[Captivate Q&A, Help & Troubleshooting] klef25:
I'm starting a new thread on my exploits with my Captivate as I've been trying to get it to work well since updating to the official Samsung Froyo release when it came out (actually since getting the phone last fall). Any tips to get me past the problems that I'm having would be appreciated. I've tried searching the forums and googling the problems I've had, but this has been tedious to say the least, and really hasn't gotten me any further.

When I originally got my Captivate, I tried connecting it to Samsung Kies and I was never able to get Kies to actually recognize the phone and let me use it to move media about and such, so I gave that up. When the Froyo update was released, I installed it per the instructions and kept hitting a dead end until I uninstalled IE9 (I think it was the RC at the time). Then I was able to update my phone, but the update failed and I had to use some sort of recovery console within the Kies update (I'm sorry I don't remember the exact details). This updated my phone to Froyo, at least according to the Settings:About Phone (Firmware version 2.2 Build number FROYO.UCKB1). However, since then the phone has actually seemed slower than before the update and I thought the new JIT was supposed to make it faster. It often freezes on me requiring me to remove the battery to restart it. Also, the data connection will fail at times (the "3G" icon disappears or only shows uploading data despite having 5 bars) and when I reboot the phone I will have voicemail waiting despite having no missed calls. Anyway, I decided I've had enough of this and I wanted to root the phone and install Cyanogenmod. (I'd been thinking of this anyway.)

I tried using the 1-click root as described http://xdaforums.com/showthread.php?t=739304. This failed as when I clicked on "reinstall packages", it says "E:signature verification failed Installation aborted."

I searched around for this and found information on getting an unsigned update.zip which was supposed to prevent this error. (http://xdaforums.com/showthread.php?t=909213) However, I was not able to follow the mount instructions through the terminal emulator as I got this error for that command: "mount: Operation not permitted". My prompt is $ and I'm told it is supposed to be #. I found instructions that this is supposed to change by typing su for superuser, however when I do that it says, "su: not found".

I then found this thread: http://xdaforums.com/showthread.php?p=8985854 which I have been trying to follow the step-by-step to root Captivate posted by clawsthatscratch. (I have an AT&T Captivate and they seem to be referring to Rogers Captivate, but I thought it should work anyway.) These instructions say to open a command prompt from the tools directory, but it seems that you actually have to open from platform-tools instead as the ADB had changed locations. I went through this step-by-step to the command "./rageagainstthecage-arm5.bin" This did not "kick my out of adb" the first time that I did it, but I've done it again now while typing this post and it seems to be going further and I'm actually seeing a # prompt instead of just the $ prompt.

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OK. I think I may have root access. Everything worked up until the "no startup sounds" and "remove bloat" steps. When I try to run these commands, I get a "Read-only file system" error. I'm going to try to install Cyanogen. I'll repost when I see how that goes. Please (oh please, oh please) give me whatever help you can as to why I'm having so many problems running the simpler methods and even the step-by-step method.