matthewgreene
New member
Okay... sorry that you have to walk me through this, but BIOS is flashed.
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Bizarre Repair 2020: 13" Macbook Pro (A1502, 2015) Filled with Lotion
- Thread starter matthewgreene
- Start date
What BIOS file did you use?
matthewgreene
New member
MBP112.0138.B16
I mean where did you get it?
matthewgreene
New member
Dr. BIOS
Didn't find any clean BIOS on our forum???
matthewgreene
New member
I didn't look. As I mentioned, I'm totally new on this forum; I came because the forum is advertised as, more-or-less, providing a resource that can walk you through logic board repair. This is most difficult logic board repair I've encountered, hence, here I am. I am unaware of the breadth of resources that may or may not be available on this forum, being a new member.
With that said, if there is an expectation or preference that I acquire certain resources such as a BIOS from this forum, then perhaps you could provide a link, or even mention that such a resource is available here, when you state that I should 'flash the BIOS' of the board on which I'm working.
Can we assume, for the time being, that I did manage to complete this step properly and move on to the next step?
With that said, if there is an expectation or preference that I acquire certain resources such as a BIOS from this forum, then perhaps you could provide a link, or even mention that such a resource is available here, when you state that I should 'flash the BIOS' of the board on which I'm working.
Can we assume, for the time being, that I did manage to complete this step properly and move on to the next step?
Try this BIOS first...
drive.google.com
820-4924 clean ME.rar
drive.google.com
matthewgreene
New member
Thank you. BIOS installed.
Any change?
matthewgreene
New member
Sorry, am I just looking for USB activity at this point? The major thing that happened was power restored to all major lines on the board, 5.25 V @ USB, and me asking if I should try to boot this board. You wrote that I should try a known good BIOS. I reflashed the BIOS with the file you linked me to. Now, I was waiting for you again, for more or less a next step.
Thanks.
Thanks.
You said BIOS done, but didn't specify the actual state of the board.
No idea if new BIOS helped...
No idea if new BIOS helped...
matthewgreene
New member
I guess I’m going to have to ask for clarification again; I’m not sure what you’re asking when you say the “state of the board.” From my perspective the board, seems to have expected power in the expected locations.
Previously, I asked if I should try to boot the board, to which you replied I needed to try a known good BIOS first. This is where I’m at: seemingly functional board, new BIOS installed.
Can you please clarify what I’m looking for regarding ‘board state?’
Thanks.
Previously, I asked if I should try to boot the board, to which you replied I needed to try a known good BIOS first. This is where I’m at: seemingly functional board, new BIOS installed.
Can you please clarify what I’m looking for regarding ‘board state?’
Thanks.
Power up the board and tell us what happens...
matthewgreene
New member
Okay... just to clarify: by power up, you mean put the board back in the case and try to boot it?
Do I need the battery hooked up to do this?
Do I need the battery hooked up to do this?
iCore boards usually turn on automatically, when charger is connected.
But recent thread for the same board, mentioned didn't start without battery; so test both cases.
Try the board out of case, with only USB mouseto check for activity.
Check first if you get voltage on all coils and CPU heats...
But recent thread for the same board, mentioned didn't start without battery; so test both cases.
Try the board out of case, with only USB mouseto check for activity.
Check first if you get voltage on all coils and CPU heats...
matthewgreene
New member
Voltage on all coils, and the CPU is heating. I can't swear to USB activity, but my USB mouse seems to be responding.
Next Step?
Next Step?
Disconnect/reconnect USB mouse when board is turned on; mouse gets steady light again?