REVELTRONICS

it detects it, but ... the checksum shows 0x0000 in its reading, bad reading or is it protected?

Reading will be fine. Please recalculate checksum or change to CRC32
From some reason in v1.8.5 sometimes it does not recalculate checksum automaticaly for large flash devices and it should be fixed in update. CRC32 is working fine. When you select all (CTRL + A) checksum also will be correct. When you click on checksum label it should recalculate too.

ocurrs the same.
But I confirm that the bin is correct, because I have copied it to another flash and it works.

Ha, so this is unique but checksum-16 is 0x0000 in this case You can change 1 byte, click CTRL + A and see if checksum changes too