yashsingh1/xdaforums huggingface dataset:
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] AyieStyx:
Just in case some of you doesn't know how to load fast boot through adb:

1. Plug in USB.

2. Open Minimal ADB.

3. Input " adb reboot-bootloader " then wait few sec.

4. Input " fastboot boot recovery.img "

This method is easier and no need to turn off and hold the Vol + and Vol - .
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
can you please put links to download all the necessary files ?
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] zbisz41:
Links from the Russians and the Chinese ;) thank

recovery910en.​img CWM:

https://disk.yandex.com/public/?hash=wp3nOYLCs+wjkTBUR+YLL+3w3ZWnikPdgk2mP/1FlOA=

UPDATE-SuperSU​-v1.93.zip

https://disk.yandex.com/public/?hash=mX9YvXWf8n3ZPVDgwIsmdzz5cFnSx8jY5GRCfzWeICM=

usb_driver.rar

https://disk.yandex.com/public/?hash=EGuYrsQC+3PVNSVp1lD+H0dJu3DrN59NhF1+XiIkDog=

VIBEUI_V1.5_1416_3_DEV_K910

https://disk.yandex.com/public/?hash=EGuYrsQC+3PVNSVp1lD+H0dJu3DrN59NhF1+XiIkDog=
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] Saiyajin:
Guys - isn't the K910 supposed to have WLAN ac? I just noticed, that mine doesn't show any 5 GHz WiFi´s? :eek:
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
It has 5 Ghz, maybe yours is set to 2.4 from wlan settings
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] Saiyajin:
Yeah you're right, i just found the setting for selecting the band. but even when i set it to 5 GHz (not auto) i won't find my 5 GHz AP. :eek:
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] nayton sanches:
Help

I need the ROM multi language for lenovo k910
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] freejess:
Look my thread above...

Send by Vibe Z with Tapatalk
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] talich:
Hey bro, you copied my post from 4pda.ru, copied all the links, and posted here. But you never gave ANY thanx to me there, did ya?

Guys, you need to download only cwm and chainfire's update, if you haven't them. You need not usb driver, if sideload is working perfectly. I had to edit the driver from the link above cause sideload were not working in my win7 at all.
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] blackpac:
I think I have BRICKED MY DEVICE :(

I'm on VIBEUI_V1.5_1416_3_DEV_K910_NK

I have deleted an "unnecessary" APK and now the phone will not boot....

Cannot go to recovery as its a locked bootloader...

I cannot create an SDFUSE folder as the phone will not recognize the internal SD

Any advice will be very appreciated...

---------- Post added at 01:13 AM ---------- Previous post was at 12:37 AM ----------

Success!!! the guy in 4pda forum is a genius!

I have used a FAT32 formatted flash drive in OTG

Made an SDFUSE folder on it and moved K910_SS_S_2_040_0109_131226.qsb inside

Powered on the phone with VOL- pressed and applied SD Card Update... Viola :)
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] talich:
I have warned ppl in 4pda.ru bout that, but you couldn't read russian). Could you reboot it to factory mode now? You can use factory mode SD update from OTG, but there are some issues. You may need more than one usb flash and OTG cable. When I tried to update .qsb firmware from OTG, only one usb device were recognized. I've got 3 in a time.

---------- Post added at 12:25 AM ---------- Previous post was at 12:15 AM ----------

http://lenovo-forums.ru/topic/5668-рассуждения-о-кастомах/page-2#entry157163

In the posts below you can see the screens with vietnamese I made. How to prevent 406 error in market you can read there too.
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] zbisz41:
Is there a ROM multi language?

What version and the extent to which translated?

You can ask for more information?

I have ROM K910_SS_S_2_040_0039_131101 .Unfortunately, only has about 30% of the translation on my tongue.
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
Do u guys use a special otg cable ? Mine works with my s3 and s4 but norhing happens when inserted in k910
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] freejess:
For errors 406, you have to install the rom and the patch, I shared it above... I installed it my phone works very good... Look the screen :

Send by Vibe Z with Tapatalk
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] zbisz41:
Also have the choice of language, but not everything is in my language.

Most of the settings and functions are in English.
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] freejess:
Yes I know the translation is not complete ...

Send by Vibe Z with Tapatalk
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] Ugglaimossen:
I have tried two standard otg cables and they work fine on my unit
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
with this ethod i just gain root ? or do e have a unlocked bootloader and cwm ?
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] blackpac:
I have used a FAT32 formatted flash drive in OTG

Made an SDFUSE folder on it and moved K910_SS_S_2_040_0109_131226.qsb inside

Powered on the phone with VOL- pressed and applied SD Card Update...

I used 8GB Lexmar JumpDrive S70 and a standard OTG cable, worked like a charm :)
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] zbisz41:
There is a small error.

