BIOS CHIP LENOVO THINKPAD E14 GEN 2 (TYPE 20TA,20TB) E15 GEN 2 (TYPE 20TD, 20TE)
The BIOS chip needs to be soldered onto the board. The new bios chip will. As a backup chip in case the current BIOS Chip is corrupt. You will need a new bios chip for the following purposes NOT unlock/remove the bios password.