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[Q] CM11 - cannot get past the boot screen

Hi,
First, I followed the instructions in this guide: http://forum.xda-developers.com/showthread.php?t=2507905
I installed the CWM recovery and then flashed the CM11-20131228 nightly and then the recommended Google Apps that are linked at their wiki: http://wiki.cyanogenmod.org/w/Gapps#Downloads (I took the 20131208 ones)
Now my phone is stuck in the boot screen with the circle spinning around the cyanogenmod logo (I can boot the bootloader and recovery but when I try to boot CM11 it’s stuck) and I dont know how to get to a working cm11 rom. The guide said that the first boot with a new rom takes longer than usual because the phone rebuilds caches and so on but I think it should not take more than half an hour...
What I already tried is:
- Wiping the chaches with the CWM recovery an then booting cm11 -> still just the arrow spinning around the logo
- Wiping the caches with recovery and then re-flashing the same zip without flashing the google apps afterwards -> did not work
- Wiping and then pushing the newer cm11 nightly via adb so that I could try this one -> recovery did not find the pushed zip on my scdard
- Wiping, then tried to install the new nightly via adb sideload -> cmd prompt said it was send properly and as far as I can say the phone installed it but I was still stuck on that bootscreen ...
- I even restored to the stock 4.4.2 factory image and then flashed the cwm recovery, than wiped caches and then installed the latest cm11 nightly an then the google apps but I still can not get past the boot animation
What am I doing wrong and how can I get past the boot screen?

You talk about wiping caches but are you wiping data too?

Oh, yes. I just didnt mention it. I always did the three steps from the guide:
wipe data/factory reset
wipe cache partition
advanced > wipe dalvik cache

BopItXtremeII said:
Oh, yes. I just didnt mention it. I always did the three steps from the guide:
wipe data/factory reset
wipe cache partition
advanced > wipe dalvik cache
Click to expand...
Click to collapse
So you get the bootloop only when trying to install CM and when you flashed the factory image, it booted up fine?
Sent from my Nexus 5

Exactly.
I install the factory image with method 1 from this guide: http://forum.xda-developers.com/showthread.php?t=2513701 and then flash CWM recovery to install CM (factory reset + wipe cache + wipe dalvik cache + install cm-zip + install gapps-zip) and then there is the bootloop.

BopItXtremeII said:
Exactly.
I install the factory image with method 1 from this guide: http://forum.xda-developers.com/showthread.php?t=2513701 and then flash CWM recovery to install CM (factory reset + wipe cache + wipe dalvik cache + install cm-zip + install gapps-zip) and then there is the bootloop.
Click to expand...
Click to collapse
Did you check the md5 of the cm download?

BopItXtremeII said:
Exactly.
I install the factory image with method 1 from this guide: http://forum.xda-developers.com/showthread.php?t=2513701 and then flash CWM recovery to install CM (factory reset + wipe cache + wipe dalvik cache + install cm-zip + install gapps-zip) and then there is the bootloop.
Click to expand...
Click to collapse
Sometimes formatting all of the partitions (except the sd card) works.
Sent from my Nexus 5

jd1639 said:
Did you check the md5 of the cm download?
Click to expand...
Click to collapse
The md5 sum is the same as on the download page.
PhilipTD said:
Sometimes formatting all of the partitions (except the sd card) works.
Sent from my Nexus 5
Click to expand...
Click to collapse
Which partitions? boot, cache, recovery and system? Sorry, I'm new to android... And what do I have to install on these partitions after erasing them?

BopItXtremeII said:
The md5 sum is the same as on the download page.
Which partitions? boot, cache, recovery and system? Sorry, I'm new to android... And what do I have to install on these partitions after erasing them?
Click to expand...
Click to collapse
Flash the boot.img and reboot
Then see
Sent from my LT26i using xda premium

BopItXtremeII said:
The md5 sum is the same as on the download page.
Which partitions? boot, cache, recovery and system? Sorry, I'm new to android... And what do I have to install on these partitions after erasing them?
Click to expand...
Click to collapse
Wipe system, data, dalvik, and cache

jd1639 said:
Wipe system, data, dalvik, and cache
Click to expand...
Click to collapse
^^^^^^Precisely^^^^^^
Sent from my Nexus 5

I got another problem now ... The last thing I did was flashing the stock rom. Now I want to flash the latest CM nightly (20131229) but fastboot does not let me install cwm recovery and says
Code:
FAILED <remote: partition table doesn't exist>
I flashed the whole stock rom again but the error still occurs... I have to wipe the partitions after I installed CM, right?

