Database Users

How to UNINSTALL unwanted stock/preinstalled apps from G1

How to remove unwanted stock/preinstalled apps
This is not a question. This is howto
I DID search through the forum and found nothing but
Q: how to remove/uninstall preinstalled apps ?
A: no way !!!
WHAT ??? WRONG ANSWER !!!
Here is how:
First of all I’ll describe my rooted, of course, phone configuration, so if you are on the same boat you can do same trick 99% if not you’ll know where to go
- CyanogenMod 4.1.2.1 (this is latest experimental as of sept-05-09) –works very stable for me
- 4GB SD card partitioned: FAT32, ext3 (512mb), linux_swap (32mb)
(great guide how to part your sd here: http://androidcommunity.com/forums/f56/compcache-userinit-22465/index4.html#post232988 (page 4)
- CompCache with Backing Swap (here: http://androidcommunity.com/forums/f56/compcache-userinit-22465/index4.html#post232988 (page 1)
Requirements:
1) G1 rooted phone
2) Explorer with ability to explore /system folders – I use Astro (market)
3) PC/MAC
4) SDK installed on it (http://developer.android.com/sdk/download.html?v=android-sdk-windows-1.5_r3.zip)
Steps:
1) first and very important: full backup of your system.
- DO NANDROID (it’s preinstalled in Cyano, search forum for “nandroid” if you don’t have it)
- DO ext3.tar (if you use ext3)
- Make full SD copy to your PC
As described here: (yes, same tread, thanks to bdb4269) http://androidcommunity.com/forums/f56/compcache-userinit-22465/index4.html (page 4)
Now we are safe..well, almost
2) find full name for the application you want to uninstall, say for Amazon MP3 it will be com.amazon.mp3.apk
I did it like this
- open Astro explorer
- go to the very top (/)
- search “amazon”
- when search done, write down full app name
- long press trackball – chose – open containing folder – remember the path (ie /system/app)
3) Assume SDK and USB drivers are installed ( http://developer.android.com/guide/developing/device.html )
And phone is connected to pc/mac
= below guide is from http://oneclickandroid.blogspot.com/ with my comments =
- Start emulator (don’t think it is necessary, but lets follow – emulator located in SDK folder\tools\emulator.exe in my case C:\SDK_15\tools\
CMD window pops up for a second and disappeared
- open CMD prompt (in Windows: Start > run > print: cmd , hit OK/enter)
- execute "adb shell" in on terminal from SDK_ROOT/tool folder
(if you did not register SDK folder in windows variables you need to cd to this folder first:
print: cd c:\sdk_15\tools hit enter
print: adb shell hit enter, you’ll see new prompt appeared: #
- print: mount -o remount,rw /dev/block/mtdblock3 /system
This will mount your system folder with read/write permission
- go to system/apps folder of your phone
(print: cd /system/apps hit enter)
*** guide says “/system/apps” but in my case it is “/system/app” ??? (remember I asked you to write down full path and name from Astro ? check your path first ***
- print: rm yourunwantedapplication.apk
i.e. rm com.amazon.mp3.apk hit enter
now, check installed apps in your phone (no reload req.) – is amazon disappeared ?
I wish to try this with app for that has a replacement from the market, like
Dialer – aTakePhone or Music – Meridian etc
Hope someone brave will do it before I do
Deleting may be unsafe if other preinstalled apps or process have links to uninstalled app
What happens in this case? wish someone knows the answer.
I dont think this trick will speedup your phone if you've moved your apps to ext2/3/4 already I just dont want to see useless apps in my phone/pc
Please reply here if you have experience of deleting preinstalled apps
sorry, english is my second languague
Good luck !