Folder name SDFUSE !
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] imedtoon:
Hello all,

Since I made the last official update I can not send MMS. I can receive them but the sending is not working.

Can anyone help me what is wrong ?
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
Did u checked the mms settings ?
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] imedtoon:
Yes It is correct otherwise i would not receive the mms
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] Saiyajin:
Bad Bluetooth-Performance

Have you guys noticed any poor bluetooth performance or behavior?

I'm on VIBERROM_V1.0_1403_6_ST_K910 and bluetooth is behaving strange when using it for sound transmission (different car radios and headsets). No track information at all, strange sound distortion every now and then, connection issues and not working microphone when using a headset.

What the heck is going on? Since some functions are working from time to time I assume it's an software issue.
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] ghe_rares:
Microphone not working happened to me also, but in Vibe1.0 DEV . On bluetooth, obviously
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
anybody found a fix for the contacts that dont show up even if the name is saved ? for example if i receive a call i receive it like 072........ and an sms +4072....... if i save the number with international calling code (+4 or 004) when it rings the phone does not show who is calling but will show the name when i receive a text and viceversa
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] freejess:
Where do you live?

Send by Vibe Z with Tapatalk
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
romania
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] freejess:
I had the same problem in France, I changed operator, for work...

Send by Vibe Z with Tapatalk
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] Saiyajin:
I have exactly the same problem - someone suggested to update the Contact-App, so I did and it worked for a few days. But now I have the problem again - no clue what' causing it
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
I have updated it but its the same...no change,
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] _mfm_:
Updating the contacts app fixes phonecalls, SMS function is still broken.
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
How it fixes phone calls ?
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] ghe_rares:
Same here.

By "fixing" he means that all the calls have caller name. Not working for SMS, though. But if you use Hangouts for SMS , the names are shown correctly
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] mustatir:
You can try to install xposed installer with vibe expert modules ( can be download in xposed installer download tab )

I don't have problem with contact don't show anymore :)
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] newbie_vlc:
Can you explain how do you did that?

It's possible modify to improve the feature and after that unroot? I need to be unrooted

Thank you for all

Enviado desde mi Lenovo K910 mediante Tapatalk
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] mr.mgmg:
help

Hello

You have upgraded to 4.4 and now can not entry to recovery to install Google app and Root

Is there a way to return to 4.2?

locked bootloader:(
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
Yes, read the posts above
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] mr.mgmg:
I did not understand what you mean
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] magomer:
You need to download the Android 4.2 ROM format qsb sdfuse folder and copy it into the main memory of the phone, if there is no need to create it yourself. then turn off your phone and press volume down and less power button and then it should start the recovery of lenovo. from there you can install the old rom.
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] mr.mgmg:
Are you sure of this method?

I read that a newer version of Back to the old version will cause a problem

And what version number?
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] magomer:
no I'm not sure it works but I think there are no problems to turn back.

test with a rom I do not remember the old version. but after you install the rom from recovery
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] MFD-2H:
My K910 phone has problem with microphone too.

When I use it for phone call It cut off my voice and my friend cannot hear me.

but when do not choose " Smart Sound Settings" option they can hear me.

It happens with all versions of firmware that I tried.

Is it a defect of hardware or software ?
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
I did not encounter this problem, nether on 4.2 nor 4.4
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] zbisz41:
There is one problem with notification sounds.

Android 4.2.2

one sound informs ;sms and phone charging.

There are no separate settings.

Is there any application to add options ?
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
new rom based on the official V1.5 1419, the author says that is a lite rom, already rooted and cwm :

VIBE_ROM_1.5_1419_2_ST_k910_ROOT

http://bbs.lenovo.com/vibez/t372753/
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] mazam:
How to root k910L with K910L_S129_140402 firmware.?
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] ghe_rares:
Tried it ?
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] zbisz41:
I not tested.

Version Beta. lite only 368 mb, Basic functions has supposedly.

Maybe it is worth to wait for the final version.
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
I did not managed to download it
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] extrem23:
Confirmed Framaroot not working as today.
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] Rigardi:
anyone got a download link? this link only leads to a chinese Lenovo forum, and I dont really want to create yet another account solely for downloading a single file...
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] extrem23:
I've upgraded to 4.4 and able to install Google related service and apps with Gms Tool.
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
i have problems with location on my phone, none of the installed apps wants to find my location from network or wifi beside maps, anybody hs this problem ?
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] zbisz41:
Try to install the Store FasterGPS .Set your data.

