Rewriteable Hitag (2) tags?

[amal]

Hmm.. try recovery;

Reviving a bricked T5577

The T5577 chip is a great wonder of the world. [The T5577 chip is awesome!] That said, it is sensitive. The chip’s memory is arranged in blocks, and block 0 is a critical block that holds configuration data for how the chip should behave, if a password is set or not, and other critical settings. It is vulnerable to tearing - the act of leaving writable memory corrupted if the write operation is interrupted or suffers from insufficient power available to complete properly. If you h…