Hahahaha... all that trouble just to install a few unnecessary apps off of a ROOTED phone?! If you had searched, you'd have seen the numerous posts where we've posted instructions on uninstalling apps through Terminal. Literally 4 lines of code at most! Note that you can do this with any app you don't want. I have xROM, and one of the first things I do whenever I clean install to the latest version is replace ringtones and remove apps, including HTC Mail, Email, Amazon mp3, and Android Music. It takes me about 2 minutes to remove these apps.
Example for removing Amazon MP3:
su
mount -o rw,remount /system
rm -r /system/app/com.amazon-mp3.apk
mount -o rw,remount /data
rm -r /data/data/com.amazon.mp3
exit
exit

uansari1 said:
mount -o rw,remount /data
Click to expand...
Click to collapse
/data is never mounted read-only.

zelipukin said:
...
- Start emulator (don’t think it is necessary, but lets follow – emulator located in SDK folder\tools\emulator.exe in my case C:\SDK_15\tools\
CMD window pops up for a second and disappeared
...
Click to expand...
Click to collapse
That's not how you start the emulator, in the window that disappears is a message telling you to start with the proper parameters, which you'd see if starting from a command line. If the emulator actually was running, then all your adb commands would then fail because it wouldn't know what device you wanted to address, you'd have to use "adb -d" to tell it to use the real device rather than the emulator.

jashsu said:
/data is never mounted read-only.
Click to expand...
Click to collapse
Thanks for the info.. guess I've been doing an extra step, but this means I can do I through terminal even faster.

Easy way to remove unwanted preinstalled apps
Use Root Explorer to browse to /data/app_s and find the applications you don't want. Delete the APK and ODEX files and you are done.
Always remember to make a backup of your phone, before you start deleting.

ewaldtx said:
Use Root Explorer to browse to /data/app_s and find the applications you don't want. Delete the APK and ODEX files and you are done.
Always remember to make a backup of your phone, before you start deleting.
Click to expand...
Click to collapse
The app_s folder is only used for Hero ROMs because there isn't enough space in /system, so it's placed in /system/sd (the mount point of the ext partition) if you have an ext partition for A2SD.
For regular google source builds just go to /system/app.

there is an app called rootexplorer it has a button to remove syatem apps. real easy to use. http://www.cyrket.com/package/com.sp...e.rootexplorer

saprano614 said:
there is an app called rootexplorer it has a button to remove syatem apps. real easy to use. http://www.cyrket.com/package/com.sp...e.rootexplorer
Click to expand...
Click to collapse
and it works great

Sorry to kind of hijack this but cyrket.com always shows as a blank page.
anyone know why or how to fix that?

i think simply deleting the apk files and data folder will keep an entry in some kind of registry in android. if i just delete the apk files and data folder and run fix_permissions, it shows the same number of processes.

SUFBS
is a rooted file browser and it is, by far, the easiest way of uninstalling any stock apps.
Click one button to make the system folder re-writable (same thing with data folder, just a button), navigate to the apps directory and just delete. or you can search for the app and just delete it from the search window. Voila!

Ssantos6981 said:
is a rooted file browser and it is, by far, the easiest way of uninstalling any stock apps.
Click one button to make the system folder re-writable (same thing with data folder, just a button), navigate to the apps directory and just delete. or you can search for the app and just delete it from the search window. Voila!
Click to expand...
Click to collapse
are you talking about rootexplorer or what? elaborate a little..
i just bought and downloaded/installed rootexplorer simply to delete stock apps. upon opening it ask me to allow it. i say yes and it says my phone isn't rooted.
weird.. i just upgraded from cyanogen v4.1.999( or something around that) to the newest 4.2whatever. so how if my phone not rooted?!

blackinches said:
are you talking about rootexplorer or what? elaborate a little..
i just bought and downloaded/installed rootexplorer simply to delete stock apps. upon opening it ask me to allow it. i say yes and it says my phone isn't rooted.
weird.. i just upgraded from cyanogen v4.1.999( or something around that) to the newest 4.2whatever. so how if my phone not rooted?!
Click to expand...
Click to collapse
try it again lol. it should work
make sure your not on the stock adp recovery

Root explorer!!!

Hi,
i'm trying ro remove stock apps for quite a few days, and i'm getting desperate!
I have everything... titatium, terminal, root explorer, etc etc
with terminal I also receive "directory not empty", but with root explorer I can delete the apk's from /system/app ... I confirm after that they are not there, bus as soon as I reboot the phone they come back.
what can I do ?
I have HTC desire with stock android, rooted .. and also a couple of programs I instaled I don't really knwo what they do.. like rom manager, clockword recovery, etc
plz help!

