yashsingh1/xdaforums huggingface dataset:
[Lenovo P11] empty.cad:
please for me ota.zip from 555 to 556 , thank so much
[Lenovo P11] mightnare:
https://xdaforums.com/t/install-stock-rom-xiaoxin-pad-pro-2021-tb-j716f.4347951/post-87112715
[Lenovo P11] empty.cad:
thank you
[Lenovo P11] Carmanhan:
Can someone help me? I ****ed up and got the message "Your device is corrupt." But the service to recover the file directly on the Lenovo website is in maintenance and it says to send an email if I wanted to, but I don't know how I should send this email (if it's in English or Chinese, etc.)
[Lenovo P11] lethargy123:
Send email use chinese
[Lenovo P11] Radicfazed:
http://cdn.zui.lenovomm.com/developer/tabletboot/[your sn number]/sn.img

you can use this to generate your own sn.img file
[Lenovo P11] LKMT:
hello, when should i lock my bootloader? first I apply the stock rom and then I can perform the blocking procedure? Or do I do something first?
[Lenovo P11] rb25zed:
Hey guys I am one of the ones with the device is corrupt issue. But I foolishly did not get a sn.img and now I cannot get my IMEI. I only just got the tablet and it running for only a little while before I attempted this. Now all it does is boot into fastboot and the bootloader is locked. Is there any way for me to recover from this? :( I don't think I enabled OEM unlocking in developer options as well.
[Lenovo P11] rb25zed:
Is there a ROM that I can flash using QFIL that will enable me to get into android and allow OEM unlock?
[Lenovo P11] juliorcp:
Guys,

I bought the tablet with a global ROM and I tried to restore to the original ROM. I could restore but then I tried to lock the bootloader (to receive OTA updates) and I'm stuck at the fastboot mode.

I tried to reflash the original ROM but when the tablet is rebooted after the reflashing it came back to the fastboot mode and it is in a loop.

I'm desperate because it seems a bricked tablet.

Can you help me?

Thank you!
[Lenovo P11] rb25zed:
If you enabled OEM unlock in the developer settings before doing this you might be able to use fastboot to unlock the bootloader and that might let you get back into Android so you can do the OTA updates.

Check out this post:

Lock+Unlock Bootloader - Xiaoxin Pad Pro 2021 [TB-J716F]

How To Lock and Unlock Bootloader - Xioaxin Pad Pro 2021 - TB-J716F Since I found out that the Tablet supports Project Treble I'm trying to get a GSI-ROM running on it. Currently with many trial and error I got LiR-ROM to boot. The first step is...

xdaforums.com
[Lenovo P11] juliorcp:
And that is the problem, my friend. I didn't enable the OEM unlock and I can't boot the device into normal mode (it is in a fastboot mode loop). It is stuck. Is there another way to enable the OEM unlock? By the way, do I need the unlock image? I've already asked to Lenovo, but they haven't replied so far.
[Lenovo P11] SalJR:
Heys friend, a question (probably a noob one)... I bought my P11 with global rom... what would change if I install the original/CN rom? Does it have a better looking/interface? More apps? Is it more safe than the global rom?
[Lenovo P11] Neter_:
Hola pudiste solucionar el problema a mi me pasa lo mismo
[Lenovo P11] Guanaboy:
Hello,

Does some one can tell me if official Chinese ROM has all the Google framework and works with google pay?

Second question, i have an alert message when i turn on my tablet with the global ROM. Does it means the bootloader is unlock or should i made something else?
[Lenovo P11] David2342:
Hello friends, I have the 560 version, thanks for your help. Does anyone know how to root that version?
[Lenovo P11] DanAcuna:
did u maneged to get your tablet working? i'm in the same boat.
[Lenovo P11] carlosfla21:
I followed this tutorial https://xdaforums.com/t/install-stock-rom-xiaoxin-pad-pro-2021-tb-j716f.4347951/ . My tablet was stuck on fastboot, it was in loop.

