PS1 #1: developed disc read errors and started damaging the label side of games
PS1 #2, 3, and 4: Disc read error
PS2 #1 and 2: Surprise, disc read error
PS2 #3: bought a pre-mod unit. started having the same issue happening again. Seller was at least willing to let me send it back for repairs. According to them, on the last day of testing, the disc drive itself shattered to pieces. Thus, they chose to eat the cost to transfer the chip over to another one and re-cap the console, which is...
PS2 #4: Somehow, still working after all these years.
PS3 #1: gouged dents into the bluray of MGS 4, so I was only able to finish the game... once.
PS3 #2: was already overheating at the XMB, and was at max fan launching ANY game or demo.
PS3 #3: my brother sent me his BC unit, and a new copy of MGS 4 from the bundle he bought with the money I sent him. Worked for about a month, before I started having "red snow" on the screen... effing GPU failure.
PS3 #4: Sent #3 to Sony, to the tune of $150 demanded from me. Given the reports that some people were sending in defective BC units and getting back neutered ones, I was concerned. Thankfully, did get another BC model back. Lasted me a good while, until Sony decided to ban my account and console. Weird, since I don't even play online; all I ever did online was sync trophies. Died from Ylod
PS3 #5: A rescued 20gig model I picked up that I was able to reflow back to life. Accidentally fubar the bd drive's sensor, and had to wait a while before I was able to find and get a replacement bd drive. Never took this one online. Yet just as I get it into FSM and was ready to undergo the process to re-marry the BD drive, ylod.
PS3 #6: my first slim. CFW, at least... but still missing functionality because it's a neutered unit. Everyone and their dog keeps saying I can load PSP games on it and those PSOne Classic eboots, but have yet to figure out how.
PSP #1: picked up a white go model. Amusingly, not only was it already on CFW but it already had some games I would have wanted pre-loaded on it. The proprietary connector on the unit got damaged somehow, and a part of it broke off, thus could no longer detect the cable. Nuts.
PSP #2: Exchanged #1 for this. Within a week, the charging cable also went back. Tried a new cable, and that worked. That said, the bugger was increasingly obvious it was too small for my hands. Eventually, the battery just wouldn't hold a charge or let me turn on the system anymore, so I gave it to a friend who claimed they still wanted it.
PSP #3: a more "standard" model I picked up. As trying to repair the UMD drive, and my soldering iron knocked off one of the caps and it refused to turn on again. This one, I can admit is my fault.
PSP #4: Broken screen and eventually wouldn't respond to the power slider, either.
PSP #5: Was in rough shape, finally found a good shell, but had a simultaneous failure of the screen and the touch bar (buttons below the screen won't register a press anymore). It'll turn on; I can hear it turning on, but I can only see a third of the screen and none of the button bar buttons work anymore. Probably just going to chuck it, idk.
PSP #6: My first PSP 1000 series, ever. And after some testing, the first ever PSP with a working UMD drive.
On the flip side, I've never had a new original Xbox, yet I've been able to successfully revive about four of them (two failures, but those I know I screwed up). My made-in-2006 Xbox 360 still works, and I was able to successfully revive another white model. I was about to try and revive an Xbox One S a neighbor was about to chuck out, but upon opening it, I found straight away that they somehow severed the HDMI port from the board; on the other, I was able to re-use the 2tb hdd it came with elsewhere.