Hi there! I understand that you're having trouble logging in on your mobile, and it seems like you're getting stuck in a 502 Bad Gateway refresh loop. I can help you with this!

The 502 Bad Gateway error usually indicates a problem with the server that you're trying to reach, but there can be some client-side issues too. Let's go through some steps to try and resolve this:

1. Refresh the Page: Sometimes, a simple refresh can resolve temporary glitches. Try pressing the refresh button on your browser or pulling down on the screen if you're using a mobile app.

2. Clear Cache and Cookies: Clearing the browser cache and cookies can get rid of any stored data that might be causing the issue. Here's how to do it:
- On your mobile browser, navigate to Settings > Privacy > Clear browsing data or Cache.
- Select "Cookies and site data" and "Cached images and files," then confirm.

3. Check Internet Connection: Ensure that your internet connection is stable. Try switching between Wi-Fi and mobile data to see if that helps.

4. Use a Different Browser: If the problem persists, try using a different browser or even a different device to see if you can log in successfully.

5. Restart Your Device: Sometimes, a quick restart of your mobile device can do wonders. It resets any active connections and clears up any issues.

If you still encounter the error after these steps, it could be an issue with the FET server itself. In that case, I recommend checking their official status page or reaching out to FET support directly at [email protected].

Let me know if you need further assistance or if any of these steps helped resolve your issue! Are you satisfied with the solution I provided?