820-3787-a stuck on half installation

[djems3]

Hi.I'm attending to install OS on this mac ,which stuck on logo whit installation
bar.After 5-10 min. goes in sleep mode.Starting after any pressed button but
nothing on this screen.
I've written another bios which i clean via Apple EFI patcher.
I've tried from external hard and from internet both same.
SSD is working ,i install it on another MAC .Here is my original bin.
Can i have a help to solve the issue please.
Thank you.

[peste]

Re: 820-3787-a stuck on half installation

Hi.I'm attending to install OS on this mac ,which stuck on logo whit installation
bar.After 5-10 min. goes in sleep mode.Starting after any pressed button but
nothing on this screen.
I've written another bios which i clean via Apple EFI patcher.
I've tried from external hard and from internet both same.
SSD is working ,i install it on another MAC .Here is my original bin.
Can i have a help to solve the issue please.
Thank you.

try..

[djems3]

Re: 820-3787-a stuck on half installation

Thank you for your answer.With this file is same.Stuck at middle.In 10 min screen goes off ,fans still spinning ,usb drive led is ON and nothing on the screen.10 min more goes off complete.

[Ghamidi]

Re: 820-3787-a stuck on half installation

Thank you for your answer.With this file is same.Stuck at middle.In 10 min screen goes off ,fans still spinning ,usb drive led is ON and nothing on the screen.10 min more goes off complete.

try
https://www.badcaps.net/forum/showpo...79&postcount=8

[djems3]

Re: 820-3787-a stuck on half installation

Thank you for your answer.With this dump file getting slow cheam coming too late ,fans spins with max speed and nothing on the screen.Probably could be hardware issue but i don't have any clue what can be.

[5chematic]

Re: 820-3787-a stuck on half installation

Hi.I'm attending to install OS on this mac ,which stuck on logo whit installation
bar.After 5-10 min. goes in sleep mode.Starting after any pressed button but
nothing on this screen.
I've written another bios which i clean via Apple EFI patcher.
I've tried from external hard and from internet both same.
SSD is working ,i install it on another MAC .Here is my original bin.
Can i have a help to solve the issue please.
Thank you.

What was the main problem? ..what made you change the bios image?

Advice, do not not go around downloading any bios.bin image that you find on the internet. Every mac have a unique architecture image on every chip.

Some users unlock their mac's by using any image.bin they find on the internet. they unlock their mac's, but the results could end up in a overheating mac and many other problems. they won't be able to notice these problems, but in time they will regret it.

For example, the following info is from the image that you posted:

MacBook Pro (Retina, 15-inch, Mid 2014)
Model: A1398
EMC: 2881
S/N: C02N6B******* Ireland, UK.
Managment Engine: 9.0.5.1367

Now, there is a bit of a difference from the image that peste shared than from the one you posted. The Managment Engine: 9.0.31.1487. it is not the same. with this you will be doing great damage to your mac.

[piernov]

Re: 820-3787-a stuck on half installation

You can use an SPI ROM dump from another Mac of the same board model number if you're sure it's good, but of course you have to clean the ME region properly (with Intel FITC and the correct ME region), replace the serial number and fix the Fsys checksum.
And do 3x PRAM reset afterwards just for good measures.

But obviously it's not the correct way to unlock these if that was the original intent.

[djems3]

Re: 820-3787-a stuck on half installation

It came with this problem.It wasn't water damaged or any repairs on it.I did
ME region clean fallowing your instructions on the youtube video.
When i'm checking my original dump how as you mentioned on flashimage tool i have some error and yelow marked row "BOOT GUARD PROFILE CONFIGURATION " is unknown maybe this is not normal to be.I'm sending pictures of the errors.Thank you.

[peste]

Re: 820-3787-a stuck on half installation

It came with this problem.It wasn't water damaged or any repairs on it.I did
ME region clean fallowing your instructions on the youtube video.
When i'm checking my original dump how as you mentioned on flashimage tool i have some error and yelow marked row "BOOT GUARD PROFILE CONFIGURATION " is unknown maybe this is not normal to be.I'm sending pictures of the errors.Thank you.

post the full name and model of the laptop ..EMC and serial number on the case ...

[5chematic]

Re: 820-3787-a stuck on half installation

post the full name and model of the laptop ..EMC and serial number on the case ...

peste, all the info is on post #6
Unless the image he posted here is not from his actual mac but from another similar mac image he found on the internet.

Now, if I was djems3 I would follow piernov suggestion.

[5chematic]

Re: 820-3787-a stuck on half installation

It came with this problem.It wasn't water damaged or any repairs on it.I did
ME region clean fallowing your instructions on the youtube video.
When i'm checking my original dump how as you mentioned on flashimage tool i have some error and yelow marked row "BOOT GUARD PROFILE CONFIGURATION " is unknown maybe this is not normal to be.I'm sending pictures of the errors.Thank you.

Let me ask you.. what did you do with the image that you dumped from your mac? do you still have a backup of it?

[djems3]

Re: 820-3787-a stuck on half installation

Yes i have the original dump i kept it always on different place with the name from RT809
plus motherboard serial from label on motherboard.
Here is the model A1398 emc 2881 s/n C02N6BXXG3QD.
Thank you.

[peste]

Re: 820-3787-a stuck on half installation

yes i have the original dump i kept it always on different place with the name from rt809
plus motherboard serial from label on motherboard.
Here is the model a1398 emc 2881 s/n c02n6bxxg3qd.
Thank you.

try..

[djems3]

Re: 820-3787-a stuck on half installation

Same no any changes.Thank you.

[SMDFlea]

Re: 820-3787-a stuck on half installation

Same no any changes.Thank you.

Try this one .

[piernov]

Re: 820-3787-a stuck on half installation

It's not necessarily an EFI/ME region problem.

[djems3]

Re: 820-3787-a stuck on half installation

Same .Thank you .Applesupport.com/-5101f from internet
and half installation from external hard.

[Wachenaggo]

Re: 820-3787-a stuck on half installation

came across this one the problem is the SMC balls being detached on the ME bootstrap circuit. not enabling ME in the BIOS. check ME Bootstrap also.

[Rashid36]

Re: 820-3787-a stuck on half installation

Dear Need Bios For A1398 emc 2745 Late 2013, Some one our write Original bios,