yashsingh1/xdaforums huggingface dataset:
[Lenovo Legion Y700] ZA12GN1:
If you were on the CN 795 ROM before flashing global, you will have to reflash a 795 ROM. Everything else (global 139, global 240, cn 774) will not boot.

Since the links for CN 795 on this forum are all broken, you will have to request for someone to reupload it for you.

I am currently still on CN 774 because I have not had time in the past few weeks to play around with the other ROMs. Hence, I can't make a 795 ROM for you. Sorry about that.

EDIT: @rydeen8 Could you please do this person a favor and try uploading the 795 ROM to MEGA this time? That way, there's less of a chance that the link will be taken down for others. Thanks.
[Lenovo Legion Y700] MGY0213:
@ZA12GN1 Thank you very much for your reply. You gave me some hope here!! Hopefully, someone here can help me out with the CN 795 ROM so I can give a try.
[Lenovo Legion Y700] ZA12GN1:
Yeah just relax for now. I'm 99% certain that after you get the 795 ROM, you will be able to unbrick it successfully. The challenge right now is just looking for the ROM itself.

The same thing happened to me when I accidentally flashed from 774 to global. I needed the 774 ROM before I could figure out how to unbrick it through RSA, as I wrote about in my post on this thread.
[Lenovo Legion Y700] rydeen8:
17.24 GB folder on MEGA

24 files and 3 subfolders

mega.nz
[Lenovo Legion Y700] MGY0213:
oh my god!! It worked!!

I was trying for hours and hours and I am glad it is finally working. Thank you very much both of you . @rydeen8 @ZA12GN1 , you both save me a lot here.

Quick question, since I am already on CN795 now, how should I go about flashing the Global ROM. Which ROW version should I be flashing on top of the CN795 or do i have to be rolling back? Also, should I be in OEM unlock state while flashing any of these ROM.

Could you please provide your suggestion here for the next step to migrate to Global ROM?
[Lenovo Legion Y700] avatarwan13:
u can't flash global from cn .795 if your bootloader is still locked.

u have to go back to cn .774, and unlock bootloader, then flash global with patched vendor_boot.img.
[Lenovo Legion Y700] Ledesma90:
Hello friend, can you confirm if in version 795 by installing the apk below you can change the language on the tablet using set edit APK? Could you confirm if the battery level disappears with this APK?

Update: Ctspreconditios works in 795, you will be able to change the language.

El nivel de la batería sigue desapareciendo

I discovered that disabling the option From the image below the battery level does not disappear when unlocking

Update 2: Unfortunately the battery level continues to disappear at the start of certain applications, solution: install macrodroid and grant all necessary permissions and add the macro that I attached, the battery will show every time you flip the screen upside down Or when you rotate the screen you open an application (I updated the macro)

The permission that macrodroid needs is:

adb shell pm grant com.arlosoft.macrodroid android.permission.WRITE_SECURE_SETTINGS
[Lenovo Legion Y700] avatarwan13:
Yes, ur device will boot into test mode. And when using this on .795, battery icon disappear is no longer an issue.
[Lenovo Legion Y700] Ledesma90:
I just updated to the 795 and it still has the battery level problem
[Lenovo Legion Y700] avatarwan13:
That's wierd, i have no issue with battery icon disappear when I was on cn .795.

Try to enable/disable custom statusbar.
[Lenovo Legion Y700] Ledesma90:
Unfortunately in my case it doesn't work
[Lenovo Legion Y700] reden72:
May someone please upload a patched vendor_boot for ROW 240?
[Lenovo Legion Y700] deeks888:
Can you relock the bootloader after this. I imagine you wouldn't be able to do future ota updates after that?

Sent from TB320FC using ReLabs
[Lenovo Legion Y700] avatarwan13:
U can't re-lock the bootloader.
[Lenovo Legion Y700] hesham6666:
THANKS to whoever uploaded 795 now my tablet is un-bricked after many hours trying to bring it back to life. The question now, can i go back to 774 so i can unlock it for global version???
[Lenovo Legion Y700] deeks888:
that's a shame, hopefully someone can find a way around this. Would be awesome to make CN795 tablets official global rom that could be updated over ota.

