yashsingh1/xdaforums huggingface dataset:
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] :
guys i really appreciate what you're doing here and i really like this phone so i'd buy it if you donate but the one i have is really dead. it''s stuck in 9008 mode and i'm unable to flash bootloader. all i got is black screen, no led flashing, no reaction to button combinations. i can unplug battery, plug usb cable in and it's detected in 9008 mode but it won't flash no matter what app i use, what windows version i'll use or computer. i have all windows from xp through 7, 8.1, 10 and even one solution for linux. right now i dusted off my crappy nokia 1250 :) waiting for my friend to return galaxy s5 to me which i really hate so again, if there will be enough donations i'll buy k920 again and continue development for it without risking as i did now but i thing it's in a state you don't really need me anymore :) it's up to you
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] thanhchaua6:
Hi frantisheq, your K920 only hard brick, it not dead brick.

Before my K920 dead brick is: PC not regconize 9008, No led when charging, No vibrate, No reponse anything.. I used test point mothod to unbrick it and successful.

You can unbrick your K920 by Miflash after use qpst fail with error, I dont know how but combination 2 tools (qpst and Miflash) is get success.

Remember is download mod k920 only into 3s, you have to quick press enter after setting qpst or miflash correctly.

Attached 2 pics test point below.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] dibon321:
Hi frantiseq, I would try the last time what thanhchaua6 advised you. If not successfully done, you can check bazos.sk, I've checked bazos last week and there're few nice pieces from 50eu (broken display, this one is worth of money I think) through 120eu (spill water o phone) up to 200eu for used working phone. :) I personally tough about one as second phone in case of need and for flashing.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] :
i have already tried the test point :) it helped me few months ago but not now
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] thanhchaua6:
Frantisheq, Have you try Miflash tool after flash via qpst fail error?

You should flash clean wndows 7 full driver for K920, driver Qualcomm 9008, download qpst new version in xda forum, good cable. You dont remove battery when flash by qpst. Get into Download mod right way.

Miflash here http://xdaforums.com/android/general/tutorial-how-to-unbrick-tou-lenovo-k910-t2893932/page15
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] :
i did, even some newer version. this thing will kill my keyboard too :D pressing enter too much like mad
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] thanhchaua6:
I think that you flash cm13 and go back Bootloader and modem china version. You should try flash again with qpst china rom. Good luck
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] :
guys it's cheaper where i live http://www.nay.sk/lenovo-k920-vibe-z-dual-sim-cierny

finally some new idea, i'll try to flash something chinese. thanks
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] Electry:
Get the one with broken screen for 50€ (bazos.sk) and just replace your mainboard.

I think its the cheapest solution, if you dare to try it :D
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] n1tro:
[MENTION=6764020]ThanhChau[/MENTION]6 or everyone else,

Do you know where on the motherboard I can check to see why my cell signal is so weak? I've read a few others having a similar issue with the only fix being taking it to a Lenovo service center which unfortunately I am no where near. Thanks in advance!
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] codymamak:
I bet you already check XDA for snapdragon 801 brick & recover...but anyway...did you see LG G3 unbrick? The device seems very similar to our K920 (5,5" instead of 6"...but...)

http://xdaforums.com/lg-g2/developm...-root-twrp-t3079076/post61486983#post61486983

http://xdaforums.com/lg-g3/general/fix-unbrick-lg-g3-stuck-qualcomm-hs-usb-t2933853

http://xdaforums.com/lg-g2/general/fix-unbrick-lg-g2-stuck-qualcomm-hs-usb-t2933830

Maybe not good tools, but can be source of ispiration to test more??

BTW, for sure it's cheap in SK the K920! I paid (imported,but anyway EU version from other EU country..) a lot more!! And you all are right, seems that hardware wise, we cannot get better, at least in near future considering dimension&screen size&CPU&RAM&storage... K920 was really one-of-a-kind-device, and still stands-up!!
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] :
new build with off mode charging thanks to Electry https://www.androidfilehost.com/?fid=24352994023705488

EDIT: guys i'm sorry but this could be the last build from me, i simply have no motivation to continue development for device which i can't use and i can't test new builds to see if they work
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] Pino13:
frantisheq, can you please check if the option proposed to buy a damaged phone and replace just the motherboard is viable?

