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I recently cloned a sample card onto a blank Mifare 1k card and began to play around with changing the default keys to something different.
I ran the following commange:
hf mf wrbl 3 A FFFFFFFFFFFF AAAAAAAAAAAA7f078800BBBBBBBBBBBBThis successfully wrote the block but after writing this I can no longer write to the block again. Attempting a restore writes to all block except sector 0, all block in sector 0 report `Cmd Error: 04`. After reading some other posts in the forum I tried running the remagic.lua and formatMifare.lua. The scripts worked on resetting the card but now attempting to run a restore reports the `Cmd Error: 04` error on all blocks in every sector. I can still alter the card using the c* commands. Is this behavior expected or am I missing something in order to reset the card to allow a restore to apply correctly?
The card currently reports as such:
UID : 01 02 03 04
ATQA : 00 04
SAK : 08 [2]
TYPE : NXP MIFARE CLASSIC 1k | Plus 2k SL1
proprietary non iso14443-4 card found, RATS not supported
Chinese magic backdoor commands (GEN 1a) detected
Prng detection: WEAKOffline
I figured it out I believe! I took a 'good' card, dumped it to a .eml file and used the `cload` command restore it. After this I was able to run the restore command and have it write successfully! I still don't have an understanding as to why this occurred sadly. If anyone has any idea why, I'm very curious.
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