Getting the “Error Code 400, Detail Code 9007” error on Pokémon HOME? Don’t panic. Here is the complete 6-step guide to fix it immediately and get back to transferring your team.
If you are currently trying to use Pokémon HOME to move your favorites into Pokémon Champions or Legends: Z-A and suddenly encounter a roadblock, you are certainly not alone. Many users report seeing the specific, frustrating message below:
“Error Code: 400, Detail Code: 9007”
This specific Pokémon HOME error often strikes without warning. It can appear even when your internet connection looks normal and other apps load perfectly. While it disrupts your workflow, the good news is that this issue is usually temporary. Furthermore, it rarely results from user error, so you haven’t broken anything, and your Pokémon are not lost.
In this comprehensive guide, we will walk you through exactly what this error means, why the mobile app or Switch version might fail to respond, and the specific steps you must take to fix it quickly.
What Does “Detail Code 9007” Mean in Pokémon HOME?
To better understand the problem, we must first define what the error actually signals.
This message means Pokémon HOME was unable to process your specific request—usually an authentication or synchronization request—at that exact moment. It does not automatically indicate an account ban (which usually shows codes like 10015 or 10016), a permanent failure, or that the Pokémon HOME server has crashed completely.
Think of it like a digital “handshake” failing; the app is trying to verify who you are, but the server doesn’t recognize your current “key.” In most cases, the error points to one of the following specific triggers:
- A session or authentication mismatch: Your digital “key” to the site has expired, often after a password change or email update.
- An unaccepted legal update: You have new Terms of Service waiting for you on the console version.
- A transfer “limbo” state: Your Pokémon are mid-transfer and the server is waiting for a timeout to reset.
- App Logic Failure: As noted by community members on Reddit, the app is sometimes not coded to handle credential changes gracefully, requiring a manual refresh of the login token.
Users commonly experience this Pokémon HOME not working error in different ways. You might see it right after clicking “Start” on the mobile title screen, repeatedly while trying to link a Nintendo Account, or specifically as a 9007 transfer failed Pokemon HOME message when moving boxes.
Why This Error Happens
Based on real usage patterns and technical analysis from the community (including the 2026 Pokémon Champions launch), this error usually stems from one or more of the specific reasons below.
1. Account Sync Mismatch
If you recently changed your Nintendo Account password or email, the app’s old “session token” is now invalid. The browser or app keeps sending “confused” data to the server, which the server consistently rejects.
2. Terms of Service (TOS) Updates
Often, the mobile app will reject a login if there is a pending legal update on the Nintendo Switch version. You must accept these on the console before the mobile “handshake” can complete. This is the most common Nintendo Pokemon Home 9007 trigger.
3. Cached Data Corruption
A corrupted app session can cause the error to repeat instantly. In these cases, refreshing alone won’t help because the stored data itself is bad. This often leads to a Pokemon Home 9007 mobile app fix being required.
4. The “Pokémon Champions” Transfer Bug
As of 2026, high traffic during transfers to newer titles like Pokémon Champions can cause a temporary sync failure. This often leaves Pokémon in a “limbo” state where they appear visible but are locked. This is known in the community as the Pokémon Champions transfer bug.
5. “Vinculate” or Browser Crashes
If your mobile browser crashes during the account linking process (sometimes called “Vinculate” in Spanish settings), it leaves a half-synced state that triggers Detail Code 9007.
6. GTS and Wonder Trade Lag
Official support documentation indicates that heavy usage of GTS or Wonder Trade features, or having modified Pokémon in your boxes, can slow the app down and trigger a Home server connection error that manifests as Code 9007.
Quick Checks Before You Try Fix
Before you dive deep into troubleshooting settings, run through this diagnostic checklist to save time:
- Does the error happen every time you try to log in?
- Do you have your Support ID (found in the top-left corner of the title screen) written down or screenshotted?
- Does the same issue occur on the Nintendo Switch version, or is it only on mobile?
- Did you recently change your Nintendo Account password?
- Is your mobile browser working correctly? (If the browser crashes during login, the app will fail).
How to Fix Pokémon HOME Error 9007: 6 Step Guide
To resolve this efficiently, follow these steps in order. We strongly recommend that you do not skip ahead, as the simpler fixes often work best.
Step 1: Refresh and Wait (The 24-Hour Rule)
In many cases, if the error occurred during a transfer, the server needs to “time out.” Waiting a short time (3–5 minutes) often works. If a Pokémon is “stuck,” waiting 24 hours without attempting a transfer usually allows the server to auto-reset the flag and resolve the transfer failed Pokemon Home issue.
