Freeze remove frp SM-A510M
 

Using Version...1.0.0.0026
Selected Port ssudmdm0000 = COM3
Selected Model SM-A510F
Selected Task SAMSUNG FRP Remove

Searching phone...
Device Found..
MODEL=SM-A510M;UN=C00009A8596D1A2;CAPA=16;VENDOR=TOSHIBA;FW VER=4;PRODUCT=400073;
Init ok..

Hello
possoble new bootloader.
Did u try to check on other usb port ? make sure no usb hub used.