" http://cdn.zui.lenovomm.com/developer/tabletboot/[your sn number]/sn.img" - just put the serial number on the back of the tablet in place [your sn number] takes it all away ai from the link above and put the serial number in the browser and the image will start downloading. I had to download the attached program, there I pasted the image inside the program folder, and ran the unlock bootloader that is inside the program folder when you extract it. And ready Bootloader unlocked then just install the original Chinese room by Qfil.
[Lenovo P11] serrbruh:
My bootloader is currently unlocked, managed to install stock rom version 12.6.211. however I am unable to get OTA to update to 12.6.238 because system update says I have an unlocked device. I can't relock because I will get stuck in bootloader if I lock it now.

Already had to do the HAHAHA sn edit once so I am unsure how to proceed to get to 12.6.238 from stock 12.6.211.

Am I correct to assume that

1. I have to use magiskhide to hide unlocked bootloader status,and then

2. attempt OTA to 12.6.238, then

3. manual update onwards until 13.1.555, and then

4. try lock bootloader again?

*EDIT*

after switching off the tablet and turning it on a few hours later, I checked system update and was surprised to see there is option to update to 12.6.238. managed to update to 12.6.238 successfully.

repeat steps of checking for update, waiting 5min, reboot, check Settings>My device to see if new system update available.

managed to update to 13.1.555.

uninstalled Qualcomm driver from my pc, put tablet into bootloader, (my device appears as Other devices>Xiaoxin Pad Pro 2021 in Device Manager) then ran LockBootloader.bat as per here

Device booted up, automatically resetted

downloaded DRM Info and got Widevine L1

Thanks for instructions

*UPDATE*

managed to get OTA for 13.1.560. updated successfully and widevine remains at L1
[Lenovo P11] VagnerVC:
BE CAREFUL WHEN FOLLOWING THIS TUTORIAL, it will lock your devide on a fastboot state. Don't try to lock the bootloader after flashing, you HAVE TO UPDATE FIRST.
[Lenovo P11] opurarafael24:
Did you had the same issue with lock bootloader on the latest zui 13.1.560 still getting L3 that's why you did this step of yours? "uninstalled Qualcomm driver from my pc, put tablet into bootloader, (my device appears as Other devices>Xiaoxin Pad Pro 2021 in Device Manager) then ran LockBootloader.bat as per here"
[Lenovo P11] serrbruh:
I locked bootloader on 13.1.555, no issue with widevine, got L1 after locked. When I previously locked on zui 12, I encountered bootloop so to be safe I deleted qualcomm driver first because I didn't want to go through the hassle of changing my serial number to HAHAHA and unlock again

I didn't know there was furthur available update to 13.1.560 when I locked at 13.1.555

For anyone whose bootloader is locked and you don't have a sn.img file to unlock then you can just do the steps here. It definitely works because I just tried it last week
[Lenovo P11] opurarafael24:
So to be clear, you were able to lock your bootloader in 13.1.555 when there is already 13.1.560 update? You just have to uninstall the qualcomm driver.
[Lenovo P11] serrbruh:
Yes correct
[Lenovo P11] opurarafael24:
Update. I did try locking my bootloader on 13.1.555 using your step and still i got corrupt device.
[Lenovo P11] serrbruh:
Probably you missed a step when you were locking your bootloader.

I guess you can unlock and try again.

how to unlock your device without sn.img file from lenovo

after unlocking, try flashing the official rom again until 13.1.555

then uninstall qualcomm driver, install lenovo usb driver, put device into fastboot mode and connect to PC. Your device should be identifed as Other Devices>Xiaoxin Pad Pro 2021 in Device Manager. If it doesnt appear as such, then don't proceed to lock bootloader

IF your device should be identifed as Other Devices>Xiaoxin Pad Pro 2021 in Device Manager.

then lock bootloader as per post #278 to #280 here.

the guy in this post encountered bootloader loop also, same situation as you and he managed to resolve it.
[Lenovo P11] SalJR:
Friends, what is the best way to root this tablet? I have the bootloader unlocked!
[Lenovo P11] opurarafael24:
I will try again. So i need to lock bootloader in fastboot mode. What command should i use? Or i can still use the batch script command
[Lenovo P11] serrbruh:
You can use batch script command. Read through the links to the guides I've posted and you won't have a problem
[Lenovo P11] opurarafael24:
What lenovo driver did you use sir?
[Lenovo P11] serrbruh:
It's in the link I previously sent for bootloader. The driver and the instructions are in the link. You just need to open the link and read through
[Lenovo P11] opurarafael24:
I am only seeing this. I have installed lenovo driver and uninstalled qualcomm driver
[Lenovo P11] serrbruh:
Disconnect then put your tablet into fastboot mode, then connect to your PC and see what is in your device manager
[Lenovo P11] opurarafael24:
I am already in fastboot mode sir
[Lenovo P11] serrbruh:
what is the screen of your tablet showing?