Step 2: Accept Terms on the Nintendo Switch
This is the “Golden Fix” for the Pokémon HOME error 9007 fix.
- Open Pokémon HOME on your Nintendo Switch.
- Look for any new legal prompts or Terms of Service updates.
- Accept them and save.
- Fully close the mobile app and try logging in again.
Step 3: Clear App Cache (The Title Screen Menu)
If the error appears immediately, clearing your cache eliminates corrupted session data that causes the 9007 server issue Pokemon HOME.
- On the mobile title screen, tap the Menu (three lines) in the top right.
- Select “Clear Cache”. This will not delete your Pokémon; it only clears temporary login files and search data.
Step 4: Uninstall and Reinstall (Clean Slate)
If clearing the cache fails, you need a full reset to fix 9007 when transferring Pokemon.
- Android: Go to Settings > Apps > Storage > Clear Data, then Uninstall. Download again from the Google Play Store.
- iOS: Delete the app entirely and reinstall from the App Store.
- Mac (Apple Silicon): To completely how to fix error 9007 Pokemon Home on a Mac, you must manually delete folders in
~/Library/Application Support/,~/Library/Caches/, and~/Library/Containers/named “Pokemon Home” to remove “ghost” files. - Reinstall and try logging in manually (avoid biometrics/auto-fill for the first link).
Step 5: Sync/Logout of Linked Apps (Pokémon GO)
Sometimes another linked session is “locking” your account. Try logging out of Pokémon GO or the Nintendo Switch Online app on the same device before attempting the HOME login. This helps resolve error code 9007 Pokemon Home transfer conflicts.
Step 6: Check Network and VPN Settings
VPNs can route traffic through flagged IPs or slow down the response time, causing a Pokemon HOME transfer error. Temporarily disable your VPN or switch from Wi-Fi to a mobile hotspot (5G) to ensure a stable, direct connection to the Pokémon servers.
Is Pokémon HOME Down Right Now? How to Tell
Pokémon HOME can experience partial service issues where some features (like the GTS) fail while others remain accessible. Check the official @PokemonHOME social media accounts or the official Nintendo Network Status Page.
Strong signs of a wider issue include:
- The error appears for every user on Reddit/social media.
- None of the fixes work across both Switch and mobile.
- The issue started suddenly during a new game launch (like Pokémon Champions).
Why the Status Page May Still Look Normal
Status indicators typically track core systems, not individual features. They may not reflect:
- Regional access issues specific to your location.
- Authentication failures affecting only specific login types (like Google vs. Nintendo ID).
- Transfer-specific bugs related to 2026 title compatibility.
How to Prevent This Error in the Future
To keep your connection stable and prevent Pokemon loss Pokemon HOME transfers:
- Avoid Password Changes During Active Transfers: Log out of HOME before updating your [suspicious link removed].
- Single Sessions: Do not have HOME open on your Switch and Phone simultaneously while performing sensitive transfers.
- Browser Hygiene: Clear your mobile browser cookies and cache regularly to ensure the “link” process doesn’t fail.
- Keep Apps Synced: Always update both the Switch and Mobile versions of the app at the same time to avoid version mismatches.
- Avoid Public Wi-Fi: Use a secure, private connection to avoid the Home server connection error.
FAQ
Why does Pokémon HOME keep saying “try again later”?
Because the server could not process the request at that moment, usually due to an authentication mismatch or a temporary “lock” on your account data.
Is my Pokémon lost after error 9007?
No. Your Pokémon data is stored on cloud servers. Even if the app crashes, your collection is safe once the connection is restored. This is a common question: is my Pokemon lost after error 9007? The answer is a firm no.
What is the “Vinculate” issue?
This is a translation for “Link Account” often seen in Spanish settings. If you see this error, it means your browser failed to hand off your login data to the app correctly.
Is error 9007 a ban?
No. Ban codes for “illegal” or “genned” Pokémon are usually 10015 or 10016. Error 9007 is strictly a technical communication issue.
How long does this error usually last?
Minutes if it’s a cache issue; up to 24 hours if it’s a server-side transfer “lock.”
How do I contact Nintendo about Pokemon Home errors? You can visit the official Pokémon Support portal and submit a ticket. Always include your Support ID and the specific time you saw the Pokemon Home error 9007.
What to Do If Nothing Works
If you have followed every step in this Pokemon HOME troubleshooting guide 9007 and the error still appears, the best option is to stop retrying and wait.
Repeated attempts during a server-side issue can sometimes trigger further rate limits. We recommend you come back later once conditions stabilize. If the issue persists for over 48 hours, contact Pokémon Support through their official portal. Be sure to provide your Support ID and a screenshot of the Error 400/9007 message to speed up the process.
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