Sleeepy2 said:
Sorry to kind of hijack this but cyrket.com always shows as a blank page.
anyone know why or how to fix that?
Click to expand...
Click to collapse
It is because the full url path is not correct. Hover cursor over link and look at lower left corner to view the url path...it has those .... in it and will not work. We need the full exact url path.

just use titanum backup,rt click on application it will show (remove),be sure u didn't updated any stock app e.g gmail update

Regarding using Root Explorer on stock G Tab updated to 1.2-4349...
Trying to remove some of the apps preloaded and using Root Explorer get a statement - my phone not rooted.
I want to get the apps off. What to do now? Thanks http://media.xda-developers.com/images/smilies/smile.gif

Thanks for this clear procedure !

Get Apk file from Market

When i download and install an App from the Android Market where the Apk installation file is temporary placed? Which path?
tnx in advance

the apk's are stored at /data/app and /data/app-private after you installed the app and will be removed if you uninstall it.

Tnx for the answer mopodo, but if i hard reset the device, can i will use theese files to reinstall them?
i'm sorry for my bad english...

sidvizioso said:
Tnx for the answer mopodo, but if i hard reset the device, can i will use theese files to reinstall them?
i'm sorry for my bad english...
Click to expand...
Click to collapse
No, you can make a backup to your SD card with apps like MyBackup or Backup For Root Users.

So which is the temp path of the downloaded apk from market?
i want to grab them...

Pinesal said:
No, you can make a backup to your SD card with apps like MyBackup or Backup For Root Users.
Click to expand...
Click to collapse
of course you can.
you just have to copy them to your sdcard or pc an install them again, with «adb install something.apk» or «Astro File Manager» (or a similar file managerapp)
a hard reset will delete everything on «/data»

If you have root copy the contents of both folders to your SD card.
mkdir /sdcard/apps
cp /data/app/* /sdcard/apps
cp /data/app-private/* /sdcard/apps
Then after you wipe (I've never heard anyone call it a 'hard reset' before) you can use an app like Astore or ApkInstaller to reinstall them.
If you don't have root then not only will you not be able to read app-private, but your ROM wont have busybox so you wont be able to bash in those commands. In that case use an app like Astro or AppManager to copy non-private apks to the sdcard, but for private apps you'll have to redownload them (without being charged of course.)
Pinesal said:
No, you can make a backup to your SD card with apps like MyBackup or Backup For Root Users.
Click to expand...
Click to collapse
Only if they're non-private (reside in /app, private being /app-private).

He's probably coming from WinMo. We called a factory reset/wipe a hard reset.

mopodo said:
the apk's are stored at /data/app and /data/app-private after you installed the app and will be removed if you uninstall it.
Click to expand...
Click to collapse
Slightly off topic lol But i see you said Private does that mean you could manually back up Private apps you buy off market by just copying them /w root access?

When I run the following from an adb shell, with or without SU root:
cp /data/app/* <my location on sd>
I always get:
cp: permission denied
In fact, no matter how or where I cp from or to, and no matter what I am trying to copy, even if I leave all arguments blank, I still get "cp: permission denied" -- I have busybox installed in /system/xbin from /data/local and as far as I can tell it installed ok. Phone is a rooted Sprint hero 1.56.651.2 running stock ROM.
I have also tried to 'adb pull /data/app' and it always find 0 files. None of this is a big deal for me, however, as I am just trying to backup a bunch of apks for free apps in case versions change too much. Mostly just curious...
Any ideas?
EDIT: Both Astro and AppManager handled the (non-private) apk backups fine -- so I have no real need for the cp method to work, but I am still wondering why it will not -- is it the adb shell? must I use a terminal emulator from on the phone instead? something else? Anyways, if I really want to pursue it, perhaps I should take it to a busybox thread at this point...
EDIT2: It appears as if the 'cp' command as I was running it wasn't getting passed through busybox (not sure why). From what I can piece together reading other threads, it seems that if you have installed busybox on top of a ROM that doesn't already have it (like stock, after rooting and recovery setup) than you must prefix commands with 'busybox' when entered, as in 'busybox cp /data/app/* <my location>' and it does work for me that way. Still cannot seem to copy /data/app-private which I thought having root access would allow -- I guess I just don't understand nearly enough about busybox implementation, linux permissions, and, well, linux in general.

You could try an app manager and back 'em up from there.