BopItXtremeII said:
I got another problem now ... The last thing I did was flashing the stock rom. Now I want to flash the latest CM nightly (20131229) but fastboot does not let me install cwm recovery and says
Code:
FAILED <remote: partition table doesn't exist>
I flashed the whole stock rom again but the error still occurs... I have to wipe the partitions after I installed CM, right?
Click to expand...
Click to collapse
Are you using
fastboot flash recovery recovery.img
Where recovery.img is the cwm image file

jd1639 said:
Are you using
fastboot flash recovery recovery.img
Where recovery.img is the cwm image file
Click to expand...
Click to collapse
I use this command. But I missed a c in recovery so fastboot did not find the partition named "reovery" >_< Ok, CWM is installed. Now I have to install CM11 an then wipe the 4 partitions you mentioned with cwm? Wheres the option to wipe system, I just find the other 3.

BopItXtremeII said:
I use this command. But I missed a c in recovery so fastboot did not find the partition named "reovery" >_< Ok, CWM is installed. Now I have to install CM11 an then wipe the 4 partitions you mentioned with cwm? Wheres the option to wipe system, I just find the other 3.
Click to expand...
Click to collapse
I'm cwm just do the other 3

So I installed CM + Gapps and then wiped data, cache and dalvik cache with CWM. Now Im waiting for 8 minutes for the bootscreen to go away, but think it didnt work. By the way, if I wipe the system partition, I delete CM, dont I? I dont understand how that will help booting into CM.

BopItXtremeII said:
So I installed CM + Gapps and then wiped data, cache and dalvik cache with CWM. Now Im waiting for 8 minutes for the bootscreen to go away, but think it didnt work. By the way, if I wipe the system partition, I delete CM, dont I? I dont understand how that will help booting into CM.
Click to expand...
Click to collapse
Wipe before the install.
So,
1 Put rom zip on phone internal storage
2 Wipe partitions except internal storage
3 Flash rom
4 Flash GApps
5 Reboot
Sent from my Nexus 5

BopItXtremeII said:
So I installed CM + Gapps and then wiped data, cache and dalvik cache with CWM. Now Im waiting for 8 minutes for the bootscreen to go away, but think it didnt work. By the way, if I wipe the system partition, I delete CM, dont I? I dont understand how that will help booting into CM.
Click to expand...
Click to collapse
8 minutes is too long. You have some other problem. Do any other roms work? Wiping system in twrp does not wipe the internal sd card. That's why you didn't find it in cwm.

PhilipTD said:
Wipe before the install.
So,
1 Put rom zip on phone internal storage
2 Wipe partitions except internal storage
3 Flash rom
4 Flash GApps
5 Reboot
Sent from my Nexus 5
Click to expand...
Click to collapse
Thats what I did.
jd1639 said:
8 minutes is too long. You have some other problem. Do any other roms work? Wiping system in twrp does not wipe the internal sd card. That's why you didn't find it in cwm.
Click to expand...
Click to collapse
I will try the AOKP nightly and post the results. Is it okay to just wipe data, cache and dalvik cache before installing the aokp zip or is it better to flash the stock rom before flashing aokp?

No need to flash stock, just do the wipes

[GUIDE] Flashing oreo roms on mi a1 without wiping internal storage.

Hello guys .
This is a guide to flash lineage os 15.1 or any other oreo rom on mi a1 without any fuss, bugs, wiping internal storage. And update it by dirty flashing it. I personally use this method and others have also used resulted in booting safely with zero bugs in the rom, no force closes.
So here you go :-
1- boot to twrp
2- wipe system,cache,data
3- check on which slot you are.
4- if you are on A, change to B (after wiping).
5- boot to bootloader and boot to twrp which I gave.
6- wipe slot B also. (System,cache,data)
7. Don't touch slots and boot to recovery.
8- just flash los15.1 rom from there and nothing else.
9- go to bootloader and again boot to twrp
10- flash gapps and boot to bootloader.
11- again boot to twrp which I gave and flash magisk.
12- reboot.
Enjoy. You have los 15.1 without wiping internal or downgrading to nougat or wiping internal storage.
So now here's the guide to update it. (Dirty flash)
(Remember to remove your pattern, pin, password before flashing or backing up)
1- Backup your data using twrp which I linked down below.
2- boot to twrp which I gave you.
3- wipe system,cache,data
4- check on which slot you are.
5- if you are on A, change to B (after wiping).
6- boot to bootloader and boot to twrp which I gave.
7- wipe slot B also. (System,cache,data)
8- Don't touch slots and boot to recovery which i have
linked down below .
9- just flash los15.1 rom from there and nothing else.
10- go to bootloader and again boot to twrp which I gave.
11- flash gapps and boot to bootloader.
12- again boot to my twrp and flash magisk.
12- reboot. Let it boot completely and skip the setup.
13- boot to twrp i linked down.
14-just restore your data backup and reboot.
Congo you have successfully updated your rom without wiping data and also whosoever is facing bugs like fp not working and other bugs use this method. Everything will surely work.
Anyone who has a problem can message me on telegram. Username- droidreboot
Hit the Thanks button if it helped
Have a good day.
Twrp link- https://www.androidfilehost.com/?fid=818070582850498337
*Thread Updated. Now we can use 1 recovery. It'll do all work*

