Call of Duty: Mobile lets you choose from the avatars currently available to your account. Open your Player Profile from your name at the top of the main screen, then select the existing avatar. Activision notes that more avatars unlock as you level up, so a missing picture may simply not be available yet.
Tap your current avatar in Player Profile. Call of Duty: Mobile should show the avatars currently available to that account.
5
Choose an available avatar
Select one of the available avatars and confirm the choice if the game asks. Do not expect an arbitrary phone photo or Facebook image picker; Activision documents the in-game available-avatar list.
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Return to the main screen
Return to the main screen and confirm the selected avatar appears on the same signed-in profile.
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Check availability before retrying
If the picture you want is absent, check the available list again after relevant in-game unlocks. Activision says more avatars unlock as you level up.
Video walkthrough
If it does not work
If Player Profile opens for an unexpected account, stop before changing the avatar and confirm which login is active.
If an avatar is not in the available list, it is not documented as selectable yet. Do not use third-party tools or account edits to force it.
ⓘ Sources and verification
Checked against official documentation on . Scope: iPhone & iPad & PC & mobile.
Follow the linked first-party guidance if labels differ after a platform or app update.