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An old LINE group may suddenly matter again when you need the hotel name, a shared route photo or the details of a past plan. The group is back on your Galaxy S23 Ultra, but its earlier messages are gone. If you need to recover deleted LINE messages on Samsung Galaxy S23 Ultra without a backup, Dr.Fone - Data Recovery (Android) offers a way to look for available local conversation records and attachments rather than wait for the group history to reappear.
The first useful question is whether the chat was hidden or deleted. Once that is clear, a focused scan and separate message/media previews can help you identify the old information worth saving. This guide also explains why a new group message or a linked computer is not automatically a copy of the deleted history.
In this article
Before you start
Check the listed S23 Ultra configuration
The Samsung Galaxy S23 Ultra support entry lists kernel 5.15.189; no Android-version restriction is listed for this model. Check the phone identity under Settings > About phone and software details under Software information, retaining the kernel condition. Do not borrow the conditions of a base S23 or another Ultra model.
Keep the old phone's LINE data intact
Keep LINE installed on the S23 Ultra and avoid clearing app storage, uninstalling or factory-resetting it while looking for local records. Do not change firmware or use a generic Root or bootloader-unlock procedure to try to recover a chat. Prepare a Windows PC and reliable USB data cable, then follow Dr.Fone's displayed device-access instructions.
Use a no-backup scan for a no-backup problem
Advanced Recovery is Windows-only and saves selected available results to PC, not into LINE. LINE's built-in restoration needs an applicable earlier backup. Standard Backup contains text history rather than chat media; a post-deletion backup cannot recreate the old exchange, and Premium Backup is not a deletion rollback. You do not need an earlier backup for the device-scan route below.
Find out whether the old LINE group was hidden or deleted
The group has disappeared or returned with only recent messages, and you want to avoid mistaking a visible chat name for recovered history.
Step 1 Check the hidden-chat list
Open LINE > Home > Settings > Chats > Hidden chats. If the group is listed, tap Edit > Unhide chat. Then inspect the older part of the conversation for the missing exchange.
Step 2 Interpret what the reopened group shows
If old messages are visible after unhiding, the history was retained. If the group returned after a new message but only that newer discussion appears, its earlier history has not been restored. Continue to the scan if the information you need was actually deleted.
- LINE distinguishes Hide, which preserves the history, from Delete, which removes the previous history.
- According to LINE's current help, deleting a chat affects all devices using the account. Do not assume a linked PC is an untouched backup of a chat deleted on the phone.
Look for an old plan posted to the group's Notes
The group remains accessible and someone may have placed the itinerary, location or photo in Notes before the history was lost.
Step 1 Open the retained Notes board
In the accessible group chat, tap the menu at the top > Notes. This displays existing shared posts rather than deleted conversation messages.
Step 2 Search for a place or distinctive phrase
Enter a destination, booking term or other relevant text in the Notes search box. Read any matching post to see whether it supplies the missing detail. If it does not, use that phrase to guide your review of available scan results.
- A useful old Note can solve the immediate information gap without recovering the chat. It is not evidence that the full earlier discussion still exists.
What a returning LINE chat does and does not mean
| What you see | Likely interpretation | Next useful action |
|---|---|---|
| The group is in Hidden chats with its old messages | The conversation was hidden, not deleted. | Unhide it and read the retained history. |
| The group reappears with only new messages | The old history has not returned just because the chat is visible. | Look for available deleted records with the device scan. |
| An old plan is still in Notes or an accessible album | A separately retained post or media copy remains. | Keep the useful content; scan if you still need missing messages or files. |
| Only part of an old exchange appears in Dr.Fone | The scan found those records, not necessarily every message from the period. | Select the useful text and inspect LINE Attachments separately. |
Common problems and fixes
The group is back, but scrolling does not reveal the deleted period
A new message can make a deleted chat reappear without restoring its previous history. Do not delete and recreate the conversation again. Use the available LINE scan results to look for the specific earlier information.
The scan shows old text but not the route photo or video
Open LINE Attachments rather than relying on the conversation preview alone. Inspect the media and file results that are actually available. A surviving text reference to a photo does not establish that its original file remains recoverable.
