yashsingh1/xdaforums huggingface dataset:
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] legiona:
Hi

I managed to get to phone to boot to fastboot

- Still nothing on the screen and cannot boot recovery or normally

Using fastboot.exe devices, I can see the device

adb.exe devices: Does not show devices

Tryed: fastboot fetch userdata localfile.bin

fastboot: error: Unable to get max-fetch-size. Device does not support fetch command.

Is there any other way to try to make backup from fastboot?

Tyed "fastboot reboot recovery"

Rebooting into recovery OKAY [ 0.010s]

Finished. Total time: 0.016s

-> No help, the phone goes to EDL mode

recovery.img= twrp-3.3.1-0-zl0.img

Tryed: "fastboot boot recovery.img"

Sending 'boot.img' (29600 KB) OKAY [ 0.975s]

Booting OKAY [ 0.382s]

Finished. Total time: 1.461s

-> No help, the phone goes to EDL mode

Tryed: "fastboot flash recovery recovery.img"

Warning: skip copying recovery image avb footer (recovery partition size: 0, recovery image size: 30310400).

Sending 'recovery' (29600 KB) OKAY [ 1.026s]

Writing 'recovery' OKAY [ 0.194s]

Finished. Total time: 1.371s

method A) fastboot reboot recovery

-> No help, the phone goes to EDL mode

method B) "fastboot reboot" and manually volume up + power to boot to recovery

-> No help, the phone goes to EDL mode

Now If I start FlashOne 2.0 (using https://mega.nz/#!hCgnQSCA!OW-Q4cyCd_2-Etm6nZRxz9M0FvvaKPpBAmJ7aknLN1o qfil.zip -> c:\qfil\main.exe)

and when I select "Common - fastboot" and hit refresh I can see the device.

Can I use in the "fastboot mode" without data loss?

What file should be given in the "Flash file"? Or can I leave it blank?

Is there someting like "le_zl0_qfil_ufs_fix.zip" I should use? Where can I get it?

Can/?should? I give give twrp-3.3.1-0-zl0.img in it? is the img format ok or do I need to zip it etc?

Is using this tool and this way my best chance to recover data (recovering data is more important than getting the phone to work normally)

Or what should I do?
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] ste73:
Yes, I have only restored it and the memory is ok, from twrp you can delete everything except otg
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] MnMchill:
That's good, less job to do.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] tsongming:
Thanks to @ F.J.V

Here are step by step instructions instructions : https://xdaforums.com/le-pro3/help/leeco-le-pro3-x720-hard-brick-t3845602/post77688748

If you own an X722 haven't sent a few dollars to [MENTION=6122705]F.J.V[/MENTION] you should for saving your bricked phone now or your future bricked phone.

Download the file and save it for posterity. Links are broken all the time.

Again, send him some beers. I have X727's . I f I can send him a few dollars X722 owners certainly should.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] MnMchill:
This guy [MENTION=7672955]tsongming[/MENTION] is too good to be true. :) I'm telling it not only because of that donation to F.J.V but because all the support and time(and now even the money) you give to this device(s) users.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] tsongming:
Thanks, but you help people just as much. So thank you too!
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] 433Mhz:
Wow, coming back to this device really highlights the input lag. The device itself is snappy but the lag is really noticable. I'm having trouble typing because the keyboard can not keep up with my thumb speed. And scrolling feels really slow. Also Lineage OS isn't as smooth as Miui 9 or 10, lots of dropped frames. Only loading times are much quicker on this device because of S820 and UFS storage.

And I came from a Redmi Pro with a crappy Helio X20.

Is there any way to reduce this input lag?
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] MnMchill:
I don't know what kind of problems you have but there is literally no input lag at all with this device, especially while typing. I can even record you a video where I'm typing if you don't believe me. Maybe you have some problems because of brick and you should do full wipe and clean install again.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] 433Mhz:
It's probably the hardware, I've noticed it before but now it is pretty clear because I just switched from a different device.

I'm getting missed key strokes and scrolling always takes a bit longer to react. In the Redmi Pro the display picture was "glued" much closer to my fingers, here it is always lagging behind a bit more.

