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I attached my apple logicboard to an alligator clip and a metal piece, I sent the black ground test lead of my muliteter to the metal sheet and once I placed my red multimeter lead to an inductor and ceramic capacitor the laptop motherboard zapped and has no power. How do you guys test the...

thank you I will try that.

thank you for all of your help, I figured out the issue, it was the efi it was stuck in some hang up mode I used a jtag programmer to kick it out of this weird state. How do I mark this as solved?

Good evening, Louis I got the tl866 programmer and the sop8 Adaptor, how do I get you the bios dump? I installed the software and drivers and hooked up the programmer to my pc laptop. -thank you

Magsafe is working I tried it on know good laptops, no pp3v42, no voltage on ppbus_g3H

I have a macbook pro 15" laptop that has no power there is no green or amber light, what are the signs of bad smc chip?

Thank you, I will send you the bios dump once i receive the bios reader in 2-3 days, I appreciate your help.

A curious question, can this programmer read smd efi chips that have no legs?

I apologize about that, I thought you were requesting the schematic . I will get the bios dump for you, I really appreciate your help.

How do I get the BIOS dump?

Should I upload the schematic and boardview files on here?

No Title Update: I see the store who had the clients logicboard, clearly sodomized it.The EFI chip's two solder pads are lifted and missing on solder pads 7 & 8. Where do you think I can jump two copper wires to under to make connection?

The flux I used is top quality from MG Chemicals

Yes the chime was present when i had the original efi chip in there.

Good evening, there is no chime with the original efi chip back in the logicboard. I left solder flux on the logicboard, do you think that might've shorted something?

What do you think the issues is?///// thank you, -Mike

I haven't checked the CPU Vcore yet, I will check that and get back to you. thank you for your response and help.

I truly appreciate your response, I took the bottom cover off and press cmd+option+p+r and I noticed the fan turn off and on what it does when there is no chime. I put back the original chip and it does the same thing. It seems like the ebay chip has done something to the logicboard. The chime...

Apple MacBook Pro 15" A1286 i7 2.3GHz Logic Board 820-3330-B Fan turns on and off Hi, I have a MacBook pro 15" A1286 2012 logicboard that doesn't display any picture but the fan it turns on and off repeatedly until I press the power button and shut off the computer. Do you have any idea on what...

Hi, I have a MacBook air 13" that does not chime does not display any picture but the fan runs 100% the firmware reset function works as well when I press cmd+option+p+r it resets but no chime, I bought a new efi chip on ebay and it displays the same symptom. Can anyone share any advice on what...