Question Legion Y700?

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Contrec

Member
Jun 3, 2023
13
0
I'm just blocking on QPST software that doesn't sees the tablet. Maybe I'm noy in the good discussion about that. That's why I'm asking for complete tuto. (installed Qualcomm drivers, Lenovo drivers, tried on several PCs etc)

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xnappo

Senior Member
Aug 15, 2003
268
93
I'm just blocking on QPST software that doesn't sees the tablet. Maybe I'm noy in the good discussion about that. That's why I'm asking for complete tuto. (installed Qualcomm drivers, Lenovo drivers, tried on several PCs etc)

View attachment 5925421
You have read through this?
 

Contrec

Member
Jun 3, 2023
13
0
You have read through this?
Yes I'm on it but unable to make my PC see the tablet. I continue the discussion in this thread "[GUIDE] Unbrick Lenovo Y700 tablet" thank you for helping !
 

econsave

Member
Jun 5, 2023
5
0
Bricked Lenovo Y700? Follow this guide.


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, and I could not connect to Wi-Fi, and other problems...
I tried flashing back to stock with QFIL, which put the device in a bootloop. I will explain why later on.

I also lost recovery mode due to trying to solve the problem, and now I was stuck with either showing the bootloader screen, or restarting the tablet, which brought me back to the bootloader.

So the tablet was now genuinely useless. This is what I did to bring back the stock ROM and later flash to crDroid 8.10.
Flashing boot.img, system.img or recovery.img was no luck.

First off, there is no need to have unlocked "USB debugging" before your tablet bricked.
Second, you don't need to have your "sn.img" file from Lenovo, you can unlock the bootloader using fastboot commands.
Fastboot commands works on the bootloader screen, without having ADB connection.

Start by downloading these four files:
Platform tools r33.0.2
QPST_2.7.496
Qualcomm_USB_Driver_v1.0
Lenovo Y700 tablet stock ROM


We'll start by unlocking your bootloader. You can do this from the bootloader screen. If you for some reason can enter recovery mode, enter fastboot.

1. Connect your tablet to your PC.

2. Open a terminal windows in the ADB folder. On Windows 11 this can be done by right-clicking inside the ADB folder and select "Open in terminal". If you don't have that option, try Shift + Right-click. If that doesn't work, you can always start the terminal by pressing Win + R, and type in "cmd" without citations. Now you have to navigate to your ADB folder by typing
Code:
cd (here you'll type in the location of your ADB folder)
Without the brackets.

3. When located, type in
Code:
fastboot devices
You should see your tablet in the list.
If not, try using another cable or USB port on your PC.

4. Now type in
Code:
fastboot oem unlock-go
Restart your tablet, and it should now say "unlocked" under "DEVICE STATE" in the bootloader.

5. Now you can start by installing the programs on your PC, QTPS, Qualcomm driver and platform tools.

6. Extract ALL files from your stock ROM to the "bin" folder in QTPS location (usually C:\Program Files (x86)\Qualcomm\QPST).
This will help with Sahara errors in QFIL.

7. Open QFIL from your QTPS bin folder, it installs with QTPS. Don't worry if it shows "No Port Available", we'll get to that. Your configuration should look like this:

View attachment 5741637

Your main window should look like this:

View attachment 5741639

Don't worry about the "status" window.

Hit "browse" in the "Programmer Path" window, and navigate to your QTPS bin folder. Select "prog_firehose_ddr.elf"
Hit "Load XML", and navigate to your QTPS bin folder. Now, select ALL of the "rawprogram" files (my first mistake, I only selected the "rawprogram_unsparse0.xml" file on first flash)

In the next window, select ALL of the "patch" files (my second mistake, I only selected the "patch0.xml file" on first flash).
Without doing this, you will only flash a portion of the ROM, and not all of the partitions needed.

8. Now it's time to reboot you tablet into EDL mode to be able to flash. Start your tablet by pressing VolUp + Power button.
If you can't turn off your tablet when connected to PC, just select "Power off", and just hold the VolUp button as soon as the device vibrates and reboots, keep holding until the screen flickers and turns off.