It's not a deal breaker but this should be better on a device with 2016 high-end hardware.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] fanzex:
Can someone upload another mirror? Google Drive, DropBox, OneDrive, etc. Thanks!
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] vaneno:
Zip works nice. My 722 come to life again and comes with 0% battery . Many thanks.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] MnMchill:
[/COLOR]

Why to upload somewhere else when there is still valid link F.J.V provided?
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] fanzex:
Limited transfer.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] MnMchill:
No it's not limited, I just clicked to download it even that I don't need it but just to check for download speed and it's downloading over 8MB/s and whole zip is downloaded in 3-4 minutes.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] fanzex:
I'm in Brazil. I have only 500MB per day.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] MnMchill:
I didn't know that there is limit in some countries but I still can't reupload it before F.J.V approval because it's his work not mine. Sorry for that. Just wait until tomorrow because it's 4AM in Europe and if F.J.V approve I will upload it wherever you want.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] fanzex:
No problem. Thanks!
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] twyxcs:
nice, i got it
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] morteza0007:
Hello friends

I have a problem I do not know why the flashOne program does not work !!

Thank you for helping me.

https://pasteboard.co/HFuabSd.png

https://pasteboard.co/HFuaq43.png

https://pasteboard.co/HFuazq5.png
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] MnMchill:
It's unbeliveable how many people have bricked X722 but when there was collecting money for qfil only few of them were ready to send donation. You should all be thankfull for all the people who donated to F.J.V so he released this qfil and also should buy F.J.V a beer(if you want to) because without him you would still have bricks.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] bppjenil:
After unbrick x722, can i install TWRP with fastboot?
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] vaneno:
On pics i don't see any error. You need to press the "flash" button on down of aplicattion, and wait for flash.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] JOMARPEZ:
Fjv eres un campeon al final has hecho algo grande gracias fjv you are a champion at the end you have made something great thank you
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] MnMchill:
Yes you can. Just boot to fastboot and use adb to flash TWRP.

EDIT: Here you have guide how to do it(if you don't know) and it's under "Fastboot Install Method (No Root Required)":

https://twrp.me/leeco/leecolepro3elite.html

You also have latest TWRP 3.2.3-0 there under "Download Links" so flash that TWRP 3.2.3-0 version.

After that flash 20s firmware in TWRP and you are ready to flash custom ROMs. Firmware is here:

https://sourceforge.net/projects/lineageos-on-leeco/files/firmware/zl0/
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] morteza0007:
Hi

Thank you for your attention

I waited, but I did not see anything!
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] bppjenil:
I'll do today.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] Lethalben:
I've got this message " please don't contain blank space in the path of flashone tool"

I don't know how to resolve this, everything is OK for the port
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] morteza0007:
I have the same problem!

I'm really confused
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] MnMchill:
Membed [MENTION=2263628]Ante666[/MENTION] had the similar problem and read from this page to couple of pages forward to see how he solved it:

https://xdaforums.com/le-pro3/leeco...nt--and-mods/try-unbrick-x722-t3686191/page69
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] vaneno:
Do a temp folder on c:\ like "c:\temp" . Unzip inside the qfil.zip provided by link. And then launch the main.exe in "c:\temp\qfil\main.exe" . Some software can't work if the route or name are too long. This explain works for me.

And morteza, can you test on another PC? Because the rom works and i think its not the problem. Yesterday i test on my netbook, and allways stop on 1% , without activity and errors. I leave arround 20minutes and no work . I try some times with same results. Finally i try on my desktop and work at first trying. (Netboot has a atom with 2gb ram, and desktop its a i7 with 16gb ram).
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] 433Mhz:
Sure, but I think you should format SD card before or it'll show up as 9.7GB.

Make sure you have the right adb drivers installed, I had the usual issues with adb drivers.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] morteza0007:
Unfortunately, I do not have access to another computer.

