yashsingh1/xdaforums huggingface dataset:
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] bmac6996:
Just a quick run down on what worked for me for my x727:

-TWRP recover to 19s

-format data / factory reset (just in case)

-boot into stock os.

-drop into fastboot mode

-flash modem back to 19s

-reflash aboot and xbl (the 20s files) to re-lock bootloader. fastboot reboot bootloader back in to verify.

-i rebooted into stock recovery and cleared data just in case.

You know if it all worked if you can download the 21s update, let it reboot and attempt to install it.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] ojramirezj:
Please Help me

the procedure worked to install the TWRP, but I can not make the phone look on the PC and I have the MTP enabled, please help, I have no operating system
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] osmingab85:
Bro, but you recognize the pc your phone you will have to do it with an external memory .. those you can find in any side so you can do the installation of the system that you want ... But there is always solution for that bro ... Luck

Note. I am using a translator....:D
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] bayrtxxx:
X727 brick after bootloader unlock

Help me please...!!!! I was trying to unblock the bootloader but my cell died and does not react, it does not go into fastboot mode or do anything, my PC detects it as Qualcomm HS-USB QDLoader 9008 but nothing else. The mistake I made was to turn off the cell phone when it was in fastboot mode and from there it no longer works. Someone who can guide me please, please, please. I am trying flash qfıll service rom but don't work. Help me please..!!!!

PD: Excuse me for my bad english
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] mdkathon:
This worked like a charm. Thanks! Just follow direction I patched to 21S before knowing of the issues with unlocking bootloader. This ... just ... worked. Read twice and do it!
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] lazydognet:
Okay, I probably have a dumb question here, but in wpbear's post about updating the bootloader for Pro3 phones on 21S, I read the following line:

Put twrp.img from this zip (Download: TWRP) in your adb directory on your PC

When I download the TWRP from this link, I get a file called "twrp_zl1_recovery.img"....not a zip file.

So I assume I'm just using the "twrp_zl1_recovery.img" file itself (using that name instead of "twrp.img" or renaming the to "twrp.img" and then continue following the directions).

Is that correct?

Also, I've read a lot of posts about people having issues unlocking the bootloader when they were on the US version of the ROM. Is that something I need to worry about here and is it easy to confirm what version I have on my phone?

LDN
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] Rapalax:
Evlo,

Did

> fastboot flashing unlock_critical

Work on the x722 ?
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] evlo:
Not on 26s
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] Ab20000:
use flashone 2.0 method

just google flashone restore for this phone
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] stormsong76:
Can not boot TWRP when hold power and volume+.

Can not boot TWRP when hold power and volume+. It only shows "upgrade system or clear the data". Have tried multiple times.

I did not insert SIM card. Does this matter?
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] threejs30:
Method works on latest firmware confirmed (changes too end of guide)!!!

Received device on Tuesday, had latest firmware and is x727 us version. Ordered from amazon and was a little disappointed was really wanting dual sim option and us variant doesn't have. I have lemax 2 that does have dual sim so I thought pro 3 would, anyway followed guide all good until transferring rom/gapps to device in recovery using MTP as windows 10 cold not load properly. So copied rom/gapps to platform tools folder and used adb side load commands instead. Worked flawlessly. 100% working unlocked bootloader, correct modem, running darkobas omni rom with majisk and recovery a OK as well. I did download SDK platform tools lite version prior to anything else.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] MiniMax9:
X727 can be forced to accept Custom ROMs

Indeed, it works! After I had softbricked my brand new Le Pro 3 / LEX727 / le_zl1_oversea with 5.8.021S dated 01 25 2017 I nearly had it dumped into the garbage bin. Especially as I found several comments on this topic that unisono said, nogo, the locked bootloader prevents each and every modification of this specific device.

But no: Carefully downloading exactly the given files and sticking to the steps of the poster I "saved" my phone in minutes. I am now on LineageOS 14.1 with Google Play and root with MAGISK.