Just try the following command.
busybox cp /data/app/* /sdcard/<your backup loc>
askwhy said:
When I run the following from an adb shell, with or without SU root:
cp /data/app/* <my location on sd>
I always get:
cp: permission denied
In fact, no matter how or where I cp from or to, and no matter what I am trying to copy, even if I leave all arguments blank, I still get "cp: permission denied" -- I have busybox installed in /system/xbin from /data/local and as far as I can tell it installed ok. Phone is a rooted Sprint hero 1.56.651.2 running stock ROM.
I have also tried to 'adb pull /data/app' and it always find 0 files. None of this is a big deal for me, however, as I am just trying to backup a bunch of apks for free apps in case versions change too much. Mostly just curious...
Any ideas?
EDIT: Both Astro and AppManager handled the (non-private) apk backups fine -- so I have no real need for the cp method to work, but I am still wondering why it will not -- is it the adb shell? must I use a terminal emulator from on the phone instead? something else? Anyways, if I really want to pursue it, perhaps I should take it to a busybox thread at this point...
EDIT2: It appears as if the 'cp' command as I was running it wasn't getting passed through busybox (not sure why). From what I can piece together reading other threads, it seems that if you have installed busybox on top of a ROM that doesn't already have it (like stock, after rooting and recovery setup) than you must prefix commands with 'busybox' when entered, as in 'busybox cp /data/app/* <my location>' and it does work for me that way. Still cannot seem to copy /data/app-private which I thought having root access would allow -- I guess I just don't understand nearly enough about busybox implementation, linux permissions, and, well, linux in general.
Click to expand...
Click to collapse

Well in windows
'adb pull' is used if that helps

Custom Rom App Removal

hey guys,
how would i go about removing apps from an installed custom rom?
ive tried titanium back... doesnt work, tried pulling the apps from the pack nothing,
ive tried root exploits and it just sends your phone into an almost
"paperweight"
like state,
any further moves i can do to remove various bits ? there as some things i just genuinely dont want.

Telling which rom and which apps might help

[ROM] Pays-ROM HD SPARTA v1.0 [ULTRA LIGHT] [19/NOV/10]
[ROM] Pays-ROM HD SPARTA v1.0 [ULTRA LIGHT]
i cant list the apps i want to remove as im off to work, but can you do some background work into it for me??

fkofilee said:
[ROM] Pays-ROM HD SPARTA v1.0 [ULTRA LIGHT]
i cant list the apps i want to remove as im off to work, but can you do some background work into it for me??
Click to expand...
Click to collapse
Have you tried doing it from terminal?
Code:
adb remount
adb shell
su
cd /system/app
ls *
rm INSERTANNOYINGAPPNAMEHERE
reboot
adb pull is not for deleting apps. It is for copying the app to your computer.

when i say pull... lol. i mean removing them from the system completely

fkofilee said:
when i say pull... lol. i mean removing them from the system completely
Click to expand...
Click to collapse
I've just discovered there are issues where /system isn't getting wiped correctly prior to a new rom being flashed. Keep getting apps from other roms and such sitting in my /system folder even after a wipe and flash - at this stage I assume CWM is bugged? Could be your issue is related.

nope the ADB coding doesnt work as its almost like there is a PERMANENT R/w lock on the section i need to remove apps from

unfortunately the issues AERNT related, as ive wiped everything before, these apps are pre installed on the ROM. What does me with this is that the root exploit to remove these apps as in Titanium backup ... just turns the phone into a very expensive paperweight till the battery is remove
weather apps (widgets etc,)
Twitter apps , teet and various other bits i want to remove

fkofilee said:
unfortunately the issues AERNT related, as ive wiped everything before, these apps are pre installed on the ROM. What does me with this is that the root exploit to remove these apps as in Titanium backup ... just turns the phone into a very expensive paperweight till the battery is remove
weather apps (widgets etc,)
Twitter apps , teet and various other bits i want to remove
Click to expand...
Click to collapse
Get a new rom ???

hmm flash a new rom??this is the most refined rom i can find for DHD.
for that reason its more of a hassle to flash new roms
I would rather crack it, mind you i might be really thick asking this. that code you gave me have i got to get the adb.exe from android SDK and do this via a cmd.exe window on my pc or have i got to do it on my phone via termnial emulator.

how weird!!!... i used to terminal emulator to allow su (I.E to give system SU Permissions and now i can remove the apps ) haha
Shocked!!
Admin Please close & Deleted Thread.

