How to restore the initial password of the M1 card?
2023-11-29 16:03:32
When you get a new M1 card, its sector passwords are initially FFFFFFFFFFFF. If you rewrite any of these passwords, you must remember them. If you forget a changed password, you won't be able to recover the original default M1 card password.
To try and recover a changed password:
- Download the SDK development document for your reader/writer model.
- Open the DEMO testing software and connect it to your reader/writer.
- In the software, load a password and attempt to read all M1 card sectors (0 to 15).
- If the software can read all sectors, the card's passwords are still the default FFFFFFFFFFFF.
- If it shows that a sector cannot be read, that sector's password has been changed. You'll need to enter the correct changed password for that sector to get into read mode.
After successfully entering read mode, you can then rewrite the password for that sector back to FFFFFFFFFFFF, restoring its default setting.
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FONGWAH Technology is a high-tech enterprise that specializes in research, development, production, and operation of intelligent IC cards, embedded IC card modules, desktop IC card readers, and related IC card reading and writing devices
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