yashsingh1/xdaforums huggingface dataset:
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] arpit_nnd:
Flash TWRP again and reboot into recovery via hardware keys once.

It should stick after that.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] nstream:
hi guys, i just wanted to check, does this phone (c50 version) have fm radio (non streaming kind)?
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] arpit_nnd:
From what I have heard, there's no FM radio on the Chinese variants either. They just come with an Internet radio client.

But then I don't own the Chinese variants and could be wrong.

PS: Please don't post off-topic posts here.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] nstream:
is it possible to flash the rom at the beginning of this tread and get fm radio?
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] arpit_nnd:
No, none of the firmware available in this thread have FM radio support.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] Mahender333:
Problem while unlocking bootloader

Hi,

Can any help me how to unlock bootloader for S217 ROM by using command fastboot oem unlock-go.

I tried many times and getting as ' Waiting for any device' but attached my device ( by checked using adb devices)
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] arpit_nnd:
To run Fastboot commands, the device must be in Fastboot mode.

I believed that people who attempt to unlock bootloaders would be aware of such basics and therefore didn't bother to mention this explicitly.

As I have been asked this question a number of times, I have updated the OP accordingly.

Good luck.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] gr8spot:
I am getting same issue like Mahender333 is facing. I have already done fastboot with different mobiles but this device i am getting "waiting for device". Am i right with Press down button and power at same time for fast boot mode? If not then pls tell how do we go into fastboot mode?
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] arpit_nnd:
Press and hold Volume up + Volume down and plug in the USB cable(already connected to PC).

You may also use the ADB command "adb reboot bootloader". Obviously, you need a working device with USB Debugging turned on and ADB installed on PC.

Device stays on Lenovo logo while in Fastboot mode.

Check point 2 in OP for all modes X3a40 can boot into.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] ZanX_FoX:
Always stuck at boot loop everytime I tried ..:crying:
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] arpit_nnd:
Which device? Are you on S217?
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] ZanX_FoX:
Yes, here's the step of what I did

-enable USB debugging

-Power Off

-Then Open TWRP folder on PC (twrp downloaded from the link above)

-hold shift key then right click and click on open command window here

-boot into EDL mode (hold both volume keys and plug in)

-Fastboot flash recovery twrp.img (boot into recovery but stock recovery shows up)

-then repeat again but use the command

-fastboot boot twrp.img

-reboot into recovery works fine and finished setup reboot my device stuck at bootloop
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] arpit_nnd:
At least read the OP well. :eek:

It is mentioned.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] ashok225123:
Doubt

My device not detected on fastboot mine is old pc i have insalled Windows 10 on my pc its not detecting my device on fastboot my pc usb 2.0 no 3.0usb support

Anyone explain the process what i will do?
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] arpit_nnd:
All looks good. Just make sure you have installed the drivers and have put the device in fastboot mode.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] ashok225123:
I have installed drivers(Windows 10 driver+qfil) which is from op

I connected fastboot mode which bootlogo only stays on

Bro is it must to install windows 10 latest version mine is Windows 10 2015may be june i think

Should I try Windows 7 drivers on Windows 7 will it work with out any problem...
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] arpit_nnd:
No, there shouldn't be an issue with different Windows builds.

Check if ADB is working well.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] ashok225123:
thanks for your effort

Im finally rooted my device....
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] jatnaveenleo:
Arpit, earlier I rooted Samsung Galaxy A5. was an easy task.

I need to root Lenovo Vibe X3, model no. X3a40, build number: X3a40_S217_160623_ROW

Considering me a newbie, can you guide me to root the device. The device is stock, nothing tempered.

Please, I need to root the device so as to run rooted apps.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] asfandjan1:
[MENTION=4681604]arpit_nnd[/MENTION]

Can you help me to flash TWRP/ other Custom Recovery on my X3c50 running on stock MM 6.0.1 (VIBEUI_V3.1_1626_5.565.1_ST_X3c50)...??

Is it possible or not?

