To save your account, you can go to the "Data Transfer Settings" from the Gear icon when you are in-game, then choose "Data Transfer with KONAMI ID". Register a new account if you don't have it yet and bind it to the account.
June 7th update
Recently, there were problems associated with making a KONAMI ID, which has now been fixed, but a new method to save your account is now added as well. You can now set up a data transfer to back up your account using Google Play Games. Simply log in to your Google Play account when you are in-game, and choose "Data Transfer Setup (Google Play Games)" in the Data Transfer Settings.
Setting up a data transfer
1. Tap a gear-shaped icon
2. Tap "Data Transfer Settings"
3. KONAMI ID or Google Play Games
You can link your game data to both a KONAMI ID, or Google Play Games. In case one of them isn't available, you can use the other to restore your data. You can link your game data to a different KONAMI ID, or Google Play Games if you accidentally used a different or wrong account, but it will replace the previous one. If you plan on transferring from using Google Play services to iTunes, make sure you use KONAMI ID instead.
3.5 KONAMI ID
If you are using KONAMI ID, login or generate first before linking your game data to it.
If you did everything correctly, your account is now saved so you don't have to worry about losing it if your phone is broken, a data error or if you uninstall the game. You will have to re-download all of the data files though.
Using your account on a different device
When you want to use your account on a different device, you will need to log in to your account. When you first launch the game, before you tap "INITIATE LINK!", tap the button below for "Data Transfer" and log into your account.
If you set up using a KONAMI ID, simply log in to your registered account that you linked your game data to. If you are using Google Play Services, make sure you are logged in to the right account.
If you lost your account before you managed set up a data transfer, you can try recovering it from the "Contact Us" and "Submit Player Data Recovery Inquiry" from the gear icon in-game.
1. Tap a gear-shaped icon
2. Tap "Contact Us"
3. Read through the description & Tap the button
4. Submit inquiry
You will need to provide your information as accurately as possible for them to be able to identify that it is yours. Simply giving them your player ID is not enough, since anyone can look that up and is not a very reliable information. Try to remember stuff like deck names, latest card obtained of certain rarity or what device you used it on.
Next step is to wait patiently and check your email for a reply from their support team.
I tried to set up my account on a second device and lost my account when the app downloaded on the new device and I lost my data. It took a week for Konami to recover my account and it was an absolute pain. I have since tried to re-install the app on my second device, had to go through the tedious tutorial yet again, and when I signed into my Konami Id and did the transfer, nothing happened and I have a brand new account on my Galaxy Tab which I have not bothered to play with. I dare not touch the data transfer icon on my phone because I do not want to lose all my hard work a second time. I'm dreading when I get a new phone.
i am not able to transfer my data to google play and i am not able to koppel my konami account to my duel links id . i have that problem sids i start't playing this game i am over 700 day's now playing 1000's off euro's in to cards but still not able to data transfer or connect to my konami id account so any help please
If you're still believe in the heart of the cards, you still have a chance. The real duelist never give up !
I use IOS fhone then i can't log in konami id on android, he says my id or pass is wrong but when i use IOS click and submit y id and pass its not same as android. So how? Plezz i want my acc on ios play ay android hmm