Chosen Solution
Hi there, A few days ago my MBP stopped responding while in use. I restarted it with the power switch and since then it keeps freezing a few minutes after startup. I tried as many things I could as I spend the last few days browsing forums. Booting in safe mode it still freezesthe apple hardware test did not reveal any issuebooting in recovery mode I checked the disk, the volume appeared to be okin the recovery mode there was the option of reinstalling Lion which I tried unsuccessfully as I would always get a ´unvailable check try again later’ messagewith the help of the original installation DVD I reinstalled os 10.6.7 but the problem persisted As I had been thinking about upgrading, I replaced the original hd with a new ssd, on which I installed os 10.6.7 from the DVD… still no improvement… still freezing after a couple of minutes(rainbow wheel spinning and mouse still tracking) So here I am a bit desperate and confused about what to do. I cannot do any update or download since it will freeze, cannot connect to Apple Store because safari is not updated. What kind of test could I perform to identify the origin of the problem? Any help would be appreciated ! Thanks in advance!
It sounds like you’re hitting a common issue with the MacBook Pro’s the HD SATA cable tends to breakdown over time as it gets abraded by the rough aluminum uppercase and/or the folds fatigue the foil wires inside. Here’s the IFIXIT guide: MacBook Pro 13" Unibody Mid 2012 Hard Drive Cable Replacement and here’s the part you’ll need: MacBook Pro 13" Unibody (Mid 2012) Hard Drive Cable. I strongly recommend you place some electricians tape when the cable rests in the uppercase to help prevent the rubbing on the rough surface. Also don’t over do the bends as the fold wires inside are fragile. I would redo your SSD’s drives format and re-install the OS again, then restore your files from your backup. If you’re still running Leopard (10.6.7) You should upgrade to at least El Capitan as thats the first release that supports TRIM services natively. Frankly I would just go up to Sierra 10.12.x If you jump to installing High Sierra you only have one choice GUID/APFS which is a new file system. If you want to compatibility with older systems you’ll need to install Sierra instead then you’ll have the older GUID/Journaled File System (HPFS).