(my pc Intel core i7 with 16gb ram)
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] jabashque:
Now, is this while your phone is plugged in? Because for some reason, the Leeco kernel sources includes code to lower the touch screen sample rate from 120Hz to 60Hz when plugged in. I'm not even sure why though, since I removed that code and my device is still fine when plugged in...
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] MnMchill:
I can't notice any lag on this device and I tried really hard after this posts from [MENTION=2148165]433Mhz[/MENTION]. I don't know if it's really low input lag or I'm blind. :)
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] Ante666:
1. I made Unbrick (Qfil).

2. Installed TWRP (twrp-3.2.3-0-zl0.img)

3. In the internal memory X722 I saved the "firmware-20S-X722-le_zl0.zip ".

4. In TWRP flash "firmware-20S-X722-le_zl0.zip ". I've been doing three times.

5. After reboot I have "EUI version 5.8.002D (Dev)".

What am I doing wrong;)? Thank...
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] 433Mhz:
You did not install any ROM, choose one from the ROM development section here and follow instructions.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] MnMchill:
After that go to Wipe section in TWRP and than go to Advanced Wipe and select Dalvik, System, Cache and Internal storage and swipe to wipe. After you wiped it go back to Install section and flash the this zip(lineage 15.1):

https://mirrorbits.lineageos.org/full/zl1/20180905/lineage-15.1-20180905-nightly-zl1-signed.zip

After that flash Pico Gapps. You can dowload it from here from here(select Platform ARM64, Android 8.1, Varian Pico):

https://opengapps.org

After that flash Magisk 17.1. You can download it from here(click on Latest stable to download it):

https://xdaforums.com/apps/magisk/official-magisk-v7-universal-systemless-t3473445

After that reboot and that's all.

You should first download those 3 files and than boot to TWRP and flash it in TWRP at once but in order I mentioned above.

---------- Post added at 06:59 PM ---------- Previous post was at 06:57 PM ----------

[MENTION=6122705]F.J.V[/MENTION] can I reupload your zip somewhere else because this guy can download from Mega only 500MB? Or if I can't can you?
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] F.J.V:
ok
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] Ante666:
That's exactly what I did yesterday.

Wiped all, uploaded 3 files (Rom, gapps, magisk) to the internal memory of the phone.

After restarting the 2 minute installation ROM. Then just go back to TWRP. Restarting again. And so on.

Now I have done yet Dalvik + Cache. and restarting. Again still the same...

Thanks for the help.

***

Picture:

1. Load rom after installation.

2. Restarts after 2 minutes.

3. Back to TWRP.

4. My files in the internal memory.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] MnMchill:
Are you sure you have TWRP 3.2.3-0 from this link?

https://eu.dl.twrp.me/zl0/

And you must wipe 4 partitions: Dalvik, System, Cache and Internal storage.

Also try to flash firmware again after flashing ROM. If your files are on internal memory and not on OTG than wipe internal memory alone and transfer files again and just wipe Dalvik, System, Cache before flashing.

---------- Post added at 08:16 PM ---------- Previous post was at 08:15 PM ----------

Ok, I will upload it tonight.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] morteza0007:
I managed to come back

Thank you all friends

Especially from @ F.J.V
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] Ante666:
Yes (100%)

Yes - wipe "Dalvik, System, Cache and Internal storage"

Something else: Yesterday you wrote that I must first install the file "firmware-20S-X722-le_zl0. zip " (45, 6MB). Only then can I install the lineage custom Rom... Today you write, let do I install "lineage-15.1 -20180905-nightly-zl1-signed. zip " (531MB). I don't understand it. I'm sorry...
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] MnMchill:
Firmware is one thing and custom ROM is the other thing. Usually you just once need to flash firmware and after that you just flash custom ROMs. I don't have your phone so I don't know what are you doing wrong but you are obviously doing something wrong because most of people managed to flash custom ROMs after unbricking and are using phone normally.

Ok, let's try it this way. After you wiped internal storage tranfer files again on it and boot to TWRP. Wipe Dalvik, System, Cache and flash Firmware, then flash ROM and then Flash Gapps and reboot your phone. Don't flash Magisk, you always can do it later.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] Ante666:
Okay I'll try this again.

