How to downgrade to Android 6.0? - Lenovo P2 Questions & Answers

Hello, my device is on Nougat not rooted, bootloader is still locked and I don't have custom recovery is there a safe way to downgrade to Marshmallow??

This is always risky ......

mishua0 said:
This is always risky ......
Click to expand...
Click to collapse
Download software in below link.... after fastboot run the batch file instead of following the step mentioned in the article.
Bit risky but worked for me.
https://www.getdroidtips.com/install-official-stock-rom-for-lenovo-p2-p2a42/

PrasadD said:
Download software in below link.... after fastboot run the batch file instead of following the step mentioned in the article.
Bit risky but worked for me.
https://www.getdroidtips.com/install-official-stock-rom-for-lenovo-p2-p2a42/
Click to expand...
Click to collapse
What is the batch file you mean't ? Can you make it more clear for me ?

sam razzy said:
What is the batch file you mean't ? Can you make it more clear for me ?
Click to expand...
Click to collapse
After downloading the file P2a42_S048_161111_ROW_fastboot... extract it. (of course like everyone I hate registration on website but no choice)
It will have a batch file flashall.bat.
Run this batch file while in fastboot mode (as mentioned earlier don't use the command "fastboot flashall")
In the first run I didn't get network signal. I installed again and got the signal. So it is up to you to take risk or not.

Related

Help me Out please! I am Stuck.

