a cooperator
Well-Known Member
Thanks a lot,TWRP is not an APP. TWRP is NOT and app. I don't know how many different ways I can say that. It's becoming clear to me that I am either failing at explaining it properly or you aren't understanding what I'm trying to tell you.
Do you understand what a "dual boot" means for PC's? Where you can run two different operating systems on the same machine? Do you understand disk partitioning? Where you can have one physical disk in a machine but several volumes that look like separate disks to the machine? And, that you can access one from the other? It's similar to that.
Yes, I understand TWRP is just a recovery environment like Android System Recovery environment.
However, I read on the Official TWRP website the following below which mentions to that I can flash the TWRP recovery image '.tar file' to my device via Odin app.
Download Links:
Current and past versions of TWRP can be found at one of the mirrors below:
TWRP Install (Requires TWRP 2.8.4 or higher already installed):
Download the latest TWRP image file (.img) from the download link and boot TWRP. Go to install and find and select the Images... button. Browse to the image that you downloaded and select it. Choose recovery and swipe to flash.
Odin Install Method (No Root Required):
You will need to download and install Odin on your PC. Once you have Odin installed, download the proper .tar file for your device from the download link above. Power off your device. Turn on your device using the proper key combo to get into download mode and attach the device to your computer via a USB cable. Use the PDA tab or button to browse to and select the tar file that you downloaded and flash the device.
However, when I tried downloading and installing the TWRP app from the Play Store, then when launching it, and once I have passed this initial screen, I was greeted with the app home screen where I can choose TWRP FLASH, Backup existing recovery, and NETWORK STATISTICS.While that TWRP app you found in the play store can make things a little easier, it's only a routine to automate what I suggested you do manually. And your phone must be rooted for that to work. What TWRP does or doesn't support is up to TWRP and the developers. Ask them about Gionee support. Could be no one wanted it, or Gionee does something to their phones that makes development harder, so they skipped it. If you want the true reason, you'll have to ask them.

Fortunately, I firstly tried backing up the existing recovery by TWRP before going ahead.
Then, on the TWRP FLASH screen I would need to select a device. Once I have selected my device which 'Samsung Galaxy Prevail2Spr, the app was checked for new TWRP versions for the device that I have selected,

After that, I downloaded the 'Twrp-26.3.0-Prevail2spr.tar' recovery image as a zip file, I unzipped it, and then select 'flash to recovery'.

After the flashing image was successfully, I tried booting to recovery mode. I tried turning off my device, and then pressing and holding the Volume Up key and the Home key, then pressing and hold the Power key. When the Samsung logo screen displays, I released only the Power key. And when the Android logo displays, I released the Volume Up and the Home key.
However, neither was Android System Recovery booted, nor was TWRP recovery booted.
Only this screen shot below of boot was shown to me.

So, does this screen shot above mean TWRP recovery is being installed(I currently do have TWRP on my phone?) How to know if the TWRP was installed/added successfully. What is the proper key combo to get into TWRP recovery mode?
I tried flashing my existing recovery backed up previously by TWRP to let my Android System Recovery boot back normally again. Thus, When I did that, the Android System Recovery booted again.

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However, anyone of you who has ever used JTAG with Samsung devices please tells me if the process would be easy and don't need a proficient technician. The process will require software maintenance since I noticed from the video some settings made. I want to educate myself by doing the thing by myself after reading guides. 