fkofilee said:
hmm flash a new rom??this is the most refined rom i can find for DHD.
for that reason its more of a hassle to flash new roms
I would rather crack it, mind you i might be really thick asking this. that code you gave me have i got to get the adb.exe from android SDK and do this via a cmd.exe window on my pc or have i got to do it on my phone via termnial emulator.
Click to expand...
Click to collapse
Yes from the android sdk. It *should* work from a terminal emulator as well if you run these commands first to mount the /system/app directory as read/write:
Code:
mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system
chmod 777 /system/app
Other option would be to use the root explorer app, it is a paid app though well worth it.

dr.m0x said:
Yes from the android sdk. It *should* work from a terminal emulator as well if you run these commands first to mount the /system/app directory as read/write:
Code:
mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system
chmod 777 /system/app
Other option would be to use the root explorer app, it is a paid app though well worth it.
Click to expand...
Click to collapse
Weird thing is i tried root explorer , and it still wouldnt R/W the app folder... but as i said now solved... slightly weird though that i completely missed that lil bit on the su permissions for the system directly.

fkofilee said:
Weird thing is i tried root explorer , and it still wouldnt R/W the app folder... but as i said now solved... slightly weird though that i completely missed that lil bit on the su permissions for the system directly.
Click to expand...
Click to collapse
Yeah you ninja'd my last post
Glad to hear you're gtg now.

but mind you the mount script i ran and it didnt work lol.... maybe i did them the wrong way round, (Raise SU first then do mount cmd??)

dr.m0x said:
Have you tried doing it from terminal?
Code:
adb remount
adb shell
su
cd /system/app
ls *
rm INSERTANNOYINGAPPNAMEHERE
reboot
adb pull is not for deleting apps. It is for copying the app to your computer.
Click to expand...
Click to collapse
Works. Thanks!

How to Install/Remove System Apps on Android [MUST HAVE ROOT]

########## IMPORTANT UPDATE ##########
There is an APP available that makes this much simpler
* No Console Commands Needed
* You still MUST HAVE ROOT
* It must be installed on internal memory to work correctly
* Be sure you know what a system app does before you remove it.
* If you remove a vital app you could mess up your system completely.
The APP is Called: "System APP Remover"
Here's a Link to Download it: http://www.megaupload.com/?d=ZFC2C1R7
Mirror Download Link: http://www.mediafire.com/?h3n3ftbwilshcvn
######################################
Here are the console commands for installing/removing system apps in android console emulator, very easy ; )
You must have ROOT and console emulator, I found this very helpful, so I hope it helps others as well...
_____________________________________________________________________________________
Install App to System:
Place APK file in the root folder on your sd card.
Open terminal and enter these commands:
# su
# mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system
# cat /sdcard/filename.apk > /system/app/filename.apk
# mount -o remount,ro -t yaffs2 /dev/block/mtdblock3 /system
# reboot
_____________________________________________________________________________________
Remove App from System (Be careful what you remove):
# mount -o remount,rw /system
# rm /system/app/Filename.apk
[Optional, to make read-only again]
# mount -o remount,r /system
[When Finished]
# reboot
_____________________________________________________________________________________
****KEY****
"#" means root command will follow
[Notes are in these brackets and aren't commands]
- ENJOY
ALSO...
**** I'm new to Android APP creation, but if anyone can automate this script to make a simple One-Click GUI APP that would be awesome, all I ask is that you put my name in the co-dev/"Thanks to" list for the app, just so I can say I helped ;-) ****
- CuriousAndroid

I am trying to reinstall some files I uninstalled. I went to the following link on this site and found some apps that people said could be removed - http://forum.xda-developers.com/showthread.php?t=773142
however, my Act1 video player now quits whenever I receive an incoming text, so I need to reinstall some programs and see which one is causing the problem
I downloaded an app called Android Terminal Emulator by Jack Palevich. I tried a "reboot" command (without the #) but it said reboot operation not permitted. Is this the Emulator I need to reinstall files? Am I doing something wrong?
--------------
EDITED:
ok nevermind, i realized the "su" command gives superuser access needed for the reboot....going to try to install files now

