Friday, February 6, 2015

Lenovo K910 4G LTE, How to Root and Unlock Fastboot for Android 4.4

Lenovo K910 4G LTE, How to Root and Unlock Fastboot for Android 4.4 - I took this guide on the russian forum, this is how you can root Lenovo K910. This guide is for Lenovo K910 4G LTE with only 1 SIM that only can bought outside china country so if you Lenovo K910 using 2 SIM please don't attempt to follow this guide.
This guide is will root Lenovo K910, and will make Lenovo K910 lose it warranty. This guide is also has possibility to brick your device so please very consider it before attempt to follow.
Before starting following this guide better to make backup your applications and data on your device because it will erase all your data and applications.

Disclaimer :
This guide for educational purpose only, We not responsible if your device bricked after following this tutorial (DWYOR)

Lenovo K910 4G LTE, How to Root and Unlock Fastboot for Android 4.4

Requirements :
Downloads :
Lenovo K910 4G LTE, How to Root and Unlock Fastboot for Android 4.4
  1. Download all the files required above. First thing to do is we need to install S129 first to your device, follow below guide to install it in Lenovo K910

    • make folder sdfuse on root your internal memory
    • extract K910L_S129_140202 on your computer, you will find .qsb file. Move this .qsb file to sdfuse on your internal memory. Make sure that only one file qsb in sdfuse folder.
    • turn off your device, turn on Lenovo K910 while holding Power button + Volume Down button, it will bring you to recovery mode.
    • in the menu, select Update sd. On the recovery you can use Volume Up and Volume Down for navigate and Power button to enter the menu.
    • wait until installation finish and reboot your device.

  2. Installing custom recovery TWRP v2.7.1.1, Copy update_S214_unlock and Update_SuperSu_v2.00 to your internal memory root, don't place it inside the folder.
  3. Extract TWRP_v2.7.1.2_K910 on your computer. for example on the c:\K910\, using command prompt navigate it to extracted folder
    Lenovo K910 4G LTE, How to Root and Unlock Fastboot for Android 4.4

  4. Connect your device on the computer and the run  0_run_twrp_recovery_K910L.bat from inside TWRP extracted folder, wait the process until finish. This will installed custom recovery TWRP v2.7.1.1 on Lenovo K910.
  5. Disconnect your device, Turn off and turn on again while holding Volume Down + Power button, this will bring you to recovery mode. 
  6. Install Update_SuperSu_v2.00 and update_S214_unlock from recovery mode.

  7. Done.
The guide is very long, if you confuse you can contact me or leave any comments and i will try to help you. This guide will install custom recovery TWRP first after that you can root or update to S214 from custom recovery installation menu. Leave comments if you got any problem or broken links regarding this guide. Thank You

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Related : Lenovo K910 4G LTE, How to Root and Unlock Fastboot for Android 4.4

62 comments:

  1. Current version my phone's K910L_S219_141211. Can I root by your guide?
    Thank you! :)

    ReplyDelete
    Replies
    1. Hi,
      My guide is for K910 with 1SIM, so if your device is 1SIM you can follow this guide

      Delete
    2. Hi Andy,

      I have downloaded all the files, created a folder on Internal Storage of "sdfuse" and copied the qsb file. But, when boot the phone in recovery mode, I dont see "update sd" option.

      Please help.

      My phone details:
      Lenovo K910L
      Software Version: K910L_S219_141211
      Andoid Version: 4.4.2

      Delete
    3. Hi,
      Maybe you already change the recovery into custom, uodate sd only available on stock recovery. Could you tell me what menus on your recovery?

      Delete
    4. Thanks for your quick response. Much appreciated.
      I get the following options in recovery:
      - reboot system now
      - apply update from ADB
      - wipe data/factory reset
      - wipe cache partition
      - apply update from internal storage (if I choose this in sdfuse folder qsb file is not shown)
      - apply update from cache.

      Many thanks in advance.

      Delete
    5. I think your recovery already update to custom recovery, or maybe your device is not 4G Lte but dual SIM Wcdma because the original 4G LTE have sdupdate on recovery

      Delete
  2. It is single sim removable and not 4G LTE, I purchased in United Arab Emirates.

    No worries, once again many thanks.

