Most Xperia S users would reckon being turned down by Sony’s repair centers because of the “illegal unlock” of their phones’ boot loaders. The paradox is that Sony itself is providing the boot loader unlocking tool.
Sony warned their users that their warranty would be void shall they ever unlock their boot loaders:
“Please note that you may void the warranty of your phone and/or any warranty from your operator if you unlock the boot loader.”
How could this ever be possible? Luckily PhoneArena reached out to contact Sony’s Mobile’s PR Manager and obtained a rather friendly reply:
“For most issues/problems, unlocking the bootloader voids the warranty. Sony Mobile only honors the warranty if it is a known issue in that model/batch of phones or if it is an issue that clearly could not have been caused by flashing a different ROM. Because a new ROM can have a wide range of consequences (e.g., it can overheat the battery or change the voltage, which can damage other components), that basically means that only a small subset of issues are still covered by the warranty. Therefore, even when the phone is in warranty, the service center usually has to do a very costly board swap to get the phone back to its original state before it can do any repair. The end-user has to pay for that part of the repair.
We are proud of providing the unlock feature to the developer community. Previously, there was a large risk of bricking the phone when unlocking with third-party software. Sony Mobile’s solution remove’s that risk. When we initially provided the unlock feature, it was presumed that only highly skilled developers and super-users would take advantage of it. From blogs and discussion boards, it was clear that the community understood the risks and that unlocking largely voided the warranty. It appears that less sophisticated users (despite all our warnings) might be using the feature, and are now surprised by the consequences. ”
It appears that Sony is against custom roms since according to them flashing unofficial roms could lead to unexpected circumstances like overheating and battery issues. Our Android modding community would certainly disagree with that bold statement but this decision comes once again against Android modding, another attempt to prevent users from harnessing the full power of their Xperia smartphones.