BEFORE YOU START. DO NOT ATTEMPT TO FLASH THIS OVER A DIFFERENT DEVS ROM - IT WILL CAUSE ISSUES. BACKUP APPS AND DO A FRESH STOCK INSTALL FIRST - that's even if you get past the failsafe ;)

 

Installation Procedure for v3.1 or newer

 

Please note when flashing the Modded Stock if you are switching from Decrypted Data to our Encrypted Data you will need to format data yes in TWRP before flashing the 420rom_F926B_###_rooting_v##.zip file. This means you will lose data

 

To install v3.1 or newer please follow the steps below

1. Remove any 420rom Modules from Magisk and reboot if you are upgrading
2. Download the Modified Stock Firmware
3. Reboot to download mode and in Odin flash the 420rom_AP_F926B_###.tar in AP slot, BL in BL slot, CP in CP slot and HOMECSC in CSC slot
4. Reboot to TWRP and disable MTP - then send 420rom_F926B rooting zip over via adb  (do not format data)                                                                          use this command "adb push 420rom_F926B_###_rooting_v##.zip /sdcard"
5. Check install screen and flash the 420rom_F926B_###_rooting_v##.zip file
6. Reboot to System from TWRP power menu
7. Install the Master Module zip in Magisk as normal and reboot.
8. Then install the Samsung or Google Edition Rom Module, in Magisk flash the zip in the following folder /sdcard/420rom/Rom_Module_Flash_In_Magisk/
9. Reboot back to System and the 420rom Rom Module will be installed
10. Install the Bluetooth lib patcher 2.4.1 in Magisk if you use a Galaxy Watch and reboot. (link to file is below)

 

Installation Procedure for v3.0

 

We have added 2 Modded Stock files one for use with Encrypted Data partition and one for use with Decrypted Data partition

If you want apps and functions like Dex to work please use the Encrypted Modded Stock

Please note when flashing the Modded Stock if you are switching from Encrypted Data to Decrypted Data or vice versa you will need to format data yes in TWRP before flashing the 420rom_F926B_BVA9_rooting_v3.0.zip file. This means you will lose data

 

To install v3.0 please follow the steps below

1. Remove any 420rom Modules from Magisk and reboot if you are upgrading
2. Download the Modified Stock Firmware version you want to use
3. Reboot to download mode and in Odin flash the 420rom_AP_F926B_BVA9.tar in AP slot, BL in BL slot, CP in CP slot and HOMECSC in CSC slot
4. Reboot to TWRP and disable MTP - then send 420rom_F926B rooting zip over via adb  (do not format data)                                                                          use this command "adb push 420rom_F926B_BVA9_rooting_v3.0.zip /sdcard"
5. Check install screen and flash the 420rom_F926B_BVA9_rooting_v3.0.zip file
6. Reboot to System from TWRP power menu
7. Install the Master Module zip in Magisk as normal and reboot.
8. Then install the Samsung or Google Edition Rom Module, in Magisk flash the zip in the following folder /sdcard/420rom/Rom_Module_Flash_In_Magisk/
9. Reboot back to System and the 420rom Rom Module will be installed
10. Install the Bluetooth lib patcher 2.4.1 in Magisk if you use a Galaxy Watch and reboot. (link to file is below)

 

 

Installation Procedure for all version before 3.0

 

Install process assuming you are on matching firmware to the released Rom and rooted

1, Flash the mother module in Magisk - reboot to TWRP

2, In TWRP, flash Module Base Convertor located in internal/420- this will apply all the modifications and debloat to your rom that i used to on the Old full size zips

3, reboot and install rom module in Magisk as normal- all done!!!

Install Process assuming you are coming from earlier 420rom:

1, Using the odin files i have provided, flash BL, Modded AP, CP and HOMECSC in Odin with AUTOREBOOT off

2, Keeping phone plugged in, hold vol down and power to exit download and immediately hold vol up and power to enter TWRP.

3, flash Multidisabler & reboot.

4, Flash the mother module in Magisk - reboot to TWRP

5, In TWRP, flash Module Base Convertor - this will install a few generic niceties seen on the module bases of old (No red text etc) and debloat a fair whack of crap out

6, reboot and install rom module in Magisk as normal- all done!!!

on a side note........................

How i patch and add TWRP to the Stock AP file - aka making stock rooted odin flashable files

Producing a stock rooted firmware is really easy and i would hope it would be part of people's standard updating process from now on & will take most people 10 mins if instructions on Xda are read through :) but I will make them nonetheless.

1, extract firmware zip so you have BL, AP, CP and HOMECSC visible (Put CSC aside)

2, copy AP to internal on phone and patch with Magisk (install -> select and patch file). Once done, copy the Modded AP file (also called magisk patched tar) that Magisk produced from /downloads on your phone's internal storage back to your firmware folder - call this one Modded AP or whatever.

3, get the latest TWRP and rename to recovery.img, drop the image into the magisk_patched.tar (delete recovery.img.lz4 if present)

4, extract the BL folder and delete vbmeta.img.lz4 in the extracted folder, pull out vbmeta.img from magisk_patched.tar and copy to the BL extracted folder - re-tar this BL folder using 7z. DO NOT REMOVE VBMETA.img from magisk_patched tar - call this one modded BL file or whatever.

5, you can now go ahead and flash Modded BL, Modded AP, CP and Homecsc in odin