[LeEco Le Pro3 Elite (Model x722) Guides, Developme] sk8223:
x722 QFIL is now available for hard bricks. See x722 Development Forum or scroll down for the link.

Although this thread is stickied in the Question & Answers sub-forum, I see that people are still ending up with bricked phones because they only visit this section of the forum. Let's hope this thread puts an end to accidental bricks once and for all (and let's hope that the future brings a solution to these bricked x722s).

Don't worry; custom 26s ROMs are fine to flash through TWRP. Vendor ROMs are fine to flash through TWRP.

Just don't flash the first stock 26s ROM you find online. Like the 26s ROM from Needrom, or a 26s ROM from a Chinese forum.

WARNING! There was a report that [MENTION=1554950]STEVE_MARS[/MENTION]'s Genesys 26s ROM bricked a phone. See this post for reference. I urge you to stay away from that ROM and other eUI 26s based ROMs. You never know if your device will get bricked

Below lies the same info as is in the Q&A forum sticky.

Planning on flashing a custom ROM on your LeEco Pro3 Elite x722? Planning on flashing TWRP on your LeEco Pro3 Elite x722?

READ THIS ENTIRE POST FIRST, or you may accidentally brick your device

DO NOT flash official/stock 26s through TWRP.

DO NOT UPDATE TO official/stock 26s if you want to flash TWRP on your x722.

Your x722 will get permanently bricked if you install stock 26s (or firmware WIXCNFN5802005041S) through TWRP. That's because stock 26s permanently locks down the bootloader. At that point, only fastboot is available. Do not attempt this or you will end up with a permanently bricked device.

EDIT: As of September 24, 2018, [MENTION=6122705]F.J.V[/MENTION] has posted the x722's QFIL. Hooray! https://xdaforums.com/le-pro3/leeco...ides-development--and-mods/qfil-x722-t3846553

HELP! I'm on 26s! I received my x722 and it's stuck on 26s! HOW DO I GET RID OF IT?

That's simple. If your x722 is on stock 26s, you only need to flash Batyan's 01D developer ROM (20s) through the stock LeEco recovery. Click for the download and instructions. Follow the instructions and you will be able to safely unlock the bootloader and flash TWRP.

However, most x722s are on vendor ROMs. If your phone is on a 26s vendor ROM, it's safe to flash. Look at the chart below to figure out if you've got stock 26s or vendor 26s. If you're not sure about what you have, post here and we'll try to help. If you don't want to take any chances, you can always downgrade to 01D first.

[MENTION=5366803]dakok[/MENTION] has created a handy chart for the different vendor ROMs here.

I just got my x722 today and I want to unlock the bootloader, root it, and flash TWRP. How do I do that?

Here you go: [GUIDE][X722] Unlock Bootloader + TWRP + ROOT

What ROMs are available for the x722? Will x720 ROMs work on the x722?

Some x720 ROMs are indeed compatible with the x722, but need to be ported to the x722, therefore not all x720 ROMs work on the x722. If the ROM is not specifically for your device (i.e. labelled as being for the x722), don't flash it. For example, MIUI is not available for the x722 because no one has ported it from the x720 to the x722. If you flash, say, MIUI 9 for LEX720 on your x722, you'll end up with a soft brick, most likely.

Remember to make a Nandroid backup of your eUI ROM before flashing any other ROM!

Downgrading to the 01D ROM won't harm your phone in any way, but this ROM's performance isn't the best compared to normal 20s or 26s vendor (shop) ROMs. It's a developer's ROM, after all. So if you ever want to return to eUI, you'll want to make a backup of your vendor/shop eUI ROM via Nandroid if you're sick of custom ROMs for whatever reason.

I want to go back to eUI from a custom ROM. What should I do?

If you want to return to the 01D 20s ROM, you have to flash it through the stock LeEco recovery, NOT TWRP! Do not attempt to flash the .bat file from this package or the update.zip from this package via TWRP or you might screw up your device royally. If you absolutely need to go back to this ROM for whatever reason, you need to flash the stock recovery first through fastboot.

I recommend you follow my advice and make a Nandroid backup of your 20s vendor/shop eUI ROM or the 01D ROM (if you had to downgrade because you were on a stock LeEco ROM) before flashing anything else on your device. Guys, it's basic XDA knowledge to make a Nandroid backup of stock software before attempting anything... c'mon now.

Feel free to correct/add to this thread as you see fit. Thanks.

EDIT: Here's a link to all the LeEco Pro3 x720 and x722 files I've collected so far. Uploaded them in case you're not able to download the original files.

WARNING: File size is 15 GB!! https://mega.nz/#!EAN30agB!0miPxwX8uxr-g2oetHB1X09KyPh-y1tq8gcJvDd9X0o (compressed 23 gigs)

Included files:

Batyan 01D (170720-乐视X722-5.8.020S-6.0-纯净) - 01D Developer ROM for x722

FlashOne2.0

le_zl1_qfil_ufs (NOT FOR USE WITH zl0, AKA X722!!!) - if your x722 is bricked, you risk making the brick worse by using these files to resurrect your device. You have been warned.

UNLOCK_RECOVERY_FASTBOOT_TOOL_zl0_LEX722

x722 Stock LeEco Recovery (DO NOT FLASH UNLESS YOU KNOW EXACTLY WHAT YOU'RE DOING)

乐视 pro3 x720 x722 x728 fast模式一键救砖

乐视_X722_救砖包

乐视Pro3（乐视X720 X722 X728）

camera_2api_tora33

Outdated files: You can use normal Magisk instead of these

X722_stable_20s_MagiskRoot_v4A_C.B.G_tora33

X722_stable_20s_NoRoot_tora33