Recover deleted photos with DiskDigger on Android
Even after a file has been removed from the cloud trash and the gallery trash, there's still one layer where it can reside: the device's raw memory.
How does a scan work?
That's where scanning apps work, and that's why they find photos that the system already considers lost.
The application reads the memory sector by sector, searching for file signatures. Every JPEG photo, for example, begins and ends with a specific sequence of bytes. Even without the index that pointed to it, the program recognizes this pattern and reconstructs the image.
That's why scanning sometimes brings back old photos you didn't even remember, mixed with thumbnail images of conversations and music covers. Everything that has ever been in that space can reappear.
Prepare your phone before you begin
Activate airplane mode
Incoming messages, apps syncing, and updates downloading all write new data to memory. Any one of these can occupy the very space where your photo is stored. Airplane mode freezes this movement.
Do not install anything beyond what is necessary
Each installation writes to the internal memory. If the lost photo was on the card, it's best to scan the card, as it won't be affected by this.
Keep the battery above 50%
A complete scan can take more than an hour. If the device shuts down mid-process, the process starts over from scratch.
Basic search or full search?
The basic search works without root access, finishes in a few minutes, and mainly finds thumbnails: reduced versions that the system kept in cache. It's useful for checking if the photo still exists, but the quality is usually disappointing.
A full scan requires root access on most devices and reads the entire memory. This is what returns the file in its original resolution. If the photo is important and you don't have root access, it's worth considering scanning via computer.
After recovering
Save the images off the device: to the cloud, to another memory card, or to your computer. Saving them back to the same memory card may overwrite other photos that were still recoverable and that you might want later.
1. DiskDigger
Scans internal memory and memory card for deleted photos and videos. The basic scan is quick and doesn't require root access; the full scan takes longer and recovers the file in its original resolution.
It allows you to filter by file type and minimum size, which helps to separate the actual photos from the cache thumbnails that appear alongside them.
2. Dumpster
After recovering, it prevents history from repeating itself. It creates a permanent trash bin on Android where everything that is deleted is saved, ready to be restored with a tap.
You can set how long each file stays in the recycle bin and limit the space it occupies, so it doesn't weigh down your storage.
3. Gallery
It organizes the recovered images into albums by date and location, making it easier to separate the useful ones from those that came along in the scan.
It also allows you to password-protect folders, which is useful for photos you absolutely don't want to lose.
Frequently Asked Questions
How long does the scan take?
The basic one takes a few minutes. The full one can take over an hour on large memory cards.
Will the photos be restored to their original quality?
Yes, in a full scan. In a basic scan, they usually return lower resolution results because they come from the cache.
Does it work with a memory card?
It works, and it usually gives better results on the card than on the internal memory.
Do I need root access?
For a full root search, yes, on most devices. The basic search works without root access.
Photos that aren't mine have appeared. Why?
These are remnants of images that passed through the device: music covers, stickers, and conversation thumbnails.