It really works!!
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] rishj09:
I am trying to follow this guide but I ran into a roadblock. My phone is currently running the 18s version. Going to software update and checking for update does not work and the phone says that I am not on the latest version. Does anyone have a link to a US version of a newer version (19 or 21). The links that I found online dont mention if it is the US version or not and I do not want to risk losing the ability to unlock the bootloader.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] jnb123:
Are you running the US 18s version? Just follow the guide in Post #203 (https://xdaforums.com/showpost.php?p=71566961&postcount=203) . Works perfectly fine on 18s, no need to update to 19s+. The only problem I then had is that I had modem/network issues on Lineage OS. If that happens to you just do what I described in the Lineage ROM thread -- download & flash the 19s modem + erase modemst1 and modemst2 and you are good.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] easyxpress:
Latest Stock Rom or Is Lineage OS now working flawlessly?

I got the Le Pro 3 (x727) device few days ago. The Le Service is now all shut down. There will be NO upgrade or support from the Le company anymore, as Le is not doing well.

I think there is the stock rom of 7.1.x available. Can anyone point me to the download link?

Or, I am thinking to flash the device to Lineage OS CM 14.x or something. Just curious to know is Lineage version working out well for the device?

Thanks in advance for your reply.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] rishj09:
Oh ok. I was unaware about that. I manually updated the rom to the 21s version and followed that. I am using resurrection remix right now and I dont have any issues.

---------- Post added at 12:41 PM ---------- Previous post was at 12:36 PM ----------

I am not using Lineage but am running Resurrection Remix. It is working well and I have not run into any bugs yet.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] Dead Pool Brasil:
[/COLOR]

After many difficulties, I finally managed to unlock the bootloader of Le Pro 3 X727 (EUI 8.021) through this tutorial, thank you !!!
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] landson:
Thanks for the instruction. It works. A little problem need help.

Successfully installed TWRP, however, I can't see the phone file structure in windows file explorer even enabled MTP in the setting. My computer detect it as "unspecified device" , ADB could work, also updated newer TWRP 3.1.10. Still same. Can you help me ?
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] rafaelsartori:
Hello landson, did you manage to solve the problem? i cant see my device in windows, no matter if im on twrp or with the android system up.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] landson:
No, I could not make it to show on my computer. Also, I accidentally wipe my system file. then stuck at TWRP mode. So, I went ahead get a Type C USB OTG from amazon, then successfully flashed new ROM and GAPP. Now, my phone back to normal. Works great again. Not sure why it does show up in windows before. Now,It works with my computer when I set my phone in file transfer mode.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] ultimategamer8x:
The instructions on page 21 say that I have to have the gapps zip and the rom zip ready to flash after unlocking the bootloader and flashing twrp. What if I just want to unlock the bootloader, install twrp, and root my phone but stay on the stock 5.8.0.21s? I don't want to install a custom rom as of now since I have read the battery life is not that good on them. Please advise.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] rishj09:
If the adb works with the device in recovery, you can try using adb sideload.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] rafaelsartori:
i fixed it using the twrp format data (not wipe data), doing that i lose my data, but i removed the encriptation. after that i can use mtp on twrp and on system.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] rootnooby:
Same issue. Tried to boot to TWRP but didn't work holding power and volume up. Two options, either need to check Update System, or Clear Data. There is a Start and a Restart buttom on the bottom. Anyone else getting this? Not sure what to do next.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] giveituplouie:
Same issue not being able to boot into TWRP by holding power and volume buttons. I can still see it in Fastboot but not Recovery and it only reboots to the password screen.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] rootnooby:
This is what worked for me.

Get into fastboot with power and volume down key

Connect cable

Open command prompt window in admin

Type fastboot flash recovery twrp-3.1.1-0-zl1.img

Type fastboot boot twrp-3.1.1-0-zl1.img

The img file is the name of the one I used. If you used a different, then type that name.

This got me into TWRP.

I did this all after I downloaded basic Android sdk tools.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] kukuteku:
Sorry bt I have a Question....

