Here we have tried to put together a collection of stock firmware, kernels (both stock and custom) and modems for various devices. We have by far the largest and most comprehensive collection of resources for the Sprint Samsung S2 (Epic 4G Touch or SPH-D710). I've recently began to branch out into other devices and hope to be the one-stop resource for all Sprint Samsung devices.
Before you proceed - I am not the developer or creator of the majority of these resources. I cannot and will not be held responsible for any issues that arise from using the resources on this site. They are provided as-is with no expressed guarantee.
I strongly encourage you to do the following before continuing:
1) Verify the make and model of your device. There are several devices that are very similar in look and name but the software is vastly different. Using the wrong resources can and often will brick your device (to brick is to make the device inoperable).
2) Read as much as you can before ever doing anything that would potentially void your warranty (as most of the resources on this site will do).
3) Make a backup! Backups are your very best friend and can often save you from issues that arise from incorrectly using these resources.
If there is something specific you would like to see but don't please feel free to contact us. We will do our best to accommodate your request.
Enjoy your stay!