Hello everyone.
Here are my informations:
*My phone: ASUS ZenFone 2 Model ZE551ML
*System build number: CN-2.19.40.16
*My Goal: Change my firmware to WW version.
*What i have tried:
A: Fastbooted my phone to various versions (2.15 , 2.17 , 2.18) via Wugfresh through CMD (boot.img,Recovery.img,droidboot.img)
B: Downloaded the Uprade files (1.08 GB) of different versions. Copied to my internal Drive (Changing the name From WW To CN)
But the upgrade notification didn't show up. I tried everything in every forum. didn't work.
So finally i figured out maybe it is because my build number is 2.19
so i am looking for a way to change my build number to last versions like 2.15
I don't know how to flash system.img (where to find the file and how to flash it.)
I am new to these things so please help me step by step.
Thanks for your time.
bluestar110h said:
Hello everyone.
Here are my informations:
*My phone: ASUS ZenFone 2 Model ZE551ML
*System build number: CN-2.19.40.16
*My Goal: Change my firmware to WW version.
*What i have tried:
A: Fastbooted my phone to various versions (2.15 , 2.17 , 2.18) via Wugfresh through CMD (boot.img,Recovery.img,droidboot.img)
B: Downloaded the Uprade files (1.08 GB) of different versions. Copied to my internal Drive (Changing the name From WW To CN)
But the upgrade notification didn't show up. I tried everything in every forum. didn't work.
So finally i figured out maybe it is because my build number is 2.19
so i am looking for a way to change my build number to last versions like 2.15
I don't know how to flash system.img (where to find the file and how to flash it.)
I am new to these things so please help me step by step.
Thanks for your time.
Click to expand...
Click to collapse
See this thread... Maybe this will help u...
http://forum.xda-developers.com/zenfone2/general/asus-zenfone-2-flashing-recovery-mode-t3096596
If u still have problem...please tell... We will help u
mhp1995 said:
See this thread... Maybe this will help u...
http://forum.xda-developers.com/zenfone2/general/asus-zenfone-2-flashing-recovery-mode-t3096596
If u still have problem...please tell... We will help u
Click to expand...
Click to collapse
Hello and thanks for your answer.
I am a Newbie
but i search all the threads. (i even learned how to root and unroot. how to flash and all.)
i did everything as said.
the only problem is that i don't get the upgrade notification in final step.
i think maybe it is because my build-number version is 2.19.40.16(CN)
what should i do... help me please.
bluestar110h said:
Hello and thanks for your answer.
I am a Newbie
but i search all the threads. (i even learned how to root and unroot. how to flash and all.)
i did everything as said.
the only problem is that i don't get the upgrade notification in final step.
i think maybe it is because my build-number version is 2.19.40.16(CN)
what should i do... help me please.
Click to expand...
Click to collapse
y do u need to roll back to the previous update? Have u tried flashing via adb (using sideload command)..
mhp1995 said:
y do u need to roll back to the previous update? Have u tried flashing via adb (using sideload command)..
Click to expand...
Click to collapse
I have spent 2 days skipping university reading about this.
I don't know the difference between using fastboot and adb.
I have this file : UL-Z00A-WW-2.17.40.12-user.zip (1.08 Gb) and 3 img files (boot,droidboot,recovery)
and i have fast-boot installed.
please tell me how can i change my firmware which is "2.19.40.16" which is "CN" to any "WW" version...
I am Stuck!
bluestar110h said:
I have spent 2 days skipping university reading about this.
I don't know the difference between using fastboot and adb.
I have this file : UL-Z00A-WW-2.17.40.12-user.zip (1.08 Gb) and 3 img files (boot,droidboot,recovery)
and i have fast-boot installed.
please tell me how can i change my firmware which is "2.19.40.16" which is "CN" to any "WW" version...
I am Stuck!
Click to expand...
Click to collapse
Follow this guide.
http://forum.xda-developers.com/zenfone2/help/how-to-upgrade-cn-version-to-ww-t3101556
1) boot into bootloader and flash Boot.img, Droidboot.img and Recovery.img
2) Rename your UL-Z00A-WW-2.17.40.12-user.zip to UL-Z00A-CN-2.17.40.12-user.zip
3) Reboot normally and upload the zip file to the root directory of your phone.
4) Hopefully, you'll get a notification about an update being available.
As to ADB and fastboot, basically, you use adb when you're connected to usb debugging and fastboot when you're in the bootloader.
Follow step one here to make sure they're setup.
http://forum.xda-developers.com/zenfone2/general/asus-zenfone-2-flashing-recovery-mode-t3096596
If your adb / fastboot is working, you should be able to see your device when you do "adb devices" or "fastboot devices"
Have you tried this method here ---> http://www.asus-zenfone.com/2015/04/asus-zenfone-2-pre-root-systemimg.html
and for step #5 use these in command
fastboot flash recovery recovery.img
fastboot flash boot boot.img
fastboot flash system system.img
Skynet00 said:
Follow this guide.
http://forum.xda-developers.com/zenfone2/help/how-to-upgrade-cn-version-to-ww-t3101556
1) boot into bootloader and flash Boot.img, Droidboot.img and Recovery.img
2) Rename your UL-Z00A-WW-2.17.40.12-user.zip to UL-Z00A-CN-2.17.40.12-user.zip
3) Reboot normally and upload the zip file to the root directory of your phone.
4) Hopefully, you'll get a notification about an update being available.
As to ADB and fastboot, basically, you use adb when you're connected to usb debugging and fastboot when you're in the bootloader.
Follow step one here to make sure they're setup.
http://forum.xda-developers.com/zenfone2/general/asus-zenfone-2-flashing-recovery-mode-t3096596
If your adb / fastboot is working, you should be able to see your device when you do "adb devices" or "fastboot devices"
Click to expand...
Click to collapse
Thanks for your answer.
I tried the Fast-boot step by step exactly
but i didnt get the notification for update.