It actually works and doesn't raise or gives any bugs/issues. Great work bro!

bikramsingh.97 said:
It actually works and doesn't raise or gives any bugs/issues. Great work bro!
Click to expand...
Click to collapse
Thanks ??

Nobitaa said:
Hello guys .
This is a guide to flash lineage os 15.1 or any other oreo rom on mi a1 without any fuss, bugs, wiping internal storage. And update it by dirty flashing it. I personally use this method and others have also used resulted in booting safely with zero bugs in the rom, no force closes.
So here you go :-
1- boot to twrp which I gave you.
2- wipe system,cache,data
3- check on which slot you are.
4- if you are on A, change to B (after wiping).
5- boot to bootloader and boot to twrp which I gave.
6- wipe slot B also. (System,cache,data)
7. Don't touch slots and boot to deadman's recovery.
8- just flash los15.1 rom from there and nothing else.
9- go to bootloader and again boot to twrp which I gave.
10- flash gapps and boot to bootloader.
11- again boot to twrp which I gave and flash magisk.
12- reboot.
Enjoy. You have los 15.1 without wiping internal or downgrading to nougat or wiping internal storage.
So now here's the guide to update it. (Dirty flash)
(Remember to remove your pattern, pin, password before flashing or backing up)
1- Backup your data using twrp which I linked down below.
2- boot to twrp which I gave you.
3- wipe system,cache,data
4- check on which slot you are.
5- if you are on A, change to B (after wiping).
6- boot to bootloader and boot to twrp which I gave.
7- wipe slot B also. (System,cache,data)
8- Don't touch slots and boot to deadman's recovery.
9- just flash los15.1 rom from there and nothing else.
10- go to bootloader and again boot to twrp which I gave.
11- flash gapps and boot to bootloader.
12- again boot to my twrp and flash magisk.
12- reboot. Let it boot completely and skip the setup.
13- boot to twrp i linked down.
14-just restore your data backup and reboot.
Congo you have successfully updated your rom without wiping data and also whosoever is facing bugs like fp not working and other bugs use this method. Everything will surely work.
Hit the Thanks button if it helped
Have a good day.
Twrp link- https://drive.google.com/file/d/1eM-tMUcEWx_e0iTdnXwSyOk7B1mgO1Zi/view?usp=sharing
Click to expand...
Click to collapse
after updating the latest OS, apps which are installed in before build will erased ah?

bikramsingh.97 said:
It actually works and doesn't raise or gives any bugs/issues. Great work bro!
Click to expand...
Click to collapse
dvishalkhatri said:
after updating the latest OS, apps which are installed in before build will erased ah?
Click to expand...
Click to collapse
If you're updating none of your apps or data will get erased. But if you are moving from stock oreo to this rom, it's like resetting your device. That's it. ?

not working while booting in dead man recovery 0mb internal error

Nobitaa said:
If you're updating none of your apps or data will get erased. But if you are moving from stock oreo to this rom, it's like resetting your device. That's it. ?
Click to expand...
Click to collapse
Actually at start I didn't backup the data in twrp that's y it happened

dvishalkhatri said:
Actually at start I didn't backup the data in twrp that's y it happened
Click to expand...
Click to collapse
Backup and restore backup only if you are updating. Not upgrading from stock rom to any oreo rom. ?

