Why I can't see all images in the gallery? My Phone is SYMPHONY Xplorer W35. Android version JellyBean 4.1.1 Recently I'm facing a problem. Sometimes I download images from my PC to my mobile phone. But unfortunately these images are not in the gallery apps. For this when I need to upload an image from messenger I can't upload them because they are not in the gallery. But after few times the images are automatically shown in the gallery. (My messenger doesn't support uploading file from file manager)
This very much depends on how you upload the images to the device. In order for the gallery app to pick them up, they must be added to the "media library", which is the job of the media-scanner. So that one needs to run after you've uploaded the image(s).

There are quite a few events triggering the media scanner to do its job – but e.g. uploading a file via FTP, or copying it with a file manager do not belong to that category. Things you can do to trigger it include:


rebooting the device (media-scanner always runs at BOOT_COMPLETED)
unmount and mount your SD card (it also runs whenever a new medium is attached)
trigger a media scan via the the command line
use a media scanner trigger app to trigger a scan manually


Pick your choice depending on how often you need to do that. If it happens once a year, a reboot probably is the easiest approach. If you need it daily, one of those apps will be the better solution ;)