Macbook PRo will not boot, MagSafe adaptor light does not work !

Okay... so i have this issue with my MBP where it will not power up.
The light on the magsafe does not show up at all when connected to the MBP. I have tried another magsafe but failed. I have not tried another battery so im not sure if that is wheret the fault lies.
Ive tried the SMC reset holding the power button down for long, but still no result. However, i left the MBP disconnected from the magsafe and went out for the whole day. Came back, connected the magsafe and thought id try again. I held the power button for 10 seconds and the MBP started booting. It wasnt the normal boot im not sure if it was performing some sort of safe boot, but it was doing something, the screen turned transparent white, restarted and i could finally log in. The battery was very low so i left it on charge with magsafe.
One thing i have noticed is that sometimes i wont get the light showing on the magsafe but it may still be charging at that point.
This morning i wake up and its the same issue all over again. It must have stopped charging or something as i left the MBP on with magsafe connected. Now it will not turn on no matter what i do.
If i tilt the magsafe connector at an angle i can see a dim green light but then id have to hold it in that place to see that light.
Please advise on what i should do next. Excuse the long story !

Hi s.cheslik,
It seems your MacBook Pro will not boot properly and it displaying an error message. Based on the information you have provided, it appears your MacBook Pro needs to be serviced. The following link should help you get started with the process and has links with additional information on topics such as warranty and service pricing, battery replacement, and express replacement service.
Apple - Support - Service Answer Center
Thank you for contributing to Apple Support Communities.
Take care,
Bobby_D

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HT201295 Late 2011 Macbook Pro refuses to boot. SMC reset doesn't work

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Is it a 15" or 17" MBP? There have been logic board issues with that model.
https://www.ifixit.com/Device/MacBook_Pro
For all models.
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https://www.ifixit.com/Guide/MacBook+Pro+13-Inch+Unibody+Late+2011+Battery+Repla cement/7649
So only do this through step #3!
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Start time: 17:07:42 08/25/14
Model Identifier: MacBookPro8,2
System Version: OS X 10.9.4 (13E28)
Kernel Version: Darwin 13.3.0
Boot Mode: Safe
Time since boot: 10 minutes
Battery
Condition: Replace Now
Diagnostic reports
2014-08-25 UserEventAgent crash
Log
Aug 26 00:41:52 Previous Shutdown Cause: -128
Aug 25 16:23:38 smb1_treeconnect_internal: Malformed tree connect with a bad word count! wc= 2
Aug 25 16:24:05 process rpcsvchost[94] thread 917 caught burning CPU! It used more than 50% CPU (Actual recent usage: 99%) over 180 seconds. thread lifetime cpu usage 100.014147 seconds, (82.533432 user, 17.480715 system) ledger info: balance: 90006319931 credit: 100003230498 debit: 9996910567 limit: 90000000000 (50%) period: 180000000000 time since last refill (ns): 90079246240
Aug 25 16:25:50 smb1_treeconnect_internal: Malformed tree connect with a bad word count! wc= 2
Aug 25 16:58:05 jnl: b(1, 3): replay_journal: from: 9340928 to: 9773056 (joffset 0x37a000)
Aug 25 16:58:05 jnl: b(1, 3): examining extra transactions starting @ 9773056 / 0x952000
Aug 25 16:58:05 jnl: b(1, 3): txn starting at 9773056 (9773056) @ index 80 bnum 2696544 (8192) with disk cksum != blhdr cksum (0x93b69228 0xc647562)
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Aug 25 16:58:05 jnl: b(1, 3): replay_journal: from: 9340928 to: 9773056 (joffset 0x37a000)
Aug 25 16:58:05 jnl: b(1, 3): journal replay done.
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<dict>
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<string>com.apple.airport.agent</string>
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