[email protected] said:
not working while booting in dead man recovery 0mb internal error
Click to expand...
Click to collapse
Place rom in memory card. Bug in deadman recovery

Nobitaa said:
Only update
Click to expand...
Click to collapse
While updating from previous ROM i tried to update but all apps got erased ... After i tried the data backup in TWRP then only i got my apps back...

[email protected] said:
not working while booting in dead man recovery 0mb internal error
Click to expand...
Click to collapse
Use sd card

Thanks and If I want to flash the same stock rom or other rom without wipe data do I need to wipe both system a/b slot?

now i am in big trouble my phone is not booting it's restarting and i'm not able to restore the backup while restoring backup it's showing no partition selected please help please

dvishalkhatri said:
While updating from previous ROM i tried to update but all apps got erased ... After i tried the data backup in TWRP then only i got my apps back...
Click to expand...
Click to collapse
Not possible. I'm personally using this method. I'll try making a video tutorial on this.

Nobitaa said:
Not possible. I'm personally using this method. I'll try making a video tutorial on this.
Click to expand...
Click to collapse
Ok sure...

Nobitaa said:
Not possible. I'm personally using this method. I'll try making a video tutorial on this.
Click to expand...
Click to collapse
Your tutorial says wipe data and data contain all apps!

[email protected] said:
now i am in big trouble my phone is not booting it's restarting and i'm not able to restore the backup while restoring backup it's showing no partition selected please help please
Click to expand...
Click to collapse
Message me on telegram. Username- droidreboot

samuele94 said:
Thanks and If I want to flash the same stock rom or other rom without wipe data do I need to wipe both system a/b slot?
Click to expand...
Click to collapse
You have ro to wipe data if you are changing roms. Like if you are on lineage, and you wanna install resurrection remix then you'll have to wipe system cache data in both slots. And if developer of lineage pushes an update and you're on lineage then you don't have to wipe data. I mean if updating you have to make a backup then wipe. Then after first boot restore that. Don't do this if you're changing roms. You'll get a bootloop

samuele94 said:
Your tutorial says wipe data and data contain all apps!
Click to expand...
Click to collapse
It says if you're upgrading from stock then wipe data. And if you're updating from old lineage build to new first make a backup then wipe and after first boot restore the backup. Read carefully.

Nobitaa said:
You have ro to wipe data if you are changing roms. Like if you are on lineage, and you wanna install resurrection remix then you'll have to wipe system cache data in both slots. And if developer of lineage pushes an update and you're on lineage then you don't have to wipe data. I mean if updating you have to make a backup then wipe. Then after first boot restore that. Don't do this if you're changing roms. You'll get a bootloop
Click to expand...
Click to collapse
But ,sorry, for reinstall the same rom i need to wipe both system partition (a/b) before flash?

full wipe brick? help please

Hello everyone! Need help.
I was testing some Xposed modules and then the system crashed and started no more.
I entered the twrp and made a wipe in all the options that there was to do.
The problem is that now the phone does not start any more, there is no way to get into the recovery or the room. When you turn it on, it goes straight to the recovery qualcoom screen. How should I proceed?

Sounds like you wiped system aswell...
Fastboot twrp should work.
In fastboot twrp flash twrp zip
Reboot to twrp
Flash OOS
Flash twrp
Reboot to twrp
Flash magisk
Should get you booted atleast

reflash oxygen os in twrp after wiping data and cache

matze19999 said:
reflash oxygen os in twrp after wiping data and cache
Click to expand...
Click to collapse
I can not access twrp because I've made a full cache, dalvik, system, and internal memory wipe. Only fastboot mode opens

You should can access TWRP because you didn't wipe recovery partition

https://forum.xda-developers.com/oneplus-6/how-to/tool-msmdownloadtool-v4-0-international-t3903272
Follow the instructions care full...you device will work

Thanks man <3

NO OS Found IN ONEPLUS 6

Hi Team,
Today i was flashing custom os in oneplus 6 via one youtuber videos
He has selected TWRP wipe menu
Advance -> system , data , Davic/ cache
i did same then he installed the os i also did the same and flash twrp
After doing roboot the system TWRP given me error no os was installed i ignored that message and proceed to next
After system was rebooted im only getting fastboot mode and no other options also im unable to install now any TWRP in my system
can some one help me please

Maybe try format data.
Go to wipe then advance wipe and format data.
If it doesnt work then use msmtool to go back to stock rom and start again.

