Anyway, my phone is rooted with z4root, and I'm trying to do this by two different methods. [Correction: It would be better to say that I've tried this using two different programs] I've tried using "adb shell," and I've tried using "Android Terminal Emulator". I can successfully use su in both of them (but if I can't rewrite anything, then I don't see what the difference is). Then I go to the directory on my sd card where the cell ring is and I type
cp cell\ ring.mp3 /system/media/audio/ringtones/And it replies
cp: /system/media/audio/ringtones/cell ring.mp3: Read-only file systemSo, I found these instructions that say to use "mount -o rw,remount -t yaffs2 /dev/block/mtdblock3" (though I think it needs to be "mtdblock7" for mine) or "mount -o rw,remount -t rootfs /" But when I do either of those, it returns
Usage: mount [-r] [-w] [-o options] [-t type] device directoryWhich I take to mean that the "mount" command isn't being used correctly (and my experience with the mount command on desktop bash is limited, so I don't have any clue how to correct it).
It's worth noting that I have the exact same results in both adb shell and Android Terminal Emulator.
So, I found another thread (I think one on XDA) that said that I need to be in recovery mode to write to /system, which kind of makes sense. But I have no clue how to do that. And Google is not helping. The only instructions I could find said to turn the phone off and hold down the camera and volume up button. Which did nothing. And it's a good thing nobody was watching because I'm sure I looked like an idiot.
So... I guess I'll have to ask, how do I get into recovery mode? But at this point, I keep coming across so many absurd things keeping me from this that I wouldn't be surprised if next I get an error.
Therefore, my question is this: Is there a way to get into recovery mode, or, alternatively, is there a way to keep my ringtone working even while my sd card is connected to my computer?