Last updated: Jun 4, 2026, 3:52 PM
Applies to: Toast POS app on Toast Flex, Toast Flex 3, Toast Go® 2, Toast Go® 3, Elo terminals, and Kitchen Display System (KDS) devices
Permissions needed: No specific Toast Web permission required; physical access to the affected device. If the device is in Kiosk Mode, then 3.7 - Void Items / Orders permissions will be required to get out of Kiosk Mode.
What you'll accomplish: Identify the symptom you're seeing, follow the matching troubleshooting branch, and either resolve the issue on the device or gather the info Customer Care needs before you reach out
| Important: Before resyncing data, factory resetting, uninstalling the app, or clearing data, check the device for unsettled credit card payments. Unsynced payments can be permanently lost. See Check Unsettled Credit Card Payments on Device. |
Most Toast POS app issues — frozen screens, app crashes, and missing icons — can be resolved by force stopping the app or power cycling the device. Use this article when the Toast POS app on a device isn't behaving as expected.
Quick fix for most issues:
| Symptom | Most Common Cause | Quick Fix |
|---|---|---|
| Screen is frozen, glitching, lagging, or unresponsive | Toast POS app needs a force stop or device needs a power cycle | |
| You see the "Unfortunately, Toast POS has stopped" error (also: app keeps crashing or force quitting) | App encountered a recoverable error | See If You See the "Unfortunately, Toast POS Has Stopped" Error |
| Terminal is stuck on the Toast logo at startup, won't boot past the logo | Deeper startup issue or device-level state | |
| Toast POS app icon is missing from the home screen | Icon moved to the App tray; the app does not need to be reinstalled | See If the Toast POS App Icon Disappeared From the Home Screen |
| KDS tickets freezing, failing to bump, or disappearing | KDS device alternating between Wi-Fi and Ethernet, or a KDS-specific issue | See If Your Kitchen Display System (KDS) Tickets Keep Freezing |
| Logged out repeatedly, kicked out in the middle of service, force stop and power cycle didn't help | Session needs to be refreshed or device data needs a resync | |
| Toast app hasn't updated to the latest version | New touchless installation hasn't taken effect | |
| Toast Go® 2 or Toast Go® 3 handheld isn't connecting, isn't accepting payments, or won't log in | Handheld-specific scenario | |
| Card reader isn't reading credit cards (tap, chip insert, or swipe), or you see an error code from the reader | Card reader hardware or software issue | |
| Hardware fault — half-black screen, lines through the display, partial-touch dead zone, flickering, blinking red LED, won't power on at all | Hardware-level issue that can't be resolved by software troubleshooting |
A frozen screen is the most common Toast POS app issue. Recovery depends on whether the screen still responds to touch.
Expected outcome: The Toast POS app reopens to the passcode screen and is responsive.
If force stopping the app didn't resolve the issue, the next step is to log out and back in — see If Logging Out Doesn't Resolve the Issue.
Expected outcome: The device powers up and the Toast POS app loads.
For full restart steps by device type, see Restart Your Device to Improve Performance. If the power cycle didn't fully resolve the issue, the next step is to log out and back in — see If Logging Out Doesn't Resolve the Issue.
If only part of the screen freezes — for example, half the screen is upside down, or one area won't accept touch — this usually indicates a hardware fault rather than an app issue. Skip the steps above and see Before You Contact Customer Care.
This message appears when the Toast POS app encounters an issue and closes itself — sometimes also described as the app "crashing," "force quitting," or "keeps stopping." Most cases resolve on the first try.
Expected outcome: The Toast POS app opens normally and you can resume use.
If the error appears repeatedly, force stop the app, using the steps in If Your Screen Is Frozen or Unresponsive.
If the device powers on, displays the Toast logo, and does not progress further, this usually indicates a deeper startup issue. Force stop and routine restart steps may not resolve a device that's stuck on the Toast logo.
Expected outcome: The device boots past the Toast logo and reaches the passcode screen.
If the device is still stuck on the Toast logo after a hard reset, see Before You Contact Customer Care to complete a factory reset or verify warranty status and discuss replacement.
If the Toast POS app icon is no longer visible on the device home screen, the app may have moved to the App tray. The app does not need to be reinstalled.
