This report covers the motherboard, specifically the revision, commonly used in laptops like the Lenovo IdeaPad S145-15IKB Go to product viewer dialog for this item.
If you are looking at a board with a physical crack or a "cracked" (bypassed) firmware: gs44b gs54b nmc561 schematic cracked
Since this is a multi-layer board, a visible surface crack often means severed internal power planes. Bridge Repair: 0.02mm enameled jumper wire to reconnect broken traces found via the BoardView file 2. Identifying the NM-C561 Architecture is the specific motherboard model number for these series. Support for Intel Kaby Lake-U/R and DDR4. GS44B / GS54B This report covers the motherboard,