! This is repairable - the question is whether or not it can be done for a reasonable amount. Find a local shop with a good reputation that does soldering work. They should be able to give you a quote pretty quickly - as a comparison - we do any laptop power jack for $149 at our shop here in Portland, OR.

In the event of sudden loss of functionality, you likely have one of two things going on: (1) If the unit was dropped, perhaps the USB-C charging port has physical damage. (2) The M92T36 charging chip may have failed.

Sometimes the battery will swell in these causing the trackpad click to not work any longer. I’d suggest bringing it to any competent local shop (not Apple) for a quote.

Your battery is bad from the sounds of it. It may be saying that it is at 96% capacity, but it likely is not accurately self-reporting any longer.

The issue with the Home Button not functioning and "bricking" the device was not from 3rd party displays. It was from shops not transferring the Home Button to the new assembly. During restore or update the device would deliver Error 53. Apple has since modified iOS to not do this, so it is no longer the concern that it was. As long as there is not anything wrong with your Home Button, it will be fully functional on your device after the new display is installed.

The short answer is yes, there are suppliers who carry the adhesive. It can be difficult to obtain and may be tempting to go for a replacement from eBay or somewhere similar, but I advise to steer clear of unverified vendors. If you can get one from iFixit, I strongly recommend that you use them - especially if you're only purchasing one for a DIY project. If iFixit doesn't have them, you can get these from Union Repair as one option. http://www.unionrepair.com/replacement-f...

It is a really good idea to apply a bit of heat to this ribbon cable prior to removal. Ribbon cables that are held in place with adhesive can tear easily. Taking a moment to warm it up will help make the removal much easier.

It won't hurt anything.

Get a set of these precision screw extractors. I own a small electronics repair shop and I wouldn't be without them. If you buy them remember that the ends are reversible in case you dull one end. http://www.ifixit.com/Tools/Precision-Sc...

I believe that's the one he's referring to...

I have found that the easiest way to remove these standoffs is to loosen them with a 2.0 or 2.3 mm standard (flat) blade driver bit. Then, once it is loose, you can either loosen it the rest of the way, or for better control, insert your pentalobe driver into the center of it and loosen it the rest of the way. If your pentalobe driver won't turn it, then it is not loose enough, or the end of one of the small screws has broken off in it (actually fairly common).

Best of luck to you! Just ask if you need more info!

Great point! I had the logic board put back in and then found this little thing hanging out. I found a "tip" on a different site that showed it going between the rear-facing camera and the logic board! Thanks!

Yes! Thanks for this pic! I found this little piece in the body of the phone after I removed the logic board and was stumped! Real lifesaver!