I see a lot of people willing to help (me included) just let us know the best option.

Thanks for your work and don't give up on our phone.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] vince_junior:
Hi all.

Is it just my phone, but i noticed two bugs:

1. Upon placing a call, the other party cant hear me. I need to end the call and redial.

2. After a call, my phone freezes. Need to rstart.

Im on 12/29 build.

Thanks.

P.S. Willing to help frantisheq too.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] Electry:
[MENTION=5253775]ganapathyraman_s[/MENTION]
[MENTION=3370172]vince_junior[/MENTION]

Sorry guys, I havent experienced any issues you mentioned, and Im using CM as my daily rom for about two weeks now.

Everything works as it should, except for the HDR. I havent tried to connect it to the bluetooth handsfree/car stereo though.

You may want to flash the latest build (20160104) from frantisheq and see if the problems persists.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] velepost:
I can confirm that Bluetooth working fine in the car hands free, and also with BT headphones. Using cm 12.1 as daily rom, since first frantisheq build. Sometime device blocking on the lockscreen, but now very rarely... Working stable. HDR is working with lenovo snapit camera
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] vince_junior:
Hi velepost.

Can you give a link where to download the lenovo snapit camera?

Thanks.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] velepost:
Try here

https://www.dropbox.com/s/oneioj4yhjt7qo2/Lenovo SNAPit& SEEit.apk?dl=0
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] JohnSparrow:
It seems, our little "kickstarter" for frantisheq's new K920 failed: only 4 men except me wrote about their readiness to take part in.

This is my own donation:

I placed this receipt not for vainglory or boast, but only for others people who can do the same to continue the developing of the CM for K920.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] velepost:
Done by me
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] velepost:
Come on people, let's do it!
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] JohnSparrow:
felipines & dudan166 took part in our little business, :)

They are new xda users & couldn't post to development forums yet, so they sent their receipts to me.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] :
guys, stop donating! :D i have more money than i need! it's really hard to not buy some better phone :D but it's also hard to find some better one ;) right now i have added bank account to paypal to withdraw money, it's still checking.

thanks to everybody who donated, i love you people! special thanks goes to many anonymous fans in china, they collected more than 340$ in one day :D

i expect to get new phone by wednesday if everything goes well with money withdrawal
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] velepost:
Be careful with new one :)
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] moneytoo:
There seems to be an issue with the mic when calling in Hangouts - the other party hears nothing at all. It works with external microphone or just switching to loudspeaker but not when holding the phone next to my head. (Skype works fine.)
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] velepost:
Confirmed! Call from asus to k920, only hear sound from asus.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] geantsverts:
Nice news !

Good luck for devs and I hope that we will have cm13.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] moneytoo:
Well, at least as temporary workaround, flashing this makes mic working in Hangouts.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] mescalyto:
the touch screen become unresponsive, randomly. the only solution is to hold the power button about 15 seconds to restart
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] dudan166:
I confirm this problem, but only if I enable "tap to wake" function. If you use it, try to disable.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] bravonova:
you guys are freaking amazing

---------- Post added at 06:55 PM ---------- Previous post was at 06:54 PM ----------

I felt proud....users are helping developer

---------- Post added at 06:56 PM ---------- Previous post was at 06:55 PM ----------

I just can't express my feelings in words..... hats off to u
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] :
ordered but i'm still waiting for money to get withdrawn from paypal

EDIT: Cedric Iardeux thanks for donation
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] geantsverts:
Hi, for nothing it's important that your work and your time are recognize because even if you don't ask for that it's important to help the dev like in open source model.

