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OB10 to custom roms

Hi there, can someone enlighten me how yo flash custom roms?my device already unlocked bootloader and i know how to flash cuz i play with xiaomi mi5, sams galaxy3 , sony x8.
For now i dont have a twrp. Im going twrp by fastboot before this.
Im really sure that i already go through all of the post. But seems from OB10 is really complicated.
1.ready fastboot twrp, bluspark twrp,roms, gapps and magisk( if necessary) and custom kernel
2.fastboot twrp by cmd or else
3.wipe what here? Or just factory reset and leave internal storage?
*Here i confused, do i need to wipe for both slot. Im still new to a/b partition. And do i need to do that for both slot to flash as steps 4-10 as below?
4.flash roms then bluspark twrp
5.reboot to recovery
6.flash gapps,magisk? Then twrp back?
7.reboot to twrp
8.flash custom kernel then twrp again?
9.reboot system
10. End right?
Please help me here. I cant find the real and proper steps. The only way i found is from OB7 to custom roms as they share same security patch.
Thanks for any help.

1. Flash any strock rom.zip partition A.
2. After that recovery.zip
3. Reboot back to recovery
4. Confirm you are in another slot B
5. Flash stock rom.zip. Which slot first is not important.
6. After that flash recovery.zip and then reboot.
After that you can install whatever you want.
That what I do if im switching roms and trying new stuff.
Working everytime.
Until OB7 and stable 9.0.2 I used fasboot roms, flashed via AIO tool, but new fastboot roms working different and I got laggy video and audio.

Okeh thats clear for both slot. But for OB10 to any customs rom is it needed to flash OB7?
What do you mean by stock rom?bete rom or stable rom?

slayerliar said:
Okeh thats clear for both slot. But for OB10 to any customs rom is it needed to flash OB7?
What do you mean by stock rom?bete rom or stable rom?
Click to expand...
Click to collapse
Stock any offical rom for OP6
9.0.2 or 9.0.3 or any OB3,4,5,6,7,8,9,10
If you want custom rom, look instructions, there is mentioned what is base rom. That you need flash.
If there is custom rom based OB7 then you need flash OB7(probably working lower builds also)

Thank brotha. I think they need to state which firmware do we need to start from. Otherwise it will be like me that confusing as they will patch up more and more security.

slayerliar said:
Thank brotha. I think they need to state which firmware do we need to start from. Otherwise it will be like me that confusing as they will patch up more and more security.
Click to expand...
Click to collapse
Pie ROM, pie firmware. (Except pre release betas)
Oreo ROM, Oreo firmware.
ROM - always flash latest firmware of the OS you want pie or Oreo (I always go for latest and don't have any issues . Tho I'm back to oos ,debloated now.)
Twrp - Always after ROMs, before roboot.
Gapps - after twrp and reboot, to make sure it installs to the right slot, that's why you install twrp and then reboot.. this will change your slot from A to B or from B to A. Manual switch is never necessary
Flashing gapps flashes to the slot you are in right now, so flashing before the first reboot (after twrp flash) Will get it to the wrong slot.
Magisk - if you want root. After all.
After all this you can, if you want, flash decrypt ..if you don't need your device to be encrypted,this Will give you more to think of tho.. let's just not go into this now.

i understand the process, but get confused at which file to specifically flash twice when they say
"latest firmware of the OS". So lets say the custom ROM i want to flash needs a PIE firmware 9.0.2 or higher,
what file am i supposed to flash?
9.0.2-PIE-OnePlus6Oxygen_22_OTA_027_all_1810260000_d46787d2c9-FASTBOOT.zip
or
OnePlus6Oxygen_22_OTA_027_all_1810260000_d46787d2c9.zip

