[Bug]: My 3ds serial is apparently "invalid"

[TamblesMambles]

Checked Existing

• I have checked the repository for duplicate issues.

What happened?

Basically i looked at Charles as I couldn't login to pretendo on my 3ds but got the error serialNumber format Invalid

My serial number in question is CW72306062

My Wii u works fine but the 3ds doesn't.

What did you expect to happen?

The /v1/api/oaurh20/access_token/generate to give me my access and refresh token

Steps to reproduce?

Connect to Charles proxy using 3ds

Try logging into Miiverse or any other PNID service on 3ds

Gives me the error in the access_token route response

Other relevant information. (OPTIONAL)

I tried putting my Wii U serial number using rewrite on Charles but it seems to also give me invalid serialNumber which is werid since I can use that Wii u no problem

[jonbarrow]

What does NASC report. We don't have any entries for a console with that serial number in our database, and NNAS assumes that you've hit NASC at least once beforehand which is where the 3DS would have been added to our database

[TamblesMambles]

The nasc domains response is retry=MQ**&returncd=MTAy&datetime=MjAyNTAxMjUxNzAwMTA

[jonbarrow]

You're using a banned device. This error is only sent in one of 2 instances:

1. Your device has registered itself with our servers before, but the PID the console is using is not valid or is banned. This can only happen if:
   • You've changed your save file so that the PID is not valid
   • You've changed the request in some way and the PID is not valid (such as using an entirely spoofed PID, or your console still has the Nintendo profile loaded but you've used a proxy server to change the URLs so you're sending a Nintendo PID instead of your Pretendo PID)
   • The PID is valid and found by us, but the account associated with the PID is banned
2. Your devices unique LFCS is valid but has been banned (usually caused by LFCS sharing or trying to ban bypass on NN using public seeds which are now banned, or you've just been banned)

[TamblesMambles]

Might be because I was using a public seed which sadly I don't have a backup of the original one rip

[AToska21]

Try this maybe?
https://github.com/Preloading/Restore-LFCS_B/releases/latest