Currently, Nickel's smartphones have recently inflected on Pixel phones by Google, which features VoLTE: Voice over LTE. Until few weeks ago, this could be enabled by anyone worldwide through an Android hack or modification. Unfortunately, Google has effectively blocked the use of this feature entirely.

VoLTE Is and Its Importance
VoLTE is Voice over LTE and provides voice calls high-quality ones with different networks at 4 long wavelengths. This is the standard where, in many cases, voice clarity is very much improved. High-speed connections are important among other things; they improved.
VoLTE has now become the standard technology that is adopted revoltingly in several countries. Others still consider such countries as unofficial or limited to the networks in question. This limitation is what led many Pixel users to try to activate manually.
The Hack's How It Works
Well, technically savvy users could activate such features as VoLTE from their Pixel phones through changes in ADB command or other modifications to some system files, such that it would run on the phone, bearing no regard to the network operator's endorsement.
But then, Google deemed said of these loopholes as security risks. modding the system level places a whole risk on the stability and security of the phone.
What Is New in The Update From Google
The company closed that hack in the latest android update ensuring there is absolutely nothing for anyone to forcefully have VoLTE working in countries beyond the network's technical support; they really won't work.
That too was targeted to keeping the stability of the software running inside the mobile well secured.

User Response
Too bad for a majority of Pixel owners, that decision does not sit well with them. Some of them travel to foreign countries and require foreign SIMs. Blocking VoLTE, they say, hobbles a fantastic feature in the phone for no good reason.
Others would take this to be a move in the best spirit of security, implying that trying to gain access to the system is always risky.
There is going to be more safety and reliability than flexibility users are promised to have. It's a two-sided thing: one-side is security, whereas the other side is flexibility in features. This is what Google has to balance: security versus flexibility. Perhaps in the future, it might allow users to configure their very own VoLTE setup tools again.
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