Sent from TB320FC using ReLabs
[Lenovo Legion Y700] Ledesma90:
Does any user of version 795 have this option or am I the only one who does not have it?

(Smart hide bottom prompt bar)
[Lenovo Legion Y700] Onimusha117:
Same process. But you replace 795 rom data with 774 in RSA.
[Lenovo Legion Y700] hesham6666:
Where can i find 774 firmware?
[Lenovo Legion Y700] Ledesma90:
11.79 GB folder on MEGA

3 files

mega.nz

Lenovo Legion Tab (Y700 Global Release)

Seems like Lenovo is going to release a global version of the Y700. https://www.notebookcheck.net/New-Lenovo-Legion-flagship-Android-tablet-shown-before-global-release.809927.0.html

xdaforums.com
[Lenovo Legion Y700] hesham6666:
Thank you!!
[Lenovo Legion Y700] hesham6666:
OK. I downgraded to 737, unlocked it, then flashed NEC 008 went through OK then I got a successful OTA for latest NEC firmware.

It was hard switching to English by translating the menu items by my mobile but i managed. The NEC firmware feels way better than the Chinese version all apps from play store or APKs install with English.

I hope the change was easier. I spent many hours to accomplish this. Thanks to this great forum..
[Lenovo Legion Y700] deeks888:
did you have you relock the bootloader to get OTA? That seems like a good alternative when you can't go from CN774 to official global. May do that myself, do you have a guide you followed?

Sent from Pixel 4a using ReLabs
[Lenovo Legion Y700] deeks888:
also do you know if the pen works? thanks in advance!

Sent from Pixel 4a using ReLabs
[Lenovo Legion Y700] hesham6666:
I did not perform lock myself. I was surprised when the OTA downloaded and installed sucessfully
[Lenovo Legion Y700] hesham6666:
I don't have a compatible pen to try..
[Lenovo Legion Y700] kenysc99:
Greetings, I was lucky and got 15.0.774 from a local Lenovo vendor :cry: I'm still looking to flash a global rom to have some freedom out of the "Great Wall" :sneaky:

I read this thread and others knowing I have 2 options:

1. NEC JP 15.0.022: unlock bootloader, RSA then keep it unlock

2. Global 15.0.240 : unlock bootloader, RSA a patched rom then keep it unlock

I'm looking to re-lock bootloader going forward to enjoy Netflix L1 quality, my question is if later there is a way to remove the region lock, which option would be easier to flash the region free rom?

Also I'd be primary running emulators and want to get rid of ZUI 'coz it's known to cause issues with one of the best switch emulators :cool:, shall I just go for the NEC route?

TIA 🤝
[Lenovo Legion Y700] Joe3Stix:
I'm stuck. Been reading this thread for a month or so now, still not sure how to recover. I have a CN TB320FC. I *think* it started life with the CN 139 rom. It did an OTA update at one point, but I'm not sure what rom it went to - maybe 240?

I used this link to attempt to load the global rom. That got me "the current system is not compatible with hardware" error.

Device State is locked.

Using the first post in the thread, the fastboot oem unlock-go fails with

fastboot: error: Command failed.

Any help would be appreciated. ✌️🙏
[Lenovo Legion Y700] Breed43214:
You've been region locked to CN firmware. Just flash the latest CN .795 firmware and you'll recover.
[Lenovo Legion Y700] MrSmoothSwing:
And where might I find that ROM? I am having the same problem....
[Lenovo Legion Y700] Joe3Stix:
Thanks for the quick reply!