Best
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] :
this money transfer is killing me. still waiting for it to appear on bank account but it's already processed on paypal. never did this before, how long you people wait for money withdrawal from paypal to complete?
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] codymamak:
Frantisheq, I waited up to 15 days sometimes (expecially if amount is high...also, it's slow when done the first times...

BTW, about this ROM...I downloaded and will try soon (on s277 ROW phone became very unstable...), but I must ask, any of you having problems with Inbox? I use it a lot and do not want to change my email app. Thanks in advance for reply.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] velepost:
I'm using inbox with 2 accounts and it work ok
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] :
i just had a phone call from the store if i want the phone :) i sure do, just waiting for the money
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] codymamak:
I think my phone is going bad...

Experiencing blue screen and sudden reboot randomly, mainly when there is a notification of any event, but can happen during web surfing by Chrome as well..or even trying to make a call.

I was hoping for something wrong on stock rom, as it was rock solid and no issue until S277 update...with s271 it was OK (did all the updates from 4.4 stock rom..only wipe was going to 5.0 obviously, but besides this, always no issue at all, EVER). I already tried to flash back s271 with locked bootloader but it gives anyway errors and blue screens now..

Then I tried to flash CM12.1 after unlocking, but problem stays same, and even worse now, when it starts to reboot, I see only "android" bootlogo, then reboot. I am forced to keep power button pressed and wait for phone to kill itself...and then try again boot...

With stock rom, it rebooted and most of times managed to get back to system...

I will try to check if recovery is stable (already flash TWRP) just staying in there, but if the phone keeps doing random blue screen..I really do not know how to fix.

The only "weird" think is that this seems to be worse when the wifi is connected. If I stay on 3G data, it's better (not 100% stable, but better).

Is amy way to test different modems besides going back to stock rom?

Also, is there any dev option I should try to activate/disactivate to get more stable situation?

I feel I will be forced to change device if I fail to find a stable solution...and I really don't want to, for me this was perfect for everything...

Feeling very bad atm...

EDIT:

Someone can tell me how to COMPLETELY WIPE trace of old phone stock rom? I mean which partitions to wipe or format from TWRP?

I want to be sure that phone runs "clean" before declaring it's dying up...

BTW, seems staying in TWRP it's having NO issues...so indeed seems a software issue...if this was a PC, my expertise would call for a memory module going bad...but I don't understand how this is possible, device NEVER falled to ground, and NEVER hit something hard...
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] clone.x:
Hello, if you perform this WIPES then your mobile will be like new one without any DATA and OS. Please as soon as possible Back up all data that you need before you continue!!!

TWRP - Clear and Clean All:

"WIPE>ADVANCED WIPE>"DALVIK CACHE, PRELOAD, FIRMWARE-UPDATE, SYSTEM, CACHE, DATA"

After these steps you need to Install CM12.1 and GAPPS again.

c.x
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] codymamak:
Actually, just checked in TWRP...I'm missing "firmware-update" partition...I tried wiping dalvik,preload,cache...and to my very bad feeling, while wiping the blue screen came back...it did not reboot (for some reason if I push power and turn off/lock screen sometimes this will prevent reboot...), but I am scared to make it non-working condition at all keeping up this...

and still no change, phone rebooted even while rebooting and having onscreen "optimizing app xx of yy" it reboot several times..

I know, I need to clean all partitions you mention (missing system and userdata to be wiped), but I think I will wait weekend, since I can't stay without phone...and reinstalling all apps I use, takes too long to try tonight..
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] clone.x:
Sorry, but this seems like you have something wrong with your motherboard and you should go to the repair service center...

c.x
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] codymamak:
Eh, I figured this out...I feel bad as here device not official= no service...so...I think nothing can be done, need to purchase another unit :( Anyone can help with low cost of online purchase? (need to ship to Italy) I think still the k920 is my solution for my needs...cannot find a more updated one with better anything...so I might end up buying a new one...

