eli5 – why do phones with the previous generation of connectivity only work well on their most recent one?

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i had an lgg6 that had 4glte capability. it sucked on 3g and 4g, but 4glte was great. i now have an s20fe, which has 5g capability. 4glte acts like zero connection on this phone. it’s 5g, wifi, or no connectivity at all.

websites and apps didn’t all upgrade to require better connection in the time that my data was transferring, so what gives?

In: Technology

Try disabling the higher rate capability in data connection settings. It’s just an idea but maybe the phone is wasting time trying for them instead of getting on with using what’s available. Sometimes around here the 4G goes down and suddenly the 3G works well. HTH