Note: Image (screen from computer)-Is it OK? I have a 34GB and I have a model X722.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] MnMchill:
It's not OK, you should have 32GB(windows will show about 24GB) not 9GB. If you are still on development ROM do Factory reset and below it select to wipe SD card. After that your memory should recover. That was the problem all the time and I thought you already recovered your memory. I repeated 10 times to first recover memory and than you should proceed to flashing TWRP, Firmware, ROM and other.

---------- Post added at 09:18 PM ---------- Previous post was at 09:16 PM ----------

Here, I uploaded Qfil zip to Dropbox as you wanted:

https://www.dropbox.com/s/kjfcdkn4v7lbgyv/x722Qfil.zip?dl=0
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] D1stRU3T0R:
Try clean wipe and flash genesys 26S
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] MnMchill:
Why would he use Android 6 ROM, he should not go easy way and should learn something? Whole problem was because he didn't recovered memory even tho I mentioned it more time to do it first. I expect to everything work properly after he recover memory and do a full wipe and flash 20s firmware, Lineage 15.1 and Gapps.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] Ante666:
Master MnMchill, you're number one:)! Now I have a ROM lineage. Now Flash Magisk. Try.

CARD:

Can you please describe the path "wipe SD card "? Through TWRP? Or in the phone Menu? I don't have an SD card, but only internal memory. X722 has no card.

Now I already have lineage. Will it go, or do I need to back to the ROM "EUI version 5.8.002 D (Dev) "? Thank you very much...
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] D1stRU3T0R:
I said that he can try genesys 26S instead of 20S
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] MnMchill:
Finally. :D Glad you sorted it out.

Yes X722 only have internal memory and not SD card but in development ROM internal memory is called SD card. If you have working Lineage you don't have to go back to EUI, just boot back to TWRP and wipe Internal Storage(don't wipe dalvik, system and cache). That would make your phone not booting but just transfer files again to internal storage and factory reset, flash Lineage 15.1 and Gapps. After doing all of that check your memory, if it's still 9GB(16GB) I'm afraid you would have go back to stock ROM to wipe SD card(Internal memory) if you want all of your 32GB(24GB) to be available.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] bppjenil:
@FJV,

Thank you very much for your great job of x722 QIFL. I unbrick my phone and came back to missing forum by installing Lineage 2018/09/05.

**Bootleggers rom giving error7.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] bppjenil:
Some screen shot
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] Ante666:
Yes, I guess I'll have to go back to stock ROM.

How best to do it?

I have an idea: I will return using "FlashOne 2.0 "? (Like "Unbrick Qfil "?). Then "Wipe Internal storage" via TWRP? And then again the installation of lineage etc...
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] D1stRU3T0R:
Try to format data...
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] fanzex:
OMG!!! Thanks, man!

Thanks a lote, F.J.V!!
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] MnMchill:
Yes it would be the best for you to start from scratch. Flash Qfil again and after you boot to development ROM go and do Factory reset and necessarily select to wipe SD card. After you do that check your storage in windows and it should be about 24GB. After that flash TWRP 3.2.3-0, firmware, Lineage 15.1 and Gapps.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] Ante666:
Victory:)! Factory Reset + Wipe Internal memory. I have the correct storage size. Thank...

I repeat: now I can immediately "lineage-15.1 -20180905-nightly-zl1-signed. zip ", or I must first "firmware-20S-X722-le_zl0. zip "??? I just don't understand it... Then I want to try different ROMs. But I do not know if rom "Zl0 " or "ZL1 "??? Or I do not know-will install ROM for "X727 " (I have X722)? There is a large amount of ROM. must be marked with "Zl0 "?
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] F.J.V:
First firmware, then lineage, read the OP of the lineage thread.

Greetings.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] Ante666:
Thank you for the answer. Of course, I read a lot, but if you can't speak English, it's impossible to get oriented quickly:( A lot of procedures are not understood by language translation. You're helping a lot. I'm very fond of:).

Can you please give me a link (direct) to a thread where it is step by step everything (everything I ask) explained?