Thanks in advance
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] V_v3k:
Hi mate! Did you go through the main post?? :)
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] pabs897:
Fastboot OEM unlock not working

Whenever I write this command in command window it shows failed(remote:can not do this in user version)

Pls help
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] arpit_nnd:
You are using a wrong command/ROM version. Read the OP well.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] sanatanraj:
how to unroot

hey i have rooted my lenovo vibe x3 with your method. But now i want to Unroot this How may i do that
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] Plates:
How can I unlock s130 version using this method?

This method is not working on the stock version of Lollipop (s130). Is this exclusively for Marshmallow (s217) or did I miss something? I am using x3a40 handset.

When I run the command fastboot oem unlock-go, it gives an error which reads as: FAILED (remote: Can not use this command on user version)

Thank you.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] raj7749:
yes it is only for s217, not lollipop
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] Plates:
Does any method work for lollipop? The ones I found seemed fake and dubious.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] raj7749:
for lollipop u need to flash modded boot.img which has secure flag off. Flash through qfil

follow this link (use translator) it has complete procedure

http://lenovo-forums.ru/topic/17480-lenovo-vibe-x3-разблокировка-bootloader/
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] Plates:
I successfully unlocked the device after going through the above link. But when I tried to root using the method given in the current post it gets stuck at lenovo logo. I first flashed TWRP (after unlocking) and then installed SU without restarting the device. When I try to reboot after this, it gets stuck at the lenovo screen. What am I doing wrong?
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] raj7749:
you have flash modified boot img before flashing supersu

can you try another method - flash magisk zip instead of supersu zip.

Magisk tends to modify boot image, so it can help
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] Plates:
Sadly, Magisk method didn't work. Same problem. Stuck at lenovo logo. Thankfully it backs up original boot.img file before tempering something.

But finally, I was able to install supersu by flashing modified boot.img.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] raj7749:
good luck :good:
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] r_m_f_f:
This procedure work on Lenovo VIBE X3 K51c78 with android 5.1 ROM VIBEUI_V2.9_1616_5.1340.1_ST_K51c78?

I have several problems with this device and I try update de ROM throught recovery mode but is not allowed, when it will start install (appear 0%), appear a X symbol in red.

So I need update the ROM but the device don't allow, anyone can help me?
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] olegdn:
Dear friends, I need help. The microphone for voice calls in my Lenovo Vibe x3 d'not work - problem of the motherboard fnd it can't be repaired at all. So I want to reassign or rerote the VOIP microphone to voice calls. This changinh should be somewhere in the mixer_path.xml but where exactly I do not understand. So maybe someone knows whow I can do it?
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] Zuk z1 K2L:
I got this error in lenovo vibe x3a40_s217_160623_row

any onehelp me?

Start Download

Program Path:E:\New folder\myphone\twrp3.0.2 QPST\prog_emmc_firehose_8974.mbn

Binary build date: May 13 2015 @ 14:41:37

QSAHARASERVER CALLED LIKE THIS: 'C:\Program Files\Qualcomm\QPST\bin\QSaharaServer.exe -p \\.\COM7 -s 13:E:\New folder\myphone\twrp3.0.2 QPST\prog_emmc_firehose_8974.mbn 'Current working dir: C:\Users\Ketul\AppData\Roaming\Qualcomm\QFIL

Sahara mappings:

2: amss.mbn

6: apps.mbn

8: dsp1.mbn

10: dbl.mbn

11: osbl.mbn

12: dsp2.mbn

16: efs1.mbn

17: efs2.mbn

20: efs3.mbn

21: sbl1.mbn

22: sbl2.mbn

23: rpm.mbn

25: tz.mbn

28: dsp3.mbn

29: acdb.mbn

30: wdt.mbn

31: mba.mbn

13: E:\New

19:11:49: ERROR: function: sahara_rx_data:194 Unable to read packet header. Only read 0 bytes.

