ROM Flashing Sequence - OnePlus 6 Questions & Answers

I've successfully unlocked bootloader, rooted (Magisk) and installed TWRP Blu Spark on my Oneplus 6.
The next step is to flash a custom ROM, but I keep running into the instruction "Flash Rom and TWRP Installer (blu_spark)", no matter what custom ROM I'm looking at.
Is it really necessary to reflash TWRP right after the ROM, or can I skip that step since Blu Spark TWRP is already on my phone?

Borat38 said:
I've successfully unlocked bootloader, rooted (Magisk) and installed TWRP Blu Spark on my Oneplus 6.
The next step is to flash a custom ROM, but I keep running into the instruction "Flash Rom and TWRP Installer (blu_spark)", no matter what custom ROM I'm looking at.
Is it really necessary to reflash TWRP right after the ROM, or can I skip that step since Blu Spark TWRP is already on my phone?
Click to expand...
Click to collapse
You need to reflash TWRP everytime you flash a rom becuase recovery partition does not more exist and recovery is integrated in boot.img

1. Wipe everything except internal storage in TWRP.
2. Flash OOS 9.0.X in twrp and flash twrp zip
3. Now reboot to twrp and repeat step 2.
4. Now flash your rom + twrp zip and reboot to twrp.
5. Flash Gapps, magisk or any other zip you want.
You should be good now.

Apachyx said:
1. Wipe everything except internal storage in TWRP.
2. Flash OOS 9.0.X in twrp and flash twrp zip
3. Now reboot to twrp and repeat step 2.
4. Now flash your rom + twrp zip and reboot to twrp.
5. Flash Gapps, magisk or any other zip you want.
You should be good now.
Click to expand...
Click to collapse
AH! Now that's the secret sauce--flashing 2x. The guides just indicate once, which is probably why when I restart, there's no OS and I get kicked back to TWRP. Thank you sir!! :good:

Can someone explain why I have to format internal data? My guess is the encryption key is changing. And I have no pin or password when I flash.

RUNNERX said:
Can someone explain why I have to format internal data? My guess is the encryption key is changing. And I have no pin or password when I flash.
Click to expand...
Click to collapse
Your guess is correct. Encryption. It has nothing to do with FP, or code. It's Googles securety patches basically. If you don't want to format look in the decrypt guide and run in decrypted.

Related

The correct way to install OOS or Custom ROMs

Hello everyone, Ive seen this instruccions to flash oos and some custom roms
1. wipe everything except internal
2. flash oos then twrp
3. reboot TWRP
4. flash magisk
5. reboot system
my problem is that following that instruccions my phone reboot to TWRP, not system.
So i had to omit flash Magisk to boot system, My procedure is
1. wipe everything except internal
2. flash oos then twrp
3. reboot TWRP
4 reboot system, complete setup
5. flash magisk
i dont know if im doing something wrong
does it happen that to you?
PD: sorry if my english is bad
After you having installed any AOSP-based rom, and then want to go back to OOS, You may meet encryption problem.
The only way I have known is to format /data(This will delete all data stored on your phone)
Or set your screen lock method to 'none' before you flash any other rom(maybe,i have not tried it)
1. wipe everything except internal
2. flash C'ROM then twrp-installer.zip
3. reboot TWRP
4. flash Gapps & magisk
5. reboot system
SuzutsukiKaede said:
After you having installed any AOSP-based rom, and then want to go back to OOS, You may meet encryption problem.
The only way I have known is to format /data(This will delete all data stored on your phone)
Or set your screen lock method to 'none' before you flash any other rom(maybe,i have not tried it)
Click to expand...
Click to collapse
This has been fix. You can now put your phone pin code. I used latest twrp. Check your version.
i cant boot system when i flashed magisk (any version of magisk)