go into control panel > add or remove programs > search for 'LenovoUsbDriver 1.1.34". if it is not in the list of installed programs, it means you need to reinstall lenovo usb driver.

Search for "Qualcomm", if it appears in the list of installed programs,, then you need to uninstall the qualcomm driver.
[Lenovo P11] opurarafael24:
It is installed i can see it. Here's what is happening when the tablet is fully booted i can see it in other devices as xiaoxin pad pro 2021 but when i booted it in fastboot mode it shows as lenovo composite ADB interface.
[Lenovo P11] serrbruh:
maybe you can try right-click Lenovo Composite ADB Interface and left click Uninstall device

then disconnect your tablet, check tablet in fastboot, connect tablet to PC, check what appears in device manager
[Lenovo P11] opurarafael24:
I tried it. It now only shows "Android" in other devices. Fastboot devices command can't also detect it
[Lenovo P11] serrbruh:
Ok then I think you try reinstall Lenovo usb driver again
[Lenovo P11] opurarafael24:
Already did. Lenovo composite adb interface shows again. When i try fastboot device command it detects the tablet.
[Lenovo P11] opurarafael24:
Maybe it has something to do with the driver version? May i know your lenovo driver version? I'm using 1.1.34
[Lenovo P11] serrbruh:
I am using same version as you. Lenovo 1.1.34.

If the device manager was different from the last time you tried to lock bootloader then I guess you can give it a try and lock with the batchfile
[Lenovo P11] opurarafael24:
Just so you know last time i was able lock my bootloader at the latest zui 13.1.560 with no problem at all. i am only trying your method to see if will be able to lock at zui 13.1.550 like you did to see if will be able to restore my widevine to L1.
[Lenovo P11] Vinkel:
Hi, first of all thanks to all the guides and tips. I had Sahara error at first when trying to flash, but got it fixed. Now I have updated to 13.1.560 manually with all the update files, and locked the bootloader, but I'm only getting Widevine L3. Any tips on how to get Widevine L1?
[Lenovo P11] opurarafael24:
Same issue as mine.
[Lenovo P11] Hertz_Silva:
Olá, pessoal! Sou do brasil. Seguir todos os passos. Antes bloquear o bootloader eu atualizei até a versão 13.1.560. Deu tudo certo, em 16/10/2022.
[Lenovo P11] Hertz_Silva:
Obrigado a todos que ajudaram! Agora estou 100% com o tablet!
[Lenovo P11] felipetobias:
Como vc conseguiu instalar a versão 13.1.560? Eu estou na 13.1.555 ST e não consigo para poder bloquear o bootloader.
[Lenovo P11] carlosfla21:
TB-J716F - Google Drive

drive.google.com
[Lenovo P11] felipetobias:
Muito obrigado, fiquei procurando nas mensagens mas não tava achando. Valeu mesmo!
[Lenovo P11] kmc77:
como você conseguiu consertar o erro no Sahara ao fazer o flash?????
[Lenovo P11] Vinkel:
I followed this guide https://xdaforums.com/t/install-stock-rom-xiaoxin-pad-pro-2021-tb-j716f.4347951/page-7#post-85995367

First I uninstalled the driver, rebooted pc, installed driver and chosing the Ertherenet option instead of just leaving in on the WWAN setting.
[Lenovo P11] zxcv88:
This is such a nice guide, thanks!

Just today I really messed something up with my partitions and had to revert to the stock ROM using QFIL. Only issue was that QFIL was throwing errors when I tried to flash. What ended up fixing it was to enter EDL, unplug the device, set up QFIL and then plug it in just before starting the download. So maybe you could add it in your guide.