I'll try to do a few more tests...but I really don't think will solve anything...actually I am quite upset, as this was quite "new" phone, purchased in february 2015...less than one year lifespan is not a nice ad for Lenovo...
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] clone.x:
Here you can find my guide for the return to the original Lenovo ROM and than you can try some test for stability, only if you want...

BootLoop/Error > QFIL Flash > Lenovo Stock 5.0.2 K920_S246_150520_ROW

I wish you more luck than before!

c.x

PS: BTW in the Czech republic is price about 360 €
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] bnsuki:
I am still waiting for my K920 in the mail..

While I am waiting for it I am doing all the prep work to work out the instructions on flashing this sweet rom. Frantisheq and everyone supporting this project. You guys rock.

I noticed the download link on the main page is showing: 20160104 but in the forums, there was little mention of updates after the end of December.

What's new in the 20160104 build? Is it a new experimental build, or is it the most refined build so far? Sorry for my ignorance if I missed it.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] abakash9:
That's the latest build almost bug free or should I say no bug at all on my device
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] codymamak:
Hi guys, update: I am struggling with the phone, but at least I found evidence that most issues come from modem of s277...or so it seems, I found other user forum (in spanish) claiming s277 make phone reboot prone...expecially with wifi activated...and seems to be the same situation, without wifi it's more stable...with wifi, it reboots even

Now...big question..can I flash s247 ROW MODEM only in CM12.1? Or any other modem for what is worth (I thought to pull the .bin file from the S246 QFIL rom that I was pointed to...but any other than s277 would be OK I guess)

As for now I tried to go back to original firmware but I receive always issue in download from QFIL...so for now I'm struck with CM12.1...but I would try to flash S246 modem to check if it helps...anyone knows if this will break phone working??

Can I flash and then if phone do not work, get back to flash CM12.1 and set the CM12 modems?

Also, final question...I have TWRP installed and I were coming from Lollipop s277, and I forgot to remove the "recovery-from-boot.p" file while having still stock LP rom...but now I format system and have CM12.1...does this step still need to be done? I guess not, but...at this point I feel I am messing up...
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] clone.x:
1 - Yes, you can flash only MODEM from TWRP under CM12.1 (BTW I did flash MODEM ROW 277 and no problem yet...)

2 - I believe that if you flash wrong MODEM than you will not have working SIM, but everything can be change by flash right MODEM (any from Lenovo Android Lollipop)

3 - CyanogenMod does not include any MODEM

4 - "I forgot to remove the "recovery-from-boot.p" - does not matter now

c.x

EDIT: Oops, today morning I had first restart with WIFI on.

If anything can go wrong - it will.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] Pino13:
Here you can find some flashable ROW modems:

http://lenovo-forums.ru/topic/10223...-патчи-модемов-от-row-и-cn-прошивок-под-twrp/

Unfortunately they just have some very old Modems and the S277 one.

I would just flash S277 again and see if it correct the bugs, if don´t you can try one of this old ones.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] :
time to update and unlock some bootloader ;) thanks again to everyone who made this possible
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] Pino13:
That´s a fast delivery! wow.

Wish we could have this in my country.

When can we expect a new build? :)
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] codymamak:
Actually I found here on XDA a QSB file splitter written in Perl that was reported working with K910... I looked in the script and disable the rebuild process (was guessing the partitions...and I don't think K910 partitions size are equal to k920...)...

(It's here: http://xdaforums.com/showthread.php?t=2595269 )

As a result, I can recover NON-HLOS.bin images from the QSB files found here on XDA or lenovo-forums.ru ...(the files inside the QSB one are found intact and not splitted...they MIGHT be ok..)

BUT at the moment I cannot test the file recovered..I will probably try to use the files in fastboot-mode and check what happens.

Also, I confirm: I turned OFF wifi, and ROM is 99% stable...with WiFi ON, even disconnected, the ROM did a lot of rebooting by itself...

