Install TWRP Recovery on the Metro PCS Galaxy S3
If you have already rooted your device, the next step is to install what is called a Custom recovery. A Custom Recovery tool like TWRP or CWM provides a lot more functionality than available on the stock Android recovery which your device came with. Custom recoveries include the ability to flash custom ROMs, kernels, flashable OTA updates, and pretty much anything that needs flashing. A custom recovery also includes various maintenance tools, including the ability to create a full backup of your existing ROM, and restore to it in case you are not happy with a new ROM you flashed. There are two popular custom recoveries available for most Android devices, Clockworkmod Recovery or CWM as it is popularly known as, and TWRP (Team Win Recovery Project). Here's a step-by-step guide on how you can install the fully touch-based TWRP Recovery on your Galaxy S III. There are multiple ways to get TWRP up and running on the Metro PCS SGS III and I am going to cover all of them on this page, starting with the easiest and the fastest method which requires that your device be already rooted.
Install TWRP Recovery on the Metro PCS Samsung Galaxy S III
A. Goo Manager App Method (Preferred and Recommended by the TWRP Team)
- Download & Install the free Goo Manager App from the Google Play Store
- Launch the Goo Manager app on your Galaxy S III
- Click the three vertical dots at the top right hand side of the screen to access the Goo Manager Options menu
- From the dropdown menu, click Install OpenRecovery Script (Indicated by the blue arrow in the screenshot above)
- Just click Yes to the prompts that follow
- Goo Manager will automatically download and install the latest version of TWRP recovery to your device
- To check if TWRP has been installed properly, just click Reboot Recovery from the Goo Manager options and boot into TWRP recovery mode
B. Manual Method - Using ADB ( More complicated and involves typing in manual commands)
- Download the latest TWRP Recovery image file from --> HERE . Save it to a convenient location on your PC
- Make sure you have the ADB (Android Debug Bridge) installed on your computer. If you don't have it already you can use this excellent guide to set it up on your PC.
- On your phone, go to Settings --> Developer options and make sure USB Debugging is enabled. Then Connect your phone to the PC
- On your PC, navigate to the location where you saved the TWRP .img file from Step 1
- While holding down the Shift key on your PC keyboard, Right click and select Open Command Window Here from the options
- That should automatically open up a command prompt on your screen. Type in the following command to check if ADB recognizes your phone
- You should see a string of alpha-numeric characters returned, which means that ADB recognizes your device and is ready to roll
- Now we would be transferring the downloaded TWRP recovery .img file to your device via ADB. Type in the following command in the command prompt
adb push openrecovery-twrp-220.127.116.11-d2mtr.img /sdcard/
- The command above will move the TWRP recovery image to the root of the Internal SDcard on your phone
- Type in the following command next, step is to make a backup of your existing recovery, so that you can get back to where you started if things go wrong. This will create a backfile on your internal SDcard named recovery-backup.img
# dd if=/dev/block/mmcblk0p18 of=/sdcard/recovery-backup.img
- Now for the main action. Type in the following commands to flash TWRP recovery to your system. ***Make sure you get this command absolutely right. Mistakes could result in a sleek and shiny brick***
# dd if=/sdcard/openrecovery-twrp-18.104.22.168-d2mtr.img of=/dev/block/mmcblk0p18
- To check if TWRP recovery has been installed successfully, simply power off your phone and reboot it using the three button combo - Volume Up + Home + Power buttons and release them when you see the tiny blue text at the top of the screen.
C. ODIN Flash Method
- Download the latest Odin flashable .tar file for TWRP Recovery from --> HERE
- Download Odin from --> HERE. Once downloaded, extract the zip file to your desktop
- Make sure you have all the correct drivers for your device installed on you computer. You can get them --> HERE. Reboot your system once after installing the drivers
- Now power off your Galaxy S III completely. We will now be putting your phone into Download mode or Odin Mode as it is also called. Download mode is basically a Samsung Exclusive mode which allows flashing of firmware via Odin. Odin can only communicate with Samsung devices when they are in Download Mode. To get there, press and hold these keys together: Volume Down + Home + Power till the screen turns on. Then press Volume Up to enter download mode
- Launch Odin by double-clicking the Odin3 executable file from Step 2.
- Connect your phone to your PC using the USB data cable, preferably the one that came with the phone. Any microUSB cable should work, but I prefer to use the one supplied with the phone to avoid any unforeseen complications. You should see the message Added!! in the main Odin message box like in the screenshot below, as well as as COM Port number in the first slot directly above the message box, which tells you that Odin has recognized your device and is communicating with it.
- If you donít get the Added! message, make sure that you have installed the drivers correctly OR Try using a different USB Port on your PC OR Try using a different USB cable, preferably the one that came with the phone. If what you see in Odin is exactly like in the screenshot above, proceed to the next step
- In Odin, click on the PDA button, and select the openrecovery-twrp-22.214.171.124-d2mtr.tar file that you downloaded in step 1
- In Odin, make sure the Auto Reboot and F Reset Time boxes are ticked. They are usually checked by default. Leave everything else in Odin as default.
- Click the Start button in Odin to start flashing TWRP recovery to your device. Once Odin has finished flashing recovery .tar file successfully, you should see that the box to the the Top Left in the Odin window will turn Green with the status message PASS!. In case something gets messy, like Odin getting stuck after you hit Start button, OR you getting a FAIL message at the end of the flashing process, do not worry. Just disconnect the device from the PC, close Odin, remove the battery on your device and re-insert it after 10 seconds, and repeat Steps 4-10
- Once Odin has finished flashing the TWRP recovery file, your phone will reboot automatically. Once you see the PASS! status in Odin, it is safe to disconnect your device.
- To check if TWRP has been installed properly, just reboot your phone by pressing and holding the Volume Up + Home + Power buttons together till the you see the tiny blue text at the top of the screen, then release all the buttons to let the phone boot into TWRP recovery