9. Now QFIL should detect the Qualcomm 9008 port. If not, hit "Select Port" and select the Qualcomm 9008 port.

10. Hit the now available "Download" button, and the flashing should begin. Allow it to run its course, and it should reboot the tablet when done. Might take a while.

If flashing won't start properly, you might have waited too long between entering EDL mode and hitting the "Download" button.
If so, disconnect your device, which might now be "dead".

Don't worry, you can fix this be holding VolUp + VolDown + Power button for a long time, say about a minute to be sure. Release the Volume keys some second before releasing the Power button.
Hit the power button again, and the tablet should boot to bootloader screen again.
Repeat the steps to enter EDL mode, and now hit the "Download" button in QFIL when it becomes available, don't wait too long.


You're done!

I recommend opening "Settings", enable "Developer" option, by pressing the "Build number" on the "About tablet" screen repeatedly until a pop-up appears saying "You are now a developer".
Open "Developer options" and hit "Enable USB debugging", it will allow you to run ADB commands from your platform tools folder.
If you want, you can again open the terminal in the platform tools folder and type
Code:
adb devices
It should now show your device in the list.

Now you can uncheck the "OEM unlocking" in the "Developer options" which should let you get OTA updates when available.

There are plenty of guides on how to flash different GSI's like crDroid, so I won't cover that here.

Enjoy your tablet!
i am new. can someone help me with the troubleshoot?

i did all the way with the device restart "Vol up + power button". But it cannot detect any port. "No port available"

1) how do i get the port?
2) how do i know if the flash was done properly?
 

econsave

Member
Jun 5, 2023
5
0
i am new. can someone help me with the troubleshoot?

i did all the way with the device restart "Vol up + power button". But it cannot detect any port. "No port available"

1) how do i get the port?
2) how do i know if the flash was done properly?
It seems like "Vol up + power button" could not get into EDL
 

econsave

Member
Jun 5, 2023
5
0
i realize that when i typed in "fastboot devices" in the cmd window, it doesnt detect my tablet as well...
i have changed cables and ports to no avail...
 

xnappo

Senior Member
Aug 15, 2003
268
93
Android Device isn't proposed in the device list (windows 11), even if I try to see all devices, I made ALL the manufacturer devices without ANY Android mention<;;;
It isn't going to say Android, I can't remember what it is, but it it fairly obvious. Just look for what gets added to the list.

I assume you have tried multiple cables? Does Windows say beep-boop when you connect the cable?
 

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  • 3
    Found an update 15.0.418 for Y700 (2022) today. Update log:
    1. Optimize the caller ID in wechat video
    2. Optimize the audio effects in the game
    3. Update the security patch
    4. Optimize system stability

    OTA zip (15.0.361-15.0.418) and stock boot.img are uploaded to MEGA:


    Steps to keep the current Magisk installation after an OTA:
    1. Enable ADB debugging
    2. (Optional) Enable logcat and search for ".zip" after starting to download an update. This reveals the OTA URL (example: https://ota-cdn.lenovo.com/firmware/2024219134334518-6709.zip). The OTA zip file can be used for a local install from stock recovery.
    3. Pause the OTA before the download completes
    4. If there's already a Magisk backup of current boot.img, go to Magisk app -> Uninstall Magisk -> Restore Images
    5. If there's no backup, the Restore Images command would fail. For the OTA installation to succeed, you need to manually flash the stock boot.img of your current OS version to the correct boot_a/boot_b partition.
      1. To get the current partition suffix, run from adb shell (su):
        Code:
        /bin/getprop ro.boot.slot_suffix
      2. To flash a boot file in internal storage, run from adb shell (su):
        Code:
        dd if=/sdcard/<path-to-boot.img> of=/dev/block/platform/soc/1d84000.ufshc/by-name/boot_a (or boot_b)
      3. Swap "if" and "of" to backup the current (Magisk-patched) boot.img if needed.
    6. Install the OTA and wait for it to finish, DO NOT REBOOT NOW
    7. Go to Magisk -> Install -> Install to Inactive Slot (After OTA). This will save a backup for the new boot.img after OTA to /data/magisk_backup_*.
    8. Reboot and Magisk will remain active!
  • 13
    Bricked Lenovo Y700? Follow this guide.


