Mac wont Boot after Flash


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8 years 9 months ago - 8 years 9 months ago #581 by Edge
Hi Ghost
Once again thanks for your help on this one as suggested i have opened a new topic in the forum
I am really keen to understand where i went wrong as i followed your tutorial which i must say is one of the best i have seen to the letter.
I took 5 reads of the original just to be extra safe and check the hash and they all match.
I used one of the online firmware dumps and just changed the serial number to mine as suggested and wrote back successfully.
When i try to boot the fan attempts to spin but nothing more i assum the term Bricked would apply.
I also wrote the old dumps dumps back but still just the fan attempts to spin nothing more.

Any advice would be appreciated and i have attached the 3 of the dumps as suggested.

Thanks in advance

R
Attachments:
Last edit: 8 years 9 months ago by Edge. Reason: Attach Dump

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8 years 9 months ago #583 by Kiiinglouie
did you modify the dump correctly? some more info is needed to help you
what machine do you have? specific info is needed not just oh a 2013 macbook pro
what firmware did you write to the machine? link to what you flashed
and yes its bricked for the most part

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8 years 9 months ago - 8 years 9 months ago #586 by thaGH05T
Replied by thaGH05T on topic Mac wont Boot after Flash
Please find the modified original dump and flash it back. Also what dump did you download from my site that didnt work?

File Attachment:

File Name: CPWKQAVTDTY3.zip
File Size:4,274 KB
Attachments:
Last edit: 8 years 9 months ago by thaGH05T.
The following user(s) said Thank You: Edge

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8 years 9 months ago #587 by thaGH05T
Replied by thaGH05T on topic Mac wont Boot after Flash

Kiiinglouie wrote: did you modify the dump correctly? some more info is needed to help you
what machine do you have? specific info is needed not just oh a 2013 macbook pro
what firmware did you write to the machine? link to what you flashed
and yes its bricked for the most part


He has a A1278 (EMC 2554*)
The following user(s) said Thank You: Edge

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8 years 9 months ago #590 by token.paul
Your attached dump seem correct but with password.

I suggest to make the following:
1. Erase the flash chip with flashrom, anyways you have a corrupted firmware on chip, make sure that chip is empty it should be FF-filled.
2. Write back your backup firmware and if machine will boot keep this file as rescue image.
3. Post here your working image and we'll make a clean one for you. I'll write how to flash password area only.

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8 years 9 months ago #602 by Edge
Replied by Edge on topic Mac wont Boot after Flash
Hi all

Thanks for all your help and advice so far. apologies i have only just responded i was expecting an email when a reply happend but i didnt check my junk.
School boy error!
I have ordered another Panoma clip as the one i have is a bit temperamental so will erase and write back ghosts one as soon as it arrive and let you all know the outcome.

The dump i used to flash was (2554 - 13 MBP 2012 i5 2.5) in the database and i just replaced the Model Number with my serial it flash successfully but bricked my machine.
I obviously did something wrong but cannot work out what i did wrong.

Let me know if you need any further information on which dump it was etc.

I will hopefully be able to test in the next couple of days.

Thanks again

r

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8 years 9 months ago #628 by Edge
Replied by Edge on topic Mac wont Boot after Flash
Hi All

I just go my new soca clip today and put it to the test.

I erased the current flash and the flashed back the one ghost sent over with success. however I still have a bricked mac fan attempts to spin and then nothing.

Any other ideas or shall i start getting it ready for the skip

Thanks for any advice

R

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8 years 9 months ago #631 by thaGH05T
Replied by thaGH05T on topic Mac wont Boot after Flash
Do you ever hear the chime?

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8 years 9 months ago #637 by Edge
Replied by Edge on topic Mac wont Boot after Flash
no chime since i flashed it :-(

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8 years 9 months ago #640 by thaGH05T
Replied by thaGH05T on topic Mac wont Boot after Flash
I have never seen one of these fail, especially after writing back the original. Token.paul, anything you can think of?