Oneplus 7 Pro can install updates anymore

Hello xda-comunity
I'm unable to install the oxygenos update 9.5.8 GM21BA
So I was following this guide to unlock my bootloader and root my phone with magisk.
( https://www.google.com/amp/s/www.xda-developers.com/unlock-bootloader-root-oneplus-7-pro/amp/ )
All went well. I got the notification that there is a new update (see above)
In the guide there was a step - by - step instruction on how to update the phone and keep root. I did that.
And now when try to install the update I get a bootloop into recovery. I figured out that the op7pro is a 2 slot phone ( slot a, slot b) and when I install a update it sets the for example slot b (where the update is installed) as default.
So when something goes wrong it just loads up the "previous" slot (in this example slot a) as default again and says that the update failed to install. Correct me if I'm wrong .
And now to the my problem, the phone doesn't load on slot b nor does it default back to slot a, instead I get a recovery bootloop when I'm in slot b.
The fix here is to flash twrp via fastboot and load slot a again, my phone then boots up like normal.
And here is the problem I can't install the update because I probably messed up slot b.
I know it's a long post and I appreciate every possible answer. Thanks in advance.
Wipe Data, Dalvik.
Flash the OTA, TWRP Installer.
Reboot to Recovery.
Flash the ROM, TWRP Installer again.
Reboot to Recovery.
Flash Magisk and other zips like roms or kernels
Reboot system
This will install on both slots
whatthekj said:
Wipe Data, Dalvik.
Flash the OTA, TWRP Installer.
Reboot to Recovery.
Flash the ROM, TWRP Installer again.
Reboot to Recovery.
Flash Magisk and other zips like roms or kernels
Reboot system
This will install on both slots
Click to expand...
Click to collapse
Thanks for the quick response I will try that as soon as I'm home from work. How do I find the ota? Can I download it? Or is it saves in a folder on the phone? Because I downloaded it like 3 times now.
jollyjumper2000 said:
Thanks for the quick response I will try that as soon as I'm home from work. How do I find the ota? Can I download it? Or is it saves in a folder on the phone? Because I downloaded it like 3 times now.
Click to expand...
Click to collapse
Use this thread https://forum.xda-developers.com/oneplus-7-pro/how-to/oneplus-7-pro-global-repo-oxygen-os-t3930585 and download the correct OTA for your phone. Copy it to the root of your phone then flash it in TWRP and follow the steps I gave you.
whatthekj said:
Wipe Data, Dalvik.
Flash the OTA, TWRP Installer.
Reboot to Recovery.
Flash the ROM, TWRP Installer again.
Reboot to Recovery.
Flash Magisk and other zips like roms or kernels
Reboot system
This will install on both slots
Click to expand...
Click to collapse
On step 3 do I need to flash the rom new? even tho if i keep it stock? or do you mean the ota?
jollyjumper2000 said:
On step 3 do I need to flash the rom new? even tho if i keep it stock? or do you mean the ota?
Click to expand...
Click to collapse
Sorry I worded that oddly.
If you want to keep it stock then:
Wipe Data (Optional but recommended), Dalvik.
Flash the OTA, TWRP Installer.
Reboot to Recovery.
Flash the OTA, TWRP Installer again.
Reboot to Recovery.
Flash Magisk and/or kernels (Step is optional)
Reboot system
If youre installing a custom ROM like Havoc then:
Wipe Data, Dalvik.
Flash the OTA, ROM then TWRP Installer.
Reboot to Recovery.
Flash the ROM, TWRP Installer again.
Reboot to Recovery.
Flash GApps and Magisk (Step is optional)
Reboot system
whatthekj said:
Sorry I worded that oddly.
If you want to keep it stock then:
Wipe Data (Optional but recommended), Dalvik.
Flash the OTA, TWRP Installer.
Reboot to Recovery.
Flash the OTA, TWRP Installer again.
Reboot to Recovery.
Flash Magisk and/or kernels (Step is optional)
Reboot system
If youre installing a custom ROM like Havoc then:
Wipe Data, Dalvik.
Flash the OTA, ROM then TWRP Installer.
Reboot to Recovery.
Flash the ROM, TWRP Installer again.
Reboot to Recovery.
Flash GApps and Magisk (Step is optional)
Reboot system
Click to expand...
Click to collapse
No need to say sorry i´m so greatful for your help.
