Instruction authentication failed after writing to another block inside my MIFARE CLASSIC 1K

[caf-3]

I'm facing a problem after writing to another block different than 0x01.
After writing to another block, i can't authenticate to previous the blocks that i have wrote data.
My code

from nfc import nfc as nfcReader

reader = nfcReader.Reader()
block_number = 0x01
custom_number = 0x20
key_location = 0x01
reader.load_authentication_data(key_location, [0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF])
reader.authentication(block_number, 0x61, key_location)

def write(position=block_number, number=custom_number, data=[0x00 for i in range(16)]):
    """ Write data to mifare tag
    Example:
        write(reader, 0x01, 0x20, [0x00 for i in range(16)])
    """

    while number >= 16:
        write_16(reader, position, 16, data)
        number -= 16
        position += 1


def write_16(r, position, number, data):
    
    r.update_binary_blocks(position, number, data)


def read(position=block_number, number=custom_number):
    """ Read data from mifare tag
    >>> read(reader, 0x01, 0x20)
    """
    print(f'block {block_number}')
    result = []
    while number >= 16:
        result.append(read_16(position, 16, reader))
        number -= 16
        position += 1
    return result


def read_16(position, number, r):
    return r.read_binary_blocks(position, number)

[Flowtter]

Unfortunately I don't have the NFC reader anymore so I won't be able to provide much help.

I used the acs' API to write it.

There might be a bug, if you find it you're welcome to do a pull request.

If I recall correctly, you can't access every blocks as well. Everything is in the API's documentation.

Sorry I can't help more unfortunately.