Lenovo utilizes various methods for packaging firmware and these are:
- Self-Extracting File
BiosExtract supports 2 and 3 but partially support 1 because of the numerous formatting and different version of capsule file,here is a flowchart for extracting Lenovo firmwares.
BiosCreator automatically handles InsydeFlash packaged Bios update. This function is built-in to Lenovo extraction method and there is no need for you to do additional tasks:
SYSTEM BIOS & EC FIRMWARE
Bios update file that were packaged using InnoSetup can not be decompressed by standard decompression utilities. Here procedure for extracting a Lenovo Bios Update that is package using InnoSetup. The extracted file is a Capsule file (CAP file). Judging from the size of the file, it requires further processing because the size is not in this list.