Having trouble understanding where to start

[PandaDNB]

Right, so I haven't done these types of things for years and it's safe to say I've forgotten most of it. So my question is do I root first or do I just install TWRP ?
I've chosen to go ahead with this TWRP https://forum.xda-developers.com/showthread.php?t=2678420. But it says Oreo compatible, so I am guessing I can only install an Oreo ROM ? Are there any better(newer) options available ? It is all very confusing, I've tried searching but so many versions of everything, I am not even sure which Odin I need or if it even matters ? I have the GT-I9195. Thanks in advance.

 

[Anirudh Kartik]

Right, so I haven't done these types of things for years and it's safe to say I've forgotten most of it. So my question is do I root first or do I just install TWRP ?
I've chosen to go ahead with this TWRP [url]https://forum.xda-developers.com/showthread.php?t=2678420[/URL]. But it says Oreo compatible, so I am guessing I can only install an Oreo ROM ? Are there any better(newer) options available ? It is all very confusing, I've tried searching but so many versions of everything, I am not even sure which Odin I need or if it even matters ? I have the GT-I9195. Thanks in advance.

Hey, I am going to try and help you out with this the best I can

You need to use Odin to install TWRP on your device (I'm assuming you have the stock rom currently installed).
The latest Odin should work just fine (a google search should help you find and download it)
You can download the latest version of TWRP from the official TWRP site for your device ([url]http://twrp.me[/URL])
After you download it follow these steps (taken from here because I was too lazy to write it again [url]http://forum.xda-developers.com/showthread.php?t=2449107[/URL]:

1)Turn off the phone.
2)Press and hold home, volume down and power. Download screen should appear.
3)Connect USB cable, and press volume up
4)Start Odin, uncheck "F. Reset Time" and "Auto Reboot", and then click AP button.
5)Select extracted "recovery.tar.md5" file and press Start button.
6)A blue transfer bar will appear on the device showing the recovery being transferred. Check the Message Window in Odin for: "All threads completed. (succeeded 1 / failed 0). The transfer has successfully completed.
7)Long press the power button to turn it off.
8)Hold volume up, home button and power buttons simultaneously to boot into recovery mode.

Once you get to the recovery mode you can install any Rom you want to after making full wipes (wiping data, dalvik, cache, system, internal storage (this wipe is only needed for the first time. I have Lineage Os 17.1 (Android 10) installed on my GT-I9192. On the same thread, you can find the rom for GT-I9195 too.

With respect to rooting, after you install the Rom + gapps, you can flash the latest version of Magisk to get root access. (A simple search will get you the latest version of Magisk too).
(In case you have no idea on what flashing, Rom, Gapps are, there are plenty of videos on youtube that can help you out with that.)

 

[PandaDNB]

Ookay, I actually managed. Got the Lineage 17.1 installed. To be honest the hardest part was actually installing TWRP. The phone would always replace it with stock recovery and I couldn't get it working. Tried ADB but got stuck 'waiting for device', then I found a 'All in one tool' which i used to Root my device so that I could use the TWRP Playstore app so that I could get the latest version of TWRP....Took me a bit longer than expected, even bricked the device once but managed to get it back and it's now running alright. Anyways thanks for your reply, I guess the thread can be closed now..

Hey, I am going to try and help you out with this the best I can

You need to use Odin to install TWRP on your device (I'm assuming you have the stock rom currently installed).
The latest Odin should work just fine (a google search should help you find and download it)
You can download the latest version of TWRP from the official TWRP site for your device ([url]http://twrp.me[/URL])
After you download it follow these steps (taken from here because I was too lazy to write it again [url]http://forum.xda-developers.com/showthread.php?t=2449107[/URL]:

1)Turn off the phone.
2)Press and hold home, volume down and power. Download screen should appear.
3)Connect USB cable, and press volume up
4)Start Odin, uncheck "F. Reset Time" and "Auto Reboot", and then click AP button.
5)Select extracted "recovery.tar.md5" file and press Start button.
6)A blue transfer bar will appear on the device showing the recovery being transferred. Check the Message Window in Odin for: "All threads completed. (succeeded 1 / failed 0). The transfer has successfully completed.
7)Long press the power button to turn it off.
8)Hold volume up, home button and power buttons simultaneously to boot into recovery mode.

Once you get to the recovery mode you can install any Rom you want to after making full wipes (wiping data, dalvik, cache, system, internal storage (this wipe is only needed for the first time. I have Lineage Os 17.1 (Android 10) installed on my GT-I9192. On the same thread, you can find the rom for GT-I9195 too.

With respect to rooting, after you install the Rom + gapps, you can flash the latest version of Magisk to get root access. (A simple search will get you the latest version of Magisk too).
(In case you have no idea on what flashing, Rom, Gapps are, there are plenty of videos on youtube that can help you out with that.)

 

[Anirudh Kartik]

Ookay, I actually managed. Got the Lineage 17.1 installed. To be honest the hardest part was actually installing TWRP. The phone would always replace it with stock recovery and I couldn't get it working. Tried ADB but got stuck 'waiting for device', then I found a 'All in one tool' which i used to Root my device so that I could use the TWRP Playstore app so that I could get the latest version of TWRP....Took me a bit longer than expected, even bricked the device once but managed to get it back and it's now running alright. Anyways thanks for your reply, I guess the thread can be closed now..

The trick is to immediately boot into recovery after flashing it. If you reboot the phone itself, the stock recovery overwrites itself back (useful to remember when you plan to install twrp on your next device).
Anyway, glad you managed to get it working