So, download the CN 795 rom, extract it to the TB320FC_ROW_OPEN_USER_Q00031.0_T_ZUI_15.0.240_ST_240411 directory in RSA, then use RSA to recover? Do I need to drop the sn.img file from Lenovo in there?
[Lenovo Legion Y700] Joe3Stix:
See post 342
[Lenovo Legion Y700] Breed43214:
Yep, you got it.

No need for the sn.img, as there is no need to unlock the bootloader.
[Lenovo Legion Y700] Joe3Stix:
Sorry - feeling like a noob here - when I copy the CN 795 files over (clearing the 240 files first) and fire up RSA, I get a "Flashing files are abnormal" error, and the only option is to quit. Should I leave the 240 files in place, copy the CN795 files overtop, and run with it?
[Lenovo Legion Y700] Breed43214:
You only copy over files in the images folder, as per this post:

[GUIDE] Unbrick Lenovo Y700 tablet

Windows guide, might work for other aswell. I finally solved my problem with my Lenovo Y700 tablet being stuck in bootloop mode due to trying to flash Magisk boot with a mismatched firmware version. This resulted in the UI constantly crashing...

xdaforums.com
[Lenovo Legion Y700] deeks888:
CN 795 doesn't seem good for english anymore, too much forced chinese language. Has no one else experienced this?
[Lenovo Legion Y700] deeks888:
Also if anyone more knowledgeable knows the answer to this, I would also be really for an answer
[Lenovo Legion Y700] Breed43214:
Currently, there is no way to remove the region lock. It's stored in a hidden, protected partition.
[Lenovo Legion Y700] hesham6666:
I installed the NEC version which installed in japanese but using google translation on my phone was able to locate the language option and sitched to english. Unlike the chinese version it Comes loaded with google software. See my post #360
[Lenovo Legion Y700] Breed43214:
Still needs the bootloader unlocked though if people are coming from CN .795 as the latest NEC is older.

In theory, the next time the NEC firmware is updated people should then be able to lock the bootloader.

Unless they introduce an JP region lock!
[Lenovo Legion Y700] deeks888:
thanks!

Sent from Pixel 4a using ReLabs
[Lenovo Legion Y700] Joe3Stix:
Thank you, thank you, THANK YOU! My tablet is working again. Appreciate your help!
[Lenovo Legion Y700] JonTrv:
Now I am totally stuffed. The only thing that works is fastboot, and in that,

fastboot getenv all

returns evidence that suggests the partition structure is corrupted. Using the recovery image from the qpst firmware,

fastboot flash recovery recovery.img

appears to work, in that it reports successful completion, but it will not boot into recovery. Is there any fastboot script that can rebuild and populate partitions ? I do hope I can avoid sending it back to Lenovo China...
[Lenovo Legion Y700] JonTrv:
Does anyone have any idea what the minimum flash state is to start in EDL mode? After trying 5 different PC's, 3 with variants of Linux, Win7 and Win10, and 2 different cables I still get 'no port available' in QFIL. I am now convinced it is the Y700 at fault.
[Lenovo Legion Y700] JonTrv:
Fixed, at least for me, on Linux (Mint 21.1). QPST/QFIL is not going to work.

I found a link to qdl, cloned, compiled, put in folder '~/qdl'. (~ is your Linux home folder)

I have the stock ROM in '~/LenovoY700/tb-9707-firmware'

cd ~/LenovoY700/tb-9707-firmware
fastboot devices
fastboot oem reboot-edl <<<<< note this....
sudo ~/qdl/qdl prog_firehose_ddr.elf rawprogram*.xml patch*.xml

Apart from the userdata partition taking a very long time, the flash completed and my Y700 boots the stock ROM perfectly.

One problem remaining, I cannot read Chinese, so I want a near stock Android on it. Now to find out how to flash crDroid. Instructions I have seen say flash to the system partition, however, that fails,

Writing 'system' FAILED (remote: 'Partition not found')

fastboot getvar all

agrees, I have 'vm-system_a' (& _b), but no 'system'...

