eFootball Link Data or Data Transfer Not Working? Fix 403 and Account Recovery Problems

If Link Data or Data Transfer is failing in eFootball Mobile, do not treat every symptom as the same account problem. KONAMI documents several different failure paths: a 403 Forbidden page during Link Data, using a platform backup on the wrong operating system, signing into the wrong or inaccessible KONAMI ID, or losing the original installation without ever preparing Link Data. Those cases need different fixes. This guide starts where the normal setup guide ends: something has already failed. Work from the symptom, try the lowest-risk official path first, and only move to manual account recovery when the self-service transfer methods cannot restore your data.

1) Identify the failure before changing anything

Put the problem into one of four buckets: Link Data itself will not open or shows 403; Data Transfer opens but does not restore the expected account; your only backup method belongs to a different operating system; or you deleted/lost the old installation without a usable link. Reinstalling repeatedly will not fix a 403 caused by the network path, and changing Google accounts will not make an Android-only backup become an iPhone transfer method.

2) 403 Forbidden during Link Data: KONAMI's documented cause

KONAMI's eFootball Points site documents one specific cause for 403 Forbidden during a Link Data action: internet access that passes through a cloud provider or hosting provider. KONAMI tells users to use an environment that does not pass through that infrastructure. The practical first test is therefore a normal trusted connection. If a VPN, proxy, remote network or similar setup is routing your session through hosted infrastructure, removing that intermediary is a reasonable troubleshooting step. This is an application of KONAMI's guidance, not a claim that every VPN causes 403.

3) Do not create a new KONAMI ID just because you saw 403

A 403 page is an access failure, not proof that your existing KONAMI ID is corrupt. Creating a new identity can make the recovery story harder because you now have multiple accounts and no clearer link to the original game data. Fix the connection path first, then retry with the same account you previously used. If My KONAMI accepts that account but the in-game Link Data flow still fails, keep that distinction in your notes.

4) Data Transfer opens but restores nothing: match the original method

KONAMI's self-service recovery begins at [Title Screen] > [Data Transfer]. If your data was linked to KONAMI ID, choose the KONAMI ID transfer option and sign into the same account. If the backup used Game Center or Google Play, select that matching platform route. A common troubleshooting mistake is choosing a different method from the one configured on the old device and concluding that the data vanished. Start by proving which backup method actually exists.

5) Android ↔ iPhone: why a platform backup can fail

KONAMI's Android support says a Google Play backup cannot restore the account after moving to a different OS; the iOS support gives the corresponding warning for Game Center. These platform methods are useful inside their own ecosystems, but they are not universal cross-OS transfer paths. If you changed from Android to iPhone or the reverse and never linked KONAMI ID beforehand, repeatedly signing into the platform account does not bypass that limitation.

6) Forgot the KONAMI ID password? Fix account access first

If the game data is linked to KONAMI ID but you cannot sign in, this is primarily an account-access problem. KONAMI directs users who forgot the password to My KONAMI to request a new one. Recover access to the same KONAMI ID, then retry Data Transfer. Creating a new ID does not move the old link automatically.

7) Unsure which KONAMI ID you used

When multiple email addresses or KONAMI IDs are involved, random login attempts create more confusion. Check mail history from My KONAMI, previous account-linking records and any notes you kept when setting up the game. KONAMI also provides a contact route for users who lost the KONAMI ID used for backup. The goal is to identify the original account before making new links.

8) Deleted the app without ever setting Link Data

This is not a hidden-menu problem. KONAMI's support routes users who changed devices or deleted the app without configuring data transfer to the account-recovery inquiry flow. Before that, try the official transfer methods you genuinely had configured. If there is no usable linked backup, repeated installation attempts do not manufacture one.

9) When does KONAMI accept a manual transfer request?

The official 'About transferring my data' page says KONAMI accepts a data-transfer request when you cannot perform the transfer yourself. Before contacting support, it asks you to try KONAMI ID and the relevant Game Center/Google Play transfer from the title screen. Manual recovery is therefore a last layer after the normal linked-account paths fail, not a faster substitute for them.

10) What proof can support require?

KONAMI says it needs enough information to identify the account and confirm that you created it, and specifically asks for a receipt issued when an item was purchased when available. If the submitted information cannot establish the account and ownership, the transfer request may not be accepted. Prepare your User ID if known, linked email, old-device details and official purchase receipts before filing the inquiry.

11) Manual recovery can take weeks

KONAMI warns that identifying the account and confirming identity may take several weeks, and it does not provide progress updates during the investigation. Sending repeated duplicate inquiries is not a shortcut. Submit a clear case once, monitor the email address used for support and make sure mail from @faq.konami.com can reach you.

12) Should you reinstall again?

One reinstall may be necessary to get back to the title screen after the app was deleted, but repeated reinstalls do not change what account was linked. If the problem is the transfer method or account identity, focus on the backup path: which account was linked, whether the OS changed, whether My KONAMI works, and whether Link Data itself is returning 403.

13) Could it be a service issue instead of account loss?

KONAMI's mobile support tells users to check Help and FAQ first and notes that known performance problems are posted on the in-game News board. If transfer trouble coincides with a documented service problem, do not immediately assume your account data is gone. Separate a temporary service failure from the absence of a valid backup.

14) Avoid third-party recovery services

You do not need an unofficial intermediary to use Data Transfer. Use the game, My KONAMI and KONAMI's official mobile support flow. Do not hand over passwords, verification codes or full payment credentials to someone promising to 'restore' your team. If support asks for proof of purchase, submit it only through the official process.

15) A practical decision tree

403 page: change the connection path and retry Link Data. Data Transfer opens but no account: match the original link method. Different OS: use the previously linked KONAMI ID rather than relying on Game Center/Google Play alone. Forgotten password: recover the same KONAMI ID. No usable link or all self-service methods fail: gather proof and open the official inquiry. Do not jump to the next branch before checking the previous one.

16) What to record before contacting support

Save the exact error message, User ID if available, old and new device models, operating systems, the link method you believe was configured, the KONAMI ID email and an approximate date of the last successful login. This is Zaplat's organization checklist rather than a formal KONAMI field list, but it helps you give a coherent account of the problem. Do not include passwords in screenshots or notes.

17) How this differs from the general Link Data guide

The general guide is for prevention: linking before deletion or a phone change. This troubleshooting guide begins after something fails—403, an account that will not restore, an OS mismatch, lost login access or no usable backup. If nothing is broken and you only need setup instructions, use the general Link Data guide instead.

Troubleshooting checklist

• Classify the failure: 403, Data Transfer, cross-OS, login access, or no usable link.
• For 403, try a connection that does not pass through a cloud/hosting provider.
• Use the same KONAMI ID or Game Center/Google Play method used for the original backup.
• For iOS↔Android moves, use a previously linked KONAMI ID if available.
• If the password is forgotten, recover the same KONAMI ID through My KONAMI.
• Do not create a new account as a random fix.
• Try official self-service transfer methods before requesting manual recovery.
• Prepare purchase receipts and ownership evidence if support is needed.
• Monitor email and allow messages from @faq.konami.com.
• Do not share passwords or verification codes with third-party recovery services.