Terence, did you get your issue resolved? I had a very similar issue with mine. Turned out the Magsafe2 DC-in board wasn’t fully seated in the logic board. Once I seated it fully, everything worked as it was supposed to. the new battery was charging and all other issues disappeared.

I solved the problem. I thought maybe the Magsafe2 DC-In board was bad and ordered a new one. when I disassembled the computer to install the new board, it appeared the original board wasn’t fully seated in the socket. I seated it fully and the LED lit up. I put everything back together and it all works as it should. Now to return the replacement DC-in board.

Hi all,

I replaced the battery in my Mid 2012 MB Pro retina (model A1398). The process was without incident.

I started the computer back up, plugged in the power cord and proceeded with the battery calibration. Once charged, I let it run until it shut down yesterday afternoon. I let it sit overnight and plugged it back in this morning.

When I pressed the Power button, I would get the battery image with the small red area and the lighting bolt indicating it was charging but it wouldn’t power on.

I tried the SMC reset and that did not work, actually have tried it now several times.

The way I got the machine to boot up was accidental. I was attempting the SMC reset and released the Shift, Control and Option buttons but held the power button. the fans kicked on and then I heard the boot tone. It will boot up and works fine, however, fans are running. Also the LED indicator on the magsafe adapter is not lit.

Any thoughts?

Roman, I was able to get my mine to boot. I pressed the left Shift-Control-Option and Power buttons for the 10+ seconds then released only the Shift-Control-Option buttons, continuing to hold the power button. Fans came on then the start-up tone. I can use it this way, but the mag-Safe does not show the LED and there is no battery monitor in the header.

I tried the SMC reset many times but it does nothing.

hopefully I’ll hear something back here or on Apple’s site.

I too am having the same problem.