Havoc Pie downgrade to Havoc Oreo doesnt work

Hey guys. Iam trying 1 week to get Havoc Oreo.
I used this https://forums.oneplus.com/threads/oxygenos-9-0-ota-for-the-oneplus-6.909533/ to get base Oreo Rom on my OP6. This works.
But when i want to flash Havoc Oreo (Havoc-OS-20180904-enchilada-Official.zip) via TWRP (twrp-installer-enchilada-3.2.2-0.zip only this Version works for me) i get a loop in fastboot.
Can someone help me pls?
My instruction:
1. Flash downgrade
2. Go fastboot, boot TWRP
3. Flash TWRP via ADB SIDELOAD
4. Restart to recovery
5. Flash Havoc Oreo via ADB SIDELOAD
6. Restart
7. Bootloop Fastboot mode
thanks for any help.

RockstarLover said:
Hey guys. Iam trying 1 week to get Havoc Oreo.
I used this https://forums.oneplus.com/threads/oxygenos-9-0-ota-for-the-oneplus-6.909533/ to get base Oreo Rom on my OP6. This works.
But when i want to flash Havoc Oreo (Havoc-OS-20180904-enchilada-Official.zip) via TWRP (twrp-installer-enchilada-3.2.2-0.zip only this Version works for me) i get a loop in fastboot.
Can someone help me pls?
My instruction:
1. Flash downgrade
2. Go fastboot, boot TWRP
3. Flash TWRP via ADB SIDELOAD
4. Restart to recovery
5. Flash Havoc Oreo via ADB SIDELOAD
6. Restart
7. Bootloop Fastboot mode
thanks for any help.
Click to expand...
Click to collapse
OK, so I am not sure what exists in the OnePlus forums but lets start with:
1. You are aware there are two sets of partitions on this device correct? If not, please read here: https://forum.xda-developers.com/oneplus-6/how-to/guide-noobs-guide-to-b-partitions-op6-t3816123
2. What are you running now?
3. You need to update your TWRP to blu_spark but I am not sure if the latest (v9.91) works with Oreo... I know that v9.86 works with Oreo for sure. Read and download from here: https://forum.xda-developers.com/oneplus-6/development/kernel-t3800965
4. Get the appropriate OOS zip file from this thread: https://forum.xda-developers.com/oneplus-6/how-to/oneplus-6-mirrors-official-oxygen-os-t3792244
Specifically OOS 5.1.11: https://www.androidfilehost.com/?fid=1322778262903980680
The basic steps should be like this (all assumes you have and unlocked bootloader):
1. If you are running OOS 5.1.11, reboot to fastboot
2. Boot blu_spark TWRP.img - fastboot boot twrp.xxx.img
3. Flash OOS 5.1.11
4. Flash blu_spark TWRP.zip to get it on both slots
5. Reboot to RECOVERY
6. Flash OOS 5.1.11
7. Flash blu_spark TWRP.zip
8. Factory reset in TWRP
9. Flash Havoc Oreo zip
10. Flash blu_spark TWRP.zip
11. Reboot to RECOVERY
12. Flash GApps
13. Flash Magisk (optional if you want root)
14. Flash no-verity if you plan to run unencrypted. (optional)
My advice is to READ READ READ before going forward with anything. The A/B partition layout is far from the traditional days of a single partition layout with a recovery partition. Educate yourself or risk bricking your device and opening up a whole different set of problems.

i do this by step by step but now iam bricked. after all it want restart but it glows only the blue led

RockstarLover said:
i do this by step by step but now iam bricked. after all it want restart but it glows only the blue led
Click to expand...
Click to collapse
It does sound like you READ READ READ before proceeding... My steps were not intended as a step-by-step guide, which is why I said the steps "should look like this". You didn't answer any of my questions, so I have no idea where you started from or where things went wrong to get you into this state...
Can you get into fastboot mode?
If so, try this thread first: https://forum.xda-developers.com/oneplus-6/how-to/rom-stock-fastboot-roms-oneplus-6-t3796665
The fastboot restore method will ONLY work if you know which OOS you were running before you got bricked...
If you can't restore from fastboot images, try this thread: https://forum.xda-developers.com/oneplus-6/how-to/tool-msmdownloadtool-v4-0-international-t3798892
I cannot stress enough, you MUST read all the steps and understand what you are doing before doing anything. If you have any questions, ASK before proceeding... Good luck.