thanks again
whatthekj said:
Sorry I worded that oddly.
If you want to keep it stock then:
Wipe Data (Optional but recommended), Dalvik.
Flash the OTA, TWRP Installer.
Reboot to Recovery.
Flash the OTA, TWRP Installer again.
Reboot to Recovery.
Flash Magisk and/or kernels (Step is optional)
Reboot system
If youre installing a custom ROM like Havoc then:
Wipe Data, Dalvik.
Flash the OTA, ROM then TWRP Installer.
Reboot to Recovery.
Flash the ROM, TWRP Installer again.
Reboot to Recovery.
Flash GApps and Magisk (Step is optional)
Reboot system
Click to expand...
Click to collapse
Ok so I flashed the ota and twrp installer and rebooted into recovery
but now I cant find the ota and twrp installer files in the root folder. Maybe bec I´m on slot b now?
I dont know how to flash it the second time
Can i flash it from ADB on the PC? Because i flashed it from twrp. when yes what are the commands for it?
jollyjumper2000 said:
Ok so I flashed the ota and twrp installer and rebooted into recovery
but now I cant find the ota and twrp installer files in the root folder. Maybe bec I´m on slot b now?
I dont know how to flash it the second time
Can i flash it from ADB on the PC? Because i flashed it from twrp. when yes what are the commands for it?
Click to expand...
Click to collapse
You can drag the files back into the root of your phone and flash them on the other slot. You could ADB fastboot but just dragging the zips to your phone is easier in my opinion.
whatthekj said:
You can drag the files back into the root of your phone and flash them on the other slot. You could ADB fastboot but just dragging the zips to your phone is easier in my opinion.
Click to expand...
Click to collapse
Sorry if Iam stupid but is that how it works?
I flash the zips on slot a then reboot to boot into slot b to flash it there again?
Because I dont get it, am I missing something here?
Edit: Seems like I Bootloop into recovery on slot b.
jollyjumper2000 said:
Sorry if Iam stupid but is that how it works?
I flash the zips on slot a then reboot to boot into slot b to flash it there again?
Because I dont get it, am I missing something here?
Edit: Seems like I Bootloop into recovery on slot b.
Click to expand...
Click to collapse
Yes you flash on both slots. If youve already flashed both then flash magisk and reboot to system. It should take about 10min to boot so dont worry.
Edit: If youre getting a bootloop or having bugs then follow this https://forum.xda-developers.com/oneplus-7-pro/how-to/rom-stock-f to get back to stock international
Then follow https://forum.xda-developers.com/on...nt/recovery-unofficial-twrp-recovery-t3931322 then flash Magisk and reboot
This is ONLY if you cannot get it to boot after updating
whatthekj said:
Yes you flash on both slots. If youve already flashed both then flash magisk and reboot to system. It should take about 10min to boot so dont worry.
Click to expand...
Click to collapse
Ok but how do i do that when slot b is empty?
I dont know how to put files on slot b.
When I switch slots I have to reboot.
I can only boot into system on slot a.
whatthekj said:
Yes you flash on both slots. If youve already flashed both then flash magisk and reboot to system. It should take about 10min to boot so dont worry.
Edit: If youre getting a bootloop or having bugs then follow this https://forum.xda-developers.com/oneplus-7-pro/how-to/rom-stock-f to get back to stock international
Then follow https://forum.xda-developers.com/on...nt/recovery-unofficial-twrp-recovery-t3931322 then flash Magisk and reboot
This is ONLY if you cannot get it to boot after updating
Click to expand...
Click to collapse
Your link gets me to the front page of the Oneplus 7 pro Guides, News, etc....
It should've taken you to the Fastboot thread. Look at this one instead https://forum.xda-developers.com/oneplus-7-pro/how-to/rom-stock-fastboot-roms-oneplus-7-pro-t3931424
Alright i flashed the ROM new
Was able to install the newest ota just perfect.
Kept it unrooted, I think I'm gonna let it unrooted because of all the work I have to do Everytime a new ota comes (maybe later when the phone is older)
Thank you so much for your help.