Cheers!
[Lenovo P11] DRdefaite1:
Hi everyone,

First thanks for this it worked for me, but after i get the chinese rom, i lost wifi 5ghz, does anyone ever saw this ?

thanks for reply
[Lenovo P11] Gara-Sama BR:
I did everything step by step, but inffortunately the device still stuckl in fastboot mode. I made another procedure trough sn.img (another serial number) and i was able to unlock the bootloader. So Right now, im flashing e starting again. Thank you all!!

Portuguese

Eu fiz tudo, porém eu lockei uma global rom pra saber se ia pro l1, e nada deu certo. Flashei e nada. pra desbloquear tive que mudar o serial number e fazer o unlock com um arquivo sn.img de outro pra depois voltar o número orignal ( o que ainda vou fazer), mas já está desbloqueado. qualquer dúvida só mandar um email
[Lenovo P11] carlosfla21:
Meu wifi de 5ghz também parou de funcionar, já fiz rect de fábrica, mas não voltou. Mas fui na casa de um parente e o wifi de 5ghz funcionava na casa dele. O que pode ser algum problema com o nosso wifi. Mas logo quando coloquei a primeira atualização do ZUI 14, o wifi 5ghz funcionou, na segunda atualização do zui 14 não funcionou mais.
[Lenovo P11] Gara-Sama BR:
still unlocked? If yes, install the stock rom +updates again and then lock .

Confirmed activation tablet locking on version 13.1.560 and no OTA updates to do.
[Lenovo P11] Gara-Sama BR:
At some point, reading a lot, found that some 5ghz spectrum is reserved to China. I don't know how this affect the network band connection with the location device management and the device out of China . 5ghz work on version 13.1.560. Here there's no OTA update to do, and i will do not mess up with file system again. Only OTA

Did u update ZUI via file system update or OTA ? Lock or unlock Bootloader ?
[Lenovo P11] carlosfla21:
The zui 14 has two updates, the first I did manually and the second via ota. But to do this via ota you need to use Chinese VPN. But people who are on ZUI 13 can now upgrade to ZUI 14 with android 12 directly via ota with chinese VPN
[Lenovo P11] blanket:
Already relocked and upgraded to zui14
[Lenovo P11] victorfranca002:
Deu certo para mim! Depois de muita pesquisa e sofrimento.

Eu tinha tentado bloquear o bootloader, mas tinha travado o tablet na tela de fastboot e precisava do arquivo sn.img da Lenovo.

Graças a Deus achei um post de um membro da comunidade que me salvou (Aqui)

Então depois de resolver o problema com o bloqueio da Lenovo, instalei a ROM original e fui atualizando manualmente até a versão 13.1.560.

Na versão 13.1.560 Travei o Bootloader novamente e consegui Widevine L1.

Obs.1: Antes de iniciar o procedimento de bloqueio eu me certifiquei que os drivers da Lenovo estavam instalados e desinstalei os Drives da Qualcomm. Obs.2: Após iniciar o procedimento de bloqueio, quando chegou na tela de escolha do bloqueio eu removi o cabo usb do tablet e selecionei para bloquear ele.
[Lenovo P11] victorfranca002:
It worked for me! After much research and suffering.

I had tried to lock the bootloader but it had crashed the tablet at the fastboot screen and needed the sn.img file from Lenovo.

Thank God I found a post from a community member who saved me (Here)

So after solving the problem with the Lenovo lock, I installed the original ROM and manually updated it to version 13.1.560.

In version 13.1.560 I crashed Bootloader again and got Widevine L1.

Obs.1: Before starting the blocking procedure I made sure that the Lenovo drivers were installed and I uninstalled the Qualcomm Drivers. Obs.2: After starting the blocking procedure, when it arrived at the screen to choose the block, I removed the usb cable from the tablet and selected to block it.
[Lenovo P11] victorfranca002:
You need to follow the steps:

1 - Unlock Bootloader again

1.1. You need the sn.img file provided by Lenovo, but the website that provided this file is not working properly. Then you can try via the link (which is the easiest way, but it didn't work for me): http://cdn.zui.lenovomm.com/developer/tabletboot/ [your sn number]/sn.img

or follow the steps of this other guide (it worked for me): https://xdaforums.com/t/unlock-bootloader-without-proper-unlock-file-xiaoxin-pad-pro-2021-tb- j716f.4488343/#post-87420075

1.2 After getting the sn.img file, just perform step 8 of this tutorial.

2 - Now you install the original ROM

3- Manually update until version 13.1.560

4 - And now you can crash Bootloader again.

