
Ryan Haines / Android Authority
TL;DR
- Google’s October 2025 replace has damaged the Pixel IMS app, a device many used to allow VoLTE and VoWiFi on imported Pixel telephones in unsupported areas.
- The app exploited a loophole that allowed it to override service settings, which Google has now patched and designated as a high-severity vulnerability (CVE-2025-48617).
- Luckily, a brand new workaround has been found to allow VoLTE in unsupported areas, however customers who need VoWiFi should now both root their units or look forward to Google to formally broaden service assist.
Pixel telephones are beloved for his or her many distinctive software program options, however their restricted availability prevents many individuals from shopping for them. Whereas Google has made strides in increasing entry, Pixels nonetheless aren’t bought in practically as many nations as iPhones or Samsung Galaxy units. This leads many followers to import Pixel telephones from different markets, a transfer that may sadly break essential calling options like VoLTE and VoWiFi.
VoLTE (Voice over LTE) is the function that routes voice calls over a 4G LTE connection, an important perform now that carriers worldwide are phasing out their 2G and 3G networks. With out it, you may not be capable of make telephone calls in any respect on many fashionable networks. Equally, VoWiFi (Voice over WiFi) handles Wi-Fi calling, routing calls over a Wi-Fi community as an alternative of mobile — a useful function once you’re in a constructing with poor sign.
In concept, any telephone with the proper {hardware} for a service’s mobile frequencies ought to be capable of use VoLTE, and any succesful telephone with a supporting plan ought to get VoWiFi. The fact, nevertheless, is extra advanced. Many carriers solely allow VoLTE and VoWiFi on units they promote or have formally examined. Because of this even when your imported Pixel has the mandatory {hardware}, the service can nonetheless block these options, doubtlessly stopping you from making voice calls fully.
This situation plagued Pixel telephone importers till Korean developer Kyujin Cho launched a workaround in 2023. The developer’s app, “Pixel IMS,” permits VoLTE and VoWiFi on unsupported carriers by overriding the service verify that Android usually performs. Usually, Android makes use of a sign from the service to resolve whether or not to allow VoLTE for the system; the Pixel IMS app overrides this sign and forces it to at all times be enabled.
Overriding this verify isn’t one thing simply any app can do, because it’s a part of Android’s privileged telephony framework. That’s why Pixel IMS cleverly leverages a loophole meant for testing functions. Android permits the “shell” person — the identical person that runs ADB instructions — to override service configurations. To realize these elevated privileges, Pixel IMS makes use of Shizuku, an open supply Android app that lets different apps run processes because the shell person.
However loopholes don’t final ceaselessly, and after greater than two and a half years, Google has seemingly closed this one. Following the latest October 2025 Pixel replace, many customers found the “Pixel IMS” app was not practical, crashing when trying to toggle VoLTE or VoWiFi. The crash log offers a transparent purpose: “overrideConfig can’t be invoked by shell.”
Whereas not documented within the official changelog, Google seems to have quietly patched this explicit exploit. In accordance with a supply, the corporate has designated this loophole as CVE-2025-48617, a high-severity privilege escalation vulnerability. Its absence from the October 2025 Android Safety Bulletin is probably going as a result of it didn’t meet the “excessive threat” threshold for fast inclusion underneath Google’s new Danger-Primarily based Replace System (RBUS). Google will most likely embody it within the subsequent quarterly safety bulletin, scheduled for December.
Luckily for Pixel customers, one other developer has allegedly discovered a brand new workaround. Whereas the brand new technique isn’t as accessible — with the directions being in Chinese language and the APK distributed on the developer’s Telegram channel — it no less than appears to work.
Sadly, the brand new technique solely permits VoLTE and never VoWiFi, so Pixel customers in unsupported areas who want the latter function should root their telephones for now. Rooting requires unlocking the bootloader, which breaks some Gemini-powered options and complicates utilizing Google Pockets. The one different various is to attend for Google to formally allow VoLTE in additional markets — one thing the corporate lately signaled it’s engaged on.
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