Probably Android phones are the most common devices to take photos with nowadays often stored on a Micro SD Card. Consequentially many lost photos will be on Android devices. Photos can be on: Internal memory (Micro) SD Card Although many want you to believe it is easy to recover the lost or deleted photos and… Read More »
When you discover photos on your SD card are corrupt or the memory card itself is corrupt you should: Do as little as possible (read: nothing) with the card. Do NOT run chkdsk on the card itself! Do not format the card even if it asks you to! Instead: Create a disk image of the… Read More »
Unfortunately it is a common problem that you are unable to open recovered photos after using file recovery, undelete or photo recovery software on a SD card. In this post I will make some assumptions: Photos are on a memory card and therefor: File system is a variation of FAT (FAT32, exFAT) File type is… Read More »
JPEG visual corruption In general there are two kinds of symptoms that indicate a JPEG image is corrupted: Photo can not be viewed at all; Windows Explorer fails to display thumbnails JPEG can be opened but there is visual corruption in one form or the other In case 1 it is safe to assume at… Read More »
Recovered photos are corrupt and won’t open after you tried to recover them using undelete, file recovery of photo recovery software? Here’s a few things to try. There are a huge number of JPEG recovery and undelete programs available on the web, many even for free. However, the vast majority of these can only handle… Read More »
There’s basically three things that can be wrong if a JPEG opens but is partially grey:
1. File is too small. Let’s an average JPEG shot with same camera and settings is 4 MB and the ones that are damaged are like 1 MB or 2 MB. Then probably half the data is simply missing. These files can not be repaired.
2. Normal file size. Either part of the file does not contain image data or file does contain image data but is interrupted by some invalid data.
If part of the file does not contain image data then this is sometimes easy to spot using a hex editor. All of a sudden ‘random’ binary data stops and changes to FF FF FF or 00 00 00 etc.. Repair: Impossible.
In case the data is however is there but it is interrupted repair is often possible. JPG-Repair tries to detect and will try to get rid of the invalid data, however this does not always work. Current version detects invalid JPEG markers, common damage due to bad sectors and some type of corruption I observed a few times with images shot with certain Samsung phones.
Not all corrupt JPEGs can be repaired. In fact, a large number of damaged JPEG files I receive on a daily basis can not. So I spend a fair amount of time on files that I nor anyone else can repair. About 90% of these non repairable files suffer from one of the following issues:… Read More »
Windows Photo Viewer: File appears to be damaged, corrupted or is too large The first thing you need to check is if other photo viewers can actually open the file. For example try Windows Photos or a third party photo viewer. If those fail to open the photo as well, the file may be corrupt. If… Read More »
Can corrupt Canon CR2 RAW photos be repaired? Edit 2nd of March, 2019: After having successfully repaired a number of corrupted CR2 (Canon RAW files) rather than having JPEGs extracted, I now accept CR2 files for my photo repair service. Unfortunately I know of no software that can successfully repair corrupt Canon CR2 RAW Canon… Read More »