How to fresh start in Android 10?

I am on 9.5.11 at the moment. I am rooted with magisk but don't have twrp at the moment. What are the correct steps to go to full stock android 10 and then root the phone again (either with twrp or not. Doesn't matter)?
I am downloading android 10 full rom as I am writing this post.
eltarod said:
I am on 9.5.11 at the moment. I am rooted with magisk but don't have twrp at the moment. What are the correct steps to go to full stock android 10 and then root the phone again (either with twrp or not. Doesn't matter)?
I am downloading android 10 full rom as I am writing this post.
Click to expand...
Click to collapse
You can't flash twrp on Android 10. You have to have twrp while in P and then carry it over to Q.
Or flash a patched magisk boot.img then flash twrp installer in magisk manager.
Easiest is to do a local upgrade and flash twrp rentension zip and then install magisk to other slot and reboot system
After that, you can reboot into twrp and do a factory reset to have a fresh install of Q.
harpin14789 said:
You can't flash twrp on Android 10. You have to have twrp while in P and then carry it over to Q.
Or flash a patched magisk boot.img then flash twrp installer in magisk manager.
Easiest is to do a local upgrade and flash twrp rentension zip and then install magisk to other slot and reboot system
After that, you can reboot into twrp and do a factory reset to have a fresh install of Q.
Click to expand...
Click to collapse
So...
1. Install twrp
2. Flash android 10 full rom .zip
3. While still in twrp install twrp retention zip
4. Flash magisk as it is
5. Boot to system
6. Go back to twrp and then go: wipe-format data-yes
7. Restart and phone should boot up normally
8. Go back to twrp and install magisk to gain root again
Correct?
eltarod said:
So...
1. Install twrp
2. Flash android 10 full rom .zip
3. While still in twrp install twrp retention zip
4. Flash magisk as it is
5. Boot to system
6. Go back to twrp and then go: wipe-format data-yes
7. Restart and phone should boot up normally
8. Go back to twrp and install magisk to gain root again
Correct?
Click to expand...
Click to collapse
First, do u currently have twrp?
If you do then:
1. Flash the Android 10 through local upgrade
2. Then in magisk flash twrp rentension module
3. Then in magisk, click install and install it to other slot
4. Reboot system
5. After booting into system, reboot to recovery
6. Do a factory reset in twrp and reboot into system
7. Go through setup.