yeah, to use any root commands "su" must be used first otherwise the shell will think your just some generic user with limited privileges and nothing will work.
It's very important to identify any apps you plan on removing before you attempt it to make sure it isn't needed by another process.
You got lucky, some apps once removed can cause the whole rom to fail, so be careful!
- CuriousAndroid

well i think i messed something up...is there a way to recover back to stock after using the sdx stock app remover? i removed the video player but tried reinstalling it...when i uninstalled it from sdx, i noticed my other video player (Act1) would quit whenever i'd get an incoming text
i have all the .apks backed up, but after attempting to reinstall the stock video player, it hangs in MyFiles...then i reset back to factory (no Act1), and it can't play my videos, i get the error "No applications can perform this action"
Is there a way to recovery back to stock with all applications installed and in tact? i have all the .apks, but this video player won't work, after following your instructions above
thanks

It will work. Check the following:
* All shell commands are CASE-sensitive, so if the app is called Vending.apk you can't type vending.apk
* for the command to work you must have the apk on the root of your SDcard, not in sub-directories.
* if you have a copy of the rom you installed you can unzip it on your PC and find the system app folder, which you can use to cross-refference with the system/app folder on your phone to see if your missing something else.
in terminal you can list system apps like this:
# su
# cd /system/app/
# ls | more
[that will allow you hit space bar to navigate through app list if it's longer than a page,press ESC when done to go back to prompt]
* If all else fails you can backup your settings to your sd card and re-install your rom (as a last resort)
-Good Luck

curiousandroid said:
Install App to System:
Place APK file in the root folder on your sd card.
Open terminal and enter these commands:
# su
# mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system
# cat /sdcard/filename.apk > /system/app/filename.apk
# mount -o remount,ro -t yaffs2 /dev/block/mtdblock3 /system
# reboot
_____________________________________________________________________________________
Remove App from System (Be careful what you remove):
# mount -o remount,rw /system
# rm /system/app/Filename.apk
[Optional, to make read-only again]
# mount -o remount,r /system
[When Finished]
# reboot
_____________________________________________________________________________________
****KEY****
"#" means root command will follow
[Notes are in these brackets and aren't commands]
- ENJOY
ALSO...
**** I'm new to Android APP creation, but if anyone can automate this script to make a simple One-Click GUI APP that would be awesome, all I ask is that you put my name in the co-dev/"Thanks to" list for the app, just so I can say I helped ;-) ****
- CuriousAndroid
Click to expand...
Click to collapse
When I am doing the first part here of installing app to system I dont just simply do that first I can already have an app ready to go that I want to move to sd card right? I am just making sure I didnt have to do that simply first before I even start moving the apps. This site has be great and thanks for everybody help. Wish I would have known have this site way back when.

What is "yaffs2" standing for? I type "yaffs" instead of "yaffs2". What has this done to my system? Do I have to expect any "side-effects"?
When I call # ls | more to list the directories content, the apk is listed but it is not installed yet. Is there anything else i have to do?

yaffs is nand flash filesystem
yaffs2 is more elaborate updated version
yaff2 has greater support
so if your device isnt supported by yaffs1, it may not work.
it's best to follow the commands as they're written.
apps still appear as apks in system/apps folder after installation.

Haha thats funny!! I downloaded this app.. put it on my sdcard.. installed it and when i tried to open it it said " Shame on you for trying to pirate a 1.00 app "

If you have Applanet just go there and look for Systemapp Remover - it's a bit older version but seems to do the job.

By mistake my contacts.apk is removed. Above trick also not worked. my phone is LG GT540. Pl suggest any other way.

rajhan9412 said:
By mistake my contacts.apk is removed. Above trick also not worked. my phone is LG GT540. Pl suggest any other way.
Click to expand...
Click to collapse
Grab the contacts.apk from the rom you're running and push it back in. Btw titanium backup removes system/apps without terminal commands while allowing to to make a backup first in case u want. it back or for little hickups such as this.
Sent from transparent xda app by theimpaler747

I did everything right, and the apps that I removed disappeared from the app drawer. But, after I reboot my phone, they show up again.
What can I do?

