PHHey, this tutorial is working for several user to activate 5G on unsupported 5G country by Google.
You need : Rooted phone, 5G Plan, 5G Coverage.
STEP 1 : Install Network Signal Guru on the Play Store.
STEP 2 : Click on the 3 dots, Forcing control, select your sim card. Sim1
STEP 3 : Click on NR SETTING, and on ENDC MENU select
[2]OPT3(0x01) or [5]OPT2(0x10) or pwede din select niyo yung dalawang OPT
STEP 4: Reboot Phone
if you are on 5G coverage, it should be working for you.
If your carrier doesn't allow you to select 5G preferred network on settings, you might have to select "NR/LTE/GSM/WCDMA" under Preferred network on the hidden ##4636##
Of course, you do it on your own risk.
Actually worked on Philippines.
Worked on A12 and A14+
Since wala akong nakikitang guide about sa device na to. Ito may nahanap akong guide para sa P6P sa XDA.
CREDITS kay Meroine95 senior member of XDA.