    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, and I could not connect to Wi-Fi, and other problems...
    I tried flashing back to stock with QFIL, which put the device in a bootloop. I will explain why later on.

    I also lost recovery mode due to trying to solve the problem, and now I was stuck with either showing the bootloader screen, or restarting the tablet, which brought me back to the bootloader.

    So the tablet was now genuinely useless. This is what I did to bring back the stock ROM and later flash to crDroid 8.10.
    Flashing boot.img, system.img or recovery.img was no luck.

    First off, there is no need to have unlocked "USB debugging" before your tablet bricked.
    Second, you don't need to have your "sn.img" file from Lenovo, you can unlock the bootloader using fastboot commands.
    Fastboot commands works on the bootloader screen, without having ADB connection.

    Start by downloading these four files:
    Platform tools r33.0.2
    QPST_2.7.496
    Qualcomm_USB_Driver_v1.0
    Lenovo Y700 tablet stock ROM


    We'll start by unlocking your bootloader. You can do this from the bootloader screen. If you for some reason can enter recovery mode, enter fastboot.

    1. Connect your tablet to your PC.

    2. Open a terminal windows in the ADB folder. On Windows 11 this can be done by right-clicking inside the ADB folder and select "Open in terminal". If you don't have that option, try Shift + Right-click. If that doesn't work, you can always start the terminal by pressing Win + R, and type in "cmd" without citations. Now you have to navigate to your ADB folder by typing
    Code:
    cd (here you'll type in the location of your ADB folder)
    Without the brackets.

    3. When located, type in
    Code:
    fastboot devices
    You should see your tablet in the list.
    If not, try using another cable or USB port on your PC.

    4. Now type in
    Code:
    fastboot oem unlock-go
    Restart your tablet, and it should now say "unlocked" under "DEVICE STATE" in the bootloader.

    5. Now you can start by installing the programs on your PC, QTPS, Qualcomm driver and platform tools.

    6. Extract ALL files from your stock ROM to the "bin" folder in QTPS location (usually C:\Program Files (x86)\Qualcomm\QPST).
    This will help with Sahara errors in QFIL.

    7. Open QFIL from your QTPS bin folder, it installs with QTPS. Don't worry if it shows "No Port Available", we'll get to that. Your configuration should look like this:

    QFILconfpng.png


    Your main window should look like this:

    qfil.png


    Don't worry about the "status" window.

    Hit "browse" in the "Programmer Path" window, and navigate to your QTPS bin folder. Select "prog_firehose_ddr.elf"
    Hit "Load XML", and navigate to your QTPS bin folder. Now, select ALL of the "rawprogram" files (my first mistake, I only selected the "rawprogram_unsparse0.xml" file on first flash)

    In the next window, select ALL of the "patch" files (my second mistake, I only selected the "patch0.xml file" on first flash).
    Without doing this, you will only flash a portion of the ROM, and not all of the partitions needed.

    8. Now it's time to reboot you tablet into EDL mode to be able to flash. Start your tablet by pressing VolUp + Power button.
    If you can't turn off your tablet when connected to PC, just select "Power off", and just hold the VolUp button as soon as the device vibrates and reboots, keep holding until the screen flickers and turns off.

    9. Now QFIL should detect the Qualcomm 9008 port. If not, hit "Select Port" and select the Qualcomm 9008 port.

    10. Hit the now available "Download" button, and the flashing should begin. Allow it to run its course, and it should reboot the tablet when done. Might take a while.

    If flashing won't start properly, you might have waited too long between entering EDL mode and hitting the "Download" button.
    If so, disconnect your device, which might now be "dead".

    Don't worry, you can fix this be holding VolUp + VolDown + Power button for a long time, say about a minute to be sure. Release the Volume keys some second before releasing the Power button.
    Hit the power button again, and the tablet should boot to bootloader screen again.
    Repeat the steps to enter EDL mode, and now hit the "Download" button in QFIL when it becomes available, don't wait too long.