In terminal type
ls system/app
Hit enter and see if said apps are in the list
Sent from my HTC Sensation 4G using XDA App

i got a better method.
app is called app quarantine
it need root and is totally free
it can quaratine every app including rom apps and system apps
really that thing awesome. no manuall backup needed anymore and as long you dont brick the os you can easy try and error - but of course still be carefull and login and activate com.brain.logic.provider lol

Hi there i use root explorer and that is the easiest way i think to remove system apps on android phones [root required] you can download root explorer from the market or get it from 4shared just search for root explorer.apk install it and navigate to /system/apps/ and the app you wish to delete long press the app and delete make sure you mount as read/write instead of read only.
Hope this helps 
@0mpranav

actually its not and actually you didnt read my post
i advertise this little peace of freeware because it really made my day (im not related in anyway to the developer)
the quarantine removes it but store it automatically in another directory
just multiselect and press one button DONE
no need to single delete something because you always should backup first
for example turns out on samsungs device EMAIl application is also related to exchange sync - huh i was happy to restore it
really take a look -
btw i hate the root explorer - for some taksts might be usefull but fileexpert is way better in that and its free as the quaratine app is too

bofh999 said:
actually its not and actually you didnt read my post
i advertise this little peace of freeware because it really made my day (im not related in anyway to the developer)
the quarantine removes it but store it automatically in another directory
just multiselect and press one button DONE
no need to single delete something because you always should backup first
for example turns out on samsungs device EMAIl application is also related to exchange sync - huh i was happy to restore it
really take a look -
btw i hate the root explorer - for some taksts might be usefull but fileexpert is way better in that and its free as the quaratine app is too
Click to expand...
Click to collapse
You were right mate got problems in upgrading my nexus one coz i deleted the .odex system apps directly without any backup but upgraded to 2.3.6 with some trial and error method but lost root access any help would be appriciated 
@0mpranav

Installing system app
Hi, i have the same problem. I tried Root Explorer, and the Shell Commands method (with Cat command), the files i copy are in there, with all the permissions and everything, but when i reboot, none of them are installed, and my "contacts" app is still broken. Can anyone help please?

Nevermind, found the problem. I needed the exact files for my Atrix 4G with the same android version.

[Q] Honeycomb Keyboard

I'm kinda new to android
I've started to delete useless apps through Titanium Backup(acer staff,games etc) , and exidently deleted smth connected with honeycomb stock keyboard.
Now every time when i want to use stock keyboard, pops up a messege "The application Android keyboard (process com.google.android.inputmethod.latin) has stopped unexpectedly. plz try again".
Ive tryied to reset factory data but it wont helped. Is thera any solution for this problem? if there no, plz tell how to completely reset tablet) ive read "system Images " thread but i didn understand some things
here is my recover steps: (for a500 which is bricked)
for a500 is normal:
root it
put the system.img into a500
connect to the computer with adb and follow the codes:
su
dd if=/sdcard/system.img of=/dev/block/mmcblk0p3
then reboot
Click to expand...
Click to collapse
connect to the computer with adb and follow the codes:
su
dd if=/sdcard/system.img of=/dev/block/mmcblk0p3
what that means)

You might very well have ruined your tablet.
I'm not a developer or coder so I can't make any sense of the code you posted but if a reset didn't fix it then you've certainly deleted something important. Hopefully someone has some ideas.
If not, then maybe you can return it? And next time, don't delete something unless you know what it is you're deleting.

ok ive recovered from image, but now wifi is not working , what should i do?

There are posts about having to change file permissions to fix wifi. Search this forum, there are a few.
edit - linked post
http://forum.xda-developers.com/showthread.php?t=1074449&highlight=wifi+permission

yeah ive read this but i dont know how to move that files to system folder on devide, wifi is down , so i cant download any file managing apps from market and theres no any file managers on stock Rom

If you've got the adb working, you can use the command mv to move the file.
I'm not sure of the exact path involved, but for example. the file is in /mnt/sdcard/filetobemoved and needs to go into /sytem/lib/modules
mv /mnt/sdcard/filetobemoved /system/lib/modules
That'd put it in the location you need. To change the permissions, you'd use the command chmod
chmod 655 /system/lib/modules/filetobemoved
The 655 is an octal(0-7) representation of the file's permissions. I'm not sure what permissions it needs, but you could try 655 as a start unless someone else knows for sure.
if you want, hit me up on msn, I can try to walk you through it: [email protected]

