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I have a fully working Early 2015 820-00165 running MAC OS high Sierra When I boot from my USB installer drive in an attempt to upgrade to Catalina I have noted that the CPU gets hot Fan spinning but this CPU is hot The install does not appear to be hanging but I started to get alarmed at how...

I agree.

ALS is dead no keyboard response to bright light Swapped out a new KNOWN WORKING display assembly. The error persists and the ALS is still not functional. Check this post out: https://boards.rossmanngroup.com/threads/820-00165-there-might-be-an-issue-with-the-camera.50889/ ?U5620 I will be...

yep did that correctly also cleaned the ME! i am so happy this thing boots up ! i did it correctly!! Machine boots fine should i ultrasonic this thing there is flux on and in the camera connector from when i replaced it maybe crap in the connection? or i can try a whole new display assembly...

OK did it. Mac boots up but NDC001 camera error persists I do have another full display assembly that I can swap out if it is in fact the camera itself that is the issue.

OK I did the following: new BIOS from here: https://www.badcaps.net/forum/showpost.php?p=826350&postcount=8 That was a MBA 2015 820-00165 BIOS I think replaced ssn replaced hwc Got correct new checksum and replaced old checksum Please tell me if I did it right. I have the OLD BIOS .BIN...

DO I need a 2015 820-00165 BIOS or will a 2015-2017 work? Machine is 2015 MBA

OK I connected the Medusa to the MAC Copied MAC ROM to Medusa Connected the Medusa now to my TL866II Read the Medusa ROM and saved a .BIN copy to my PC I now have a backup copy of the FULL ROM on my PC Now how do I get a copy of a known RELIABLE SAFE good BIOS for an 820-00165 (Google?)...

there is a cleaned ME BIOS on mac now (i just cleaned it) next step... copy BIOS to Medusa from MAC flash Mac with the same copied BIOS from the Medusa? seems kind of circular? And that can explain an NDC001 error?

this is stupid but with a cmi zapper should i copy the mac rom to the medusa then reflash the bios with the copy from the medusa?

Cleaned it Same issue Install the OS again?

yes

OK informaticos 820-00165 Machine boots into OS now WORKS FINE Ran Apple Diagnostics NCD001 there may be a problem with the camera Camera works fine. I replaced J4002 since I had nicked it when replacing a fan connector Again, camera works fine. Boots into OS. C4013 measured 14 UF but...

it is fine now except that when i replaced a damaged fan latch i think i nicked and melted the edge of the camera connector it boots fine, runs camera works but diagnostics say there “might be something wrong with the camera” im pretty sure that something is my clumsiness in touching it with...

but camera seems to work. what is ndc001? thermal sensor?

After cleaning and new cable, problem solved. Thank You.

Tried it with a USB connected SSD with pre-installed Mojave. Boots all the way to the login screen and thats where the cursor freezes. The board is cleaned now and is being dried.

This is a stupid question but I have a 820-00165 that boots to the OS but strangely loses the trackpad at the login screen. I was trying to install OS X Catalina on a repaired machine off a USB drive installer that I have used many times. The trackpad works at this point. Its when I get to the...

genius! changed C7095, green light, no fan spin next changed R7095....fan spin!!! boots into OS spent another 1/2 hr changing a fan connector with a missing latch but it now works!!!! thank you!!!!!!!

Remove C7095 and not replace it? What do you think is going on? this is a feedback line correct?