Samsung A53 5g network issue

[Shohelrana9n]

Ever since I bought this mobile it is giving network problem if I keep it on 2g then call comes but if I select 4G 5G no call comes no call no mobile data is not working is this solved mobile factory reset also done but didn't get the solution

[Shohelrana9n]

What is the reason for this? I am also changing SIM card twice but nothing works

[Shohelrana9n]

Network stays for 5-10 minutes and then goes away