The internal memory of the HTC cha cha is always very low, making it a problem. I have already transferred all apps that can be transferred to the SD card. But some of the pre-installed apps like facebook, peeps, etc cannot be transferred to the SD, is there anyway to solve this problem??

SOURCE: wont save to memory card

try to save in momery card

SOURCE: htc phone saying memory full.

Make sure your sd card is not corrupt. It should auto save to your sd card. You will probably want a card that is at least 2gb. Go into settings, sd card and phone storage, and make sure unmount sd card is brightest. This means that your card is in and recognized. At the bottom of that screen, you should see internal phone storage, here it will tell you how much memory is free outside of the sd card. You will want this to have at least 100mb free so that the phone can operate at is smoothest.

SOURCE: How do I transfer pictures from phone's internal memory to SD card

you can contact the service provider.........

SOURCE: I have an HTC Desire

Go to settings to applications to manage applications tap application tap move to SD card

SOURCE: HTC S low internal memory

hard reset the device but before make backup your full data for hard reset first switch off your device then press volume down+power on hold up to show three android images, then press volume down to select clean storage and then press power on to select it, then press power up to start factory reset.