is there anyway to update to a firmware directly i mean to setup the update manually?
please let me know.
the ways in the forum you mentioned didn't work on my phone. (i can flash successfully but i wont get the update notification.)
I think the reason is because my Chinese firmware version is 2.19 higher than WW version (2.18).
that is why i thought maybe if i go back to last update maybe i can do it .
Trust me i have tried many ways.
So it remain with 2 questions:
1. can i update a firmware (2.18 WW) manually?
2. can i change my CN Firmware to last versions?
And if the answer is yes please help me step by step cause this is really my first time.
Thanks for your time.
bluestar110h said:
I have spent 2 days skipping university reading about this.
I don't know the difference between using fastboot and adb.
I have this file : UL-Z00A-WW-2.17.40.12-user.zip (1.08 Gb) and 3 img files (boot,droidboot,recovery)
and i have fast-boot installed.
please tell me how can i change my firmware which is "2.19.40.16" which is "CN" to any "WW" version...
I am Stuck!
Click to expand...
Click to collapse
Skynet00 said:
Follow this guide.
http://forum.xda-developers.com/zenfone2/help/how-to-upgrade-cn-version-to-ww-t3101556
1) boot into bootloader and flash Boot.img, Droidboot.img and Recovery.img
2) Rename your UL-Z00A-WW-2.17.40.12-user.zip to UL-Z00A-CN-2.17.40.12-user.zip
3) Reboot normally and upload the zip file to the root directory of your phone.
4) Hopefully, you'll get a notification about an update being available.
As to ADB and fastboot, basically, you use adb when you're connected to usb debugging and fastboot when you're in the bootloader.
Follow step one here to make sure they're setup.
http://forum.xda-developers.com/zenfone2/general/asus-zenfone-2-flashing-recovery-mode-t3096596
If your adb / fastboot is working, you should be able to see your device when you do "adb devices" or "fastboot devices"
Click to expand...
Click to collapse
He has already done this procedure as he is saying in the op that "notification wont show up"... Flashing via adb (sideloading) is the method u can flash the rom manually.. Thats what i am saying... Dont wait for notification... Just flash the rom manually...
To flash manually do this:
Just download the previous CN version (2.18.40.12) http://dlcdnet.asus.com/pub/ASUS/ZenFone/ZE551ML/UL-Z00A-CN-2.18.40.12-user.zip sideload it via adb and then follow this guide (see #5 changing CN version to WW version) http://forum.xda-developers.com/zenfone2/general/asus-zenfone-2-flashing-recovery-mode-t3096596... If u still dont get any notification just flash the rom and sideload this rom via adb...There is no need of waiting for notification... You will be flashing the rom directly so you dont have to worry about notification and all... Please see first how to flash via adb... flashing via adb is the only option i see and dont use any WugFresh or anything...Just install adb and asus drivers on ur pc... Follow the steps i told u and i think u will be on the required firmware
mhp1995 said:
.. You will be flashing the rom directly so you dont have to worry about notification and all... Please see first how to flash via adb... flashing via adb is the only option i see and dont use any WugFresh or anything...Just install adb and asus drivers on ur pc... Follow the steps i told u and i think u will be on the required firmware
Click to expand...
Click to collapse
Exactly.... i need to do it manually
Thanks,
Now can you tell me a forum thread about how to flash via adb for ZenFone2?
bluestar110h said:
Exactly.... i need to do it manually
Thanks,
Now can you tell me a forum thread about how to flash via adb for ZenFone2?
Click to expand...
Click to collapse
bro i have given u the link for that thousand times....It has everything in it...here please read the thread first....PLEASE http://forum.xda-developers.com/zenfone2/general/asus-zenfone-2-flashing-recovery-mode-t3096596
mhp1995 said:
bro i have given u the link for that thousand times....It has everything in it...here please read the thread first....PLEASE http://forum.xda-developers.com/zenfone2/general/asus-zenfone-2-flashing-recovery-mode-t3096596
Click to expand...
Click to collapse
Thanks
I am sorry that i am so amateur
I read this page but i don't know which one is for upgrading manually.
the step 5 says it is for changing from CN to WW but it is not with Adb
please tell me which step is should follow to manually install "WW" firmware on my exising "CN" firmware
sorry to bother you...
bluestar110h said:
Thanks
I am sorry that i am so amateur
I read this page but i don't know which one is for upgrading manually.
the step 5 says it is for changing from CN to WW but it is not with Adb
please tell me which step is should follow to manually install "WW" firmware on my exising "CN" firmware
sorry to bother you...
Click to expand...
Click to collapse
First of all i should congratulate u for finally converting to WW :good: i saw ur another thread... And no need to say sorry... its just that i kinda hate people who dont even try or search before posting anything... I am also an amateur not some recognized developer so dont feel ashamed..I was like u once Anyways its good to know all ur probs have been solved..
mhp1995 said:
First of all i should congratulate u for finally converting to WW :good: i saw ur another thread... And no need to say sorry... its just that i kinda hate people who dont even try or search before posting anything... I am also an amateur not some recognized developer so dont feel ashamed..I was like u once Anyways its good to know all ur probs have been solved..
Click to expand...
Click to collapse
Hey There
Yes finally it was done.
Most of your helps made me successful. Thanks
First i used fastboot to change img files the the WW version (had i not done that adb wouldn't work.)
Then i used adb to manually update the firmware
thanks so much
just one final question:
Will i get the next WW updates automatically like before or i need to download the manually from now on?
Thanks again