Is there a well documented writeup of exactly how to flash crDroid?
[Lenovo Legion Y700] lobird:
Hello i did every step but it wont flash
[Lenovo Legion Y700] lobird:
Nevermind i fixed it

It needed storage type ufs
[Lenovo Legion Y700] lobird:
And also ota works with returness vpn damn i just got tablet today from ali express such a nice lil tablet im now wonder if i should buy the lenovo y70 phone i have a mi11 and flash cn rom on there but im still not sure of how good the camera is from the y70 vs mi11
[Lenovo Legion Y700] Ale_ax:
I just followed the step by step guide in first page, but din’t relock, the ota will come even if you leave the bootloader unlocked, just use a chinise vpn at first time ota
[Lenovo Legion Y700] sunwellas:
Thank you so much. This save my bricked one.
[Lenovo Legion Y700] tiger30:
Im thinking to buy this tablet from AliExpress with the "global rom", is it possible to install original cn rom and relock the bootloader? I think its big deal at almost 300€....
[Lenovo Legion Y700] ou2mame:
I bought the global rom version because I didn't know it was much more limited than the stock Chinese rom. I used this guide to flash the Chinese rom and it works fine. I didn't lock the bootloader and was able to install all the OTA updates and have no issues. I'm assuming you can lock the bootloader with fastboot but I never tried.
[Lenovo Legion Y700] Contrec:
Hello, just tried this tuto to bring back to stock ROM (bought this tablet with global ROM). But fastboot doesn't see any devices (tablet is on, with dev mode on). I tried several USB ports and cables. Thing to note, when the tablet has dev mode on, my PC recognize it as "Lenovo Tab P8"... This is a Y700...

I installed also the lenovo usb drivers etc...

Doesn't anyone could help me installing the stock ROM please ?
[Lenovo Legion Y700] Ran0250:
Hi What firmware did you download? I have the 8-128 device.

- bought from Aliexpress and it came with a "global version" that comes without OTA and all the features.

(if there already is ZUI14 Update is there a way to install it directly instead of installing the 13v and then updating again?)
[Lenovo Legion Y700] Ale_ax:
No, the global that came with aliexpress is garbage, follow the guide and flash the stock rom, DON'T try to relock bootloader from ZUI 13, haven't tried with 14 but I won't risk, later install "returnees VPN" and use a free chinese server for download the first OTA in the updater app, after the first OTA you will not need China VPN anymore, get the last ZUI 14 and only after that sing with the google account.
[Lenovo Legion Y700] Ran0250:
@Joncka Thanks for the guide .

My device arrived unlocked and I didn't have to open the bootloader..

I installed the ZUI 14 It worked great with no problems.

Then After the installation it showed me that there is a small update of about 25mb I clicked install and it just worked!(to 14.0.270)

I did not lock the bootloader And there was no need to connect either VPN for that
[Lenovo Legion Y700] Joebuntu:
I screwed up.

I flashed the rom doing what this guide says, EXCEPT unlocking the bootloader. I cannot get the Imei1 from the tablet anymore due to the tablet saying that the software was corrupted and was not trustworthy.

Is there another way to get the Imei1 from, say, the box? If so, point it to me because I'm an idiot who flashed without unlocking the bootloader first.

TL;DR: how 2 unlock bootloader when android is unavailable and Unaware of Imei number. Thanks!
[Lenovo Legion Y700] Bladecaller:
Hello guys, I am unable to download the stock ROM(My tablet came with the global ROM while I want to use it with the CN stock one) "This site can't be reached". Could somebody provide an alternative link please ?
[Lenovo Legion Y700] Bladecaller:
A community member sent it to me. If anyone needs the link, pm me :)
[Lenovo Legion Y700] rudi1986:
Based on my recent try, in unlocked bootloader status, flash to stock rom, then update to latest firmware Zui 14 with auto update, use ADB to re-lock bootloader, toggle OEM unlocking to Off in Developer Options. When i try to re-lock bootloader with stock rom, it will brick the tablet with device corrupted message.
[Lenovo Legion Y700] kenysc:
I heard JP 15.0.036 is out, can I just keep my .774 device boot loader locked and RSA this version (which the security update date should be higher than .774?