19:11:49: ERROR: function: sahara_main:854 Sahara protocol error

19:11:49: ERROR: function: main:265 Uploading Image using Sahara protocol failed

Download Fail:Sahara Fail:QSaharaServer Fail:Process fail

Finish Download
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] Kunal_G1996:
Lenovo Vibe X3a40.

This is a good phone but comes with one more flaw. The H/W navigation buttons don't lit up, thus very difficult to use in dark . The phone is running VibeUI (based on Android 6.0.1) and I have unlocked bootloader and rooted . Can any of the developers help me with the possibilities to enable on screen navigation keys please?
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] Sayakhazra:
after this process my phone not starting ...and stop on lenovo logo...how recover it..

how use twrp disk image..it shows correpted
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] costi92:
Please help me !!!!

:confused: Good evening, I also have a lenovo vibe x3 lemon, I wonder if my model number is: X3c50 this method will go to me too? If not, what else do I have to do to root it, thank you and look forward to an answer from you .... :crying:
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] Kunal_G1996:
Great work!

Thanks ;)
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] Duke0404:
"fastboot oem unlock-go" does not make the screen black and my Vibe X3 (X3a40) remains on fastboot screen even though the command line shows finished. Please help.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] t-mobile_mda:
hey..

can u pls share ur rom..? for x3c70..?
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] rockers_nda:
Got Stuck on Lenovo Logo

Hi,

I followed the below steps and tried to root my device vibe x3.

1. Connected the device after enabling the USB debugging and enabling oem option.

2. Ran the command for fastboot as "adb reboot bootloader"

3. Once in fastboot mode, ran the command "astboot flash recovery twrp.img"

4. After that, my devices booted up, but got stuck on Lenovo logo.

So, to fix it, I tried couple of things after which I ended up getting basic module having options from 0 to 13. While working on the options, I revoked the adb authorization. So, completely messed up my device!

[IMG="CurrentScreenshot"]https://drive.google.com/open?id=167FFeB0zC0lmEP-tkAHRfIHULizqLDGx[/IMG]

Sorry guys, tried to share the screenshot, but seems not getting loaded here. So, please refer the drive path for it. https://drive.google.com/open?id=167FFeB0zC0lmEP-tkAHRfIHULizqLDGx

I need to know if there is a way to restore my device or need to visit at service center? :(
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] rockers_nda:
Got a fix!

I got it fixed by doing a hard try and following this link https://xdaforums.com/android/development/rom-lenovo-vibe-x3-row-x3a40-stock-t3328461

It was very tough to jump into edl mode through device. Once got there, flashed the stock android and made the device up. Now I won't try anything more to root up my device!.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] Swapnilahire:
Volte in vibe x3

Dear Guys,

I am completely new to this forum n not aware about this jargons...can you please support by telling how to enable the Volte in lenovo vibe x3, so that I can use jio sim

swapahire007@gmail.com
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] arpit_nnd:
You cannot.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] srikarss:
Hey, do you know where I can get the stock recovery image file ?
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] Jnarab:
Vibe x3

Hi my device is not switching on after completing the fastboot. led light only blinking display is not turn on.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] fahadboss:
Successfully rooted my X3C50 on 6.0.1 by flashing TWRP in 1st post and after that SuperSU from SuperSU V2.82

Thanks buddy!
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] SenatorBlins:
Forgot to copy SuperSU to phone first

So I forgot to copy the .zip to flash in TWRP to the phone before I flashed TWRP. Now I cannot boot the phone, it gets stuck on the logo. I have tried ADB Sideload and it says 'Starting ADB sideload feature...' forever, never works. I have also tried to use adb push/pull to the phone, but when I use the 'adb shell' command on my computer to get permissions, I get '- exec '/system/bin/sh' failed: No such file or directory (2) -' . Someone please help! Phone is unusable for now :/ my stupid fault! I just need some way of copying the file to the phone.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] arpit_nnd:
So I'm guessing you used one-time TWRP instead of actually flashing it, isn't it?
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] SenatorBlins:
I properly flashed it, but realized I can easily copy any files I need to a micro SD card and put it in the phone, feeling stupid for not thinking of it :I Now got it working on a Mokee build of Android 7.1.1. Thanks for your guide anyway, was extremely helpful especially because it's not really a mainstream phone, and there isn't a whole load of info about it online.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] arpit_nnd:
Ermm, you don't need an SD card for that. :eek:

