Tl;dr: don't count on getting an out-of-warranty device fixed at the service centre. They will ask you to change a whole bunch of unrelated parts without even checking if it's needed, and charge you for more than a new device is worth. My GWA2, out of warranty since 2 months back, just one day decided not to power on. It would either keep rebooting every 5 seconds, or be totally unresponsive. Never showered with it, never swam with it. Brought it down to the service centre, they told me that there was water corrosion, and they were able to tell me this in just a 30 second "diagnostic" which they were somehow able to do without even opening the device up. To fix this, I would have to change the PBA, battery AND the rear case (the latter two of which were apparently not even needed, but it just had to be done together), and they wanted to charge me $280SGD. Asked if it would be possible to speak with the technicians to understand why all three needed to be changed, but was told they were simply too busy. Well of course, they'd be busy, with all these extra parts they didn't need to change in the first place.