I bougth a Pro3 X727 and should arrive around Nov. 20th... Just reading about root, recovery Etc. and I want to Know if this method its better or equal to *LeEco AIO Toolkit* from Rishabh Rao´s post????

Thank.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] giveituplouie:
Thanks - that worked...

However when I get into TWRP the computer is not seeing the phone so I can wipe and add a ROM?????

Quote:

Originally Posted by wpbear

This works on lastest USA update Stock (21s).

Have ADB/Fasboot tools on your computer

Make sure you have enabled the developer tools, turned on USB debugging, and authorized your computer on your device

Put emmc_appsboot.mbn from this zip (Download: x727-5.8.019s_bootloader-unlock.zip) in your adb directory on yoru PC

Put twrp.img from this zip (Download: TWRP) in your adb directory on yoru PC

On PC open admin CMD prompt

go into fastboot mode on phone (hold power and VOL -)

on PC type:

adb devices

fastboot flash aboot emmc_appsboot.mbn

after flash force reboot using Power button. It will ask for a password, just ignore it and reboot back to fastboot by forcing power down then reboot to fastboot (hold power and VOL -)

on PC type:

adb devices

fastboot oem unlock-go

fastboot flash recovery twrp.img

boot into twrp (force power down, then hold POWER and VOL +)

Should I do this and then be able to see it in File Explorer?

TWRP will boot, choose modify system. Choose wipe - then swipe to factory reset, when that is done - then advacned then format data

In TWRP ensure MTP is enabled. In Windows File Explorer the phone should be visibile. Drag and Drop your new ROM.zip, gapps.zip, SU.zip etc...

In TWRP INSTALL new ROM and other zips; choose wipe/dalvik/cache

Reboot System.

DONE!
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] rootnooby:
That happened to me as well. My windows 10 pc would not recognize the phone. I put the rom on a thumb drive and connected to the phone with an otg cable. Installed the rom from the thumb drive. Twrp had no problem recognizing the thumb drive and the install worked well.

Now, my PC recognizes the phone with no issue. Not sure why it didn't recognize it initially.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] kukuteku:
Please, which method its better to unlock bootloader \ Root \ CRecovery.... This or the *LeEco AIO Toolkit* from Rishabh Rao's way
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] tsongming:
Root LeEco Pro 3: using TWRP and SuperSU

Yes, you can do this and in my opinion, with the exception of not getting any updates past 5.8.0.21s the stock rom is pretty great....for now!

Here is a link for step by step instructions : ( not sure if it will post) :https://geekaxe.com/root-leeco-le-pro-3-using-twrp-supersu/

Note: Research exactly how to do this!

Then create your own set of steps before proceeding: See abridged steps below

Basically, You use TWRP and Super SU

Make full backup of your phone

check OEM unlocking in developer mode

activate USB debugging

install ADB and drivers

The steps are here on XDA. But they may be out of date.

If the link above doesn't work. I would just Google the complete instructions, setting the google search criteria set for past month. This way you are using most recent copies of the needed files.

Good Luck
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] xBane_:
Will this Zip work on 5.8.021s without bricking my device?
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] xBane_:
I'm going to ask again, because my X727 on 21s is coming in Thursday and I really want to know.

Does this work on 21s?
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] Wellington veras:
21s https://xdaforums.com/le-pro3/development/x727-model-persistent-bootloader-unlock-t3500388/page21
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] xBane_:
"After flash force reboot using power button"

power + volume down? or just press and hold the power button?
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] xBane_:
In TWRP my phone won't show itself to my computer. MTP is enabled. It's recognized in ADB, and i tried to move the files via adb (adb push AOSPAzl1.zip /sdcard/TWRP) but all that does is put thousands of spaces into my command prompt and nothing else.

EDIT: Just tried to use a USB-C to micro USB adapter connected to a micro USB OTG adapter, connected to a flash drive with the zips i want to flash, and it didn't work.

