Call of Duty: Mobile Known Issues, Workarounds and Fixes

Android: clear the game cache after the basic checks

For Android, Activision includes clearing Call of Duty: Mobile’s cache in Settings → apps → Call of Duty: Mobile → Storage → Clear Cache. Menu labels vary by device. This step concerns cached files, and should not be expanded into deleting all application data or account progress. [1]

Documented steps

1. Open device Settings, find the game under Apps or its equivalent, open Storage and choose Clear Cache. [1]

Connection failures or lag: check the network first

The game requires a network connection. Activision recommends a strong Wi-Fi connection and says restarting the router, when you have access to it, or restarting the device can refresh the connection. A local connection check does not prove that the online service itself is fault-free. [1]

App will not open, freezes or displays a black screen

Activision groups launch failures, freezes, crashes and black screens together for its initial troubleshooting. Try the app after each step so you know whether the change helped. Start with a device restart, then check for an app update and a device software update. These are official troubleshooting steps, not a guarantee that they resolve every crash. [1]

Progress does not follow a different Activision login

The account-linking article says progress is tied to the original Activision account linked to Call of Duty: Mobile. The link cannot be undone, and progress does not carry to another Activision account simply by logging in with other credentials. Check which account you are linking before treating a different login as a transfer tool. [2]