Don't trust every YT videos you see, NEVER wipe system on op6 or you get this result.
Now you can reinstall TWRP from fastboot and reflash stock OOS twice, if it did not work try to flash stock fastboot firmware

here is a simple solution..
Reboot Recovery
Wipe Data, System, Cache
Flash OOS & TWRP
Reboot into recovery (Ignore No OS Installed Warning)
Flash OOS & TWRP Again
Reboot
Done
if you want to Flash Custom ROM, Here is guide
Reboot Recovery
Wipe Data, System, Cache
Flash OOS & TWRP
Reboot into recovery (Ignore No OS Installed Warning)
Flash OOS & TWRP Again
Reboot into Recovery
Flash Custom ROM & TWRP
Reboot into Recovery
Flash Gapps, Magisk Latest & No-Varity zip is had data decrypted
Reboot
Done

Hitman478™ said:
Don't trust every YT videos you see, NEVER wipe system on op6 or you get this result.
Now you can reinstall TWRP from fastboot and reflash stock OOS twice, if it did not work try to flash stock fastboot firmware
Click to expand...
Click to collapse
Any reason why we shouldn't delete system partition in op6?
Sent from my ONEPLUS A6000 using XDA Labs

Bintang Krisna said:
Any reason why we shouldn't delete system partition in op6?
Sent from my ONEPLUS A6000 using XDA Labs
Click to expand...
Click to collapse
The system also holds the recovery....i made that mistake once and i had to use MSM tool to restore my phone. Big waste of my time to a dumb mistake.

[Solved] Help to flash custom ROMs

Hello everybody,
I bought a Oneplus 7 Pro a few days ago and I'm preparing it for my daily usage. It's my fourth Android smartphone, and the third Oneplus. So far, I managed to flash everyone of them, with no major issues.
And then, the Oneplus 7 Pro suddenly appeared
I used this tutorial to unlock the bootloader and flash the custom recovery.
From my understanding, the custom recovery is flashed in the Recovery Ramdisk and available for both A & B slots.
For now, I have A and B slots with stock OSS, unlocked bootloader, custom recovery and Magisk. All of this is working.
There began my problems. I want to flash a custom ROM without Gapps and I fail to do it. All instructions around ROM threads seems different to me, I don't get the thing about A & B slots, when I flash one rom, it boots as usual on the stock ROM, if I flash both slots, It causes bootloops and if I manage to launch the recovery, my internal storage isn't detected and I can't restore any backup.
I already used MSMDownload to restore the phone completely once.
Can somebody explain to my dumb person how to do it proprely ? Thanks in advance ! :fingers-crossed:
TL;DR : I fail to flash a custom ROM and make it work.

Yes I had same issues when rooted, it means you lost root. You can try tool all in one to flash recovery and magesik via fastboot. If that doesn't restore your access, on twrp you will have to type in format, then mount, then add rom to storage(this method wipes everything beware)

djhulk2 said:
Yes I had same issues when rooted, it means you lost root. You can try tool all in one to flash recovery and magesik via fastboot. If that doesn't restore your access, on twrp you will have to type in format, then mount, then add rom to storage(this method wipes everything beware)
Click to expand...
Click to collapse
For now, my phone is working nicely. But that's the process of flashing a new ROM that fails. Recovery and Magisk are already and working.

Factory reset
Flash rom
Flash twrp installer
Reboot recovery
Format data
Reboot system
i boot all roms with these steps

WesTD said:
Factory reset
Flash rom
Flash twrp installer
Reboot recovery
Format data
Reboot system
i boot all roms with these steps
Click to expand...
Click to collapse
Thanks, I will try.
When you flash the ROM, does TWRP tell you that if you want to continue you need to reboot recovery ? If so, do you ? Do you reboot recovery on the same slot, or do you flash both ?

draentor said:
Thanks, I will try.
When you flash the ROM, does TWRP tell you that if you want to continue you need to reboot recovery ? If so, do you ? Do you reboot recovery on the same slot, or do you flash both ?
Click to expand...
Click to collapse
Nope, it doesnt tell you anything. Just reboot recovery from reboot menu. Don't touch the slot options