TIA.
[Lenovo Legion Y700] Breed43214:
Yes. Provided you are on .774 and not .795 you should be able to move to NEC .036 without unlocking the bootloader, as the rollback index (timestamp in the below) of .036 is higher:

You should be able to do it via RSA but putting LAVIETab9QHD1 in as the model number.
[Lenovo Legion Y700] deeks888:
That's interesting, so the region lock doesn't matter going from CN to NEC ROM? would you think with the next JP update you may be able to go from CN 796 ROM to NEC through RSA without unlocking? I have read through the thread a few times, still getting my head around it all. thanks!

Sent from Pixel 4a using ReLabs
[Lenovo Legion Y700] Breed43214:
Correct. The NEC firmware currently does not check for a region code on boot. That means even if you have the PRC or ROW region code applied on your tablet you can run the NEC firmware.

In theory, the next NEC update will be able to be applied on top of .795 without the bootloader being unlocked.

There is always the possibility they will apply a region code check to the NEC firmware in future though.
[Lenovo Legion Y700] deeks888:
Very helpful, thanks very much. So if we move to NEC with region lock, then a new ota comes with a region code check could that potentially brick the device? thanks again!

Sent from Pixel 4a using ReLabs
[Lenovo Legion Y700] Breed43214:
Potentially. Would only be a soft brick though as you could just reflash a newer CN (which is updated more than any other region) firmware on top.
[Lenovo Legion Y700] xjmgny:
Hey men I'm new to this and tried to root my lenovo y700 after everything is done I figured might as well lock it again but I had the same message as you and now my tab is stuck at bootloader menu even if i select anything else it just comes back to bootloader menu.
[Lenovo Legion Y700] A.T.Q:
Can someone share to me how to flash to nec rom...right now i use china rom rom 795
[Lenovo Legion Y700] kenysc:
Confirm CN.774 good to flash to JP.036 with boot loader locked and keeps widevine L1.

I use RSA v6.9.3.7 and followed this guide https://serasome.com/it/y700/global-rom
[Lenovo Legion Y700] Breed43214:
You'd have to unlock the bootloader which I've seen reports online is not possible on .795, so you may be stuck until new NEC is released.
[Lenovo Legion Y700] project_2501:
Does the Legion Assistant game service function noticeably different on the NEC version (missing features, etc.)? It's mostly Google services for the core apps, correct? What is the month/year of the system patch date? Wondering if the NEC build is the better alternative compared to Global?
[Lenovo Legion Y700] Breed43214:
The month/year patch is detailed 9 posts up.

My understanding is the NEC Game Assistant is identical to Global. It has the same missing tiles compared to the CN version that the Global one has.

There's no upside to the NEC ROM if you're able to run Global easily.
[Lenovo Legion Y700] A.T.Q:
If i go back to 774 version can i flash to nec...my only problem with china rom is tiktok in chinese even after i change to english
[Lenovo Legion Y700] Breed43214:
You'd have to unlock the bootloader to go back from .795 to .774.

But if the bootloader is unlocked you might as well go straight to NEC.
[Lenovo Legion Y700] Funes1985:
Hello everyone,

I am kinda desperate here, I received today my Y700 from a Aliexpress reseller. Tablet came with pseudoglobal ROM, unlocked bootloader, but critical_unlock locked. Also the ability to enable OEM unlock was disabled from Developer Settings, and Fastboot command returned that no OEM unlock was possible (bit set to 0).

I made the mistake of locking the bootloader and now the tablet won't longer boot and I am stucked in Fastbood Mode loop with Device State - locked. Any attempt of unlocking the bootloader will return that the device is in locked mode.