Can't install LineageOS

Hi
I have problems to install LineageOS on my new OnePlus6. I tried to install LineageOS with the guide on https://wiki.lineageos.org/devices/enchilada/install. If I follow the guide exactly step by step no OS is starting and I can't boot into recovery because (I think) twrp isn't installed (just black screen with blue led). But also if I first boot twrp with fastboot boot 'twrp.img' and after install the twrp.zip, no OS is starting after sideload or flash the 'lineageos.zip'. I think, the install doesn't finish correct. In the terminal on my debian I can see, that the installprocess ends at 47%. But I'm not really shure if this is the problem and if it is, how I can solve it. Probably in this thread the same problem is described: https://forum.xda-developers.com/oneplus-6/help/lineage-doesnt-boot-black-screen-light-t3958351 Unfortunately no solution is available in the thread.
Now I flashed the stockrom (https://forum.xda-developers.com/oneplus-6/how-to/rom-stock-fastboot-roms-oneplus-6-t3796665) and have done all updates but don't know how I can install twrp and after LineageOS. I hope somebody can help me. Thanks
Do you have the latest ADB version? Instead of sideloading you can try just transferring the zip files (with e.g. "adb push lineageos.zip /sdcard/") and then installing directly from TWRP.
Make sure you do all the wipes / formats mentioned in the guide. Transfer and flash the lineageos.zip. Then directly after you should flash the twrp.zip Then reboot back into recovery and flash Magisk / Gapps etc if needed. Then finally reboot to system.
Also read this guide if you haven't already as it explains a lot about how flashing ROMs on OnePlus 6 is different to many other older phones.
Hi and thank you makeyourself
I tried the following steps:
1. starting fastboot
2. fastboot boot twrp-3.3.1-2-enchilada.img -> twrp starting up
3. adb push twrp-installer-3.3.1-2-enchilada.zip /sdcard/ -> transfer ok
4. adb push lineage-16.0-20190922-nightly-enchilada-signed.zip /sdcard/ -> transfer ok
5. in twrp Wipe -> Format Data
6. in twrp Advanced Wipe -> System
7. in twrp install lineage-16.0-20190922-nightly-enchilada-signed.zip
8. in twrp install twrp-installer-3.3.1-2-enchilada.zip
9. reboot to recovery
After this steps I got the same problem as before. Before the reboot to recovery, twrp showed the message "no OS installed". So I think, the zip weren't installed correctly. Now, I have the black screen with the blue led. Can you find out what I did wrong?
Edit: Now, I can't also boot twrp. Also if I do a fastboot boot twrp-3.3.1-2-enchilada.img nothing happens.
Fastboot to twrp (newest blu spark should be fine, or black twrp)
Flash twrp zip
Reboot to twrp
Wipe data, cache.
Flash recommended oos
Flash twrp
Reboot to twrp
Flash recommended twrp (yes...... Again)
Flash twrp (yes... Again, recovery is lost after rom Flash ALWAYS)
Reboot to twrp
Flash LOS or any other custom rom
Flash twrp (rom Flash, so twrp is lost like I said)
Reboot to twrp
Flash magisk (IF ypu want magisk)
Flash gapps (IF ypu want gapps)
Flash kernel (IF I like to run another custom kernel)
Boot
Enjoy
Thank you whizeguy, I'll try this. But just one question about "Flash recommended oos". Which OxygenOS can I flash (this full OTA? https://www.xda-developers.com/oneplus-6-oneplus-6t-oxygenos-9014-906/) and why I have to do this? Sorry if it is a bad question.
You Flash The oxygen OS version that is recommended in Los thread, simple as that.
You have an a/b device, vendor partition (could be other files needed aswell, not 100 % sure) is needed to Flash custom, IF you did Amy research you'd finns some good info. Also for faster answers in The future: post your issue in the thread for LOS, that way you would get help from People Who uses it, knows The exact version you should use and what not
Hey whizeguy, thank you very much. Everything works perfect now. But why for heaven's sake do I have to flash oos and why the guide on the LineageOS site don't tell me this way?
Wow idk what happened here. Mistakenly replied to this thread. Apologies.

