Hmm ok and where are you placing your t5577 disc on the proxmark3? Have you also tried putting some space between like 2cm to 5cm during the write process?
nothing changes. the clone command shows ok if there are no tag at the reader to
ok hmm… I think maybe its time to explore a wipe command on the T5577 to see if it can be wiped / changed
lf t5 wipe
Once run succesfully, the lf search command should fail to return anything… but the lf t5 detect should detect a T5577 chip. Keep in mind that write commands to the T5577 chip do not check themselves… the RF is output but the chip is not checked to confirm the write process succeeded… so you can’t assume a successful command execution means the chip has been successfully written to.
ahhhhhhhh
yes that is a problem.
first possibility is the setting of a password on the T5577… the white cloners will often set a password… i think there is such a password that is basically universal across the white cloners which has been documented here on this forum, but I have no idea where… @Pilgrimsmaster might recall… he holds the entirety of this forum in his librarian mind 
the other issue with the white cloner is that it is known to some how “alter” the configuration of the T5577 in a way that is definitely not for the better… but I think (think) the wipe command may fix that… but you will need to use the wipe command with the password to actually wipe it.
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maybe…
you could check this out and try it
the syntax may have changed since @TomHarkness found it, but the principle should be the same
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it looks like it’s the wrong password. none of the lf t5 detect commands works.
i get the error
[!] 
Could not detect modulation automatically. Try setting it manually with ‘lf t55xx config’
Here, try the Blue Cloner Password…Just incase
Again, the syntax may have changed, just follow through the prompts as the Proxmark steps you through it
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I just had another thought 
Test mode !!!
@fraggersparks has a short guide here, It definitely may be worth a try on both the White Cloner AND the blue cloner passwords
it don’t works. i found a guide but is there a way to do the same without a gui?
https://www.drassal.net/wp/index.php/2021/02/19/investigating-blue-125khz-rfid-tags-from-china-bought-off-amazon-with-a-proxmark3/
Did we confirm that you don’t have mismatched firmware?
You are running this on a iOS correct?
no on a mac
if i follow the link i posted and saved the data i get this. i don’t have a gui and can’t analyse the waveform. can someone with a gui do that? here is the files
https://drive.google.com/drive/folders/1cHk0LUXESffEhAGYd4EnXPkQK1FO38rP?usp=sharing
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@ Pilgrimsmaster
i reinstalled the pm3 client with gui. i get this image. how can i get the hex-data from the image?
Hi @jens you don’t need to do all that, just try using the commands @Pilgrimsmaster quoted;
Try and rewrite the bare config block 0 data using this command:
lf t55xx write b 0 d 000880E0 p 51243648 t
Then run a:
lf t55xx wipe
After this, see if you can run a:
lf t55 detect
and report back.
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i can’t detect it at all now after success wipe and clone. i sniffed the password from the cloner but now no device detects it.
the passwords i found is
19920427
002F8F8F
Ok so now try to write with a clone command
nothing happens
If you’d like to try doing a remote session we can see if your t5577 is recoverable…