Expected outcome: The Toast POS app icon is back on the home screen and ready to open.
If KDS tickets freeze, fail to bump, or disappear after a force stop, the device may be alternating between Wi-Fi and Ethernet connections. The KDS device — sometimes referred to as the expo screen — should run on a single connection type. If your KDS is not using Wi-Fi as a primary connection, continue below.
Expected outcome: The KDS device runs only on the Ethernet connection, removing the connection-switching cause.
For KDS-specific troubleshooting beyond the Wi-Fi switching cause — for example, KDS tickets not arriving from the POS, KDS display fully unresponsive, KDS data corruption, or hardware-level issues — see Get Help With KDS Tickets and Get Help With KDS.
When force stopping and a power cycle haven't resolved the issue, log out and back in to refresh the app session. This is also the step to try when employees are getting kicked out repeatedly in the middle of service.
Expected outcome: The Toast POS app reloads with your session refreshed.
If logging out and back in didn't help, the next step is to resync the device's data.
| Important: Resyncing data can cause unsynced credit card payments to be permanently lost. Always check the Credit Card Queue first. Depending on your device, you may see Resync Orders, Resync Data, or Resync ALL Data in the overflow menu — these are different options. For full resync steps and which option to use, see Resync All Data on Your Devices. |
If the Toast POS app hasn't updated and the new touchless installation hasn't taken effect, you can update manually. For manual update steps, see Update Your Toast App.
If the Toast POS app on your Toast Go® 2 or Toast Go® 3 handheld isn't working — for example, the handheld won't connect to Wi-Fi or cellular, the screen is frozen, the device won't accept credit card payments (tap, chip insert, or swipe), or it keeps logging out — try the force-stop and power-cycle steps in the matching scenario above. The Toast POS app on a handheld responds to the same force stop, power cycle, log out, and resync steps as a stationary terminal.
If those steps don't resolve the issue, see Get Help With Your Toast Go® 2 Handheld for handheld-specific troubleshooting including charging issues, cellular connectivity, and device-level diagnostics.
If the card reader on your Toast POS device isn't working — for example, you see an error message such as "oops, something went wrong," a "device not responding" message, or an error code from the reader; or the reader won't accept tap, chip, or swipe payments — start by force stopping the Toast POS app using the steps in If Your Screen Is Frozen or Unresponsive. Many card reader symptoms resolve when the app is restarted.
If the issue persists after a force stop and power cycle, go to Get Help With Your Card Reader.
If the steps above didn't resolve the issue, gather the following before reaching out so Customer Care can assist faster:
Contact Customer Care if you see any of the following — these indicate a hardware fault that can't be resolved by software troubleshooting:
The Toast POS app crashing or force quitting on the device usually shows up as the "Unfortunately, Toast POS has stopped" error or as the app closing on its own without an error message. Most cases resolve on the first try — select OK on any error prompt and reopen the app. If the issue repeats, force stop the app from the device Settings using the steps in If Your Screen Is Frozen or Unresponsive and then reopen it. If crashes continue after a force stop, log out and back in to refresh the session — see If Logging Out Doesn't Resolve the Issue.
Also asked as: "Why does my Toast app keep crashing?", "My POS keeps force quitting the Toast app", "Toast app keeps stopping"
Resyncing data on your POS or handheld reloads the device's local data from Toast's servers. Before resyncing, check the device for unsettled credit card payments — unsynced payments can be permanently lost. Depending on your device, the overflow menu may show Resync Orders, Resync Data, or Resync ALL Data — these are different options. For full resync steps and which option to use on your device, see Resync All Data on Your Devices.
Also asked as: "How do I resync the POS?", "Resync data on handheld", "POS won't let me resync"
A POS that keeps logging out — sometimes described as "kicked out" or "the screen keeps going to the login screen" — usually means the app session needs to be refreshed. Log out from the overflow menu and sign back in with your email and password using the steps in If Logging Out Doesn't Resolve the Issue. If logging back in doesn't hold the session, the next step is to resync the device's data — but check the Credit Card Queue for unsettled payments first.
Also asked as: "Toast POS keeps logging me out", "Getting kicked out of the Toast app", "Screen keeps going back to the login screen"