These will allow you to revert your device to COMPLETELY stock status (note: your device is wiped in the process).
To use these ROMs, extract the zip and copy the 'dload' folder to the root of your sdcard. Turn off your device, then turn on your device with the 'volume up' and 'end' (red) buttons held down.
U8110V100R001C85B214SP05 (T-Mobile) - DOWNLOAD (MediaFire Pro) - MD5: aee602ad278a6eca1f8ad839d5d5dfb2
U8110V100R001C21B217SP01 (Movistar) - DOWNLOAD (MediaFire Pro) - MD5: 0f49f0da1844dcf2a4e2d0ea44f8db10