Battery was drained, so I charged it and now no crank at all?

I did the reset again and still no crank. I haven't had any time to check voltage at starter trigger wire or anything else. In a diesel would you hear the injection pump like a gas engine? I hear a small click under the drivers under dash area but haven't taken it apart to find what is clicking. A relay I assume. I also haven't tried a high amp boost to see if it's the battery. It was charged to 12.7 volts but I'm not sure if it can handle a load. I'll keep you posted.

Tried a known good battery, still no crank.

I decided to trust my own skills and start with the basics. The battery terminal fuse block looked too rusted on some of the connections, so I decided to clean them. I found the 80-amp MIDI fuse was good out of the car but showed bad when bolted in place. After trying this three or four times I opened it up and found that bridge was broken on one side and made contact until it was secured. I replaced the strip and then tested for all power to the starter. I have 12v to starter and power through the signal wire. Upon direct testing of the starter, I found the solenoid was not activating at all. Even when removed from the starter. Replacing starter tomorrow. Just for kicks do you know how I can disassemble the solenoid to get at the electricals? Also, when the drive gear is kicked out manually it spins freely in one direction and tries to lock in the other, but I can turn it along with the armature in the motor? This is not normal is it, or would it lock when the starter motor is turning?

The nuts are removed but the plastic endcap won't come off to reveal the contacts and other electrical components. I'll be trying a new starter hopefully today, but I still want to open up that solenoid. I am familiar with the starter clutch but have never had one where I could turn the whole armature against the lock?