Chosen Solution
I did another replacement of capacitor C9560 on a 820-2850 board (2010 MBP 15” ), and it ran fine after with a fresh install with a High Sierra HDD. I used the cap I bought from Louis Rossman’s store, the oversized unit, and also had replaced the trackpad, which had been the only error showing in ASD after the surgery. I was ready to give it to a new owner, but upon inserting the new owner’s old SSHD (which had previously been in one of those infamous 2011 MBP with a 820- 2915), the 2850 did a panic again, even with the new cap. Are there other reasons to panic on these 2850 boards beside the cap? I’m currently running Disc Warrior on the new owner’s SSHD (which had previously been in the infamous 2011 MBP with a 820- 2915), and it showed 7 out of 10 in the optimization index. Could it be that the machine did the kernel panic just because I installed his SSHD which was subjected to kernel panics in the owner previous 2915? Another factor which MIGHT play into the crash of my freshly re-capped 2850 has come to light: The SSHD I had tried to implant into my freshly re capped machine had a " Logical Volume Group" Type, and a “Logical partition” format. Being the rookie I still am (for the time being) , I am drawing blanks as to what that means, other than that when I put my own “GUID Partition Table " formatted HDDs into the machine, it crashes no more… Can anyone shed some light please?
With the users SSHD installed re-run the Mojave OS Installer from a bootable OS installer USB thumb drive How to create a bootable macOS Mojave installer drive if I remember correctly this is how @mayer fixed his problems with SSHD’s. Also make sure you have the correct version of SSHD! The newest 2.5” version only runs at SATA III (6.0 Gb/s) unlike the older one which also ran at SATA II (3.0 Gb/s) had Auto sense technology the new one doesn’t!