EDIT 2: Booted back into EUI to have a working phone, phone is recognized when I plug it into my computer, and i can transfer files. (Cannot transfer files in TWRP, still)

EDIT 3: Through some heavy coaxing in TWRP through adb (spaming 'adb push _____.zip /sdcard/) I was able to get AOSPA 7.3.1 and micro GAPPS on my pro3. I haven't tested if file transfer works yet, but that's on my list for when I get home today.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] mchlbenner:
This work as it said it would work it took some time.

If you are having flashing issues like will not flash reboot and go back to developer settings and undo and redo the OEM unlock bootloader .

That did the trick for me.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] shortychance12:
leeco le pro 3 x727

cant update to 19s and it worked on my last leeco le pro 3.. it fails every time....any solutions ?????
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] mchlbenner:
I will take you already did check in allow OEM unlocking.

Try this undo the check in the OEM then recheck the OEM allow unlocking.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] shortychance12:
it even fails a factory updates
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] mchlbenner:
Try a factory reset.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] shortychance12:
nope second time ive tried that about ready to sell than piece of ****

---------- Post added at 01:58 AM ---------- Previous post was at 01:41 AM ----------

the phone somehow corrupts a file..cause before i tried updating i could access the file and after it failed again it said corrupt file..so idk wat hell
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] vietkangta:
can someone help i cant get past the step

fastboot flash aboot emmc_appsboot.mbn

error: cannot load 'emmc_appsboot.mbn'

I have it in the right adb folder i believe as i have only 1 and it still won't load.

running .21s

---------- Post added at 08:15 AM ---------- Previous post was at 07:57 AM ----------

same issue here. i have it in the right folder but till getting that error.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] tsongming:
You need to give your adb system wide permissions. Google= adb systemwide steps.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] vietkangta:
did you ever get the buttons hold power and volume+ to ever get into twrp?
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] synecio:
Is it possible to instead use the alternative TWRP image twrp-3.1.1-0-zl1.img provided by TEAMWIN? If the one from TEAMWIN does not work is it possible to repeat the steps and use the twrp.img you suggested with minor repercussions?

Thank you.

UPDATE: I was able to use the procedure by wpbear, but with twrp-3.1.1-0-zl1.img provided by TEAMWIN. I now have the latest LineageOS build. I'm sure this was an obviously easy change to wpbears instructions, but just wanted to make sure.

The phone I used was the X727 model running the latest 21s when the procedure was done.

Thank you dr4stic and wpbear
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] messerchmidt:
worked on the phone i got off amazon. thanks!
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] meh4life321:
Just to clarify, the method on post 203 works on 18s right?
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] mchlbenner:
Can't promise it will you can manually update with stock recovery

I would update to 21s
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] meh4life321:
alright, thx!

---------- Post added at 04:08 PM ---------- Previous post was at 03:38 PM ----------

But do you think I could try that method without updating? Will it have any disastrous results? I'm just flashing the bootloader right?
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] meh4life321:
Do you remember what version of eui you were on before doing that by any chance? thx
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] mimicthis:
Just rooted my phone from Amazon with the 18s rom. Had to use the route described for 21s users on post 251. Make sure to follow it by the T. Also recommend finding the newest twrp img and flashing SuperSU to root otherwise the twrp recovery will be replaced.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] Redhawk2000:
Realize lineage says you have to be on a certain firmware supposedly to work. I think 20s. Not sure if the firmware is different from 18 to 20s.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] blushrts:
Thank you very much, I had the same issue not being able to get into twrp with the power and volume up. This got me in to flash a new rom.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] meh4life321:
Really?? I thought you didn't have to root to keep recovery. I really want to keep snapchat but that won't work with root. I plan on flashing the AICP 8.1 rom. My Pro 3 has arrived today, can't wait to try *fingers crossed*
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] mchlbenner:
Once you flash a ROM you don't have to reroot it and Recovery stay.

Read the process before doing anything.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] lazydognet:
Instead of using flashing the SU.zip (SuperUser Root file) during this process, can you flash the MAGISK.zip in place of it?

