I have a little problem with my iPhone battery (not charging) so i want to return it to Apple, but it has the BL downgraded by ziphone

I talked to a friend of mine who works at an apple store and i was told they are getting a memo on how to check the BL version via Field Test, soon.

I'm just lucky because he thinks he might be able to replace my phone before people know

So be very careful in using ziphone, it always downgrades your BL, even if you choose the Refurbish option