Android device:
Clear cache:
1. go to Android settings > Apps > locate RetailTime app > Storage > Clear cache
2. deactivate the register in Back Office3. log into the app4. re-connect all the hardware that was connected to you POS (printer, cash drawer, credit card terminal, barcode scanner).In case the app still does not work, please re-install the app and proceed with the steps 2-4.POYNT
Clear cache:
1. go to POYNT Settings > About
2. tap 10 times on PoyntOS Version
3. enter PIN 157953
4. go back to Settings
5. go to Developer Preferences > System > Apps
6. swipe left twice to see ALL apps
7. find and tap on RetailTime
8. click on Storage > Clear cache and data
9. repeat steps 1-4 to lock down Developer Preferences
10. deactivate the register in Back Office
11. log into the app
12. re-connect all the hardware that was connected to you POS.