[Q] Edit build.prop in a without root and locked bootloader device?

There any way to edit the build.prop without root and locked bootloader ?
leonardo_hd5 said:
There any way to edit the build.prop without root and locked bootloader ?
Click to expand...
Click to collapse
not possible. need root and unlocked bootloader..
I dont want to say anyones wrong normally u do have to have unlocked bl. I have ls991 no bl unlock ever. But does have root. I edit my build prop all the time. Some phones are picky and u have to mount the sys as r/w thought
leonardo_hd5 said:
There any way to edit the build.prop without root and locked bootloader ?
Click to expand...
Click to collapse
You can dump your system.img from device using Send_Command.exe and edit build.prop inside the image
Al0n said:
You can dump your system.img from device using Send_Command.exe and edit build.prop inside the image
Click to expand...
Click to collapse
yeah, i had thought about it . However, I don't now which commands use to extract and flashing the image back . I did something similar to flash the root img when I was using the lollipop .
I tried to extract the .cab file to get system.img within the KDZ , but he always gives error. I am following some guides on how to extract files .kdz .
leonardo_hd5 said:
yeah, i had thought about it . However, I don't now which commands use to extract and flashing the image back . I did something similar to flash the root img when I was using the lollipop .
I tried to extract the .cab file to get system.img within the KDZ , but he always gives error. I am following some guides on how to extract files .kdz .
Click to expand...
Click to collapse
You have to use the same commands from Lollipop on Marshmallow.
Al0n said:
You have to use the same commands from Lollipop on Marshmallow.
Click to expand...
Click to collapse
I could not find anywhere else on how to extract the system.img image from my phone using send_comand .
I tried in every way to extract the KDZ , but without success , it seems that the old tutorials do not work in the new KDZ :crying:
I managed to pull the system.img to my folder of the phone. I can see the file, but I get an error when copying it to the PC. I used the following code
dd if=/dev/block/mmcblk0 bs=8192 skip=55296 count=529920 of=/data/media/0/system.img
Click to expand...
Click to collapse
When trying to copy by using adb pull , he says I 'm not allowed . The file is in the / sdcard / .
What are u guys doing. I just use build prop editor. I has a ls991. I dont have to dimp my system image.
Sorry apparantly i didnt read. Didnt see no root
The idea is sound, as the bootloader lock should only check for an unmodified boot image (kernel).
Theoretically you could install exposed, etc. on the image. I had it in mind to build something for the Canadian variant once I have time.
Yes, the Sprint LG G4 staff even has a modified system.img marshmallow . I believe I'm 90 % of been way , just need to figure out how to get permission to move the system.img from / sdcard / to my PC.
Check out the low effort root thread, there are commands for dumping the system partition for each model. You'll then need a Linux distribution installed to mount and modify the image. There are also instructions for flashing modified system image back to the phone in the thread through download mode commands. Be very careful you are using the right command for your model.
If I have time I'll try to get more details to you but you should be able to find everything you need right here on XDA.
Thank you so much guys! I managed to extract and edit the system.img on ubuntu and I've done the flash. Everything working 100% , finally my phone seems to have 5.5 -inch true. I'm using 530dpi now modified in build.prop without adb bugs (Marshmallow ROM)
I took the trip and already and enabled all apps in double window too!
leonardo_hd5 said:
Thank you so much guys! I managed to extract and edit the system.img on ubuntu and I've done the flash. Everything working 100% , finally my phone seems to have 5.5 -inch true. I'm using 530dpi now modified in build.prop without adb bugs (Marshmallow ROM)
I took the trip and already and enabled all apps in double window too!
Click to expand...
Click to collapse
Ohh thats great new my friend!!Can u write step by step how u done it?which model u have??
I would like to write a tutorial in English, but my English is very bad . I wrote a tutorial in Portuguese , I can use google translate and risk making one in English, if there is no problem..
Leonardo, good job and thank you for writing back.
Did you run into any issues? I am hoping to do xposed if time allows.
wolfy said:
Leonardo, good job and thank you for writing back.
Did you run into any issues? I am hoping to do xposed if time allows.
Click to expand...
Click to collapse
I'm running here without any problem ! No graphic bug or something , everything ok! You can install Xposed only in img, without root?
I would like to disable some apps and install some who originally comes in .zip format , but need to research about it
leonardo_hd5 said:
I'm running here without any problem ! No graphic bug or something , everything ok! You can install Xposed only in img, without root?
I would like to disable some apps and install some who originally comes in .zip format , but need to research about it
Click to expand...
Click to collapse
I checked before, xposed without root should be okay, just need to replace the correct file on the system image.
I will replace and pasted the files downloaded from Xposed .zip. From what I saw in the scripts, there is no line to be added. But I will not have time for flash in this week ..
leonardo_hd5 said:
I would like to write a tutorial in English, but my English is very bad . I wrote a tutorial in Portuguese , I can use google translate and risk making one in English, if there is no problem..
Click to expand...
Click to collapse
Hi! I'm Portuguese, send me your tutorial! Thanks
Enviado do meu LG-H815 através de Tapatalk

