[Q] problems modifying apks? - XPERIA X10 Q&A, Help & Troubleshooting

hey guys,
ive just started to learn how to modify apks and use adb.
my problem is that after i pull the file, i modify the icon i want to change, re-sign it and push it back to the phone. after i reinstall, the icons have not changed :S i re-pulled it, and the icons in the drawable_hdpi file are the one i wanted.
also, completely unrelated to that.... in adb when i try to run adb remount, it says permission denied, but im rooted and i even tried running the shell root beforehand aswell.
i ran a search and followed the various instructions from the different threads and forums but im just stuck at that point
thanks guys

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kylec said:
also, completely unrelated to that.... in adb when i try to run adb remount, it says permission denied, but im rooted and i even tried running the shell root beforehand aswell.
Click to expand...
Click to collapse
If you're getting permission denied how have you pushed it back?

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XperiaX10iUser said:
If you're getting permission denied how have you pushed it back?
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Click to collapse
i push it to the sdcard lol because it wont let me push to the system/app folder nor the data/app folder. i check my screen and a pop up appears saying that superuser granted access, so i have that.

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kylec said:
i push it to the sdcard lol because it wont let me push to the system/app folder nor the data/app folder.
Click to expand...
Click to collapse
Then it's no wonder your icons haven't changed if you haven't installed it to the phone.
Try, but keep your phones screen on whilst you try it...
adb shell (enter)
su (enter)
...allow super user access on phone...
mount -o remount,rw -t yaffs2 /dev/block/mtdblock2 /system

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XperiaX10iUser said:
Then it's no wonder your icons haven't changed if you haven't installed it to the phone.
Try, but keep your phones screen on whilst you try it...
adb shell (enter)
su (enter)
...allow super user access on phone...
mount -o remount,rw -t yaffs2 /dev/block/mtdblock2 /system
Click to expand...
Click to collapse
ok i just tried that. when i typed su, it echoed and on my phone it said "unknown has been grandted superuser permissions" so i didnt need to click allow or anything.
then i typed the mount -o remount,rw -t yaffs2 /dev/block/mtdblock2 /system and got mount: operation not permitted
any ideas?

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kylec said:
any ideas?
Click to expand...
Click to collapse
Try...
cd C:\android-sdk-windows\tools
adb shell
su
chmod 4755 /system/bin/sh
mount -o remount,rw -t yaffs2 /dev/block/mtdblock2 /system
...and report back.

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XperiaX10iUser said:
Try...
cd C:\android-sdk-windows\tools
adb shell
su
chmod 4755 /system/bin/sh
mount -o remount,rw -t yaffs2 /dev/block/mtdblock2 /system
...and report back.
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Click to collapse
yup that worked, i got an echo without errors
EDIT: ok after that i then tried to push the apk to the system/app and also the data/app folders, but i got a different error this time.
it said failed to copy .apk permission denied

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kylec said:
it said failed to copy .apk permission denied
Click to expand...
Click to collapse
Try, in a terminal on the phone...
su
chmod 4755 /system/bin/sh
I always struggle trying to get permissions after I've first rooted but can never remember the exact sequence, but do know it's a combination of what I've suggested.

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XperiaX10iUser said:
Try, in a terminal on the phone...
su
chmod 4755 /system/bin/sh
I always struggle trying to get permissions after I've first rooted but can never remember the exact sequence, but do know it's a combination of what I've suggested.
Click to expand...
Click to collapse
ill give it a try after uni lol. thanks for all the help mate, its awesome having a place to get advice and help
EDIT: finally got it working... i pushed the file to sdcard then used the terminal emulator and used:
su
mount -o remount,rw -t yaffs2 /dev/block/mtdblock2 /system
cd sdcard
cat x.apk /data/app/x.apk
and that worked perfectly lol