Here’s a quick hack to check if 5G is truly off on your phone
For iPhone users:
→ Go to your keypad
→ Type *3001#12345#*
→ If it says LTE
You’re on 4G, the 5G radio isn’t being used.
→ If it says NR (New Radio) or NR-SA / NR-NSA.
That’s true 5G.
For most Androids:
Type: *#*#4636#*#*
Go to Phone Information, scroll down
You’ll see which network type is active (LTE, NR etc)
For most Samsung’s:
Dial *#0011#
If none of the above works,
Download Network Signal Info/NetMonster from Play Store.
