I have Completed the Kanto Pokedex and all the requirements like beating red to enter Trainers valley but it still doesn't allow me and also i have proof that i completed the Kanto Pokedex.https://imgur.com/UivZiEH https://imgur.com/a/NGtu3

Make sure that you defeated Karate master at Mt.Silver and Trainer Red at the summit. Then try again to go through the train between Saffron city and Goldenrod city.

I have defeated the karate master and Trainer Red on the month of May this year and I still can't enter Trainer Valley.

Well, maybe it's too late, but did you talk to Professor Oak?

Honestly, I would not be surprised this is bugged. I disconnected (as usual - my wi-fi, not PRO) on my fight with Red at the top of the Summit - then come back to try it again and he said something which I cannot recall by quote. Anyways, he left as if I beat him, I go to take the train there, I meet him at a tree at the end of a cave in T.V. yet I am told I need to train harder and come back again.

 

I would also recommend waiting to retry it again. Should the issue persist, then we riot (kidding)!

 

 

Best of luck; will be staying informed too.

you need a certain number of dex captured data to access trainer's valley if i recall correclty

~ Moved to proper forum ~