    You're done!

    I recommend opening "Settings", enable "Developer" option, by pressing the "Build number" on the "About tablet" screen repeatedly until a pop-up appears saying "You are now a developer".
    Open "Developer options" and hit "Enable USB debugging", it will allow you to run ADB commands from your platform tools folder.
    If you want, you can again open the terminal in the platform tools folder and type
    Code:
    adb devices
    It should now show your device in the list.

    Now you can uncheck the "OEM unlocking" in the "Developer options" which should let you get OTA updates when available.

    There are plenty of guides on how to flash different GSI's like crDroid, so I won't cover that here.

    Enjoy your tablet!
    8
    New ota soon. I hope this fix all the issue
    00677QGply1hcugimqocmj315o1jk7vi.jpg
    8
    Hi all.
    I just got this tablet yesterday.
    Language available on tablet are chinese and english maybe (morelocale2 could be useful)
    Google play services can be download directly from ZUI app store inside the tablet.
    Widevine L1.
    not sure about root or unlock bootloader (didn't use android device for a long time)
    7
    Okay. I have managed to do everything from combined insights. So, let me save you guys the trouble I had by writing my proces down (and for myself for the future).
    I came from the 'global rom'. And wanted to end with 13.1.578 ROOTED

    1. Download this file. It contains the stock firmware on 13.0.586. Unzip it, and find the recovery.img as we need it later.
    2. Upgrade all the way you like through OTA.
    3. Flash TWRP from here. Know that it is a 'faulty' version with only a line on top of the screen. And this vbmeta file. Place both files in your ADB folder.
    4. Use ADB to extact the boot.img from the version you are on.
    4.1 Boot into the bootloader (adb reboot bootloader).
    4.2 disable AVB (not sure this is necessary, but it worked for me) by sending the following commands:
    fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img
    fastboot erase userdata
    4.3 Instal TWRP by sending this command : fastboot flash recovery recovery.img (note that you use the name you gave your TWRP file)
    4.4 reboot in recovery mode (fastboot reboot recovery/manually on the tablet)

    Now the TWRP recovery should load, with only a line on top, and nothing else.

    4.5 In the TWRP recovery enter: adb shell (you should see a # appearing in the line)
    4.6 Send these commands out:
    dd if=/dev/block/bootdevice/by-name/boot of=/sdcard/boot.img
    adb pull /sdcard/boot.img stock_boot.img


    what this does, is extracting the boot.img of that specific version you are running, and placing a copy of it into your adb folder.
    4.7 send these commands to get back to the bootloader:
    twrp reboot bootloader

    5. Flash back the stock recovery. If you followed the guide, you have the stock recovery from step 1. Give it a fancy name, and place that file in your adb folder and sending this command:
    fastboot flash recovery yourfancyname.img
    fastboot reboot


    Now it may give some warnings and errors. It told me to do a factory wipe, wich was okay for me. After that the tablet starts normally. Stock firmware, but still on the same version I wanted.

    6. Now the easy part starts. The stock_boot.img you got in step 4.6, should be on your pc. After the inital setup on the tab, place that in your root folder. Download Magisk and install it on your tablet. When it is installed, click on 'install' and 'select and patch a file'. Select the stock_boot.img you moved to the root of your tablet. The patched file will be in your download folder. Transfer that patched file to your adb folder on the computer.

    7. Go into adb and boot the tablet into recovery mode (this should be the stock recovery again): adb reboot recovery.

    8. In recovery mode, go to fastboot. It'll say fastbootd on top.

    9. Enter this command: fastboot flash boot patched-file-of-magisk.img

    10. Restart the tablet. Congrats, you now have rooted your desired version.

    It might be to much info, but I wish I had these steps. It was late yesterday. Very late...So to save you the troubles, I present you my humble guide. If you have improvements in the steps or instructions, please let me know!!
    6
    Greeting Y700 users 😋
    I found an article regarding y700 with gsi
    but it is in japanese
    very detailed guide