App Problems on Android and iPhone
An application that stops working does not necessarily have a problem with the application itself.
The cause may be the internet connection, the phone’s operating system, permissions, battery restrictions, storage, the application installation, the user’s account, or the online service behind the app.
That is why troubleshooting should begin by identifying exactly what is failing.
If one application fails while other apps and websites work normally, an app-specific problem becomes more likely. If several applications cannot connect to the internet, the phone’s network connection deserves attention instead.
The Apps Problem section contains troubleshooting guides for popular mobile applications and services. These guides focus on specific symptoms rather than recommending the same generic reset for every application.
Useful questions include:
Does the problem affect one app or several? Does the app work on Wi-Fi but not mobile data? Does the website version work? Does the same account work on another device? Did the problem start after an application or operating-system update?
Answering these questions can help separate an application problem from a network, device, account, or service problem.
Avoid factory-resetting your entire phone because one application is malfunctioning. Start with the application and the specific symptom before changing device-wide settings.
If Messenger voice messages are not sending, first determine whether the problem happens when you record, when you send, or while the voice message is uploading. That distinction can tell you whether to check the microphone, app permissions, Messenger, or the network connection. What happens when you try to send a voice message? The quickest … Read more
Quick Answer If TikTok is not working on your Android phone or iPhone, first identify what exactly is failing. If the entire TikTok app will not open, load videos, refresh the For You feed, or stay connected, close the app, restart your phone, switch between Wi-Fi and mobile data, and check for TikTok and phone … Read more
Quick Answer When the Messenger camera is black, unavailable, frozen, or unable to take a photo or video, first check whether Messenger has permission to use the phone’s camera. On Android 12 and later, also confirm that the device-wide Camera access control is enabled. Test the normal Camera app afterward. If the camera works outside … Read more
Messenger video calls can fail in several different ways. The call may stay on Connecting, the other person may not see your video, you may have no sound, the screen may stay black, or the call may disconnect after a few seconds. The cause can be your internet connection, camera or microphone permissions, Bluetooth audio, … Read more
Quick Answer When Messenger is not working, first identify whether the app will not open, messages will not send, notifications are missing, calls are failing, or only one conversation is affected. These symptoms can require different fixes. Start by testing your internet connection, closing and reopening Messenger, restarting the phone, and updating the app. On … Read more
Quick Answer The Facebook “Session Expired” error means Facebook is asking you to sign in again, but the message alone does not tell you exactly why the session ended. If it happened once: sign in again through the official Facebook app or Facebook.com. If Facebook keeps showing “Session Expired” after you log in: test Facebook … Read more
Facebook notifications not showing, arriving late, or appearing only after you open the app? The most common causes are disabled Android notifications, Facebook notification preferences, Do Not Disturb, Data Saver, or battery-saving restrictions. Start with Android notification settings and Facebook’s own notification settings. If notifications only appear when you open Facebook, check background data and … Read more
If Facebook comments are not showing, not loading, missing, or stuck on a loading screen, first check the comment filter and test more than one post. If only one post is affected, the comments may be hidden, deleted, filtered, restricted, or unavailable to your account. If comments are missing from multiple posts, compare the Facebook … Read more
Facebook Reels may stop loading, keep buffering, show a blank screen, fail to refresh, or refuse to play even though other parts of Facebook work. The fastest way to find the cause is to test another Reel, another internet connection, and Facebook in a browser before changing anything major on your phone. Quick Fix Try … Read more
If Facebook Marketplace is not working, missing, unavailable, not loading, or suddenly disappeared, first determine whether the problem is with your Facebook account, the Marketplace feature, the Facebook app, or your internet connection. The fastest test is simple: open Facebook Marketplace in a mobile browser using the same Facebook account. If Marketplace is completely missing … Read more