In October 2025, Google updated its software, rendering the Pixel IMS app inoperative for users of imported Pixel phones in unsupported regions. This app had previously allowed users to enable VoLTE and VoWiFi by bypassing carrier restrictions. The update closed a loophole in Android's telephony framework, classified as a high-severity issue (CVE-2025-48617), leading to crashes when users attempted to toggle these features. While a new workaround exists for enabling VoLTE, it does not support VoWiFi and requires navigating instructions in Chinese. Users needing VoWiFi must either root their devices or wait for Google's official expansion of carrier support.