I have tried different rescue methods explained here and the korean blog, I tried RSA but I am getting a Sahara error when checking the logs, also tried QFIL directly, same outcome, Sahara Error. I have run out of ideas, and I have tried 3 different cables / usb ports, driver versions.... Any help would be appreciated
[Lenovo Legion Y700] A.T.Q:
This is my first time to flash rom...Can someone teach me how to flash to nec step by step
[Lenovo Legion Y700] Breed43214:
You should be able to recover via RSA using a locked bootloader. It's a common misconception that the bootloader has to be unlocked to flash a device. A bootloader only has to be unlocked to install a custom ROM, or an older official ROM.

Tablets from AliExpress with the Pseudo Global ROM have usually been installed over an old enough CN ROM (<.761) that you should be able to move to the Global ROM via RSA.

In RSA, are you selecting TB320FC as model? Is the device definitely in EDL mode before flashing? Black screen? From a powered off state, press and hold Vol Up when inserting USB into port on long edge?

What does the device manager say when in EDL mode?
[Lenovo Legion Y700] Breed43214:
You need to provide your current firmware and bootloader state. From your previous post, it sounds like you're on CN .795.

I don't think the bootloader can be unlocked on .795 so you're stuck on it for now until a newer NEC ROM is available.
[Lenovo Legion Y700] Funes1985:
Hi,

Thanks for the quick answer. Yes, the device is properly selected:

Device manager is recognizing the tablet as Qualcomm HS-USB QDLoader:

However, RSA is failing every single time, with different cables and ports:

And this is what is showing in RSA logs:

I can't get this to work neither QFIL on its own, and I am getting the same error all the time.
[Lenovo Legion Y700] Breed43214:
Stupid question, but do you definitely have a 2023 model and not 2022?
[Lenovo Legion Y700] Funes1985:
Yes... 2023 :)
[Lenovo Legion Y700] Breed43214:
Other than trying a different USB port and cable, I don't have any other suggestions, sorry.

In another post, people earlier mentioned the flashing is quite picky and had to try different computers and ports.

Older USB 2.0 ports seemed to have better compatibility.
[Lenovo Legion Y700] kenysc:
Just summarize the steps from my experience, all credit to Sera who posted his great guide.

Make sure your Y700 is on 15.0.774

Download and install RSA 6.9.3.7 on your PC

Run RSA, select TABLETS under Rescue tab

Input A1111111 (Upper A + 7 ones) as the S/N

RSA would tell the S/N doesn’t match, click “Select your model from a list” when it prompts

Input “lavie tab 9QHD1”, select the only available ROM then click the Download button

Once download finished, click on the Rescue button, there are few notice/reminder on info collect, data backup etc, just click OK to get pass them

The RSA will show a screen with instructions on how to turn off your Y700.. click OK and RSA should be in a state to wait for your device connection

Plug in a USB-C cable to your PC (do NOT connect Y700 yet!!!)

Now, completely switch off your Y700

While holding Vol Up button, plug in the USB-C able to your Y700 on the long side USB port

The flash process should start automatically and you’ll see the % progress, wait until 100% and RSA displays finished, your Y700 should auto restart and you can disconnect the USB cable

After the Android set up screens, you can set the country code using ####6020# (but I haven't done that yet), also you can delete those JP apps you don't want. Also I recommend to disable all auto updates just in case.

Hope this help.
[Lenovo Legion Y700] Funes1985:
Hi! I tried using my Steam Deck, booting windows over an SDCard, a USB-C dock, and one of the cables I had already tried. IT FREAKING WORKED! Now my tablet is up and running again, on v. 15.0.240. Thanks a lot for your time.

I will try to throw my two cents to anyone having problems with flashing their tablets. Download latest version from Lenovo, you can google this, install it, and don't tinker with anything else, the MSI comes with everything needed to flash your device, even fastboot is not needed. If, somehow the flashing procedure is failing try in a different computer, run a VM or ask someone for their computer. For me, it was the computer, I tried 3 different USB ports and cables, nothing worked, it was a different device what did the trick.