Question: I was testing my login/sign up feature and for some reason I can't understand Firebase now is blocking all requests from my device.

I've waited one day to try again, but I still have the same problem.

> 
> ERROR:
>  "We have blocked all requests from this device due to unusual activity. Try again later."
> 
> 
> 

What should I do to have access to my database again?

Answer: 
One of the possible solutions: 

1. Go to your Firebase console -> Auth -> Users table
2. Locate the user you are testing.
3. Delete this user.
4. Retest.
I have added my phone as a test number in the Sign-in method tab.

Actually this error occurs when your quota limit is exceeded.

Just add your number and testing OTP to get it worked.

[![enter image description here](https://i.stack.imgur.com/Oa9dt.jpg)](https://i.stack.imgur.com/Oa9dt.jpg)

> 
> Note: The testing number will not get any message of OTP as we already
>  defined static OTP code.
> 
> 
>