thank u for ur help. i used the second method because the first didnt worked and now iam unbricked.
1. You are aware there are two sets of partitions on this device correct?
Click to expand...
Click to collapse
I know it
2. What are you running now?
Click to expand...
Click to collapse
Now iam running Oxygen OS 5.1.5 Android 8.1.0 and Device State is locked
Is this normal that in fastboot shows this bootloader and baseband empty ?
productname - xxx
variant -sdm ufs
bootloader version -
baseband version -
serialnumber - xxxxxxx
secure boot - yes
I want to try again to get havoc oreo. i will w8 for ur response.

RockstarLover said:
thank u for ur help. i used the second method because the first didnt worked and now iam unbricked.
I know it
Now iam running Oxygen OS 5.1.5 Android 8.1.0 and Device State is locked
Is this normal that in fastboot shows this bootloader and baseband empty ?
productname - xxx
variant -sdm ufs
bootloader version -
baseband version -
serialnumber - xxxxxxx
secure boot - yes
I want to try again to get havoc oreo. i will w8 for ur response.
Click to expand...
Click to collapse
You are back up and running, good work! Congrats!
When you say the device is 'locked', you mean the bootloader is locked again? It shows 'Locked' in fastboot? Obviously you need to unlock the bootloader again before proceeding if this is the case...
And 'Yes', it is normal for 'bootloader version' and 'baseband' to be blank. It shows the same on my device anyway, and I can flash custom ROMs with no issues, and everything works.
At this point, you should be able to follow the steps in my post, making sure you first unlock the bootloader (which will wipe all of your data). You might want to format data (not just wipe as well) to start fresh. I would also confirm that there are no issues running Havoc Oreo with encryption (I'd recommend asking the question in the Havoc OnePlus telegram channel, https://t.me/havoconeplus). After people ask to "Why are you running Oreo?!?!", you just might get an answer... I dumped being encrypted after about a week of having this device because it made moving between ROMs more difficult.
In step 14, I mention the no-verity file to remove force encryption. I have attached it to this post. Again, you may want to have /data encrypted (necessity, personal preference etc.) so this isn't mandatory but I found it made flashing different ROM's much easier (personal preference really).

do u know where u find the havoc oreo rom now ? they changed their download directory. and the overview is confusing me.

RockstarLover said:
do u know where u find the havoc oreo rom now ? they changed their download directory. and the overview is confusing me.
Click to expand...
Click to collapse
Looks like they removed Oreo builds, you might be out of luck. Check out XenonHD 8.1 thread if your set on running Oreo, was updated to Dec. Security patch.

hey brother. i have good news. i just want download again havoc oreo cause i deleted the old zip. i had thought maybe the oreo havoc zip was faulty. now i restored it with a restore tool. i tried again and now it works.
IAM ON HAVOC OREO . It starts but now i got a message.
"Android System
A vendor image mismatch has been detected. Typically this means your vendor image is out of date.Please ensure your vendor image matches OPM1.171019.011."
what is this now

RockstarLover said:
hey brother. i have good news. i just want download again havoc oreo cause i deleted the old zip. i had thought maybe the oreo havoc zip was faulty. now i restored it with a restore tool. i tried again and now it works.
IAM ON HAVOC OREO . It starts but now i got a message.
"Android System
A vendor image mismatch has been detected. Typically this means your vendor image is out of date.Please ensure your vendor image matches OPM1.171019.011."
what is this now
Click to expand...
Click to collapse
Did you flash OOS 5.1.11 on both slots? I know you said you were on OOS 5.1.5 when you did the MSM tool restore.
Unsure if the Havoc build you are running requires a certain FW. Usually the devs update the blobs on customer ROMs based on the latest releases of OOS. In this case, 5.1.11 was the last version of OOS Oreo.