Android 10 & Custom ROM & Slot A + B

Hello Android developers and enthusiasts,
I've been installing ROM since 2011 so I would not call myself a n00b however I seemingly cannot install an Android 10 ROM without issues. So this is a plea for help and advice!
I know you need to have OOS installed before you install a custom ROM so I use Auto Flash ROM to install OOS with Android 9 via System Update. I then boot and set up phone, install update, reboot and then install the OOS android 10 via the System Update. I then have a OOS installed with Android 10.
Why would I use such an elaborate method you may ask? Well, I tried to download latest OOS from OnePlus site and wipe phone and then install OOS but that fails (didn't record the error I'm afraid).
I then download all the ROM + dependencies on an USB stick and use fastboot to flash Mauronofrio TWRP. I then follow the steps in the ROM instructions. For EvolutionX these were:
First Time Install / Clean Flash
- Have OOS 10.3 flashed to both slots!!
- Boot to recovery
- Flash BUILD.zip (TWRP built-in)
- Wipe Cache
- Format data
- Reboot to recovery (optional)
- Flash Magisk.zip (optional)
- Reboot to system & #KeepEvolving
Click to expand...
Click to collapse
I followed these to the letter but when i rebooted system I got a snapdragon error and it wouldn't even boot into TWRP until I used fastboot to flash boot into TWRP. I also tried HavocROM and same happened.
I did manage to install Syberia using above method but I didn't like the ROM that much unfortunately.
Finally, I've also read up a lot on Slot A and B but it still is not very clear to me. I think I understand it but what happens does not confirm my theories
I therefore have some questions:
- Should I be able to wipe my phone and install OOS on a wiped phone and then install a custom ROM?
- When I install ROM and it says "Reboot Recovery" and then install ROM again. But if I check what slot is being used the reboot doesn't seem to change the slot. My assumption was that booting recovery was to install ROM in the other slot. Is that correct?
Any other tips you can give me?
Again, I like to stress I am not new to installing custom ROMs so I am a bit disappointed that this is causing me such grief.
Following some answers I will retry tomorrow so I can give some more details if needed. For now, appreciate any help.
roel1976 said:
Hello Android developers and enthusiasts,
I've been installing ROM since 2011 so I would not call myself a n00b however I seemingly cannot install an Android 10 ROM without issues. So this is a plea for help and advice!
I know you need to have OOS installed before you install a custom ROM so I use Auto Flash ROM to install OOS with Android 9 via System Update. I then boot and set up phone, install update, reboot and then install the OOS android 10 via the System Update. I then have a OOS installed with Android 10.
Why would I use such an elaborate method you may ask? Well, I tried to download latest OOS from OnePlus site and wipe phone and then install OOS but that fails (didn't record the error I'm afraid).
I then download all the ROM + dependencies on an USB stick and use fastboot to flash Mauronofrio TWRP. I then follow the steps in the ROM instructions. For EvolutionX these were:
I followed these to the letter but when i rebooted system I got a snapdragon error and it wouldn't even boot into TWRP until I used fastboot to flash boot into TWRP. I also tried HavocROM and same happened.
I did manage to install Syberia using above method but I didn't like the ROM that much unfortunately.
Finally, I've also read up a lot on Slot A and B but it still is not very clear to me. I think I understand it but what happens does not confirm my theories
I therefore have some questions:
- Should I be able to wipe my phone and install OOS on a wiped phone and then install a custom ROM?
- When I install ROM and it says "Reboot Recovery" and then install ROM again. But if I check what slot is being used the reboot doesn't seem to change the slot. My assumption was that booting recovery was to install ROM in the other slot. Is that correct?
Any other tips you can give me?
Again, I like to stress I am not new to installing custom ROMs so I am a bit disappointed that this is causing me such grief.
Following some answers I will retry tomorrow so I can give some more details if needed. For now, appreciate any help.
Click to expand...
Click to collapse
Hi!
I had this exact same problem a couple months ago. Rebooting to recovery used to change slots for me, but then it stopped.
What you can do is change active slot manually on Reboot section. By doing this, you don't even have to reboot to recovery in other to flash the other slot (altough I do it just to be safe).
And remember: the rom is flashed on the inactive slot, so after the final flash you gotta change slots one more time.
