Sony gets a high rank in our listing of toxic Android vendors as historically it was Sony who introduced the first very effective non-standard background process optimization and opened the Pandora’s box.

It is called Stamina mode and it instantly breaks all background processes and all alarms if enabled.

Solution for users

Never use Stamina mode if you want your phone to do something useful when you are not actively using it.

Try to make your app not battery optimized in Phone settings > Battery > Three dots in the top right corner > Battery optimisation > Apps > your app.

Solution for devs

No solution so far, there isn’t even an API to find out if the phone is in Stamina mode


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