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現在のバージョン作成者: Dan ,

テキスト:

If the systems battery tester is showing only a few or no LED's that tells me the battery is drained. This could be caused by a few issues besides a dead battery. As you stated you disconnected it and the system still won't boot (using the power pads as well) we need to focus on the MagSafe adapter and the AC power side of the issue.
 
* What is the color of the MagSafe adapters LED Amber or Green?
* Do you have a second MagSafe unit?
 
Follow this Apple T/N to inspect the connection and to make sure you have the correct unit: [https://support.apple.com/en-us/HT203207|Apple Portables: Troubleshooting MagSafe adapters]
 
* If that all checks out then you likely have a logic board level issue which will need someone with deeper skills and access to the needed parts.
* If you note the systems connector is damaged then you may need to replace the MagSafe DC-In Board. Follow this IFIXIT guide: [guide|7525|MacBook Pro 15" Unibody Late 2011 MagSafe DC-In Board Replacement] I'll warn you its a bit of work.
 
One issue which is rare is a bad battery tester (shorted) you might want to disconnect it to make sure thats not your issue. You'll find it here in this guide on Step21 [https://www.ifixit.com/Guide/MacBook+Pro+15-Inch+Unibody+Late+2011+Logic+Board+Replacement/7518]

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編集者: Dan ,

テキスト:

If the systems battery tester is showing only a few or no LED's that tells me the battery is drained. This could be caused by a few issues besides a dead battery. As you stated you disconnected it and the system still won't boot (using the power pads as well) we need to focus on the MagSafe adapter and the AC power side of the issue.

What
* What is the color of the MagSafe adapters LED Amber or Green?

Do

* Do
you have a second MagSafe unit?

What
* What is the color of the MagSafe adapters LED Amber or Green?

Do

* Do
you have a second MagSafe unit?
 
Follow this Apple T/N to inspect the connection and to make sure you have the correct unit: [https://support.apple.com/en-us/HT203207|Apple Portables: Troubleshooting MagSafe adapters]
 
* If that all checks out then you likely have a logic board level issue which will need someone with deeper skills and access to the needed parts.
* If you note the systems connector is damaged then you may need to replace the MagSafe DC-In Board. Follow this IFIXIT guide: [guide|7525|MacBook Pro 15" Unibody Late 2011 MagSafe DC-In Board Replacement] I'll warn you its a bit of work.

ステータス:

open

オリジナル投稿者: Dan ,

テキスト:

If the systems battery tester is showing only a few or no LED's that tells me the battery is drained. This could be caused by a few issues besides a dead battery. As you stated you disconnected it and the system still won't boot (using the power pads as well) we need to focus on the MagSafe adapter and the AC power side of the issue.

What is the color of the MagSafe adapters LED Amber or Green?

Do you have a second unit?

Follow this Apple T/N to inspect the connection and to make sure you have the correct unit: [https://support.apple.com/en-us/HT203207|Apple Portables: Troubleshooting MagSafe adapters]

* If that all checks out then you likely have a logic board level issue which will need  someone with deeper skills and access to the needed parts. 
* If you note the systems connector is damaged then you may need to replace the MagSafe DC-In Board. Follow this IFIXIT guide: [guide|7525|MacBook Pro 15" Unibody Late 2011 MagSafe DC-In Board Replacement] I'll warn you its a bit of work.

ステータス:

open