This app was mentioned in 2 comments, with an average of 1.50 upvotes
heres how i id it
I downloaded https://play.google.com/store/apps/details?id=tw.com.method.rfidtool onto my phone
turn nfc on my samsunge note 2
in RFID NFC Tool picked Mifare Ultrlight/ Ntag
hold the card up to the phone it will beep
press read
you will get Action failed ntag213 page: data and a bunch of data take a screen shot and sent it to greatone76 (http://www.ebay.com/itm/XYZ-Da-Vinci-Junior-jr-NFC-Tag-Key-for-Filament-Reset-/131740114531?hash=item1eac529e63:g:1XkAAOSwll1W1PAc) $10 to do it
he sent me my password
restart RFID NFC Tool and select the little key in the upper right corner
click the key with a +
pick NTAG 21X Series
name it any thing and enter the key he gave you hit ok make sure its active
go back to Mifare Ultrlight/ Ntag
make sure autenicat with (key name) is checked
hold up chip and hit read
write E0930400 to page 0A , then write E0930400 to 0B, then write E0930400 to page 14
done you now have 300M
seems like a lot of steps but it takes less the 10 min
not any more
heres what i did
downloaded https://play.google.com/store/apps/details?id=tw.com.method.rfidtool onto my phone
turn nfc on my samsunge note 2
in RFID NFC Tool picked Mifare Ultrlight/ Ntag
help the card up to the phone it beeped
pressed read
you will get Action failed ntag213 page: data and a bunch of data
take a screen shot and sent it to greatone76 (http://www.soliforum.com/user/13260/) he might wants like $10 to do it
he sent me my password
restart RFID NFC Tool and slect the little key in the upper right corner
click the key with a +
pick NTAG 21X Series
name it any thing and enter the key he gave you hit ok make sure its active
go back to Mifare Ultrlight/ Ntag
make sure autenicat with (key name) is checked
hold up chip and hit read
write E0930400 to page 0A , then write E0930400 to 0B, then write E0930400 to page 14
done you now have 300M
seems like a lot of steps but it takes less the 10 min