[EFI Loader] Error 12 Fix in Boot Camp for Apple T2 Security Chip Macs (apple_se...
 
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[EFI Loader] Error 12 Fix in Boot Camp for Apple T2 Security Chip Macs (apple_set_os loader v0.5)  

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Де Сик Мин
(@e-v-min)
Active Member
Joined: 10 months ago
 

Hi, thanks for software, this is only thing that made my 5700 XT working!

Is updating Windows 10 to latest build is safe?

2019 MacBook Pro 16-inch, 5300M 4GB
Sonnet eGFX Breakaway Box 550
Sapphire Radeon RX 5700 XT Nitro+


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itsage
(@itsage)
Illustrious Member Admin
Joined: 4 years ago
 

@laurence_vines Remove the Samsung T5 USB-C external drive from the equation until you can get the eGPU going in Boot Camp. You can partition the internal drive with 50GB to test Windows 10 1903 V1 ISO on it. Use the boot loader in OP if you encounter error 12.

@e-v-min Stay on Win10 1903 .30 to .295.

external graphics card builds
best laptops for external GPU
eGPU enclosure buyer's guide

 
2020 15" HP Spectre X360 [11th,4C,G] + RTX 2080 Ti @ 32Gbps-TB4 (AORUS Gaming Box) + Win10 2004 [build link]  


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bluexyzz
(@bluexyzz)
New Member
Joined: 10 months ago
 

Just wanted to chime in real quick and say that I just purchased the Razer Core X Chroma and it works for me without the port swap dance and without modified EFI. Just have to hot plug and it works.

Previously I had the Sonnet eGFX Breakaway Box which required port swapping, apple_set_os loader, and some sacrificial blood. YMMV

Macbook Pro 2019 16" 64GB/5500M 8GB
PowerColor RX 5700 XT + Razer Core X Chroma


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Mini i5
(@mini-i5)
Honorable Member
Joined: 1 year ago
 

@bluexyzz

Which Windows build are you running? (Asks the multitudes) 😅

2018 Mac Mini i5 / 6-core 3.0-4.1 Ghz / 32GB / 256GB / Intel UHD 630 / PowerColor Gaming Station / PowerColor dual-fan RX 5700 XT / Mac OS 10.15.6 Catalina / Windows 2004 😏 / Dual LG 27" 4K displays


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acantril
(@acantril)
Eminent Member
Joined: 3 years ago
 

@bluexyzz

Interesting, thanks for that. I've also ordered one (was almost going to anyway because of the extra USB ports). I'll test and report back.

2019 MacBook Pro 16" / i9-9880HK / 32GB / 5500M 8GB
Razer Core X Chroma / AMD Radeon RX 5700 XT


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Wildgoose
(@wildgoose)
New Member
Joined: 10 months ago
 

@bluexyzz

Which Windows 10 build are you on?

Mine was working fine hot plugging on Win 10 1903 v1, but as soon as Windows did the security updates today, I couldn’t hot plug it again until I reverted back to a restore point that preceded the updates. Based on itsage’s comment, the updates must have taken me out of the Win 10 1903 v1 .30-.295 range.

2019 MacBook Pro 16" / i9-9880H / 16GB / 5500M 4GB
Razer Core X Chroma / AMD Radeon RX 5700 XT


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bluexyzz
(@bluexyzz)
New Member
Joined: 10 months ago
 

Probably should have mentioned that.

Win 10 1903 build 18362.30.

Macbook Pro 2019 16" 64GB/5500M 8GB
PowerColor RX 5700 XT + Razer Core X Chroma


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Alec
 Alec
(@alec)
Trusted Member
Joined: 4 years ago
 

What's the way to fix this error? I've downgraded my version of Windows with zero luck.

2016 15" MacBook Pro (RP450) [6th,4C,H] + GTX 1080 @ 32Gbps-TB3 (Razer Core) + Win10 [build link]  

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itsage
(@itsage)
Illustrious Member Admin
Joined: 4 years ago
 

@alec Try the modified apple_set_os.efi boot loader and tutorial in the OP. 

 

external graphics card builds
best laptops for external GPU
eGPU enclosure buyer's guide

 
2020 15" HP Spectre X360 [11th,4C,G] + RTX 2080 Ti @ 32Gbps-TB4 (AORUS Gaming Box) + Win10 2004 [build link]  


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Wildgoose
(@wildgoose)
New Member
Joined: 10 months ago
 

@bluexyzz

Confirmed for my system, reverting back to Win10 1903 .30, worked fine for my system.  I returned the Razer Core X and switched to the  Razer Core X Chroma and it now it also works for me without the port swap.  I also deleted the modified EFI with no issues. Just boot into windows, plug the Chroma in, and it works great.  

2019 MacBook Pro 16" / i9-9880H / 16GB / 5500M 4GB
Razer Core X Chroma / AMD Radeon RX 5700 XT


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