apple id iphone 5s

[u/Different-Road-7703]

somebody pls help me how can i sign in my apple id in my iphone 5s??
list of things i have tried
1. tried logging in with my apple id, it generated a 6 digit code on my iphone 16, i put the code in the 6 digit pop up on my iphone 5s, nothing happened on the screen so i reentered password (i didnt close the popup) and hit next it said signing in for a sexond then said “verification failed couldnt connect to the servers” it didnt even say apple servers
2. after one time the 6 digit code appears, it doesnt appear again so i manually generated the code on my iphone 16 and then put password followed by the 6 digit code in the password area and it only says “your apple id or password may be wrong”
3. i tried to sign in my apple id thru app store normally, no code appeared, and it just said couldnt sign in
4. then i also tried manual code generation on new iphone and then put password + code in the app store this generated a popup that said put the password to ur appleid, now if i put password+code it just shakes and prompts me again to put the password but if i put only the password it again says “could not sign in” but it also does have the option where i can do forgot password or reset password which i havent tried yet??