Lenovo ThinkBook 13s-IML Stock at EB # LOG:Exitbs: Start

[pchitech]

Hi all,

I bought a new Lenovo ThinkBook 13s-IML laptop and these are the specs:

Cpu
Intel Core i5-10210U processor (1.60GHz 6MB)

Display
13.3 "FHD IPS AntiGlare WLED backlight 1,920 x 1,080

Ram
8.0 GB DDR4-2666 DDR4 SODIMM 2666 MHz

SSD
512 GB M.2 PCIe NVMe SSD

Graphics
Intel UHD

I've tried all the methods I know with both clover and opencore, but whatever I do I get Stock at

EB # LOG:Exitbs: Start

+++++++++++++++++++++++++++++++++++++++++++++++++

and I can't do the installation.

Please help me.

[MaLd0n]

https://www.olarila.com/topic/8918-opencore-vanilla-guide-step-by-step-full-dsdt-patched-or-ssdt/

[pchitech]

Hi all,

i followed the guide but rest stuck on exitbs

I Can't disable Cfg Lock in bios so i've enable AppleCpuPmCfgLock e AppleXcpmCfgLock

I've  try  SetupVirtualMap e RebuildAppleMemoryMap n/n n/y y/y e y/n nothing

Then i've try with DevirtualiseMmio and AppleXcpmExtraMsrs but rest Stuck at EB # LOG:Exitbs: Start

Please help me

 

 

[MaLd0n]

use a fakecpuid

 

[pchitech]

I've tried with this your efi that has the fakecpuid but rest Stuck at EB # LOG:Exitbs: Start

 

[MaLd0n]

check if this folder work

https://www.olarila.com/topic/8742-catalina-on-gigabyte-z490-ud-with-10th-intel-processors-full-dsdt-patches-with-opencore-bootloader-thunderbolt/

[pchitech]

19 hours ago, MaLd0n said:

check if this folder work

https://www.olarila.com/topic/8742-catalina-on-gigabyte-z490-ud-with-10th-intel-processors-full-dsdt-patches-with-opencore-bootloader-thunderbolt/

No Stuck at EB # LOG:Exitbs: Start

[pchitech]

These are the more technical specifications of my notebook :

 

Codename    Kaby Lake-U/Y

Specification    Intel(R) Core(TM) i5-10210U CPU @ 1.60GHz

 

Chipset     

Northbridge    Intel Comet Lake rev. 0C

Southbridge    Intel Comet Lake PCH rev. 00

 

Memory SPD     

Memory type    DDR4

Module format    SO-DIMM

Module Manufacturer(ID)    Samsung (CE00000000000000000000)

SDRAM Manufacturer (ID)    Samsung (CE00000000000000000000)

Size    8192 MBytes

Max bandwidth    DDR4-2666 (1333 MHz)

 

Mainboard Model    LNVNB161216 (0x000002B1 - 0x9FAA9BE0)

 

Display Adapters     

Name    Intel(R) UHD Graphics

Board Manufacturer    Lenovo

Codename    Comet Lake GT2

Technology    14 nm

PCI device    bus 0 (0x0), device 2 (0x2), function 0 (0x0)

Vendor ID    0x8086 (0x17AA)

Model ID    0x9B41 (0x3F15)

Revision ID    0x2

 

[MaLd0n]

check booter quirks

[pchitech]

On 6/30/2020 at 4:23 PM, MaLd0n said:

check booter quirks

I have tried many combinations of booter quirks but none make me bypass exitbs

[MaLd0n]

[pchitech]

It seems to be a fairly common problem on some Lenovo notebooks from the comet lake series. In particular it seems that nobody who has a lenovo from the thinkpad X1 or X2 series with the comet lake processor has managed to overcome this Exitbs, maybe my thinkbook 13s-IML is part of the same family boh?

 

Anyway I don't give up, but a hand is always welcome 😉

[pchitech]

Update ..... I tried to change RAM and use OpenCore 0.6.0, but the result doesn't change.

[MaLd0n]

u try change some booter quirks?

[pchitech]

23 hours ago, MaLd0n said:

u try change some booter quirks?

Obviously I tried but I don't know which combination to try anymore.

I came to a bitter conclusion no one was able to install catalina on a lenovo x1 carbon with comet lake the 20r1 series. My thinkbook derives from this notebook the project is identified as 20rr and we all have the same problem 😭😭😭😭EB # LOG: Exitbs: Start https://github.com/bomdurup/x1c7_2020_hacintosh

The bios, however, is locked for writing, therefore the various methods of modifying the cfg lock do not work.

At this point I believe that only opencore developers can do something.

Attached you will find the log of opencore if someone wants to help me thank you in advance.

opencore-2020-07-04-182439.7z

[pchitech]

Is there a guru who can help me? please. I don't know what else to try.