notebook came with efi lock so i download a file from internet and tried ....so it turns on but now working very slow and it takes so long to load osx....i am attaching orignal file if some body can modify and can remove password .......emc is 2678 and mobo num is 820-3467-A
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Re: macbook 13inch retina a1502
any body can help -
Re: macbook 13inch retina a1502
Try this one
https://ghostlyhaks.com/forum/efi-fi...014-820-3467-a
Did you run asd ?Comment
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Re: macbook 13inch retina a1502
what i've got from your bios file,
MBP111.88Z.B03.1310291227
SSN : C02M9B4GFH00
USERNAME NORFAUZI JALALUDIN
MacBook Pro "Core i5" 2.4 13" Late 2013 2.4 GHz Core i5 (I5-4258U)
This is what i was doing with your locked files:
- Clear Password is by removed bunch after $SVS......
you can google for this treat.
But NVram must be clear too,
so how??
1. Get file : MBP111_0138_B03_LOCKED.SCAP (bios packaged update from apple)
2. Open MBP111_0138_B03_LOCKED.SCAP with UEFIToo.exe
3. Extract Body so you get UEFI_CAPSULE_BODY.ROM
4. Still on UEFITool closed SCAP file, now open 1502_ori.rom
5. Still on UEFITool open image in new window, choose UEFI_CAPSULE_BODY.ROM
6. See on 1502_ori.rom window,there is 10 file modules BIOS REGION, that module files should be replace from original SCAP
7. select on NVRAM module,
FileSystem GUID: FFF12B8D-7696-4C8B-A985-2747075B4F50
Full size: 30000h (196608)
this NVRAM module should be replace from UEFI_CAPSULE_BODY.ROM
8. now see on UEFI_CAPSULE_BODY.ROM window, click search choose GUID ,input FFF12B8D-7696-4C8B-A985-2747075B4F50,
GUID pattern "FFF12B8D-7696-4C8B-A985-2747075B4F50" found as "8D2BF1FF96768B4CA9852747075B4F50" in PE32 image section at header-offset 2914h
GUID pattern "FFF12B8D-7696-4C8B-A985-2747075B4F50" found as "8D2BF1FF96768B4CA9852747075B4F50" in TE image section at header-offset FC8h
GUID pattern "FFF12B8D-7696-4C8B-A985-2747075B4F50" found as "8D2BF1FF96768B4CA9852747075B4F50" in TE image section at header-offset FC8h
GUID pattern "FFF12B8D-7696-4C8B-A985-2747075B4F50" found as "8D2BF1FF96768B4CA9852747075B4F50" in FFF12B8D-7696-4C8B-A985-2747075B4F50 at header-offset 10h
S
elect the last,see that module for NVRAM with same size "Full size: 30000h (196608)", that module should be extract as is,
now you get CLEAR NVRAM module file "FFF12B8D_7696_4C8B_A985_2747075B4F50.rom"
9. now replace this module to 1502_old.rom.
here is the result, try this;Comment
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Re: macbook 13inch retina a1502
i will try and will post results hereComment
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Re: macbook 13inch retina a1502
hi i have macbook pro a1502 main board is 820-4924-A but locked any body help thanks in advanceComment
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Re: macbook 13inch retina a1502
hello i have same macbook pro a1502 ratina main board is 820-4924-A but password any body help thanks in advanceLast edited by tanveer920; 01-14-2017, 07:20 PM.Comment
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Re: macbook 13inch retina a1502
try this..
1. Dont forget to reset nvram by holding Command+Option+P+R keys...
for detail reset nvram : http://osxdaily.com/2010/11/15/reset-pram-mac/
2. If you use old hdd, never using internet restore OS.. use usb or dvd for install OS
goodluckComment
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Re: macbook 13inch retina a1502
hello i have same issue .. if i get CMD - R trying to format .it comes PADLOCK
and if i turn it ON its coming DISABLE wait 60sec. i cannot try again any code
iwant to format but its comes LOCk ..EFI LOCk
i dont know how to get the MOBO number can anybody help me.. please
MacBook Pro 13.3" - Mid 2014
Serial: C02P17R8G3QH
Model #: A1502 EMC 2875
Sales Number: MGX72LL/AComment
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Hello everyone,
I’m currently working on a dead MSI GP75 Leopard (MS-17E71) motherboard (i7 CPU, NVIDIA GPU) with a no display/no backlight issue initially. After extensive investigation, I’m at a critical stage involving EC firmware, BIOS/ME region interaction, and possible deep corruption. I'm seeking advanced insight from anyone with experience in EC/BIOS sync issues or PCH-level behavior. Here’s a full breakdown:
🧩 Initial Issue- Board powers on (fans spin, keyboard lights up and can be adjusted, caps lock led lights), but no display or backlight
- External display (HDMI) shows
07-24-2025, 02:17 PM -
Hello everyone,
I am requesting urgent assistance to unbrick my laptop, a rebranded TongFang GK7MRFR chassis. The laptop is completely dead following a faulty in-OS EC flash attempt.
I have successfully used a CH341A programmer and can read/write/verify both flash chips, but using my backups/extractions has failed to restore power. The root cause is likely a corrupted Intel Management Engine (ME) region or an incompatible EC/BIOS pairing. System & Hardware Details- Barebone / Chassis: TongFang GK7MRFR
- MB: MB: GK5MP5X V1.0 Prod :GK5MRFV10T04201310281
- Rebrand: PC Specialist
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Apple MacBook Pro Retina 13' A1502 820-3536-A Schematic...10-12-2024, 11:43 AM
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Hello everyone,
I recently bought a non-working Asus Zenbook Pro Duo OLED UX8402ZA that was listed for parts only. The seller mentioned that it had no display output but that the charging lights worked.
When the laptop arrived (without a charger and SSD), I connected a charger and confirmed with a multimeter that it was charging the battery. However, when I tried to power it on, only the backlight of the secondary display came on. There was no image, and it didn’t boot into the BIOS.
I decided to try flashing a new BIOS, but since I didn’t want to desolder... -
First of all thanks to all of our members who have posted previously all methods posted here.
Please leave a comment if you find something new,or have anything else to add.
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