Login with pin return 'Bad Requests'.

[libao3128]

Hi! I'm trying to create a login session with the 'pin' option. It raises the following error:
firstrade.exceptions.LoginResponseError: Failed to login. API returned the following error: Bad Request

I noticed that the response from the API contains the message: 'PIN verification is unavailable. Please use another method or contact customer service.' I'm not entirely sure what's happening. I'll try to investigate further and let you know if I discover anything new.

[BalanceBeamZhang]

Me too. I met the same error.

[MaxxRK]

I use the OTP method now and would have to remove that to test this. If you find out anything let me know or feel free to input a PR to fix it if you find a fix.

[nikeasyanzi]

I see the following error

Traceback (most recent call last):
File "/Users/craigyang/workplace/myfirsttrade/main.py", line 13, in
need_code = ft_ss.login()
File "/Users/craigyang/workplace/myfirsttrade/.venv/lib/python3.13/site-packages/firstrade/account.py", line 130, in login
raise LoginRequestError(response.status_code)
firstrade.exceptions.LoginRequestError: Error in HTTP request during login. HTTP status code: 401

1. Is there a place where we manually enter the pin?
2. The pin authentication is mandatory for now. It seems no way to switch to OTP method? anyone knows?