Extra Tips: - Before starting the lockout procedure I made sure the Lenovo drivers were installed and uninstalled the Qualcomm Drivers. - After starting the lock procedure, when I got to the lock screen I removed the usb cable from the tablet and selected to lock it.
[Lenovo P11] AndrewGr:
Please tell me how did you change the serial number to the one in the link in your article? I know I'm stupid, but I still don't understand
[Lenovo P11] AndrewGr:
after installing the original ROM, bootloop happens and nothing else
[Lenovo P11] cleibson@gmail.com:
Cara que bom que conseguiu.

Eu não entendo porque o meu está com widevine L3, pois o meu não tem root e está com bootloader bloqueado. A não ser que o antigo do tenha feito algo nele que não sei. Semana passada eu usei uma VPN CHINESA e atualizou automaticamente para a ZUI 14. Mas continua com Widevine L3. Sabe se tem alguma forma de mudar para L1?
[Lenovo P11] victorfranca002:
Suas configurações de desenvolvedor estão ativas? Cara depois que eu instalei a ROM original, eu tentei mexer o mínimo possível nas configurações. Só fui instalando as atualizações manualmente. Nem ao WIFI conectei, só conectei após o bloqueio do Bootloader. Opções do desenvolvedor também estavam desativadas, pois quando eu conectei o cabo usb, apareceu um pop-ups perguntando se eu gostaria de ativar a depuração usb com o pc e não precisei ativar as configurações do desenvolvedor para isso. Estou na versão 13.1.560, sei que se usar a VPN da para atualizar para ZUI 14, mas preferi não arriscar mudar mais nada kkk
[Lenovo P11] victorfranca002:
It would be like this: http://cdn.zui.lenovomm.com/developer/tabletboot/ha1q26z0/sn.img

But from what I've verified, it didn't work for you either, you'll have to do as I did and follow the steps in this guide: here
[Lenovo P11] cleibson@gmail.com:
kkk. Entendo. Não mexer em time que está ganhando.
[Lenovo P11] AndrewGr:
okay, I was able to unlock, but after installing the operating system, bootloop occurs and a suggestion to erase the data, which also does not help. Do you think there is still a chance to fix the device?
[Lenovo P11] kEYWASHINGTON95:
Vim agradecer o seu tutorial. Vários problemas ocorreram até que eu consegui voltar ao normal meu tablet.

Mas a comunidade do fórum me ensinou muita coisa. Obrigado de coração!!!!!!!!!!

Quem não está seguro tentem baixar a imagem do tablet colocando o número de série na url do navegador, aqui no XDA tem um tópico onde disponibilizam um link.

Para desbloquear o bootloader vcs terão que pegar essa imagem e colar dentro do arquivo "tools" no caminho : "C:\Users\PICHAU\Desktop\Lenovo Xiaoxin P11 Pro 2021 (TB-J716F)\4 - Bootloader (Opcional)\LockUnlockBootloader \LockUnlockBootloader\ferramentas"

Depois é só colocar os comandos e verificar se o bootloader está desbloqueado, e aí é só alegria!!!!!!!!!

Origado XDA de coração!!!!!!!!!

------- BRASIL------------------
[Lenovo P11] Radhouene90:
I was able to lock my bootloader using the 13.1.560

it`s 22/11/2022 19:09

Thank you all for your helps.
[Lenovo P11] azwina:
i also have this same problem same like you,after flash original rom before my rom is zui13-v560. any member can help ??
[Lenovo P11] azwina:
now my tablet stuck at fastboot mode with "start", cannot connect to root device so how to unlock bootloader ? that link you giving cannot access to get sn.img any other method can download ?
[Lenovo P11] nananuy:
Is there a way to lock bootlader with 14.0.127 installed?
[Lenovo P11] devexa:
I've locked my device 3 months ago, it worked fine, I had Widevine L1 and everything , until I noticed 3 days ago that my widevine certificate downgraded to L3 even though the device is locked + the ''OEM CRYPTO API Version" downgraded too to v15 instead of v16. I was on .560 .

