Backups keep your sales, menu and employees so you do not lose them if the tablet breaks, is lost or you replace it. They are in Settings > Backups.
Payment link and QR keys are not in the backup
If you restore on another tablet, you will have to type the keys of the link/QR payment providers again (see Payment links and QR).
Daily backup to Google Drive
It is an automatic backup to your Google Drive, in a private app folder that nobody else sees. 30 days are kept.
- Go to Settings > Backups.
- Tap Connect Google Drive and choose your Google account. You will see “Google account: (name)”.
- Turn on Automatic daily copy (around 3:00 am).
Things to know:
- Without connecting Google Drive there is no automatic backup.
- The time is the tablet’s clock time. The backup runs with the tablet connected to the internet and the battery not low.
- If the tablet was off or offline and the last good backup is more than 26 hours old, the app asks for a recovery backup.
- If you use several tablets, only one uploads the backup, to avoid duplicates: the register with the lowest receipt prefix seen in the last 3 days. The screen tells you “This device makes the location’s daily backup…” or “The location’s daily backup is made by: X.”
- If Google revokes access, you will see “Google Drive needs to be reconnected” and “Backup stopped”, with a Reconnect button.
- To stop using Drive, tap Disconnect Google Drive.
Make a backup now
Tap Back up now on any tablet. The screen shows “Last successful copy: (name)”, or “There is no copy yet.” If it failed, you will see “The copy of (name) failed: (name)”.
Export to a file
If the tablet does not have Google Play Services (so it cannot use Google Drive), or you simply prefer to keep the backup yourself:
- In Backups tap Export a copy to a file.
- Choose where to save it. A
.zipfile is created and the app says “Copy saved to the file.” - Keep that file somewhere safe, off the tablet.
What the backup includes and what it does not
| Includes | Does not include |
|---|---|
| The whole database (sales, menu, employees, customers, settings) | App preferences |
| Product photos | The Google account |
| The logo | The link with food.yammbo.com |
| An index with the business name, the date, the device and a signature for each file | The keys of the link/QR payment providers |
Also, the backup does not clone the tablet’s identity: a restored tablet does not impersonate the original.
How much is kept
- Backups older than 30 days are deleted, but the 3 most recent are always kept.
- Maximum size: 1100 MB for the full backup and 512 MB for the database. Product photos are up to 4 MB each.
Restore a backup
Restoring replaces all the tablet’s data with the backup’s. The app keeps the previous data until it confirms the new backup started correctly.
- On a new tablet, on “What is this tablet for?” choose Restore a backup. On an already installed tablet, go to Settings > Backups.
- Pick the backup with See copies in Google Drive or Restore from a file, and tap Restore.
- You will see Restore this copy with the backup’s date, business and device, and the warning that the current data is erased and replaced. The app restarts.
- Enter the Owner’s PIN and type the word RESTAURAR (“Type RESTAURAR to confirm”). On a fresh install with no employees the PIN is not asked.
- If the tablet has no sales, the app asks about its identity:
- “Replace the device of the backup (same number and receipts)”: use it if the original tablet is no longer in use.
- “Use a new number (receipts start again under a new prefix)”: use it if the original device is still working. If the tablet already has sales, it keeps its own identity.
- Tap Restore and restart. You will see “Restoring… the app is restarting.”
When it finishes:
- “The copy was restored. If something looks wrong, reopen the app.”
- If the new backup does not start properly, the app goes back to the previous data: “The restored copy did not start correctly and the previous data was put back.”
- “The restore could not be applied. Your current data was not touched.”
After restoring, the tablet is no longer joined to the location (if there were several tablets, it must be joined again) and has no Google account, so you will have to reconnect Google Drive.
When you cannot restore
- If the tablet is joined to others in the location: “This device is linked to others in the business. To restore, remove it from the business first (or restore on a new device) and join it again afterwards.”
- If the tablet was removed from the location: “This device was removed from the business and cannot restore. Use Erase data first; then you can restore as on a new device.”
- If the backup is from a newer app version: “The backup comes from a newer version of the app. Update the app.” An older backup is accepted.
Backup errors
| Message | What to do |
|---|---|
| ”The file is not a Yammbo Food POS backup.” | You picked another kind of file. Find the right .zip. |
| ”The backup is damaged or was modified (checksum mismatch).” and other “The backup is damaged…” messages | The file was altered or downloaded badly. Use another backup. |
| ”The backup is missing files.”, “The backup has no database.”, “The backup is too big.” | The file is incomplete or not valid. Use another backup. |
| ”This device has no Google Play services, so it cannot use Google Drive. Use the copy to a file.” | Use Export a copy to a file. |
| ”Google Drive is not set up for this version of the app yet.” | This app version cannot use Google Drive yet. Use the backup to a file and write to support. |
| ”Google Drive is not connected.”, “Google Drive needs to be reconnected” or “Google did not authorize access. Try again.” | Connect or reconnect Google Drive. |
| ”No internet connection. It will be retried later.” | It retries by itself. |
| ”Your Google Drive is full. Free some space and try again.” | Free space in Drive. The previous backup is still available. |
| ”Google asks to wait a moment. It will be retried.” or “Google Drive did not answer properly. It will be retried.” | Temporary. The app retries up to 3 times. |
| ”The copy no longer exists in Google Drive.” | It was deleted from Drive. Pick another one. |
| ”There is no space left on this device.” | Free up space on the tablet. |
| ”The file could not be read or written.” | Try again. |
| ”A backup is already running. Wait for it to finish.” | Only one backup runs at a time. |
| ”A restore is pending. Restart the app to finish it.” | Close and reopen the app. |
| ”That PIN is not an owner’s, or the keypad is locked for a few seconds.” | Use an owner’s PIN or wait a few seconds. |
| ”The confirmation word is missing.” | Type RESTAURAR. |
If Google Drive does not work on your device
Use Export a copy to a file as an alternative and keep the file somewhere other than the tablet. If the problem continues, write to us at support@yammbo.com.