There are a few methods how you can mount your /system directory RW or RO. However, it will require root.

Method 1:

1. Connect your phone to the computer. (Make sure USB debugging is enabled on your phone)

2. Open CMD/Terminal on your PC.

   • Windows: CTRL + R, then type cmd.

   • Ubuntu: CTRL + ALT + T.

   • Mac: Navigate to /Applications/Utilities/ and double-click on Terminal.

3. Type this:

   1. adb shell

   2. su

   3. Choose one: (for security mount /system back to RO when finished)

      • Mount system RW: mount -o rw,remount /system
      • Mount system RO: mount -o ro,remount /system

Method 2:

1. Open terminal on your android phone (download here):

2. Type this in the terminal:

   1. su

   2. Choose one: (for security mount /system back to RO when finished)

      • Mount system RW: mount -o rw,remount /system
      • Mount system RO: mount -o ro,remount /system

Android 2.3

For people running Android 2.3 and the command fails, look at this answer: https://android.stackexchange.com/a/125437/95577

There are a few methods how you can mount your /system directory RW or RO. However, it will require root.

Method 1:

1. Connect your phone to the computer. (Make sure USB debugging is enabled on your phone)

2. Open CMD/Terminal on your PC.

   • Windows: CTRL + R, then type cmd.

   • Ubuntu: CTRL + ALT + T.

   • Mac: Navigate to /Applications/Utilities/ and double-click on Terminal.

3. Type this:

   1. adb shell

   2. su

   3. Choose one: (for security mount /system back to RO when finished)

      • Mount system RW: mount -o rw,remount /system
      • Mount system RO: mount -o ro,remount /system

Method 2:

1. Open terminal on your android phone (download here):

2. Type this in the terminal:

   1. su

   2. Choose one: (for security mount /system back to RO when finished)

      • Mount system RW: mount -o rw,remount /system
      • Mount system RO: mount -o ro,remount /system

mount responds '/system' or '/system/' not in /proc/mounts

You possibly have put a / after ...remount /system. This can not work, it isn't in the mounts file, /proc/mounts. Remove this / from the command you use.

You can use mount -o rw,remount / (a comment from user:39571, Geremia).

Android 2.3

For people running "Android 2.3" and the command fails, specify the target (from this answer): mount -o remount,rw /system /system.

There are a few methods how you can mount your /system directory RW or RO. However, it will require root.

#Method 1:

1. Connect your phone to the computer. (Make sure USB debugging is enabled on your phone)

2. Open CMD/Terminal on your PC.

   • Windows: CTRL + R, then type cmd.

   • Ubuntu: CTRL + ALT + T.

   • Mac: Navigate to /Applications/Utilities/ and double-click on Terminal.

3. Type this:

   1. adb shell

   2. su

   3. Choose one: (for security mount /system back to RO when finished)

      • Mount system RW: mount -o rw,remount /system
      • Mount system RO: mount -o ro,remount /system

#Method 2:

1. Open terminal on your android phone (download here):

2. Type this in the terminal:

   1. su

   2. Choose one: (for security mount /system back to RO when finished)

      • Mount system RW: mount -o rw,remount /system
      • Mount system RO: mount -o ro,remount /system

##Android 2.3 For people running Android 2.3 and the command fails, look at this answer: https://android.stackexchange.com/a/125437/95577

There are a few methods how you can mount your /system directory RW or RO. However, it will require root.

Method 1:

1. Connect your phone to the computer. (Make sure USB debugging is enabled on your phone)

2. Open CMD/Terminal on your PC.

   • Windows: CTRL + R, then type cmd.

   • Ubuntu: CTRL + ALT + T.

   • Mac: Navigate to /Applications/Utilities/ and double-click on Terminal.

3. Type this:

   1. adb shell

   2. su

   3. Choose one: (for security mount /system back to RO when finished)

      • Mount system RW: mount -o rw,remount /system
      • Mount system RO: mount -o ro,remount /system

Method 2:

1. Open terminal on your android phone (download here):

2. Type this in the terminal:

   1. su

   2. Choose one: (for security mount /system back to RO when finished)

      • Mount system RW: mount -o rw,remount /system
      • Mount system RO: mount -o ro,remount /system

Android 2.3

For people running Android 2.3 and the command fails, look at this answer: https://android.stackexchange.com/a/125437/95577

There are a few methods how you can mount your /system directory RW or RO. However, it will require root.

#Method 1:

1. Connect your phone to the computer. (Make sure USB debugging is enabled on your phone)

2. Open CMD/Terminal on your PC.

   • Windows: CTRL + R, then type cmd.

   • Ubuntu: CTRL + ALT + T.

   • Mac: Navigate to /Applications/Utilities/ and double-click on Terminal.

3. Type this:

   1. adb shell

   2. su

   3. Choose one: (for security mount /system back to RO when finished)

      • Mount system RW: mount -o rw,remount /system
      • Mount system RO: mount -o ro,remount /system

#Method 2:

1. Open terminal on your android phone (download here):

2. Type this in the terminal:

   1. su

   2. Choose one: (for security mount /system back to RO when finished)

      • Mount system RW: mount -o rw,remount /system
      • Mount system RO: mount -o ro,remount /system

#Method 3:

If you don't want to type the command every time in the terminal, I've written an app designed to do this for you:

• Google Play - Mount /system RO/RW [ROOT].
• Google Play - Mount /system RO/RW Pro [ROOT] (Pro version without ads)

##Android 2.3 For people running Android 2.3 and the command fails, look at this answer: https://android.stackexchange.com/a/125437/95577

There are a few methods how you can mount your /system directory RW or RO. However, it will require root.

#Method 1:

1. Connect your phone to the computer. (Make sure USB debugging is enabled on your phone)

2. Open CMD/Terminal on your PC.

   • Windows: CTRL + R, then type cmd.

   • Ubuntu: CTRL + ALT + T.

   • Mac: Navigate to /Applications/Utilities/ and double-click on Terminal.

3. Type this:

   1. adb shell

   2. su

   3. Choose one: (for security mount /system back to RO when finished)

      • Mount system RW: mount -o rw,remount /system
      • Mount system RO: mount -o ro,remount /system

#Method 2:

1. Open terminal on your android phone (download here):

2. Type this in the terminal:

   1. su

   2. Choose one: (for security mount /system back to RO when finished)

      • Mount system RW: mount -o rw,remount /system
      • Mount system RO: mount -o ro,remount /system

##Android 2.3 For people running Android 2.3 and the command fails, look at this answer: https://android.stackexchange.com/a/125437/95577