Why won’t the Sony Xperia 10 VI get the Android 17 update it was promised, and what should you check before buying your next phone?

Sony says a technical assessment found storage-configuration limits keep the Xperia 10 VI from an adequate Android 17 upgrade, despite a promise of three major OS updates. Here is how to check any maker’s update promise before you pay.

You picked the phone partly because it was promised three major Android updates — and now the biggest one is not coming. Short answer: Sony says a technical assessment found the Xperia 10 VI’s storage configuration cannot support an Android 17 upgrade it considers adequate, so this midrange phone will not receive the third major OS update in its original promise. Modern Android versions and their system partitions keep growing, and on a phone whose storage layout leaves little headroom, Sony judged the result would not meet its bar.

The phone’s security support continues, but the headline promise is broken — and it is a useful lesson in how to shop, because every brand makes these promises and they do not all age equally.1. Get the promise in writing. Before buying, find the maker’s stated numbers: how many major OS updates, and how many years of security patches.

Save a screenshot.2. Count security years separately. Security patches protect you long after new features stop; a long patch runway can matter more than one more OS version.3.

Leave storage headroom. Prefer 128 GB or more, and check how much space the system already occupies — updates need room to land.4. Check the maker’s track record.

Search whether that brand delivered its past promises on midrange phones, not just flagships.5. Verify early, while you can still return it. After setup, confirm the current OS version and the published update policy for your exact model.Pro tip: The common mistake is hearing “three updates” in a shop and never writing down which three, starting from which version.

A promise you cannot quote is a promise you cannot enforce.Ad’s take: A broken update promise is not the end of the world — the phone still works — but you paid for those years. Next time, buy the promise in writing, and buy the storage to match.