Glebaka said:
ok ive recovered from image, but now wifi is not working , what should i do?
Click to expand...
Click to collapse
Ah *phew* Good to hear.

gammaRascal said:
Ah *phew* Good to hear.
Click to expand...
Click to collapse
lol How'd he get in that shape to begin with? Any idea what exactly it was he deleted that bonked his system?

muqali said:
lol How'd he get in that shape to begin with? Any idea what exactly it was he deleted that bonked his system?
Click to expand...
Click to collapse
No clue. I really should start reading up on HC app development and at least familiarize myself with that environment.
I haven't rooted yet cause I'm e'scarded to.

ahh i cant replace that files , somehow installed astro manager(through docsttogo) but i cant remove/replace/rename that files in system/lib/modules it says i dont have permission to do this.
tryed in connectbot type "mv /mnt/sdcard/filetobemoved /system/lib/modules"
got this "failed on '/system/lib/modules/filename' - cross-device link"
im rooted what if

Glebaka said:
ahh i cant replace that files , somehow installed astro manager(through docsttogo) but i cant remove/replace/rename that files in system/lib/modules i dont have permission to do this.
tried connectbot tryied "mv /mnt/sdcard/filetobemoved /system/lib/modules"
got this "failed on '/system/lib/modules/filename' - cross-device link"
im rooted
Click to expand...
Click to collapse
type mount and paste/retype the line that has /system in it. It might be mounted read only.
or try the cp command in place of mv
edit - also, the filetobemoved is just an example. I think one of the filenames is bcm4329.ko but I'm not sure. so /system/lib/modules/bcm4329.ko would be the full path

ah im total noob tried cp instead of mv it said permission denied .
t
ype mount and paste/retype the line that has /system in it. It might be mounted read only.
Click to expand...
Click to collapse
i didnt get that (
edit - also, the filetobemoved is just an example. I think one of the filenames is bcm4329.ko but I'm not sure. so /system/lib/modules/bcm4329.ko would be the full path
Click to expand...
Click to collapse
yeah thats i know)

Are you logged into the tablet using adb's shell? I've only used that once on a different tablet, but iirc the commands are standard Unix/Linux commands. Someone correct me if I'm wrong but aren't you already logged in as superuser like this? You don't need to 'sudo' or 'su' to switch over do you?
I'm not familiar enough with this specific environment to figure out what might be keeping you from placing those files in that location. The command to check the partitions mount options is
mount
It should return a bunch of text, one line of which is gonna be the /system partition. If it's ro(read only) then you can't write to it and would need to remount it.

yeah it looks like it is "ro"
ive got /system ext4 ro
how to remount)

My knowledge of adb is limited as well. All I know is that I can connect to it, type: adb devices (in the command prompt) to make sure it sees my tab then 'adb push filename.extension /directory/structure' to force files... Conversly, I think adb pull filename.extension /directory/structure will grab files on the tab if you know what they are called and where they are located.

Glebaka said:
yeah it looks like it is "ro"
ive got /system ext4 ro
how to remount)
Click to expand...
Click to collapse
what was the /dev/block/mtdblock for /system?
there is a number after it...for example /dev/block/mtdblock1
mount -o rw,remount -t ext4 /dev/block/mtdblock1 /system
would remount it read/write, provided that it is mtdblock1, change the number depending on what your device has.

yeah now /system have "rw", but it anyway refuses to copy using mv(failed on '/system/lib/modules/filename' - cross-device link"
) or astro manager

Glebaka said:
yeah now /system have "rw", but it anyway refuses to copy using mv(failed on '/system/lib/modules/filename' - cross-device link"
) or astro manager
Click to expand...
Click to collapse
If cp won't put it there either, I'm out of ideas. Maybe ask in the other thread how they were able to copy/move the file and set the permissions?

I know it may not be really classy, but how about downloading an .apk That will let you mount the drive, to an sd card in a computer then transfer that to the Acer. (If it's an extreme case and nothing else will work..not condoning piracy, but don't know what would work...)
or is it possible to copy the system data from a Titanium backup and send it over so he can restore the missing files?

This following step I can't be responsible for it's safety. It looks safe to my eyes, but proceed having been forewarned. I did some research and you might be able to use dd to get the file there.
dd if=/mnt/sdcard/filname of=/system/lib/modules/filename