[TOOL] DualSix - Dual Boot for OnePlus6/6T [25.03.20]

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By ProtoDeVNan0, Senior Member on 24th March 2020, 03:14 PM
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Announcement from ProtoDeVNan0: Enjoy!
DualSix - Dual Boot for OnePlus 6!

Before You go further, keep in mind that it's mostly recommended for advanced users! And those who can calmly read instructions, preferably twice!

What does this tool do? And what are the benefits? DualSix allows You to boot two ROMs at the same time! You can flash OOS on one slot and AOSP on another or MIUI or GSI etc. How awesome is that? It also gives You as secure virtual mSD Card that will never get encrypted so Your files will be always safe!

How is this Tool different compared to Zackptg5 version for OP7 Pro? Well.. let's be honest.. he's a great Developer and his skills in making scripts and other stuff are a lot better than mine so his version of Dual Boot is definitely better but since he doesn't have OnePlus6 and 7 Pro received great feedback + people wanted me to resurrect DualSix which I made 2 months ago, I decided to finish the project and release it. It will most likely be the last "big project" for this device before 8 Pro.

Now short Q&A:
Q: Can I use on mido, raphael, x00td, vince etc?
A: No! Only use it on OnePlus6 and 6T.
Q: Can I use it with EPR?
A: No. You can't use them on top of each other.
Q: What ROMs does it support?
A: Ports (soon), AOSP ROMs and GSIs.

Known Issues
Storage Settings in ROMs might report incorrect storage size
Currently only 128GB is supported

Shared Storage is sadly only accessible by using any root explorer (/data/media/0/SharedStorage)
This directory is accessible in TWRP as Micro SD Card (keep important files there)

How to Use:


Also make sure You're not currently using EPR!

It is recommended for You to keep most important files in Shared Storage / MicroSD Card.
It won't get corrupted if something goes wrong.

If You mess up and end up without DualSix TWRP. You can also use Emergency DualSix TWRP from Emergency files!

1. Run RUN_BEFORE_DUALSIX.bat/sh in Fastboot Menu.
2. Boot into TWRP of Your choice.
3. Flash
4. Flash Dual Six for Your storage
5. Reboot into recovery
6. Format all new partitions (Data A, Data B, Shared Storage/MicroSD Card)
7. Reboot recovery again, confirm that new TWRP log shows no red error messages
8. Now follow ROM specific guide below

-------- Ports ---------
Because ports are slightly more difficult to patch
Future ports will come with separate DualSix flasher.


--- Once that happens follow ---

1. From fastboot, run flasher.
2. Most flashers auto reboot, if that happens, just boot into TWRP (even if You see boot animation))
3. Now when You're in TWRP, copy Dual Six ROM Patcher to Your MicroSD Card Storage
4. Flash Dual Six ROM Patcher
5. Done! Now reboot into the ROM and once it boots, You can root.

------- AOSP ROMs / GSIs --------
1. Flash
2. Flash dual-six-twrp-3.3.1-x_blu_spark_v9.109_op6/
3. Reboot Recovery
4. Flash Dual Six ROM Patcher
5. Flash GApps (if needed)
6. Reboot and enjoy!

Note: if AOSP ROM / GSI stays on boot animation for longer than 10 minutes, flash a

You should apply same guide for both slots.

DualSix v1.1 - Mar25

If You have any other problems, just ask here on XDA or for the fastest support PM me or ask someone in my group on Telegram
Join my group!

If You want to support this and other projects, buy me a coffee!

MounirHero - for 6T support
eng.stk - for his amazing TWRP
CosmicDan - for his sgdisk guide that helped me with EPR and DualSix
My group for motivating me to resurrect this project!
OnePlus for creating this amazing phone!

XDA:DevDB Information
DualSix - DUAL BOOT for OnePlus6 & 6T, Tool/Utility for the OnePlus 6

ProtoDeVNan0, MounirHero
Source Code:

Version Information
Status: Stable

Created 2020-03-24
Last Updated 2020-03-24
The Following 31 Users Say Thank You to ProtoDeVNan0 For This Useful Post: [ View ] Gift ProtoDeVNan0 Ad-Free
24th March 2020, 03:20 PM |#2  
ddaggebi's Avatar
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What a wonderful thing....!
Thanks Jay! Can't wait to try this out!
24th March 2020, 03:24 PM |#3  
chandu72's Avatar
Flag Bareilly
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Awesome!! Well Done Bro...

Sent from my RMX1971 using Tapatalk
24th March 2020, 03:42 PM |#4  
erad1's Avatar
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Great job Jay, hoping 64gb comes soon! One of your ports on one slot and GSI on the other would be amazing!
24th March 2020, 06:52 PM |#5  
CoHammo's Avatar
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Thanks Meter: 4
DualSix TWRP not flashing or booting, OnePlus 6T
I cannot get the dualsix twrp to flash to my device. In twrp it says device not compatible and aborts the installation. I also cannot boot the emergency twrp image from the emergency files folder in fastboot mode, when I try it boots back to the rom. I have a OnePlus 6T 128GB model. My guess is that the twrp is only for the OnePlus 6 and that's why it's aborting? But the OP mentions it working on both the 6 and the 6T. I have tried with and without running the "RUN_BEFORE_DUALSIX_WINDOWS.bat" beforehand. Not sure what to try now.

edit: nevermind, the link hadn't updated yet when I first downloaded it earlier so I did have the twrp that was only for OnePlus 6, sorry about that
24th March 2020, 07:27 PM |#6  
Sh0X31's Avatar
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Nice, will try it when I have time
25th March 2020, 05:07 AM |#7  
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This is what I thought/hoped the stupid A/B partition nonsense was going to be.

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25th March 2020, 03:29 PM |#8  
pankspoo's Avatar
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Will this wipes all. Internal storage
25th March 2020, 03:59 PM |#9  
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Can't wait to try this. Awesome work
25th March 2020, 04:52 PM |#10  
oscarmaldonado's Avatar
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Hello everyone, question, just in case if I want to revert back to stock a and b is it just MSM tool? Thanks Dev.
25th March 2020, 05:56 PM |#11  
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That's terrific ! This sounds promising !

I'll try to get OP6 OOS latest OB and Havoc OS 3.3 alongside
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