Naturally I thought that upgrading to ZUI 14 would fix this issue .. But it did not ..

So, I unlocked the bootloader, downgraded to 12.6.211 rechecked ''OEM CRYPTO API Version" and, reupgraded to v16 ! I did all the updates up to .560 ! At each update, I rechecked the version, and it remained v16. Until I updated to ZUI 14 through OTA with a chinese VPN and then the ''OEM CRYPTO API Version" changed back to v15. I tried relocking the bootloader, but it remained not only in v15, but I was still stuck with Widevine L3 ... This is such a weird, frustrating and disappointing issue from Lenovo ...

The problem is that after I upgraded to ZUI 14 ... I'm not able to lock the bootloader when I'm on .560 as it

Note that my brother (with the exact same tablet on .560) did not lose hist widevine L1 certificate.

Any help would be really appreciated
[Lenovo P11] gunalarix8:
do you familiar with QFiL, i think you can try to clone the partition from your working tablet L1 (the brother) and apply on your current tablet. i mean whole partition. 😂
[Lenovo P11] ShazlieyAzizan:
Quick question, my bootloader is locked and I'm at zui14, is it possible to flash zui12 using qfil method? Too scared to try because my warranty has ended two days ago and the reason why I want to roll back because I want to sell the tablet, and the buyer demand PC MODE which is only available on ZUI13. ( basically still can access in ZUI14 using SetEdit but too much work huhu) Do let me know if anyone is able to flash ZUI12 after installing ZUI14 on your tab, thank you in advance! ( Copy and paste comment from another post cause both has the same topic )
[Lenovo P11] f1tm0t:
You can flash ZUI 13: https://xdaforums.com/t/tb-j716f-13-0-430_st_220113-full-rom-for-qfil-qpst.4524453/
[Lenovo P11] Leonardo Borges barros:
E comprei o tablet p11 pro 2021 no anúncio diz que o botloader é desbloqueado e ele não recebe atualização OTA será que posso fazer esses seus passos quero colocar a Netflix em Full HD e outras streaming
[Lenovo P11] Nairolf77:
Hi all,

I've just received my new p11 pro 2021. I try tu install th original rom. I do all the step but when I had flashed I have an error on QFIL

donwload Fail:Sahara Fail:QSharaServer Fail:processfail

and now my tab seem to be brick I try to change the USB cable but my computer no longer recognise my yab. Unknow device.

If someone can give me any help he wil be very welcom

Thanks a lot
[Lenovo P11] juyran:
Did you change back the serial number or just kept the hahahaha?
[Lenovo P11] kennyboda:
Hi everyone!

I would like to send my kudos to CleberJorge, that tutorial saved my tablet! I wouldn't know what to do without the members of this forum.

I'm currently in v14.0.127 via OTA. Anyone has tried to lock the bootloader in this version with success?

Thanks a lot!
[Lenovo P11] redblood252:
How can I add more languages or more keyboard inputs (e.g other languages or emojis) ?
[Lenovo P11] AnVar68:
I solved a similar problem using QPST Tool 2.7.474.
[Lenovo P11] Saldanha25:
http://
[Lenovo P11] CleberJorge:
Olá, quando eu estava com o Tablet eu segui os mesmos passos do guia que eu fiz e deu certo

Aconcelho que antes de seguir o guia, faça uma pesquisada antes e veja se está funcionando o método do meu guia.

Lembrando que possui riscos, e se talves vc não tiver muita experiência com custom ROMS, faça por sua conta!

PESQUISE E PERGUNTE AQUI NO FORUM, SEMPRE É BOM ANTES DE FAZER A MODIFICAÇÃO

vlw
[Lenovo P11] Leonardo Borges barros:
O sobre esse esquema da Netflix achei sacanagem ter um aparelho bom com tela 2k e oled e não funciona Netflix em Full HD mais assim que chegar vou pesquisar mais tbm já lidei com custom rooms mais em celular