Lenovo ideapad 520

[SleepInfinity]

~/VBiosFinder $ ./vbiosfinder extract /data/data/com.termux/files/home/VBiosFinder/bios.exe
/data/data/com.termux/files/home/VBiosFinder/src/cli.rb:3: warning: logger was loaded from the standard library, but will no longer be part of the default gems starting from Ruby 3.5.0.
You can add logger to your Gemfile or gemspec to silence this warning.
output will be stored in '/data/data/com.termux/files/home/VBiosFinder/tmp-vbiosfinder'
checking for ruby... yes

checking for innoextract... yes
checking for upx... yes
checking for 7z... yes
trying to extract ./bios.exe
found zlib archive
wrong guess :(                                                                       found innoextract archive
Extracting "Lenovo BIOS Update Utility" - setup data version 6.0.0 (unicode)
 - "app/4QCN51WW.exe"
Done.
trying to extract ./app/4QCN51WW.exe
found zlib archive
wrong guess :(
found 7z archive
trying to extract ./BiosImageProcx64.dll
trying to extract ./CIUSA215.ROM
found zlib archive
wrong guess :(
trying to extract ./Ding.wav
trying to extract ./FWUpdLcl.exe
trying to extract ./FlsHook.exe                                                      trying to extract ./H2OFFT-Wx64.exe
trying to extract ./H2OFFT.cat
trying to extract ./H2OFFT.inf
trying to extract ./H2OFFT64.sys
trying to extract ./Microsoft.VC90.CRT.manifest
trying to extract ./Microsoft.VC90.MFC.manifest
trying to extract ./mfc90u.dll
trying to extract ./msvcp90.dll
trying to extract ./msvcr90.dll
trying to extract ./platform.ini
extracting uefi data
trying to extract ./BiosImageProcx64.dll
trying to extract ./CIUSA215.ROM
trying to extract ./Ding.wav
trying to extract ./FWUpdLcl.exe                                                     trying to extract ./FlsHook.exe
trying to extract ./H2OFFT-Wx64.exe
trying to extract ./H2OFFT.cat
trying to extract ./H2OFFT.inf
trying to extract ./H2OFFT64.sys
trying to extract ./Microsoft.VC90.CRT.manifest
trying to extract ./Microsoft.VC90.MFC.manifest
trying to extract ./app/4QCN51WW.exe
trying to extract ./bios.exe
trying to extract ./mfc90u.dll
trying to extract ./mkmf.log                                                         trying to extract ./msvcp90.dll                                                      trying to extract ./msvcr90.dll
trying to extract ./platform.ini
filtering for modules...
got 0 modules
finding vbios                                                                        no candidates found :(
Cleaning up garbage                                                                  ~/VBiosFinder $

did it found anything ? and what is CIUSA215.ROM ?