TWRP mounts your storage and comes with MTP. You can simply boot into TWRP and connect device to PC via USB to access storage.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] catas:
Can S237 be rooted?
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] jodge:
Succesfully rooted

X3-C70

Android 6.01

V3.01_1626_5.611.1_ST_X3c70

enable debugging, auth phone

adb reboot bootloader

fastboot devices

fastboot boot recovery.img

DO NOT FLASH THE TWRP only boot!!! You've been warned!

After the first reset repeat

when the twrp is booted normally the touchscreen isn't working (at least for me) use the power button switch off and on few times and the touch is working.

Follow the first post...

regards
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] thewarboys:
Yes Bro, for me its worked.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] agupta11:
Hi Arpit,

Need an urgent help! After installing one-time twrp..I booted into recovery mode..took backup of stock ROM and instead of flashing superSu.zip..I rebooted my phone. Now, I am stuck on Lenovo boot logo. Could you please suggest how can I install twrp again because when I connect my phone to PC, it says USB driver is not recognized now. Please help.

I tried downloading X3a40_S130_151122_ROW QSB Package to install stock rom from sd update but this file is downloading very slow. Do you have fast way to share this file?
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] mariajosefa:
Que fazer root ?
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] ppchina:
i can not download this fire , is anybady has backup

ADB Kit + TWRP v2.8.7.7 by SevenMaxs
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] essentialblend:
Okay, so I booted into Diagnostics Mode by Vol Down + Power button which shows a black screen with a list of options and connected it to my PC.

In Device Manager I can not see any Unknown Devices, I only have Lenovo ADB Device > Lenovo Composite ADB Interface.

Help please! :)

EDIT - So after I switched USB ports, I got this. Attaching screenshot w/ Device Manager. Am I good to go? Really making sure I get each and every step right so I don't mess anything up. When I boot into normal mode, those options go away and only the Android Composite ADB Interface stays.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] dewri21:
[MENTION=4681604]arpit_nnd[/MENTION] QFIL is stuck at "Use Verbose: False" since half an hour. I don't think I am ever gonna see "Download Succeeded" in QFIL. Help me out here.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] SevenMaxs:
Hello everyone!

In the near future, I will finish work on a custom kernel for X3a40.

Unfortunately, I do not know much English, so all of my work will be placed here.

Thank you.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] prathmesh01:
I just moved all the files in the root of D drive an it worked.. I dont know how but it worked.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] broto1988:
Qualcom Usb Driver install in exe format

Qualcomm USB driver installation link (in .exe format)

h t t p: // w w w.mediafire.com/download/xnjxkd49dn9d75j/QualcommDrv.zip

i used this successfully . same is available within my Root Tool post

P.S. SevenMaxs provided the driver in .inf format originally , hence..... ;)

---------- Post added at 02:23 AM ---------- Previous post was at 02:10 AM ----------

Yea , Thats how to do it

---------- Post added at 02:30 AM ---------- Previous post was at 02:23 AM ----------

You could try to install the qualcomm usb driver (.exe format) from the link given in the post above (Mediafire) OR

While in that window (screenshot shared by you) Right click on the Lenovo... under the COM ports in device manager , select update driver and locate the Qualcomm driver containing folder (.inf format) to install it
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] arpit_nnd:
You are good to go..
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] arpit_nnd:
What exactly do you mean by that PS part?

Whatever it was supposed to mean, just remember this is XDA :).

And before writing such comments, please make sure you got the right facts bro :)

The driver is not from SevenMaxs' posts. They are exact same ones from my stock firmware thread which, at that time, were taken from the device itself(the drive which mounts on connecting to PC with PC suite and such stuff) and were in ".exe" format. Please go and check it mate.

