NTAG215 AUTHLIM BRUTE FORCE LIMIT

I need to protect my NTAG215 from bad password after ten incorrect attempts.

First protected page 04 to 81:

RAW COMMAND: A2 83 04 00 00 04

After to enable brute force protection:

RAW COMMAND: A2 84 82 00 00 00

HEX 82 = BIN 10000010

• PROT = 1
• CFGLCK = 0
• RFUI = 0
• NFC_CNT_EN = 0
• NFC_CNT_PWD_PROT = 0
• AUTHLIM = 010 ( 10 attempts )

But after 3 incorrect attempts my NTAG215 seems dead.

NTAG213-216 data sheet:
https://www.nxp.com/docs/en/data-sheet/NTAG213_215_216.pdf

I'm doing something incorrectly?

Thanks for help.

#SOLVED ( Thanks to @nanofarad )

authlim is a three-bit number - 010 is not ten attempts, it's binary 10 attempts (meaning 2 attempts), so presumably on the third it locks itself.

You cannot set 10 attempts using AUTHLIM if AUTHLIM can only represent numbers from zero (binary 000) to seven (binary 111).