Awhile back, before the Rockbox build was even stable, I decided to put Rockbox firmware on my Sansa Fuze V2. I knew there was a risk of bricking at the time, as only v1 was actually stable, but I still went for it. The customization and games were nice at first, but a few months ago, it started having more and more problems. I looked for a stable build, and sure enough, there was a stable build. This was about two months ago. Installed it with the Rockbox installer, moved on.
I found that it didn't actually solve any of the issues I was having though. There were an incredible amount of interface issues that made me realize that stable just means that it won't brick your device.
Tonight, I went ahead and decided to uninstall it. Apparently, this isn't a simple endeavor. I choose the install that removes everything except the bootloader, and then only a normal firmware update would be needed to remedy that. I take all the necessary steps, do a normal firmware update, and it still tried to boot into the Rockbox firmware. Only difference was, it said there was no firmware there, and shut off about 6 seconds later. I boot back into the normal firmware through USB connection (thankfully USB support hadn't been added yet for Rockbox of this variety). I try removing any music I didn't already have back ups of (music from friends) and find some of it is corrupted for one reason or another and the extra Rockbox files won't delete.
I get music off of it, then format through the original firmware. It STILL tried to boot into Rockbox. I went ahead and looked to see if maybe I needed to update the firmware again, and there was a 21MB update file. I updated it once, and got a warning that there wasn't enough room (over 7GB isn't enough room for 21MB....wut?). I update again, and am successful. Now, it finally boots into the normal firmware again, where I now need to carefully watch the battery while I still have warranty. All traces of Rockbox are gone, so I shouldn't have any issues getting a repair if I need it, though they may see the water indicator is a color indicating that the device got wet and consider otherwise (even though that was about five months ago).
tl;dr - If you get Rockbox, make sure it works really well on your device, and make sure you really want it.
I found that it didn't actually solve any of the issues I was having though. There were an incredible amount of interface issues that made me realize that stable just means that it won't brick your device.
Tonight, I went ahead and decided to uninstall it. Apparently, this isn't a simple endeavor. I choose the install that removes everything except the bootloader, and then only a normal firmware update would be needed to remedy that. I take all the necessary steps, do a normal firmware update, and it still tried to boot into the Rockbox firmware. Only difference was, it said there was no firmware there, and shut off about 6 seconds later. I boot back into the normal firmware through USB connection (thankfully USB support hadn't been added yet for Rockbox of this variety). I try removing any music I didn't already have back ups of (music from friends) and find some of it is corrupted for one reason or another and the extra Rockbox files won't delete.
I get music off of it, then format through the original firmware. It STILL tried to boot into Rockbox. I went ahead and looked to see if maybe I needed to update the firmware again, and there was a 21MB update file. I updated it once, and got a warning that there wasn't enough room (over 7GB isn't enough room for 21MB....wut?). I update again, and am successful. Now, it finally boots into the normal firmware again, where I now need to carefully watch the battery while I still have warranty. All traces of Rockbox are gone, so I shouldn't have any issues getting a repair if I need it, though they may see the water indicator is a color indicating that the device got wet and consider otherwise (even though that was about five months ago).
tl;dr - If you get Rockbox, make sure it works really well on your device, and make sure you really want it.