First of all, this thread is dedicated exclusively to the 3rd generation Fire TV Stick and you are talking about the 4K device, which is a different story.Hi,
I've two question about this topic:
- if I bought a new FireStick 4K by now, it should be already patched or is there any possibility it has FireOS < 220.127.116.11
When the device arrive is there any check I can do before opening the box? (eg. manufacturing date or similar)
- in the case the exploit work can I still use apps for streaming (eg. Netflix, Disney+, ...) or the root will break anything on DRM libs?
In your case, if you receive the device with something lower than FireOS 18.104.22.168, you should be able to use the preloader-exploit to unlock the device.
Yes, DRM (Netflix, HBO, Prime) will still work after unlocking the bootloader, as long as you don't erase IDME/KB/DKB.