    ReplyDelete
    Replies
    1. Ah okey, so sorry i cannot help you solve the problem

      Delete
  3. Replies
    1. Thank you for positive comment and visit

      Delete
  4. Just i want to ask if arabic language avalible in this rom

    ReplyDelete
    Replies
    1. Hi,
      I think it available but for sure i dont know. This rom contains more than 70 languages

      Delete
  5. How to unlockbootloader this device? :(

    ReplyDelete
    Replies
    1. i don't have the guide bt you can see how to do it on this guide http://forum.xda-developers.com/android/development/lenovo-k910-bootloader-unlock-t2930904

      Delete
  6. Hey Andy !!!
    First off stellar work bro ...........really appreciate ur efforts. I really want to try ur method out coz so many of the others i have tried have failed, but feels like there is light at the end of the tunnel with ur method!!! My only issue is ---i cant download any of the files through the links u provided ...maybe coz the links are broken so i checked google by the same file name ...there are no alternative download sources. Any help will be great !!!
    Thanks in advance !!!! Keep up the work !!!!

    ReplyDelete
    Replies
    1. Hi,
      First thank you for visit and second i will soon check the link and if it broken i will as soon as possible replace the link

      Delete
  7. Mas Andy, success for me rooting and flash latest fw for my K910L, thank you verymuch, and now in KK how to update this twrp v 2.7.1.2. to twrp v 2.8.6.3 thank you

    ReplyDelete
    Replies
    1. Hi,
      I think i don't have twrp v2.8.6 guide yet. Keep visit , i will soon write it

      Delete
  8. why when i tried to run trwp its failed?

    ReplyDelete
    Replies
    1. Can you give me more clue, not just failed. Give meore description so i can understand your problem

      Delete
  9. For Step 2 of your guide, do I have to unzip the two files first before copying them to the phone?

    ReplyDelete
    Replies
    1. Hi,
      No need to unzip it. Installing via custom recovery will need zip file

      Delete
  10. Hi installed custom rom on k910L, but google apps are close once you opened it so i tried reinstalling, i accidentally wiped the os,
    now im stock in lenovo logo, i tried pressing volume up + down + power button, then teamwin is displaying but thats all i can see, it keeps on blinking.
    i tried to run 0_run_twrp_recovery_K910L.bat while my phone is connected to pc(note my phone is in recovery mode with the teamwin banner), it displays the serial, but thats all it didnt finished.

    ReplyDelete
    Replies
    1. hi,
      to fix the bootloop is try to re flashing your device with the new firmware, you can follow this guide http://bit.ly/1mHV4Yg. but always remember that re flashing has risk so do with your own risk, i am only suggesting what must to do.

      Delete
  11. my phone had been bricked!Any tutorial to unbrick it back to normally?

    ReplyDelete
    Replies
    1. hi, if you device still recognize by the computer then try to install new firmware to your device using this guide http://bit.ly/1mHV4Yg but if computer cannot see your device than bring your device to lenovo service center.

      Delete
    2. my phone keep rebooting... it cant boot into recovery menu interface

      Delete
    3. same as my answer above,
      but if you afraid then dont do anything just bring your device to Lenovo service center then will fix for you.

      Delete
    4. i'm tryying(downloading those stuff).anyway does rooting require phone that had unlocked bootloader?

      Delete
    5. all modification need or require unlocking bootloader, will fail if you device still have lock bootloader.

      Delete
    6. i downloaded the file,so now using fastboot to update?(i only can use fastboot now)IF yes,it need a text document called "android-info.txt",how can i get that?

      Delete
    7. What you gone to do? It for rooting and unlock bootloader and no need android-info.txt
      Just follow the above step, and there isno fastboot modeneeded

      Delete
    8. Unbricked phone... any solution?

      Delete
    9. If. Your device still recognize by computer try using this guide http://bit.ly/1mHV4Yg, but if computer cannot detect then sorry i cannot help

      Delete
    10. i success unbricked it by using otg cable flash the 214 version of firmware you given.hooray~~~!A question that had brothers me since i bricked my phone>>>should root the phone 1st or unlock the bootloader goes 1st...?

      Delete
    11. The first must be unlock bootloader, after that you can root, install cwm and etc.

