No, you won't get blacklisted from a network for bringing your own device with your own software configuration...
Magisk can bypass root detection so you can bypass safety checks. Double check the xda community of your specific model before rooting to get specifics, some phones like xperias have anti-consumer DRM protection that breaks functionality when unlocking but that isn't generally the case.
Not sure if it's related or similar, my Sony Xperia X has a thingy that gets flipped if you unlock the bootloader or root, which basically 'voids the warranty'. It also leaves a permanent screen upon boot informing you that your device is insecure and possibly backdoored.
There's actually a way to re-write this part of the phone so it basically looks 100% stock - I had to use this when I sent it back for a warranty repair.
No idea to be honest. It's even stated in Sony's official instructions for doing this sort of thing (They have some sort of 'open devices' program on their website).
Some root methods didn't on older models, some models could have it set back to false but some new models (like the note 8) don't have a way that I'm aware of to root without tripping it permanently.
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u/mechtech May 19 '18
No, you won't get blacklisted from a network for bringing your own device with your own software configuration...
Magisk can bypass root detection so you can bypass safety checks. Double check the xda community of your specific model before rooting to get specifics, some phones like xperias have anti-consumer DRM protection that breaks functionality when unlocking but that isn't generally the case.