Edit and change the file Build Prop:

ro.lenowo.region=prc change to ro.lenovo.region=row

Apparently helps, especially for the location weather app.
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] mr.mgmg:
Problem

Hello

update to 4.4, and now Stopped on lenovo

Can entry to recovery but There is no rom in the memory

When instal by install zip from sideload Show me this problem

Please help me
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] bobo180590:
help. cant flash cwm

Hi greetings. I have problem regarding CWM recovery. I try to install Gapps and SU into my K910 but failed. It said that (remote:Locked). What does it mean? I try to unlock it with fastboot oem unlock but didnt manage to unlock the bootloader if thats the problem regarding this matter. Is there any solution so i can boot into cwm recovery to install gapps.

Currently running on 4.4.2. Or any other alternative solution?
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
Read the above posts, u will have to downgrade to 4.2.2 and then boot into cwm, flash rom, flash gapps, flash supersu....
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
Finally :)

http://pan.baidu.com/s/1jGmMZMu

Password: py3r
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] mr.mgmg:
Please help me:crying:
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
where did u downloaded the rom ? vibeui.com ?

download the latest dev rom from vibeui.com or try with an otg cable not by sideload
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] mr.mgmg:
this rom

http://bbs.lenovo.com/vibez/t372680/

im try to instal by otg when inter recovary but Does not read or recognize the memory
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
download the latest official rom from vibeui.com and try to flash via cwm or use other memory stick
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] PanNet:
You need to change name to update.zip. It does not accept other names.

Regards
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] mr.mgmg:
I can not access to the phone's memory to copy rom

---------- Post added at 09:57 AM ---------- Previous post was at 09:55 AM ----------

im change but no Happen Anything
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] Rigardi:
thanks!

just for precaution: will this work if I flash it with CWM on my phone, which currently runs with a modified 4.2 vibeui?
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] mr.mgmg:
cannot read sidelod is problem, whay cannot to read?
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
It should work
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
did u tryed with the official rom downloaded from vibeui.com ( http://www.vibeui.com/xiazai_k910_nk.html ) ? try to put the zip file in the adb folder so the command should look like "adb sideload rom.zip"

u can boot in cwm ? if so then u can put the zip downloaded from vibeui.com to a memory stick with an otg cable and chose from cwm "install zip from sdcard"
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] mazam:
Somebody please root k910l lte vesion. With 4.3 stock jb rom. I need to install viper4android. Pleaseeee
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] mr.mgmg:
im downloaded VIBEUI_V1.5_1416_3_DEV_K910

same problem
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] _mfm_:
Sideload didn't work for me with K910 either, but you can copy the file to the internal storage and flash it from there. You can use adb push if you can't access it the usual way.
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] mr.mgmg:
I can not access to the internal memory to copy the ROM

I lost hope in the restoration of Mobile: (
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
ok, so using a otg cable and a memory stick ?
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] mr.mgmg:
by otg cable

:crying:
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
what rom did u had before ?
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] mr.mgmg:
Thanks to everyone who Helped me

Has been Re-installed ROM

I am very happy

it is resolved by

http://bbs.lenovo.com/vibez/t372914/

this recovery Supports otg cable
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] alain57:
Hi all,

i'll receive this phone next week.

I didn't read all the pages (sorry :/ )

but i understood that they are

4.2 rom with root, multilangue, unlocked bootloader

and since a few days a KITKAT rom, only in chinese and bad english who can be rooted but has blocked bootloader and that nobody succeded unblocking it ? Is this right or did I missed something ?

Is there a way to go back to 4.2 once I installed kitkat ? (I need kitkat for my smartband)

Not that I upgrade to kitkat and be blocked for ever with this rom...

Thanks in advance for the people who will reply ;)
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
Yes you can downgrade to 4.2 you need to download 4.2 ROM in qsb format copy the downloaded file in sdfuse folder, if there is none then you need to create it yourself. then turn off your phone and press volume down and power button to start lenovo recovery and choose update
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] Rigardi:
did you already try this ROM? Any serious bugs? Does Google Play work without problems after flashing the Google Apps (no 406 error?)?

Need to know that, because I use the VibeZ as my main phone, so having a broken ROM would really be a problem.
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
I don't realy know , i did not had enaugh time to test it. But if you find bugs you can flash imediatly other rom because it has root and cwm
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] viper001:
My Impression of K910 VIBEUI 1.5 1416_3 ROM UPDATE

Pro:

Nice and smooth.

Nice icons

Better English Support.

Able to root easily (load 226.QSB, adb bootloader, fastboot 109 CWM, load 1416_3, sideload GAPPS 4.4 mini-module :good:, sideload SU1.94, reboot :victory: )

Load Exposed and VibeXpert for fix on the stock weather locations and Contacts :good:

Cons:

Lots of Apps (that i use) do not work properly (probly need kitkat compatibility update)

NO VPN!! (Kitkat problem, hopefully solved in 4.4.3)

Lower Benchmark Scores (around 2000 lower in Antutu, for those interested anyway)

Drains Battery Faster :eek:

As it is, i went back to 1415 Dev edition. tweak this ROM and it really is better than the current KitKat for the K910.