I do not understand "... read the OP ":( A direct link will help me a lot. Thank.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] MnMchill:
Now just wipe Dalvik, System and Cache in TWRP and then flash firmware, after that flash Lineage 15.1 and Pico Gapps and reboot phone and that's all.

Here you have all the ROMs for this device(s) and wherever is ZL0 or X722 mentioned in title than you can flash that ROM:

https://xdaforums.com/le-pro3/development

BTW, almost all ROMs now are compatible with both ZL1 and ZL0.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] biigdargon:
Qfil done, but in fastboot screen is black .what shoud i do
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] F.J.V:
If you have fastboot flash 20S by fastboot
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] 433Mhz:
Once you have TWRP installed correctly AND flashed the firmware file, then you can follow any ROM flashing tutorial.

It's almost always the same:

Flash ROM

Flash Gapps (sometimes it is not needed)

Flash Magisk (if you want root access)

There are plenty of tutorials in Czech, too:

https://www.newsinit.cz/instalace-custom-rom-na-android/

Ano, tvuj telefon je zl0, nevim proc ti to ukaze "x727", ti mas 100% x722 protoze x720 a x727 potrebujou jini QFIL file (sorry, my czech is very basic).

zl0 = x722

zl1 = x720
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] Ante666:
So, friends. This was my problem:

Warning: Before installing "lineage-15.1 -20180905-nightly-zl1-signed. zip " I have to do "Wipe Dalvik, System, Cache and DATA (!) ". Then the installation succeeds...
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] biigdargon:
Anybody hava adb tool and x722 usb driver to flash twrp?someone says we should format storege before flash lineage? And anybody hava Remote Control zip file
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] MnMchill:
ADB tool and USB drivers:

https://xdaforums.com/showthread.php?t=2588979

Remote control zip:

https://xdaforums.com/showpost.php?p=75834712&postcount=31
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] bppjenil:
After unbrick my storage was 9 GB but Ireset 4 to 5 times and also by playing changed language to English.

I reset by pressing vol+ and power button, try to enter recovery, but you dont go far just reset I mean selecr 'restast'.

Follow this, God will help you to get 32GB storage back.

And than install TWRP 3.2.2 via fastboot,

Flash 20s firmwarw via TWRP, rom, Pico Gaaps,

Magish if you want.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] bppjenil:
Storage
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] MnMchill:
TWRP 3.2.3-0 is the latest one, why would you flash 3.2.2-0 which is older?
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] bppjenil:
Sorry I flashed 3.2.3, mistake
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] MnMchill:
:good:

It's offtopic but where did you bought that screen protector?
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] bppjenil:
From China, AliExpress
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] bppjenil:
[MENTION=7449067]MnMchill[/MENTION]
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] MnMchill:
Do you maybe have a link? My only good screen protector broke 2 months ago and I can't find the same one so I ordered 3 different ones since then and all 3 are bad.

EDIT: I just saw your picture with tempered glass article on Aliexpress so I'll try to find it. Thank you.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] biigdargon:
How to Cut the system partiton to make a vendor partition

And if the x722 hava the Cust partition to changeover to vendor partition.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] Lethalben:
You must install a treblelized rom. It will make automatically.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] PanosCY:
Having similar problems, pls help.

After qfil phone still black and not turn on, not led, just vibrate you had similar problems? If yes how you fixed?
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] biigdargon:
To the recovery then restart to fastboot
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] PanosCY:
So after success with qfil you press volume- and power and sceen turn on?
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] tomgar:
When people want to recover the space of storage only it has to do format data afeter that TWRP has been installed.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] biigdargon:
First to the recover, when done go to the fastboot it Will show ,
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] bppjenil:
[MENTION=7672955]tsongming[/MENTION],

I installed Bootlegger 8.1 rom, really it's snappy and works good on X722.
[LeEco Le Pro3 Elite (Model x722) Guides, Developme] tomgar:
That problem is independent of qfil.

It happen every time you install an Oreo ROM and after you back another different version of Android.

For example if you install aosip and after eui your storage will be encrypted.

The problem is the TWRP in Oreo.

If you want to descrypted your memory you should do format data althought you should know your data will be remove but you do not have another option.