i was on 5.1.5 and flashed 5.1.11 on both slots and then i flashed havoc rom

RockstarLover said:
i was on 5.1.5 and flashed 5.1.11 on both slots and then i flashed havoc rom
Click to expand...
Click to collapse
I'd recommend just going to Pie. I haven't run Havoc in over a month but the latest AEX is solid and battery life is excellent. The Pie ROMs have stabilized significantly in the last month.

i just flashed the latest havoc rom now. Really really thanks brother. ur a good boy.
have a good year

Is there a latest stock ROM I can flash instead of the custom ROM I'm using now?

I'm TWRP'd and Magisk'd running a custom ROM (Havoc}, but it's a little buggy. I'm looking to flash a stock ROM with the latest OxygenOS, and then maybe use a Magisk module over that.
Can I? And if so, can you point me to the correct custom ROM thread? I see a couple, but not sure which one is flashable, and which one is for restoring the phone to completely stock (removing TWRP, etc.).

I suggest using this: https://forum.xda-developers.com/oneplus-7-pro/how-to/rom-stock-fastboot-roms-oneplus-7-pro-t3931424
-BoneZ- said:
I see a couple, but not sure which one is flashable, and which one is for restoring the phone to completely stock (removing TWRP, etc.).
Click to expand...
Click to collapse
I don't think you can flash a stock ROM, and keep TWRP without flashing TWRP again. TWRP will always be removed when flashing a stock ROM, since recovery doesn't reside on it's own partition for this device, but rather is on boot.img, which by definition needs to be flashed with the ROM (contains the kernel).
AFAIK, you will need to flash the stock ROM then flash TWRP and Magisk again. To do that, fastboot flash the above linked stock ROM, then fastboot boot TWRP.img, then in TWRP flash TWRP installer zip and flash Magisk. Wouldn't take long to do, just have the TWRP zip and Magisk zip on the phone ready to go, before you flash the stock ROM.

redpoint73 said:
I suggest using this: https://forum.xda-developers.com/oneplus-7-pro/how-to/rom-stock-fastboot-roms-oneplus-7-pro-t3931424
I don't think you can flash a stock ROM, and keep TWRP without flashing TWRP again. TWRP will always be removed when flashing a stock ROM, since recovery doesn't reside on it's own partition for this device, but rather is on boot.img, which by definition needs to be flashed with the ROM (contains the kernel).
AFAIK, you will need to flash the stock ROM then flash TWRP and Magisk again. To do that, fastboot flash the above linked stock ROM, then fastboot boot TWRP.img, then in TWRP flash TWRP installer zip and flash Magisk. Wouldn't take long to do, just have the TWRP zip and Magisk zip on the phone ready to go, before you flash the stock ROM.
Click to expand...
Click to collapse
I want to flash havoc OS and want to know if I can go back to OOS if I download the full OTA zip and flash it like you normally would (twrp and magisk)

D.Va said:
I want to flash havoc OS and want to know if I can go back to OOS if I download the full OTA zip and flash it like you normally would (twrp and magisk)
Click to expand...
Click to collapse
I have the same question. I'm on Havoc now and unencrypted and would like to back up Havoc and go back to OOS for now due to WiFi calling not working. With out having to reflash Twrp etc

The_Keeper86 said:
I have the same question. I'm on Havoc now and unencrypted and would like to back up Havoc and go back to OOS for now due to WiFi calling not working. With out having to reflash Twrp etc
Click to expand...
Click to collapse
Anyone?

Question TWRP after updating to Android 12

Hi there,
I updated to ColorOS12 and accidentely rebooted, before flashing Magisk and TWRP.
My question is now: Can flash TWRP the ususal way WITHOUT losing my data?
Bootloader is unlocked of course.