Rest of your post is just repeating already posted stuff. Please read the thread before posting. Just trying to keep the thread clean :)
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] arpit_nnd:
Looking forward to it ! :good:

And thanks again for the bootloader mod ! :)
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] arpit_nnd:
Please post QFIL/driver related issues in the Stock Firmware Flashing thread mate.

Make a post with more details about what you did (OS version, installation directories, driver status, etc.) over there and I will try to get it sorted.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] dewri21:
Tried [MENTION=5680718]SevenMaxs[/MENTION] steps. Worked successfully. Your files, somehow, don't seem to work on my device.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] arpit_nnd:
It's just a matter of driver setup and doing it right. I tested it with 2-3 people before posting, so it's not an issue with the files mate. Anyways, you got it working, that's good. Still, please mention the details of your setup and issues on flashing thread so that I may check if it needs any fix.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] dewri21:
Yeah, drivers and stuff, I guess. Btw, any luck with xposed?
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] arpit_nnd:
Xposed has no issues.

There won't be any root related issues anywhere.

Just remember that the system partition size is 2.5 GB and the stock ROM leaves only few KBs free. So, you need to clear out some space by removing unused system apps. Be careful not to remove OS related apps !

Remove apps like SYNCit, SHAREit and some Google apps like GDrive, Maps, etc. (they are not even used from system partition as they are updated too frequently and thus be installed in data partition).
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] dewri21:
Yes, already uninstalled those. Trying to free up more space. I only have around 3gb free.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] arpit_nnd:
3GB???

The partition is 2.5 GB. You probably meant 3MB or else you didn't read that I talked about 'system' partition, not the 'userdata'.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] abhklk4:
Thanks & appreciate your hard work
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] essentialblend:
Thanks a lot Arpit and Broto! :)

I finally got everything ready to go and prepped.

Since I don't know how to take advantage of root access except for some root apps/ Xposed / Custom Roms , I'm waiting for a little more time (I would suggest new android users on this post to do the same) . I'll give this a go when people are good to go with custom roms on vibe x3.

BTW another small question pertaining to warranty, I went to the Lenovo Companion App to check the 'Warranty status' using my IMEI number , it says no record found. Is this normal? Do I have to register somewhere to activate my warranty ?

Again, thanks everyone for all the help and support. A super new android user like me might just get lost in all these processes otherwise! keep it up! :)

EDIT - I did what Broto mentioned too, after booting to Diagnostics Mode, I went to the new-found devices and manually updated it via the LenovoUSBDrivers folder, and it said 'The Drivers are up to date'. :) So I'm good to go I guess.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] dewri21:
Sorry, read that wrong. Got 98.4mb free.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] stealth92:
Unlock Bootloader Issue

I was stuck while attempting to unlock bootloader where QFIL couldn't detect my device as shown in attachment below. Another thing is when I was installing those .inf files, I failed to get "The operation completed successfully" popup for "Lenovo_ser" file which probably could indicate for incomplete driver installtion? Please help because I couldn't proceed even after following exactly whatever instructions that were provided. :(
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] broto1988:
Neway did ya successfully solve the secure boot disabling problem (resulting boot.img not working !!) ..........i guess...

Courtesy :russian forum post ..
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] arpit_nnd:
Yes you are good to go bro. If you read carefully I have mentioned the same to some other user before before Broto rewrote it...
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] arpit_nnd:
Are you referring to my post on the Russian forum?

If yes, then my boot.img was fine, it was just that I had not used the updated modified bootloader which SevenMaxs added later.

In fact, the boot.img in this thread are my own.
[Lenovo Vibe X3 ROMs, Kernels, Recoveries, & Other ] arpit_nnd:
In case your device isn't detected by QFIL it is a driver issue.

It will be great if you discuss this on the PC Flashing thread.

Anyways, have you plugged your device to a USB 2.0 port on PC?