You have to get it from an event, but there hasn't been any event lately for Pokemon diamond/pearl. Most of the events are for platinum now, oaks letter was given out a feew weeks ago for platinum. You can keep a look out though by going to serebii.net
You get oaks letter from a special event that is on the internet or wifi. you get it from any poke-mart in sinnoh
with a Nintendo event or an action replay.
I am afraid you cant get it at the moment there is only two ways to get the oaks letter along with the azure flute and the membership pass is to go to an event that is giving them away. the other way is to "hack" your game using a cheat device like the action replay however using these devices can seriously ruin your game and sometimes delete your game altogether. at one time during the year there will be an event going on you go to a gamestop and it has instructions to get oaks letter but you have to have mystery gift.....you click mystery gift then it will say received oaks lette then you go to the nearnest pokemart and a guy will give it to you.....or you can just use gameshark or action replay!! hope this HELPED!!!!
No because it does mater
By action replay or events that that come rarely
its an item you bring to that rout east of the league to ge shaymin fljkfdljkfljkfdlk;dslk;lfdlkfdslfd
you don't use wifi to get the oaks letter.anyhow that's goes to get shamin. ONLY Pokemon PEARL/DIAMOND can get shamin.so how to get the oaks letter? you have to beat the elite four.then you fly to the Pokemon league go down the watterfall.NOTE! you only can get the oaks letter from pearl or diamond versions.go on Google.com to get through.! note you have to have the national pokedex.at the end you will see professer oak talk to him after that go to Google.com to find out more!!!!!!!!!! cheres
You have to get it from an event, but there hasn't been any event lately for Pokemon diamond/pearl. Most of the events are for platinum now, oaks letter was given out a feew weeks ago for platinum. You can keep a look out though by going to serebii.net
No.
you use a action replay and use it to get oaks letter
You can trade with someone who has Shaymin, but that's your only option. To get Shaymin, you need Oak's Letter or Action Replay.
get the oaks letter cheat on the action replay and talk to the guy in the pokemart
complete the national pokedex and go to canalave city in the pokemart and theres a man by the counter talk and he will give you give you gifts one of them may be oaks letter.
u can put a cheat on ur action replay for oaks letter
You get oaks letter from a special event that is on the internet or wifi. you get it from any poke-mart in sinnoh
no get an action replay type the code and then get oaks letter and go to route 224 at the mirror rock or go to an event