The conversation was deleted a long time ago
There is no supported fixed day limit or success percentage in these device records. Review what the scan finds and save useful results even if the full period is absent. If another participant still holds the exact message or file, a copy they choose to share is a separate way to obtain that information.
The phone is detected, but the app-data scan is unavailable
Use Windows and check the S23 Ultra's listed kernel 5.15.189 condition. Read the product's compatibility message and take that message to Dr.Fone support if scanning is blocked. Do not attempt to satisfy it by flashing firmware.
How to use Dr.Fone - Data Recovery (Android)
Dr.Fone - Data Recovery (Android) helps you search for the old LINE information that a newly visible group cannot supply. Its Windows-only Advanced Recovery mode scans supported Galaxy S23 Ultra app data without a prior backup, lets you review available conversations separately from LINE Attachments and saves the items you choose to your PC. You can concentrate on a useful place name, discussion or shared file instead of needing every part of the old history to return.
- LINE conversation previews help you evaluate the actual old text found rather than relying on the group's name.
- The LINE Attachments category provides a separate place to inspect found photos, videos and other shared files.
- Selective PC recovery makes a useful partial result worth keeping even when a complete conversation is not available.
Scan Android phones and tablets directly.- Preview and recover only what you want.
- Supports WhatsApp, photos, videos, contacts, and more.
- Works with 6000+ Android devices.
Follow the official Advanced Recovery workflow
Step 1 Connect the S23 Ultra through Advanced Recovery
Launch Dr.Fone on Windows, open Toolbox > Data Recovery and choose Android > Recover Android Data. Select Advanced Recovery and click Start Scan. Connect the Galaxy S23 Ultra by USB when asked, then complete the displayed instructions until the device is detected.
Step 2 Choose LINE for the app-data scan
Select LINE from the available data categories and click Start Scan. This scans the connected phone for app data; it does not restore the group from a cloud backup.
Step 3 Allow scanning to finish
Keep the phone connected throughout the scan. If you have to stop, click Cancel before disconnecting. Follow any displayed restart instructions if the phone becomes temporarily unresponsive after the scan or recovery.
Step 4 Look for the earlier exchange and shared files
Open LINE in the results sidebar and inspect available conversations for the old group and the information you need. Use search and filters where available. Then open LINE Attachments to review found photos, videos and files, selecting useful records in each view.
Step 5 Recover the selected history to your PC
Click Recover and choose a computer folder as prompted. Save the selected results and check the output for the old messages and usable attachments. The output remains a PC copy and is not merged into the current LINE group on the phone.
Conclusion
A returning group name is not the same as getting an important old discussion back. Dr.Fone - Data Recovery (Android) gives supported Samsung Galaxy S23 Ultra users a practical next step: search available LINE history, inspect shared media and save the useful records to PC. Download Dr.Fone for Windows and start the guided scan to look for the messages, photos and files you still need.
FAQ
1. Can I recover deleted LINE messages on Samsung Galaxy S23 Ultra without a backup?
Dr.Fone - Data Recovery (Android) provides a Windows device-scan route for supported S23 Ultra configurations. Scan LINE with Advanced Recovery, preview found conversations and LINE Attachments, then save selected available results to PC. This route does not need an existing LINE backup.2. Why did my LINE group return without its old messages?
LINE says a hidden or deleted chat can reappear when a new message arrives. Hidden history is retained, but a deleted chat returns with new messages rather than its deleted previous history. Seeing the group again is not proof of restoration.3. Can my linked LINE PC app restore what I deleted on the phone?
Do not assume it can. LINE's current hiding/deleting help says deleting a chat deletes it on all devices using the account. A document you separately saved on a computer is a retained file, not a way to restore deleted LINE chat history.4. Can Dr.Fone recover LINE photos, videos and files from an old chat?
Review the LINE Attachments results after scanning. You can select usable found media and files independently of the available conversation text. Neither the age of the chat nor a reference to an attachment guarantees that its full original file remains.5. Is Premium Backup a way to roll back the old group deletion?
No. LINE says Premium Backup cannot restore a manually deleted chat. Standard Backup must have been made before deletion to provide that earlier text history. Neither should be presented as a solution that needs no prior backup.
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