How to install Lexar DDR4-3200 SODIMM on to your laptop

The module is non-ECC and unbuffered, features a CAS latency of 19 and a power rating of , and works on systems with a DIMM slot and a DDR4-enabled chip

They feature 288 pins for desktop modules and 260 pins for SO-DIMM slots, with reduced voltage requirements around DDR4 also supports

ddr4 in ddr5 slot slot is working then my first suspect would be bent Pins in the LGA Socket as they are very easily bent as there tiny Soft gold pins so

ddr4 and ddr5 same slot DDR4 SODIMM, Samsung M471A1G44AB0-CTD ; Empty memory sockets: None; Total memory = 16384MB ; Memory Error Correction: None