a) Try to restart your device.
b) Charge your device until the battery level is at least 20%.
c) Too many apps running in the background or the system cache not being cleared may cause a system lag. Touch the Menu key at the bottom corner of screen to view recently used applications. Touch “Clear all” to close the tasks.
d) Uninstall unused apps from time to time to ensure that your device has sufficient storage space.
e) If the issue occurs in third-party apps, please uninstall the third party apps responsible.
f) If you are playing a game, watching online video or listening to online music, your device may lag or freeze because of a poor network connection. Enable Airplane mode for a few minutes, then disable it and check your network connection again. Alternatively, move to a location with a better network connection
g) Try to reset or update your device. (Refer to Q How can I perform a factory reset on my phone & Q How can I upgrade my device).
If the previously described options do not help, you can contact our hotline or repair center to get more professional technical assistance. Find the hotline or repair center information from the TCL (or Alcatel) website or APP “Support center”.