Cannot start after swapping out Seagate 1TB HDD with 2TB SSD Hybrid
My native 1TB HDD had developed quite a few bad blocks and the number seemed to be increasing, so I replaced it with a 2TB SSD Hybrid. Before doing the swap, I put the new drive in an external enclosure and used CarbonCopy Clone to copy the old HDD to the new SSD. That all went well and generated a bootable SSD so I proceeded with the exchange. Old and new drives are Seagate, so I assumed the temp sensor would be fine and didn't replace it. I used the excellent IFixit guide to do the swap and the drive went in exactly as shown in the guide. I had a little difficulty hooking the four cables that connect the LCD screen to the computer, especially the flimsy Vertical Sync cable with the four foil ribbons. I wound up using a small piece of double-sided tape to keep the ribbons separate and aligned and attached to the plastic strip on the cable. After finishing with the LCD and glass screen installation, I hooked up all the external connections and tried starting the computer. Nothing happened.
My question is this: If one or more of the LCD attaching cables is not hooked up correctly, which one or combination would prevent the computer from starting? Or does it sound like I may have missed something? Is there some way for me to troubleshoot to find the culprit or is it time to call in the pros? Thanks in advance for any help you can offer.
Is this a good question?