When you flash one ROM on top of another different ROM, particularly OOS to custom, always wipe data and not format data, because some custom ROMs do not support being unencrypted in the first time and then encrypt on the first boot. So do it like this:
Flash OOS
Flash TWRP
Reboot recovery
Flash OOS
Flash TWRP
Reboot system
Complete initial setup
Reboot to recovery
Wipe (not format) data
Flash custom ROM (start here for dirty flashing ROM update)
Flash TWRP
Reboot recovery
Flash custom ROM
Flash TWRP
Reboot recovery
Flash Magisk
Reboot system
I don't like built-in TWRP in custom ROMs. I always use @mauronofrio's TWRP. So regardless if the custom ROM I'm using has TWRP built-in or not, I always use the method above. I didn't have a problem with installing ROMs using his TWRP. Slots always switch when flashing ROM.
Thanks for the info, it really helps.
One question: in your experience can you wipe your phone and then installl OOS on the wiped phone?
So I just booted into TWRP, did standard wipe action: Data, Cache, and Dalvik. I then try to flash the latest OOS zip and I then get this error:
Error applying update: 7 (ErrorCode::kInstallDeviceOpenError)
Updater process ended withL ERROR: 1.
Error installing zip file: '/usbstorage/00, INSTALL/OnePlus6Oxygen_22_OTA_044_all_2002220042_a46425f1bfe43d2.zip
FIXED: I was using TWRP 3.3.1.11 and I then found out there was a newer version: 3.3.1.18 which you can get here: https://sourceforge.net/projects/mauronofrio-twrp/files/Enchilada/
I am now able to install OOS from scratch (ie wiped phone).
remewer said:
When you flash one ROM on top of another different ROM, particularly OOS to custom, always wipe data and not format data, because some custom ROMs do not support being unencrypted in the first time and then encrypt on the first boot. So do it like this:
Flash OOS
Flash TWRP
Reboot recovery
Flash OOS
Flash TWRP
Reboot system
Complete initial setup
Reboot to recovery
Wipe (not format) data
Flash custom ROM (start here for dirty flashing ROM update)
Flash TWRP
Reboot recovery
Flash custom ROM
Flash TWRP
Reboot recovery
Flash Magisk
Reboot system
I don't like built-in TWRP in custom ROMs. I always use @mauronofrio's TWRP. So regardless if the custom ROM I'm using has TWRP built-in or not, I always use the method above. I didn't have a problem with installing ROMs using his TWRP. Slots always switch when flashing ROM.
Click to expand...
Click to collapse
I tried this method and everytime I can't seem to flash oos onto the other slot because when it reboots to recovery the folder is encrypted so I can't see which file is the zip. How do I flash the seccond OOS if it shows up encrypted in TWRP.
I have a OnePLus 6 with the latest OOS now because I got into boot loop and i used a flash-all.bat to get back to stock. I also use maronofrio's twrp because that works.
harshybar said:
I tried this method and everytime I can't seem to flash oos onto the other slot because when it reboots to recovery the folder is encrypted so I can't see which file is the zip. How do I flash the seccond OOS if it shows up encrypted in TWRP.
I have a OnePLus 6 with the latest OOS now because I got into boot loop and i used a flash-all.bat to get back to stock. I also use maronofrio's twrp because that works.
Click to expand...
Click to collapse
If you can boot OOS fine, try to do a local update so that both slots have OOS. Then try to flash a custom ROM again using the method I've mentioned.
remewer said:
If you can boot OOS fine, try to do a local update so that both slots have OOS. Then try to flash a custom ROM again using the method I've mentioned.
Click to expand...
Click to collapse
When you say local update you mean while I am running the rom, go to settings then do update from local source?
harshybar said:
When you say local update you mean while I am running the rom, go to settings then do update from local source?
Click to expand...
Click to collapse
Exactly
GuestD2559 said:
When you flash one ROM on top of another different ROM, particularly OOS to custom, always wipe data and not format data, because some custom ROMs do not support being unencrypted in the first time and then encrypt on the first boot. So do it like this:
Flash OOS
Flash TWRP
Reboot recovery
Flash OOS
Flash TWRP
Reboot system
Complete initial setup
Reboot to recovery
Wipe (not format) data
Flash custom ROM (start here for dirty flashing ROM update)
Flash TWRP
Reboot recovery
Flash custom ROM
Flash TWRP
Reboot recovery
Flash Magisk
Reboot system
I don't like built-in TWRP in custom ROMs. I always use @mauronofrio's TWRP. So regardless if the custom ROM I'm using has TWRP built-in or not, I always use the method above. I didn't have a problem with installing ROMs using his TWRP. Slots always switch when flashing ROM.
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@Cypher_01, Try this guide. This worked for me. I did not reinstall Nikgapps. Maybe that's where the problem lies? Don't forget to change the update slot at the end before you restart.​

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