Trekstor SurfTab Twin 11.6 (iwork1x) BIOS needed

[Grady1952]

Hello. I have a SurfTab Twin 11.6 and accidentally flashed the wrong BIOS. I have tried a BIOS that I found on this site but it only shows 2GB of RAM.
The original BIOS showed the full 4GB. Please post any BIOS that you think may work for me. Thank You!
Tablet info: i30L64GB16477420283 (purchased as an "iwork1x").
Some sites have a BIOS "st11432-2b," "N1W6" or similar names but I have not been able to download them.
BIOS that is installed now is TP15-VT5.3.3.2 (showing 2GB RAM).
Thanks in advance for any help!

[Grady1952]

TrekStor SurfTab Twin 11.6 UPDATE - BIOS FOUND!
Sorry for the long post. I hope this helps someone.

I have the 4/64 version (4GB RAM / 64GB eMMC drive).
The correct BIOS files for this model are found here (with the two direct links just below):
https://4pda.to/forum/index.php?show...822102&st=1140

SINGLE BOOT (N1W6_i30_201610270309.234_SingleBios.zip) 5.6MB:
https://4pda.to/stat/go?u=https%3A%2...8I&e=112595937

DUAL BOOT (BIOS_N1D6_i30_20161111181405.234_DualBios.zip) 5.6MB:
https://4pda.to/stat/go?u=https%3A%2...oI&e=112595937

Links to other BIOS VERSIONS:
https://www.hovatek.com/forum/thread-20937.html
https://4pda.to/forum/index.php?show...#entry93330377

Also, another problem has been solved. I initially thought it was a BIOS ISSUE but was mistaken:
Inaccessible_Boot_Device. Windows 11 and some later versions of Windows 10 can't "see" the eMMC drive (such as the SanDisk DF4064).
The MMC drive does not appear in Device Manager but there may be a "SD Storage Class Controller" (may have to Show Hidden Devices).
Device Properties may say "This device cannot start (Code 10)," "Fatal Device Hardware Error," CRC error or something similar.
Device Manager may show "SD\VID_45&OID_0000&PID_DF4064 SD\CLASS_MMC" or similar, which is the SanDisk eMMC aka iNAND 7232 family.

Replace the following files in the installation (WIM) and boot images with the ones from Windows 10 build 19042:
disk.sys, dumpsd.sys, ehstorclass.sys, partmgr.sys, sdbus.sys, sdstor.sys
These are in the C:\Windows\System32\drivers folder. Many thanks to the original poster:
https://www.windowsphoneinfo.com/thr...lution.410883/

Model: TrekStor SurfTab Twin 11.6 aka Cube iwork1x, Alldocube, i30L, i30-L, i30L64, N1W6_i30

[Grady1952]

More info: This appears to be the "SurfTab twin 11.6 4/64" the only version with 4GB RAM and a 64GB eMMC.
Here is a link to the archived webpage: https://web.archive.org/web/20170514...n-116-464.html
I replied to my own post because "edit" is no longer showing. Please let me know if I am doing this wrong.
Thanks again!

[Grady1952]

TrekStor SurfTab Twin 11.6 UPDATE - BIOS FOUND!
Sorry for the long post. I hope this helps someone.

I have the 4/64 version (4GB RAM / 64GB eMMC drive).
The correct BIOS files for this model are found here (with the two direct links just below):
https://4pda.to/forum/index.php?show...822102&st=1140

SINGLE BOOT (N1W6_i30_201610270309.234_SingleBios.zip) 5.6MB:
https://4pda.to/stat/go?u=https%3A%2...8I&e=112595937

DUAL BOOT (BIOS_N1D6_i30_20161111181405.234_DualBios.zip) 5.6MB:
https://4pda.to/stat/go?u=https%3A%2...oI&e=112595937

Links to other BIOS VERSIONS:
https://www.hovatek.com/forum/thread-20937.html
https://4pda.to/forum/index.php?show...#entry93330377

Also, another problem has been solved. I initially thought it was a BIOS ISSUE but was mistaken:
Inaccessible_Boot_Device. Windows 11 and some later versions of Windows 10 can't "see" the eMMC drive (such as the SanDisk DF4064).
The MMC drive does not appear in Device Manager but there may be a "SD Storage Class Controller" (may have to Show Hidden Devices).
Device Properties may say "This device cannot start (Code 10)," "Fatal Device Hardware Error," CRC error or something similar.
Device Manager may show "SD\VID_45&OID_0000&PID_DF4064 SD\CLASS_MMC" or similar, which is the SanDisk eMMC aka iNAND 7232 family.

Replace the following files in the installation (WIM) and boot images with the ones from Windows 10 build 19042:
disk.sys, dumpsd.sys, ehstorclass.sys, partmgr.sys, sdbus.sys, sdstor.sys
These are in the C:\Windows\System32\drivers folder. Many thanks to the original poster:
https://www.windowsphoneinfo.com/thr...lution.410883/

Model: TrekStor SurfTab Twin 11.6 aka Cube iwork1x, Alldocube, i30L, i30-L, i30L64, N1W6_i30