The interactive map is the core of Flightradar24, so when it hangs or shows a blank screen, the culprit is almost always the browser cache. Clear it fully, reload the page, and check whether hardware acceleration is enabled in browser settings — on older GPUs it can cause WebGL rendering to collapse entirely.
If plane icons freeze in place and timestamps stop changing, first check your internet connection speed. The live feed requires a stable connection — even brief packet loss causes the tracker to stall. Try switching from Wi-Fi to mobile data to confirm whether the issue is on your network side.
On both iOS and Android, a corrupted local cache is usually to blame. Steps to fix it:
When searching by flight number or route gives nothing, double-check the format — Flightradar24 expects IATA codes like BA203, not free-form text. Also, some regional or charter flights simply aren't covered. If a valid flight still doesn't appear, the data feed for that airline may be temporarily delayed.
Failed purchases in the app are almost always a platform issue, not a Flightradar one. Check that your payment method is valid in Google Play or the App Store, that your billing address matches, and that your bank isn't blocking the transaction. On the web version, try a different browser if the checkout button doesn't respond.
The app shows a 'no signal' status when it can't reach the data servers. This differs from a map freeze — here the connection is dropped entirely. Toggle airplane mode on and off to reset the network stack, or switch between Wi-Fi and cellular to see which one actually has a working route to the outside.