Link to method 1 • Не работает мобильный интернет на Poco X3....
Link to method 3 • Не работает мобильный интернет на Poco X3....
Command to call the engineering menu: #*#4636#*# IF YOU CANNOT ENTER IT IN THIS WAY, THEN TRY TAPING 5 TIMES ON INTERNAL MEMORY (about phone, then all parameters, scroll to the end and there should be internal memory).
select LTE/WCDMA in the engineering menu
APN address line:
Megafon - internet.megafon.ru
MTS - internet.mts.ru change the authentication type from "PAP" to "CHAP"
Beeline - home.beeline.ru
Tele 2 - client.tele2.ru change the authentication type to PAP
Yota - client.yota.ru change the MVNO type to IMSI.