Thanks for your advices.
I'm trying right now, here's my steps :
- Wipe Data, Cache, Dalvik Cache (the standard Factory Reset)
- Install ROM : TWRP logs show that he's flashing on inactive slot A, then B. After that logs said " To flash additional zips, please reboot recovery to switch to the updated slot ". I'm going back on the menu
- Install TWRP Installer like previously
- Reboot Recovery : TWRP ask me if I want to install the TWRP App, I dismiss. After reboot of the recovery, it asks if I want to keep System Read Only, I swipe to allow modifications
- Wipe Data : Can't do it because TWRP is unable to mount storage. And after further investigations, I'm now on slot A, not B as before.
- Reboot recovery to slot B
- Wipe Data on slot B
- Reboot system
And It still booting on the stock Oxygen OS Rom, not the custom one installed before. I'm lost

The problem is that you are not performing factory reset.
Wipe data is not enough,you gotta go to wipe-format data-enter yes and swipe.
That is why you are getting bootloops and twrp unable to mount storage problem.
A/B is pretty simple.
You got two slots for many partitions like system vendor boot and all,but a single data partition.
Flash a rom from one slot,it always gets flashed to the other slot no matter what.So next time you reboot to recovery or system it's gonna be on the other slot.So here is the problem..one rom cannot decrypt data which was initially encrypted by another rom..so you gotta perform a data format instead of wipe.Thats it.

draentor said:
Thanks for your advices.
I'm trying right now, here's my steps :
- Wipe Data, Cache, Dalvik Cache (the standard Factory Reset)
- Install ROM : TWRP logs show that he's flashing on inactive slot A, then B. After that logs said " To flash additional zips, please reboot recovery to switch to the updated slot ". I'm going back on the menu
- Install TWRP Installer like previously
- Reboot Recovery : TWRP ask me if I want to install the TWRP App, I dismiss. After reboot of the recovery, it asks if I want to keep System Read Only, I swipe to allow modifications
- Wipe Data : Can't do it because TWRP is unable to mount storage. And after further investigations, I'm now on slot A, not B as before.
- Reboot recovery to slot B
- Wipe Data on slot B
- Reboot system
And It still booting on the stock Oxygen OS Rom, not the custom one installed before. I'm lost
Click to expand...
Click to collapse
lol i wrote all steps but you didn't do all of them. Use swipe to wipe for factory reset and you didn't format data

Joker123## said:
The problem is that you are not performing factory reset.
Wipe data is not enough,you gotta go to wipe-format data-enter yes and swipe.
That is why you are getting bootloops and twrp unable to mount storage problem.
A/B is pretty simple.
You got two slots for many partitions like system vendor boot and all,but a single data partition.
Flash a rom from one slot,it always gets flashed to the other slot no matter what.So next time you reboot to recovery or system it's gonna be on the other slot.So here is the problem..one rom cannot decrypt data which was initially encrypted by another rom..so you gotta perform a data format instead of wipe.Thats it.
Click to expand...
Click to collapse
Thanks for the explanation !
WesTD said:
lol i wrote all steps but you didn't do all of them. Use swipe to wipe for factory reset and you didn't format data
Click to expand...
Click to collapse
Well yes, I didn't understood the difference between Wipe and Format Data.
So let's resume :
Unlock Bootloader
Advanced -> Install Recovery Ramdisk : Install TWRP
Install -> Flash TWRP Installer
Install -> Flash Magisk
Reboot -> System : Reboot on stock OxygenOS Rooted
Then
Wipe -> Factory Reset : Wipe Data, Cache and Dalvik Cache, that means you just have to swipe on TWRP.
Install -> Flash ROM : Use the install function and install the ROM
Install -> Flash TWRP Installer : Don't reboot, go back and install as the previous step
Reboot -> Recovery : Reboot TWRP and it automatically load the other slot
Wipe -> Format Data : Click and type yes
Reboot -> System : Just reboot and it should load the installed ROM

is wiping internal storage compulsory?

aaryan45 said:
is wiping internal storage compulsory?
Click to expand...
Click to collapse
How would you do it ? This is an open discussion, I can't find one and only way of doing it

aaryan45 said:
is wiping internal storage compulsory?
Click to expand...
Click to collapse
Not wiping.. formatting..that is compulsory if your current data is encrypted

After multiple tries to verify the process :
Wipe -> Factory Reset + : Wipe Data, System, Cache and Dalvik Cache
Install -> Flash ROM : Use the install function and install the ROM
Install -> Flash TWRP Installer : Don't reboot, go back and install as the previous step
Reboot -> Recovery : Reboot TWRP and it automatically load the other slot
Wipe -> Format Data : Click and type yes
Reboot -> System : Just reboot and it should load the installed ROM
Install -> Magisk
Reboot -> System
Install -> Whathever you want
Reboot -> System
It worked !