Moto Z Play bricked after trying to root

Solved my problem by flashing the FULL firmware and not only the boot.img !
Could a mod delete the thread please ? Thanks !
Pouni said:
Solved my problem by flashing the FULL firmware and not only the boot.img !
Could a mod delete the thread please ? Thanks !
Click to expand...
Click to collapse
How did you accomplish this? I can't get RSD Lite to detect my phone (although fastboot devices shows it listed) and I can't flash the full firmware via adb because I keep getting "Image not signed or corrupt". I'm really confused.
Pouni said:
Solved my problem by flashing the FULL firmware and not only the boot.img !
Could a mod delete the thread please ? Thanks !
Click to expand...
Click to collapse
Please don't ask mods to delete threads because of successful outcomes - post your solution instead. Leave the threads up as they are a useful resource for others (at least those who search before posting! )
Thanks
Sent from my SAMSUNG-SM-G920A using Tapatalk
joesee said:
How did you accomplish this? I can't get RSD Lite to detect my phone (although fastboot devices shows it listed) and I can't flash the full firmware via adb because I keep getting "Image not signed or corrupt". I'm really confused.
Click to expand...
Click to collapse
I kept getting the "Image not signed or corrupt" whenever I had to flash the boot.img but I ignored the error once to try and see if it had any positive outcome, and it worked fine !
Can't flash stock ROM, can you do a detail installation log?
Pouni said:
I kept getting the "Image not signed or corrupt" whenever I had to flash the boot.img but I ignored the error once to try and see if it had any positive outcome, and it worked fine !
Click to expand...
Click to collapse
Is ur bootloader unlocked or not??
If not try unlock ur bootloader than try it ll work
From what I can tell you will always get the "Image not signed or corrupt" error, but it works anyways. Idk why but it doesnt matter as long as it works . Motorola(Lenovo) has the instructions to flash stock firmware on your device, just download the firmware for your device and follow those instructions.
jon7701 said:
From what I can tell you will always get the "Image not signed or corrupt" error, but it works anyways. Idk why but it doesnt matter as long as it works . Motorola(Lenovo) has the instructions to flash stock firmware on your device, just download the firmware for your device and follow those instructions.
Click to expand...
Click to collapse
Jon, can you help me? already tried to flash stock rom in fastboot but it doesn't flash.... i'm tired of this
Vitxlss said:
Jon, can you help me? already tried to flash stock rom in fastboot but it doesn't flash.... i'm tired of this
Click to expand...
Click to collapse
Did you only flash the stock rom or did you try to flash everything? If you didnt try to flash everything I would try that and make sure you have the correct stock firmware for your device before you do that. Theres not really much else you can do other than try flashing in twrp, but idk if twrp supports space chunks, but it does support images. If it really comes down to it, you can force flash the system partition in twrp, but you would need the whole system image and not space chunks.

