Your battery is probably shot.
It should be reading 12.7 volts!
Just because you jumped the battery and nothing happened really is not indicative of anything except maybe a bad jump job.
The headlight is supposed to go out when you press the starter button. You say it dimmed? Makes no sense. More than likely it did go out!
If you disconnect your battery before jumping you may have better results but don't run the bike when you take off the jump cable.
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I went out and purchased a new battery and it still won't turnover. Yes, the headlight goes out when the starter button is depressed.
I hooked it up to my car battery without the motorcycle battery connected and still the same issue.