[Samsung Galaxy A30s Guides, News, & Discussion] KPBHacker1kk:
Installing TWRP in A30S is a little tricky thing. It's not a tricky thing, it's a big deal according to me because it took almost about 3 days to install TWRP. I had also broke my software in the middle-time. So, before starting, I want to warn you to follow my given steps step by step so you won't create a big mistake like braking device's software.

DISCLAIMER

- YOU MAY

BRAKE YOUR SOFTWARE

DURING INSTALLING TWRP. TAKE YOUR OWN RISK.

YOUR DEVICE'S DATA WILL BE ERASED

. THANK YOU..

Before staring, make sure you have downloaded or own these things..

i) A30S's original software. If you haven't downloaded it, download it from here.

ii) ODIN Flasher. Download from here.

iii) SM-A307FN Boot_Corruption_Repair (Files attached below).

iv) Magisk flashable root image (Files attached below) .

v) TWRP, download from here.

vi) Copy all these downloaded files in Desktop folder.

vii) Extract all these files in Desktop folder (Except Magisk & Corruption Repair).

viii) You need a Windows OS (Windows 7 or higher) to do this.

ix) Samsung Driver. Download from here.

counteryoursoftwareissues.blogspot.com

Let's start---->>

I) At first, you have to backup your device and unlock the bootloader (if you have already unlocked, skip to next step). Power off your device. After about 2 sec. later the device vibrate, press power and vol. down together until the screen lights up. Press the vol. up until the light goes out. Wait for few sec., do as your phone guides and your phone will be starting booting up.

II) After a successful boot, do as your phone guides. After this is done, again power off your device and press power and vol. down together as before and then again press that vol. up but not for long time, release it quickly after pressing it. It will be in 'Download Mode'.

III) Connect your device to your PC, open ODIN (which you have extracted at first) tap on 'AP' (2nd option) and then navigate to Desktop > TWRP > twrp-3.4.0-0-blue-a30s.tar, then tap on flash. It shall be started flashing and reboot your device automatically to TWRP recovery. If not, if it is booting again and again, try to go to Download Mode by first holding power and vol. down together and then connecting to your PC Connected Data-Cable as early as possible. It will in charging mode. Now follow the step II, connecting to your PC via data cable and in PC, try to flash my own created TAR file 'Corruption Repair' (this file will only work in sm-a307fn, installing in other device will break their system) by going to ODIN > Tap on 'AP' > Navigate to 'Desktop' folder > Boot_Coruption_Repair.tar > Tap on flash and follow again step II and then III.

IV) Take a Micro-SD card, insert it into your PC via 'SD Card Reader', copy and paste 'Magisk-v23.0' to 'SD Card' pick out that card and insert in your phone via 'Sim Tray'. Open 'TWRP Recovery' > Slide 'Skip to Allow Modifications' > Install > Select Storage > Micro SD Card > Open 'Magisk-v23.0' and flash it. Back to home page, tap 'Reboot' > Reboot > 'Do Not Install' and here we go, it started booting. And if it's booting again and again, go to 'Download Mode' and flash the original sm-a307fn's software. This guide is not for you.

(If you want to know how to flash software, tap here)

V) Power on your device, give it a time to boot. If it has successfully booted up, CONGRATULATIONS!!! You have just installed TWRP and Magisk. Open Magisk and Update it.

VI) After installing, open the app and check if the installed app version and latest app uploaded in their server are same. If it isn't, tap on 'Update' or 2nd 'Install' whatever, install the latest app. Then tap on 1st 'Install' (which is after the word 'Magisk') and wait for the installation. after it complete, tap on 'Reboot' to load the latest version of Magisk.

Thus, you have installed 'TWRP' and 'Magisk' with root privileges.

IF I MISSED OR WROTE SOMETHING WRONG, PLEASE REPLY ON THIS POST..

AND IF YOU LIKE THIS POST, YOU CAN ALSO REPLY..

THANK YOU..