T-Mobile Oreo FLASHALL???

Does anyone have a TMO Moto Z2 Force FLASHALL for the lastest OREO build?
I was on Oreo and i was testing a ROM in Devlopement and someone BASEBAND <not found> so i have no WiFi, no signal, but on a good note the ROM booted...
So any with an TMO OREO FlashAll, please share...
Thanks in advance
I haven't been able to find anyone or any place that has the latest TMO flash all available, but here is the update for the previous 8.0 update for TMO:
here
Shiro12 said:
I haven't been able to find anyone or any place that has the latest TMO flash all available, but here is the update for the previous 8.0 update for TMO:
here
Click to expand...
Click to collapse
Thanks but i need the entire build, not just the up date. I lost my MAC and IMEI and the full firmware is my only way of fixing it, i think
AndroidDevices said:
Thanks but i need the entire build, not just the up date. I lost my MAC and IMEI and the full firmware is my only way of fixing it, i think
Click to expand...
Click to collapse
That should be what you need, I came from a test build for Nash and used the FlashAll zip (RET specifically) from that site to take me all the way back to stock., Hence why each zip is ~3GB uncompressed.
Shiro12 said:
That should be what you need, I came from a test build for Nash and used the FlashAll zip (RET specifically) from that site to take me all the way back to stock., Hence why each zip is ~3GB uncompressed.
Click to expand...
Click to collapse
There is no FLASHALL in the file and i cannot get RSD to recognize device is in fastboot mode
extract This into the firmware's folder and adapt the bat file as needed
Shiro12 said:
extract This into the firmware's folder and adapt the bat file as needed
Click to expand...
Click to collapse
Thanks, flashed and still no baseband... wtf
AndroidDevices said:
Thanks, flashed and still no baseband... wtf
Click to expand...
Click to collapse
There should be a NON_HLOS.bin in that folder, if im not mistaken a fastboot command posted here should fix that, but i should mention that i have not done this myself and can not vouch for it. maybe someone else has a more (for a lack of a better word) trusted way to fix your issue
Shiro12 said:
There should be a NON_HLOS.bin in that folder, if im not mistaken a fastboot command posted here should fix that, but i should mention that i have not done this myself and can not vouch for it. maybe someone else has a more (for a lack of a better word) trusted way to fix your issue
Click to expand...
Click to collapse
I'm having the same issue. I've downloaded every 2+gb zipped XT1789-04 factory reset zip I can get my hands on. It says it's flashing a modem, but I still get no baseband when I go into fastboot. no wifi or cell signal. I've tried the commands linked above after flashing. If someone has a solution I'd be eternally grateful.
Shiro12 said:
There should be a NON_HLOS.bin in that folder, if im not mistaken a fastboot command posted here should fix that, but i should mention that i have not done this myself and can not vouch for it. maybe someone else has a more (for a lack of a better word) trusted way to fix your issue
Click to expand...
Click to collapse
Thanks but NO GO .
I ran into this problem attempting to root the latest Oreo OCX27.1 and got into a bootloop. The only Oreo firmware available to download isis the previous OCX27 and I believe that downgrading to that causes the lost of baseband and imei. I am waiting to see when OCX27.1 will be available to download so I can try to return to stock to 27.1 see if it restores my baseband
The problem i am seeing is that none of the stock firmware are for ocx27.1. they are all for ocx27. i have seen an ota update that is for the ocx27.1 but i have not figured out how to extract it yet
mattlowry said:
The problem i am seeing is that none of the stock firmware are for ocx27.1. they are all for ocx27. i have seen an ota update that is for the ocx27.1 but i have not figured out how to extract it yet
Click to expand...
Click to collapse
https://forum.xda-developers.com/z2-force/help/tmo-oxc27-1-oreo-firmware-t3757469
droidgreg said:
https://forum.xda-developers.com/z2-force/help/tmo-oxc27-1-oreo-firmware-t3757469
Click to expand...
Click to collapse
thats the ota. if you know of a way to extract the contents of the rom for that file i would love to hear it
mattlowry said:
thats the ota. if you know of a way to extract the contents of the rom for that file i would love to hear it
Click to expand...
Click to collapse
Open the file win Winrar or any Zip program and you should be able to extract the contents
droidgreg said:
Open the file win Winrar or any Zip program and you should be able to extract the contents
Click to expand...
Click to collapse
not exactly what im looking for. all of the rom contents are loaded in the payload.bin file. That is the file we need extracted
mattlowry said:
not exactly what im looking for. all of the rom contents are loaded in the payload.bin file. That is the file we need extracted
Click to expand...
Click to collapse
I tried daemon tools lite and PowerISO but both failed to extract the bin file. I'll keep looking...
droidgreg said:
I tried daemon tools lite and PowerISO but both failed to extract the bin file. I'll keep looking...
Click to expand...
Click to collapse
from what i have seen there is not a way to extract it currently
I'm gonna mess with it in linux. I'm no dev but I'll see what I can pull apart, hopefully I find something useful.
https://drive.google.com/file/d/13pKSMS5zGuYsr1EEDma0L6AxHDSUmu2g/view?usp=drivesdk

