Phone constantly switching between LTE and 4G
I have one more day to return my phone and as much as I love this phone, I'm considering it because my phone is constantly switching to 4G HSPA+ instead of LTE. I'm in the middle of Los Angeles, and this even happens when I'm walking outdoors.
I can easily prevent this by changing the mode to "LTE Only" in the testing settings, and LTE works perfectly with no issues whatsoever. However, in this mode, calls do not work - it simply refuses to allow them.
Does anybody have any ideas? The speeds I get on HSPA+ are unbearable for some reason (see attachment). LTE works fine with about 8-12 mbit down.
I have tried changing the APN settings to be optimized for HSPA+ but it seems that prevents any access to LTE - which is opposite of what I want.