TWRP doesn't work on Android 12 and flashing Magisk with recovery isn't supported anymore anyway.
Are you actually on ColorOS or are you calling OxygenOS ColorOS? If you're on OOS, you can get patched images here (there is a guide linked in the post too).
[DISCONTINUED][OOS & PA] OnePlus 9 stock/patched boot images
Now as we have TWRP for any A11-13 ROMs, there's no need for boot image patching, just flash magisk in TWRP. Hi! There's a great root guide here on xda by @zymphad and i thought i'd share the boot images for different OOS and Paranoid Android...
forum.xda-developers.com
If you're on ColorOS, you won't be able to use these images and will have to do the patching yourself.
Root OnePlus ColorOS 12 OxygenOS Android 12 via Magisk
In this tutorial, we will show you detailed steps to root your OnePlus device running ColorOS 12 Android 12 via Magisk Patched Boot.img file.
www.droidwin.com

I thought it's ColorOS, but now as you're asking.....
LE2113_11.C.48 is Oxygen OS, right?

nonleft said:
I thought it's ColorOS, but now as you're asking.....
LE2113_11.C.48 is Oxygen OS, right?
Click to expand...
Click to collapse
Yes it is.

Ok, but flashing the boot.img only doesn't erase my data, right?
And after there is no c.48 available in the linked thread, I have to patch it on my own I guess?!

nonleft said:
Ok, but flashing the boot.img only doesn't erase my data, right?
And after there is no c.48 available in the linked thread, I have to patch it on my own I guess?!
Click to expand...
Click to collapse
Just boot the C.47 image and direct install once it's up. As long as you don't flash it, it should work to get the device up and running with root to install.
And no, flashing the boot image doesn't wipe data.

Question Going from lineage 20 to pixel extended. What do I do about recovery?

Sorry, I couldn't find the answer. I installed lineage 20 on my one plus 9. I also installed the custom recovery required by lineage. I want to try out the pixel rom but what do I do about the custom lineage recovery? Do i use msm tools to restore it first? or can i install the unofficial twrp i saw on this forum instead or is there a stock recovery I can easily find to change it back? Thanks for any help.

gisted said:
Sorry, I couldn't find the answer. I installed lineage 20 on my one plus 9. I also installed the custom recovery required by lineage. I want to try out the pixel rom but what do I do about the custom lineage recovery? Do i use msm tools to restore it first? or can i install the unofficial twrp i saw on this forum instead or is there a stock recovery I can easily find to change it back? Thanks for any help.
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Click to collapse
I just made this same switch now back on stock waiting for 13.1 Download dtbo,vendor_boot,boot from pixel extended. Flash all 3 In fastboot. Reboot recovery wipe data sideload Pe

Thanks for the help!

gisted said:
Sorry, I couldn't find the answer. I installed lineage 20 on my one plus 9. I also installed the custom recovery required by lineage. I want to try out the pixel rom but what do I do about the custom lineage recovery? Do i use msm tools to restore it first? or can i install the unofficial twrp i saw on this forum instead or is there a stock recovery I can easily find to change it back? Thanks for any help.
Click to expand...
Click to collapse
OnePlus 9 does not have a dedicated recovery partition anymore (most modern phones don't have anymore). Instead, recovery now resides inside boot, meaning they share the same kernel. That's the reason every ROM instruction says to flash the provided boot, vendor_boot and dtbo images. Note that these 3 images are the same found in that particular ROM zip. Anyway, the point is that when you flash boot, the recovery is flashed too.
So, in your case, even if you are on LineageOS 20, and you can access LineageOS recovery, you can just go ahead and do a factory reset and flash the Pixel ROM through adb sideload. After that, boot, vendor_boot and dtbo will be automatically flashed/updated to Pixel's. But the recommended way is still to make sure you first flash those given 3 images before going to recovery and proceeding with factory reset and flashing.