Bootloader isn't unlocking again!!

I unlocked the bootloader of my Zuk Z2 in AUG 2017 and I was enjoying the world of custom roms on it and a treble build just ruined everything and I soft bricked the device and I took it to the nearest Lenovo service center and they managaed to fix it after 4 days and now I tried to unlock the boot loader and it fails again and again...and again I tried every thing even ALL IN ONE TOOL.Is there any solution for this?Please reply ASAP
Thank you in Adv
They may have changed something which changed the serial no. I think. So the image file isn't matching up.
Install stock ROM and check the serial number. Then request for new unlocking bootloader image file as per that serial no.
Just a guess. Not sure about it.
NaXal said:
They may have changed something which changed the serial no. I think. So the image file isn't matching up.
Install stock ROM and check the serial number. Then request for new unlocking bootloader image file as per that serial no.
Just a guess. Not sure about it.
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I tried it sir but no luck :crying:
Which method unlocking are you following?
NaXal said:
Which method unlocking are you following?
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Flashing the unlock_bootloader.img and I even tried the all in one tool sir
@sreek995 said:
Flashing the unlock_bootloader.img and I even tried the all in one tool sir
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The CMD command must be giving some output message. Can you copy that here. As what is the message it is generating ?
NaXal said:
The CMD command must be giving some output message. Can you copy that here. As what is the message it is generating ?
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sure sir please wait a second
@sreek995 said:
sure sir please wait a second
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This was not my pc but same error
https://drive.google.com/file/d/0B9n...w?usp=drivesdk
@sreek995 said:
This was not my pc but same error
https://drive.google.com/file/d/0B9n...w?usp=drivesdk
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Your link isn't working.
Code:
Sorry, the file you have requested does not exist.
Try to run the bootloader image flashing command of that adb cmd (remember to run adb under admin mode of windows) and post that error message or what ever output it is generating after that command is run.
Thanks.
NaXal said:
Your link isn't working.
Code:
Sorry, the file you have requested does not exist.
Try to run the bootloader image flashing command of that adb cmd (remember to run adb under admin mode of windows) and post that error message or what ever output it is generating after that command is run.
Thanks.
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sorry sir my fault Im on it now:laugh:
Sorry again im late
@sreek995 said:
sorry sir my fault I on it now:laugh:
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https://twitter.com/sreek995/status/994642330719170560
https://twitter.com/sreek995/status/994642330719170560?s=19
I think you should revert back to 1.9 Stock ROM via QPST. Try with that ROM. not sure, but Service center guys may have got a corrupt ROM or something.
Flash the 1.9 stock ROM via QPST try unlocking with that.
NaXal said:
I think you should revert back to 1.9 Stock ROM via QPST. Try with that ROM. not sure, but Service center guys may have got a corrupt ROM or something.
Flash the 1.9 stock ROM via QPST try unlocking with that.
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Yeah may be I'll try and inform you later sir

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