Google Photos Stuck on Preparing Backup? What to Check (2026)

You open Google Photos expecting a tidy Backup complete and see Preparing backup, the same message you saw an hour ago. It's unsettling if your phone is full of work photos and you're counting on the cloud copy.

Google's help pages describe this status and a handful of causes. They don't give one dedicated fix for a message that never moves, so I've kept to what they do say and flagged where the help runs out. Menus differ a little between iPhone, iPad and Android.

What the Preparing backup message means in Google Photos

Google lists the backup status messages you can see. To find them, open Google Photos, then touch and hold at the top and drag down. You'll see one of these:

• Backup complete: nothing is waiting to back up.
• Backup is off: Backup is turned off, so tap Turn on backup.
• Backing up: items are uploading, with the number remaining shown.
• Preparing backup or Getting ready to back up: your photos and videos are getting ready to back up.
• Waiting for connection or Waiting for Wi-Fi: change your settings or connect to a network.

So Preparing backup isn't an error message in Google's wording. It's a stage. The question is why it lasts so long, and that's usually about the connection, the number or size of items, or the app being closed.

Keeping the app open and the phone plugged in while it prepares

Google's backup article warns that it can take a while to complete a backup, depending on your internet connection, the size of your uploads and other conditions. Its advice is to keep the Photos app open and your phone plugged in for best results.

On iPhone and iPad it adds a specific tip: don't quit the Google Photos app while it's backing up items. If you swipe it away to tidy your screen, you may be interrupting the job. Leave it open on screen with the phone charging, connected to Wi-Fi, and give it time. Google also says items are backed up from most recent to oldest, so the newest photos go first.

Checking the Google Photos backup account and settings

A mismatch is an easy thing to miss. Open Google Photos, tap your profile picture or initial, tap Google Photos settings, then Backup. Google tells you to check that the backup account listed matches the one you're signed in to in the app.

The same screen lets you check backup quality and whether mobile data may be used instead of only Wi-Fi. If you back up only over Wi-Fi and you're on a weak network, the message won't move.

Looking for files that may be too big for Google Photos

Google says a photo or video may not upload because it doesn't meet the requirements. Photos can't exceed 200 MB or 200 megapixels, and videos can't exceed 10 GB. Items must also be larger than 256 x 256, and file types must be supported.

Google adds that if a photo or video won't back up, it might not be in a supported format, and that Google Photos will try again to back up items that didn't make it. A single huge video near the front of the queue is a good suspect, so check what you've recently recorded.

Finding which photo isn't backed up

1. Open Google Photos and look at the thumbnails shown as the backup progresses at the top.
2. Select a photo you're unsure about.
3. If it isn't backed up, you'll see a Back up button at the top.
4. Tap it to back up that photo.

Google also says you can go to photos.google.com on a computer. Every photo and video you find there has been backed up, so it's a quick way to see what is safe and what isn't.

Checking your Google Account storage when backup stays on Preparing

Google's backup article says your Google Account storage is shared across Google Photos, Google Drive and Gmail. If you've used all of it, you can clean up your storage space. Large attachments in Gmail or files in Drive might be what's filling it, so it's worth a look. If you work from shared documents, my guide to recovering deleted files from Google Drive covers what happens when you tidy up there.

Restarting the Google Photos app and updating it

Google's backup help doesn't list a restart as a fix, so I won't claim it as an official step. It's a sensible general thing to try, though: close the app fully, update Google Photos from your app store, reopen it and check the status again. Just remember that on iPhone Google's advice is to leave the app open while it backs up, so reopen it and then leave it be.

Using Google Photos on the web while backup is stuck

If an important photo needs to be safe now, upload it from a computer. Google has a help article on adding photos to your library from the web. It's slower than automatic backup, but it works when the phone side is stuck.

While a backup finishes, it's a nice moment to look back: my guide to seeing your Memories on Facebook shows another way to revisit older photos, and it doesn't touch your Google Photos queue.

When to ask Google for help with a stuck backup

If the status still says Preparing backup after you've checked the account, the connection, file sizes and storage, and left the app open on charge for a good while, Google's route is the feedback option in Google Photos. Describe the status message, your device type and what you tried. Keep the original photos on your phone until the backup completes.

Frequently asked questions

What does Preparing backup mean in Google Photos?

Google says Preparing backup or Getting ready to back up means your photos and videos are getting ready to back up.

How do I see the Google Photos backup status?

Open the app, then touch and hold at the top and drag down. Messages include Backup complete, Backing up, Preparing backup and Waiting for Wi-Fi.

Should I close Google Photos while it backs up on iPhone?

No. Google says not to quit the Google Photos app while it's backing up items on an iPhone or iPad.

Which files may never back up?

Google says photos can't exceed 200 MB or 200 megapixels and videos can't exceed 10 GB. Unsupported formats may not back up either.

Is my backup account correct?

Open Google Photos settings, then Backup, and check the backup account matches the account you're signed in to in the app.