Post my tweaks later.
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
What r u talking about?
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] viper001:
Title didn't show. Its my impression of the 1416_3 dev update.
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] mustatir:
Feel so wrong. I have no problem with battery n performance or else. Great vibeui on my phone :)
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] viper001:
Normally you won't feel the drop in performance. The snapdragon 800 is already a monster of a chip. You'll only see it in synthetic benchmarks. Anyway, after using it 1416_3 for two weeks, I've noticed that the battery last only around 8 hours, compared to 10-11 with 1415. This is of course according to how I normally use the phone.

The biggest downer is the faulty VPN. Almost all open VPN apps don't work with kitkat.
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] viper001:
Here's what I normally get on 1415. 32-33K on kikat. Notice that I've got a lot of apps running in the background also.

Basically, 1416_3 is far from being polished. Notice that there is still no stable version for K910 Vibeui 1.5?
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] DonToro:
Same experience here. Battery drain is heavy now. Furthermore permanent errors like unfortunately, your email stopped... Back to 1415 :(

TAPA BY Z ULTRA
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] viper001:
Yeah got that too. Seem to me that 1416_3 dev has memory hole problems.

All other lenovo models have been updated to 1417. Its a tell that they've still got some problems with the K910 rom.

1415 dev version is the best for me so far.
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] alain57:
just a stupid question (sorry for it i will get my K910 in a few hours I hope)

1415 dev is still jb right ?

kitkat started from 1416 ?

or did I misunderstood something
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] mazam:
Is The dual sim k910, and single sim k910l rom different? Many people here talked abaout 2 sim k910.
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
Yes the roms are different because the devices are difderent, here we talk about the dual sim K910 not K910L
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] mazam:
Tq for the clearing that one. My i know where people talked about k910lL.
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] viper001:
Yes 1415 is JB with Vibeui 1.0

---------- Post added at 06:32 PM ---------- Previous post was at 06:30 PM ----------

Best bet for you would be the official US lenovo forum. They even posted the source of the JB 4.3 ROM in the K910L.
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
As stated on vibeui.com K910 with nonVibeUI rom will be updated to KitKat 4.4, anybody knows to explain what ia thw difference between VibeUI and nonVibeUI devices ?
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] alain57:
i finally received my device had an issue after upgrading with kitkat but i'm working on it now ;)
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] alain57:
the touchscreen on the device had strange way to react so I tried OTA and kitkat update.

I needed a QSB file to have root and gapps but installed by mistake the ****ty file located on needrom ( this one : http://www.needrom.com/wp-content/up...0081_131202.7z )

after that the device booted but no more lenovo logo but a chinese logo....

I managed to boot CWM recovery, and did a wipe system/data and tried to install a stock firmware....

but my device is now recognized as a kitonw and therefore refuse to install any firmware

and because i wiped all data, of course I have nothing at boot

No more vol - menu :/

I still have the e3 recovery (pressing vol + and - with power then plugin the usb cable)

but I did not find any K910w rom in a recovery zipped format

does anyone know where to find one ?
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
if u managed to boot into cwm why don't u flash the offcial rom from vibeui.com from a memory stick and a otg cable ? or adb sideload ?
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] viper001:
[MENTION=227451]Alain[/MENTION]. Its very unlikely that you lost the factory loader. It happened to me before. You loaded the 202 firmware right? Thats the China mobile customized version.

1. Boot completely and let it stabilize.

2. Find and download the 226 firmware.

3. Make an SDFUSE folder in your internal SD.

4. Unrar/unzip the downloaded 226 firmware and it should look like "xxxxxxx226.qsb". Copy the Qsb into the sdfuse folder.

5. Shutdown completely.

6. Press volume down while pressing power. At vibrate let go of power and you should get into the factory loader.

6. Choose the update from sdcard. 4th option. Start.

It will take a while to load and after you reboot it will also be a few minutes before it completes boot.

Good luck.
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] alain57:
it was not cwm but the default e3 recovery, as the device was recognised as another K910 the official update where not working.

Nevertheless i managed to boot into real cwm (pressed vol - and power, nothing happens but at least i had adb working so i reboot into fastboot (still nothing showing, and say fastboot boot recovery.img )

after that I could flash a zip

yeah i did that and it fixed the problem ;) but still thanks for the tip ;)

but the screen is still like uncalibrated : it is reacting strange, and multitouch test tells me that i click with 5 fingers on 5 differents position when i click with ONE finger ... I guess there is a defect :(
[Lenovo Vibe Z ROMs, Kernels, Recoveries, & Other D] tedulus:
new contact manager upgrade received today, but i don't notice any changes, if anybody notieces something changed please write here