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8 years 9 months ago #643 by token.paul
I talked with him in chat. He said that he can't read a chip... Perhaps his chip was harmed.
Another thing, I did file checking... Seem that CPWKQAVTDTY3.bin in the repository corrupted... SVS Area not detected.
I think if this file will be written into the flash, then machine will fail to boot. And as we know Intel ME co-processor powered even then MacBook will be turned off, so if a broken code will be loaded into it, then it may hangs and battery disconnection will be necessary to reset it... This is just my guessing, I don't know what happened in reality...

scanner log:
---
System byteorder: Little Endian
Mode: Only scanning = 0, Silent = 0
ROM: ./CPWKQAVTDTY3.bin
Intel BIOS signature found
Apple Specific Data block start found at: 0x00670000
Scanner should find first var within 512 bytes of data...
'PchInit' usually... or 'Setup'
Variable at: 0x00670060 RFT: 2, Sizes (Key: 16 Value: 4)
GUID: 0af7c2e604b6774885badeec89e117eb at: 0x00670070 (6750320)
Key: PchInit Value: 00e0fe8a
====
File size: 0x007fffff (8388608) bytes. Record format type 2 detected
Image for 8 Mbytes flash chip
SVS Area not detected.

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8 years 9 months ago #645 by Edge
Replied by Edge on topic Mac wont Boot after Flash
Hi Guys

Thanks for the input.

I have purchase a new Soca clip and can now read the chip.

Are you advising i removed the battery and the wipe the chip and reflash ?

As i say the CPWKQAVTDTY3.bin wrote and verified ok

Thanks

R

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8 years 9 months ago #646 by thaGH05T
Replied by thaGH05T on topic Mac wont Boot after Flash
Try to pull the battery and dissipate any electricity by holding the power button as you turn it on. I have had this happen to me, I lied. It has been a long time and usually with MBA's. after that, connect the battery and hold the power button until the fans start then stop. Then let go and press it again until you here a chime. I feel confident if the flash verified the chip is fine. Give this a shot and chat me if you need help.

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8 years 8 months ago #822 by Edge
Replied by Edge on topic Mac wont Boot after Flash
Hi Ghost

Sorry its been a while but i wanted to try everything cleanly again to ensure everything was correct and have been manic recently.

I did as you said as with holding the power button and it does make a sort of whizz sound but then stops as it did before doesnt make any chime noise.

I have also removed the battery completely and erased and reflashed the dump you sent but still no boot just a attempt at the fan to spin

Any other ideas your advice is appreciated as always.

R

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8 years 8 months ago #823 by thaGH05T
Replied by thaGH05T on topic Mac wont Boot after Flash
Did you pull the battery and THEN hold the power button? And then plug it back up and hold it again. Multiple times of this should allow it to boot. If not then maybe me or token.paul can remote in to support you. Send us a dump that you have so we can analyze it for integrity.

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8 years 8 months ago #837 by Edge
Replied by Edge on topic Mac wont Boot after Flash
HI Ghost

Tried as you suggested several times but still just the attempt for the fan to spin although I do see a light on the hard drive it still doesn't boot.

Attached is the latest Firmware flash.

Happy to do a remote session at this stage I will try anything.

Thanks again for you help with this one.
Attachments:

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8 years 7 months ago #841 by thaGH05T
Replied by thaGH05T on topic Mac wont Boot after Flash
The provided file does not appear to have ever been locked. Can you provide the original dump from this mac?

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8 years 7 months ago #844 by token.paul
This dump does not content SVS area at all. Edge, we are need to see exactly original dump, which was taken from your MBA BEFORE you made any changes.

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8 years 7 months ago #846 by Edge
Replied by Edge on topic Mac wont Boot after Flash
Hi Guys
I have attached two dumps hopefully this will shed some light
thanks for your support on this one
edge
Attachments:

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8 years 7 months ago #847 by Edge
Replied by Edge on topic Mac wont Boot after Flash
other dump
Attachments:

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