Pino13, I got my phone in CZ through a friend (not XDA user)...I bet we could ask to some user here on XDA maybe?
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] :
ok this isn't funny anymore, wtf is qualcomm input device?!
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] velepost:
Something with usb driver and connection mode?
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] :
yes
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] velepost:
Do you have k920 listed in windows device manager usb? Maybe you should update drivers, especially if you are on win 10
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] codymamak:
I quote myself, as I am beginning the experiments...as is now, phone is really useable only in LTE/3G...wifi with s277 was causing reboots. I flashed CM12.1 from this thread hoping for a software issue..but was nothing better, even worse sometimes as bootloop was struck to "lenovo powered by android" logo for a lot of times, sometimes I was even unable to boot in TWRP (using 2.7.8.1 from xda here..but just now found a newer version in lenovo-forum.ru...will be next step).

Thanks to clone.x I download the QFIL package of S246...and using s277 modem.zip I exchanged the NON-HLOS.bin file inside from supposedly s277 to s246.

Now I flashed the zip. Boot is OK, and to my surprise, Wifi SEEMS to be better...I have had a couple reboots for now, but not too bad...

AS I wrote above, I will try to get also the other modems from the ROW QSB files I find...I will report each step I do.

For now, a couple days testing with NON-HLOS.bin of s246...and we will see (BTW, when I had stock s246 I had ZERO issues in any condition, ever).
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] Crazy_hatteR:
codymamak what is modem in S246 Rom? Can you use him? Can you extract and make zip for twrp with him?
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] codymamak:
AS I wrote, I simply copy the NON-HLOS.bin from the S246 QPST zip into the s277 modem zip, then entered TWRP 2.7.8.1 and flashed it...

For now, with WiFi it rebooted a couple times, but the logo-bootloop is a lot less likely: I mean, phone reboots, then it loads system...and might reboot before completing boot, but it's very rare that it locks in "Lenovo powered by Android" screen like it was doing before...

Then I disabled WiFi before put in charge and go to bed yesterday at 22.00, and now I am using the phone...from this morning at 6AM unplug the power supply, it's perfectly fine and fast...and at 86% battery with inbox (3 emails) and whatsapp running...

I think I will switch the modem to an older one...
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] clone.x:
Here is a collections of "MODEMS" from Lenovo Android 5.0.2 ROW firmware 246 - 271 -277.

Install in TWRP Recovery.

Lenovo Vibe Z2 Pro ROW Modem S246

Lenovo Vibe Z2 Pro ROW Modem S271

Lenovo Vibe Z2 Pro ROW Modem S277

c.x
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] :
i flashed 277 modem zip yesterday before clean install of CM, no reboots or signal drops so i can't help
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] Crazy_hatteR:
With s277 modem in CM i got random reboot. After flash s146 modem got only one, close after flash. 2 day no more reboot. I not use wifi, got unlimited 3g from operator.

Ps. Clone.x thaks fro modem, will try s246.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] codymamak:
Could you please try to check situation also with WiFi?

I know you woudn't benefit but it's useful to know!
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] codymamak:
Ok...seems it's the end.

Phone keeps rebootling, tried to flash again everything after even updating TWRP to russia one...even clean all the partitions including userdata...nothing works...

Also, if I try to restore TWRP backup, it won't complete and give the blue LED...

I think this is it, it's gone :(

---------- Post added at 10:12 PM ---------- Previous post was at 09:26 PM ----------

Managed to reflash S246 (connected while blue led revealed mode in 9006 instead of 9008, turn off with Vol+ made 9008 and flash went in...)...but now, it exited with an error :

Total download file size: 2196,735MB

Throughput: 14,17248M/s

Reset Phone

Waiting for reset done...

Download Fail:FireHose Fail Fail to find QDLoader port after switch

Finish Download

At the "waiting for reset phone, it rebooted...black screen, nothing else, nothing.

If I keep pressed power, after a while it vibrates, but nothing else. If I keep pressing, it keeps vibrating every few seconds, but NO LEDs and NO any other sign of life.

Now it is not recognized by windows, at all.

Someone can tell me how to open phone and disconnect battery? Maybe it's sufficient......who knows..