Search results

Has anyone else noticed the board view labeled 820-01987.bvr doesn’t seem to match the board? Been looking at the PMIC lines to see what could be shorted and a lot of the component locations don’t match the board. Especially test points. Noticed 3 test points are reading as ground when they’re...

Hi all, Need some assistance with a 1987. History is its chassis was completely crushed trackpad and screen were shattered not sure how but it seems like it was ran over. Board visually seems fine doesn’t look warped no visible cracks in anything board side. went through the power sequence...

Ah of course sorry didn’t think of that. We’ve replaced the ssd, they actually had a hp ssd in there already so we replaced it with a Samsung. is there any particular test that seems to trip up the question mark folder more than others? We ran unigine overnight to try get it to fail but it’s...

Hi, quick question for the a1278 can you use any sata ssd for them or do you need to use a particular model? I know the a1502/a1466 you have to use a transcend jet stream otherwise you will have sleep issues, so I wanted to make sure the a1278 isn’t similar. we’ve gota a1278 in atm with the...

Hi all, we’ve got a 2021 MacBook Pro 14 inch in with coffee damage. There was not really any corrosion luckily just a bit of sticky residue over the passives around the hdmi area. I cleaned all that up checked and there seem to be no shorts on the areas with the liquid residue. Caps aren’t...

Yay it’s solved! I managed to get the Mojave installer as Mac world have an article with direct links for basically all the App Store pages so I was able to download it and install Mojave onto a usb. For some reason creating the boot stick though did not work using the instructions on the above...

Thanks for that. I’ve found direct links to the App Store for installers for Catalina so I’m going to try create a usb with that and try a usb recovery that way see if that works. If not I’m assuming all the usb c machines offer the same features in regards to repair? Should I avoid T2 models...

Unfortunately the right key did the same thing. Just goes to the question mark folder. Is there a way to “force” the App Store to give you software os upgrades? I would at least try a usb drive recovery but whenever I use our 2012 pro through about this max > system upgrade > it opens up the...

One other thing to mention what would cause the option key to try boot off an external drive not work? I’m told it should fall back to recovery mode if it does not detect a bootable disk when holding option but it’s not it just loads the question mark folder and gives the generic...

I tried hooking up the a1708 to the 2012 machine with a c to a cable hoping I could try use apple configuration or iTunes to restore it but the 2012 laptop just brings up a “thunderbolt accessory not recognised please disconnect and connect to the thunderbolt port”. We unfortunately don’t have a...

Does the late 2011 pro support connecting to newer machines? I thought it had to be usbc to usbc? We don’t have an apple usb a to c cable so I’ll try a third party but I doubt it will work.

We don’t have another ssd to test. Tried internet recovery yesterday unfortunately same error, tried it again just now and same error. When we try reinstalling it does create the partition so when we try again should we go in and delete the partition or leave it? We’ve been deleting it each time...

Hi, I need some assistance in troubleshooting a A1708 who doesn’t want to re install macOS through internet recovery. It gets all the way through than gives “ MacOS “Installation Failed, An Error Occurred While Installing”. Last week a friend of mine decided to factory reset his laptop as he...

Looks like something on PPBUS_G3H is shorted. I removed R5400 to isolate S5 isense from PPBUS and found diode mode of 0.06 where S5 isense is 0.4. Is it safe to run the board with that current sense resistor removed to do some voltage injection or should I reinstall it?

Yup genuine magsafe 2 85W charger. I don't buy counterfeit chargers after seeing what it did to a customers Bose QC30s. Fake Chinese chargers melted the micro USB port and the plastic around the port. DC in board is a bit iffy though, waiting for my replacements to arrive so I have not tried...

RTC_RESET_L = 3.41v PCH_INTRUDER_L. = 3.149V

Didn’t trace it back just saw the annotation and took its word for it. I’m struggling to find a decent PDF viewer, the one I’m currently using has a nice bug where if you zoom in it shoots down 5 pages so I normally zoom into a level I’m comfortable with and can read things, than just use the...

Hi All, Just wanted to see if I can get some assistance on a A1502 820-4924A I'm working on. Charger I'm using is a 85W magsafe 2 (straight from the wall not through a bench PSU) bought and used on two 3437s I was trying to fix so that should not be the issue. Board looks spotless zero signs...

Ok thanks I’ll take a look.

All the caps and chips on 3v3G3H have been removed, only things which are still in place are resistors as they do not have a connection to ground apart from the current sense resistor which does and was removed. I did try voltage injection but only with IPA, haven't bought a thermal cam yet. I...