      Delete
    12. How do you unbricked via OTG sir? I've got bootloop only recovery can acces volume up+down+power can access. Somebody help?

      Delete
    13. It is custom recovery or stock if custom just find rom in zip then install it via recobery

      Delete
  12. Hi can you explain more on step 3. I ran the bat file but device was not found

    ReplyDelete
    Replies
    1. Are you already read how to enable debugging for Lenovo K910? Computer will not detect your device if driver not install and debugging not enable from your device

      Delete
    2. Issue solved. I run another lenovo usb driver and its ok now. The bat file can find the phone

      Delete
    3. Good job, congratulations glad to hear that. Sorry cannot reply previous comment

      Delete
  13. Can i update after i flash the stock rom.

    ReplyDelete
    Replies
    1. Yes but your current ROM must be unlocked first, then just follow above guide. Step by step until you can successful root your device. Above guide has risk that must be consider first

      Delete
  14. How can't I boot into twrp again after I finish all this step because I want to change rom to cm12.1

    ReplyDelete
    Replies
    1. Seethe step number 5 if you want to boot to recovery mode

      Delete
  15. boss ane udah ikutin petunjuk diatas pas udah update sdcard malah ngk bisa booting cm retart bolak balik
    solusinya gan,,, soalnya masuk recovery jg ngak bisa

    ReplyDelete
    Replies
    1. give device specification, 1 sim or 2 sim.
      try reflash with your original firmware, or try the step 1 again, then go to recovery do factory reset.

      Delete
  16. mine is 1 sim
    usb not detection cause just restart i can't reflash

    ReplyDelete
    Replies
    1. Try turn off your device and try to reflash. When you turn off device and connect to pc it will detect. If you can just try to go to recovery mode

      Delete
  17. hi, can you pls help me,i just bought a lenovo k910L and updated via OTA, but the update got error so my phone stuck at stock recovery, now i learned that i can flash the stock firmware via adb sideload, i have managed to go through the adb sideload process but during flash the recovery says "wrong footer" and "signature verification failed". what am i doing wrong here? this is the firmware i was trying to flash = https://docs.google.com/uc?export=download&confirm=FN1g&id=0B2VnoLGhgW7UczRlQV9XQ1YtQW8

    ReplyDelete
    Replies
    1. try re download the ROM, it might be corrupt or something. but you must ask the uploader for this issue i think.
      look at this http://bit.ly/1zNNjLT

      Delete
  18. hi sir, i already downloaded 8 times and cant find other roms, maybe you can help me if you other rom or the stock rom you have thank you

    ReplyDelete
    Replies
    1. sorry i dont have another ROM, then maybe you can ask the uploader why you cannot flash the downloaded ROM, i already give you the link for my ROM.

      Delete
  19. Hi, thank you for your guide.
    I do not understand one thing:
    Step 1: you are flashing K910L_S129_140202.
    Step 4: you run TWRP.
    If you can run TWRP in this step, it means that the bootloader is unlocked already.
    So, why you are installing update_S214_unlock? What is it for?
    Yes, I've read: update_S214_unlock ↦ 1.19 Gb, this is update ROM to the latest version for Lenovo K910, and already been unlock fastboot so you can root the phone through this ROM.
    But you have TWRP BEFORE installing update_S214_unlock.
    Help me understand, please.
    Best Regards

    ReplyDelete
    Replies
    1. If you want to keep S129 that no need to do the last step, it update the ROM to S214 and it unlock. Remeber once you unlock the bootloader you will not able to update OTA or recieved an update.

      Delete
    2. Thank you very much! I understand :)

      Delete
    3. Your welcome, thank you for visit and leave comments

      Delete
  20. my device not found when I running 0_run_twrp_recovery_K910L.
    could you give me sugggestions pls? thanks

    ReplyDelete
    Replies
    1. then check the driver is it installed correctly

      Delete
  21. sorry bro,
    i have lenovo vibe z k910L (singe sim)..

    can i upgrade my rom to cynogenmod 12.1
    can u show me the guide

    ReplyDelete
    Replies
    1. if CM12.1 available for download then you can.
      usually CM install with zip, so just root, install custom recovery than install cm from custom recovery.

      Delete