Thanks,

LDN
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] mchlbenner:
Yes
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] fc528e:
wpbear's instructions saved my butt! Thanks!
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] OPLEX:
Details Soultions

Okey Read Carefully !

(I found the Original article and steps on another site written in German) (Same steps,but cool to check out)

Link to the Original article (Supposedly)

android-hilfe.de/forum/leeco-le-3-pro-x720.2878/le-pro-3-x727-gebricked.851367.html

Now, you see for this operation there is 2 steps;

A-Re-flashing an older bootloader by forceing the current locked bootloader we got with the command "fastboot flash aboot blablabla.img"

B-Unlocking the bootloader that you have installed or flashed from step A

Probably most of are stuck with the A step and specifically with the SIZE ISSUE we are getting when trying to force the flash as listed below:

target reported max download size of 536870912 bytes

sending 'aboot' (1750 KB)...

OKAY [ 0.087s]

writing 'aboot'...

FAILED (remote: size too large)

finished. total time: 0.114s

Solution:

But if you read carefully in the steps It indicates to take a file name emmc_appsboot.mbn out of the Zip file and then Flash it and the operation will work and then you can go to Sleep ! :)

target reported max download size of 536870912 bytes

sending 'aboot' (787 KB)...

OKAY [ 0.057s]

writing 'aboot'...

OKAY [ 0.025s]

finished. total time: 0.088s

I AM working on an Archive for LE ECO PRO 3 LEX727 like an ALL IN ONE TOOL KIT for Rooting / Stock Rom / Stable Android 8.1 / Tools and USB drivers / Lab File ..etc

Some good juice ! :victory:

Happy flashing !
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] mchlbenner:
I posted this quiet awhile a go

19s has a temp unlock.

20s had a temp unlock.

21s you had to flash the 19s bootloader get unlocked.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] mchlbenner:
Lex727 bootloader unlock

1.download bootloader unlock zip.

https://www.mediafire.com/file/nvsw2fhnt1e2q7d/x727-5.8.019s_bootloader-unlock.zip

Have ADB/Fasboot tools on your computer*(I am not helping you here, it you're lucky, maybe your friends will help)Make sure you have enabled the developer tools, turned on USB debugging, and authorized your computer on your device*(again, I'm not helping with that)Make sure adb can see your device when you run "adb devices"Run "adb reboot bootloader"Run "fastboot devices" to make sure you see your deviceRun "fastboot oem unlock-go" to unlock your device temporarilyRun "fastboot oem device-info" to verify unlock statusRun "fastboot boot recovery_twrp.img"*(or whatever the twrp image filename is on your computer)to boot up to TWRP

If this fails you need to flash bootloader.

Fastboot flash emmc_appsboot.mbn.

I person personally did this command and drag and drop file minimal adb program work perfect.

If you need this program here it is.

https://www.mediafire.com/file/9gxfrob1d3idric/minimal_adb_fastboot_v1.4_setup.exe
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] messerchmidt:
dont recall, but it took some doing to get it going. once you have twrp installed, rest is easy
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] marksklava:
Hi, i am sorry for posting in an x727 thread, i have an x626 and i have the same problem a lot of people are having here, when i try to unlock bootloader it says FAILED unlock operation is not permitted, is there anything i could do to fix this? The devices seem to be simmilar, again i am sorry for posting in an x727 thread, but any experience helps even if it's not the right phone.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] mchlbenner:
Did check development settings to if their is a OEM unlock option!

If their is not one you can't unlock bootloader
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] marksklava:
Yeah i sadly missed that and bricked my phone so i cannot do that anymore.
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] tsongming:
You have a completely different processor than we have. So our unbricking steps will NOT work for you.

Here is the solution for your phone: https://www.androidbrick.com/leeco-le-2-x620-x620-pro-x625-x626-pro-unbrick-guide/
[LeEco Le Pro3 ROMs, Kernels, Recoveries, & Other D] colt223:
Thank you!! Love this phone so far, kinda freaked when it said unable to unlock bootloader. Much appreciated, cant wait to see how this runs with Lineage