In those cases, no software—free or paid—will help. The only solution is hardware repair (reballing the controller) or data recovery by swapping NAND chips, which costs hundreds of dollars.
Flashing the wrong firmware version can "brick" the device permanently or lead to reduced capacity. sm3265ac free
: Compatible with a wide range of NAND types, including 2D/3D TLC and QLC from major suppliers. In those cases, no software—free or paid—will help