Database Users

please help fast

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updated my n7 3g to 4.2.2 and now when i chose to unlock bootloader (with 4.2.1 chosen) it stops on waiting for adb mode when i write no.If i go to fastboot and write yes pertty much same,nothing changes...I got drivers and debugging on

help

Seems like adb is not working, most likely because of the new 4.2.2 security for adb debugging. I pulled my hair out for 3 hours the other night trying to get it to work. I had to uninstall the drivers, reboot, test, rinse repeat. I was using Wug's toolkit, it details everything pretty good.

Activate developer mode, enable adb, plug in your device, send an adb command (like adb devices). It will send back adb offline. Now look at your phone. You should see a screen about allowing adb from your computer. Allow it. Now once or twice, this prompt did not appear for me. I simply had to unplug and replug the device, then it appeared. Once it is allowed, test it by doing the old adb reboot bootloader and once there fastboot oem unlock and there you go!
Or you can continue with your tool kit at that point, up to you !!

Hi, FatalaS...
I'm not familiar with WugFresh's toolkit... or indeed any other toolkits... I'm more of a fastboot man.
I also generally don't tend to use adb much, except when I'm performing a full backup (via adb pull) to my laptop (which is infrequent, as it seems to take forever - a LOT of stuff to be backed up!).
I use fastboot primarily... for flashing custom recoveries and new kernels/boot.img's.
I do this by copying my chosen recovery.img file (currently TWRP, renamed as recovery.img) or a boot.img file (currently franco's, renamed as boot.img), into the same folder on my laptop, where I keep my fastboot and adb executables.
I shutdown my Nexus 7, and reboot into FASTBOOT/BOOTLOADER mode by pressing and HOLDING the VOL DOWN button, and whilst HOLDING, press the POWER-ON BUTTON.
Having connected my Nexus 7 to my laptop, I then check I have a valid FASTBOOT connection (via a command prompt window, open on the folder I alluded to above), with...
Code:
fastboot devices
This should report a serial number along the lines of something like this...
Code:
015d2424b1xxxxx fastboot
...and then... (and this is directly pertinent to your original question)...
Code:
fastboot oem unlock
...will unlock the bootloader - YOU DON'T NEED ADB FOR THIS - JUST ENSURE YOUR TABLET IS IN FASTBOOT MODE AND RUN THIS COMMAND.
I did this several months ago on my Nexus 7, and once done, it never needs to be repeated... unless you relock the bootloader at some point, with the surprisingly original syntax...
Code:
fastboot oem lock
------------
Having done this (unlocked the bootloader), you can then fastboot flash custom recoveries (like TWRP or CWM) with...
Code:
fastboot flash recovery <your chosen recovery.img>
...or flash CERTAIN (but not all) custom kernels, with...
Code:
fastboot flash boot <your chosen boot.img>
Some kernels consist of more than just a simple boot.img (such as franco's)... some put various files in various parts of /system and thus need to be flashed via your chosen custom recovery, in much the same way custom ROMs are flashed.
-----------
Hope this somewhat lengthy post helps...
Rgrds,
Ged.

You can't unlock 4.2.2 Android with 4.2.1 Toolkit the Android version MUST MATCH.
http://www.youtube.com/watch?v=GnHFtFTp-cc
Listen to this video CAREFULLY + read the Toolkit thread slowly and you will find your solution.

HELP!!! My nexus 4 is broken and failed to flash any img

I've tried to use the Wug's Nexus Root Toolkit (v1.7.9) and used the option of Flash stock + Unroot,
I've entered the bootloader mode to flash but I got this............ :crying:
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my nexus wont flash the img whatever I try to flash by the toolkit
please help

hey, did you unlock the bootloader 1st?

opssemnik said:
hey, did you unlock the bootloader 1st?
Click to expand...
Click to collapse
yes I did, my bootloader has already been unlocked

Flash factory image manually then, I don't trust in any program except my head
1. Download factory image
2. Download adb and fastboot
3. Extract factory image (all the files) in the adb/fastboot folder
4. Go into bootloader mode and connect it to the pc
5. Open a command window in the adb/fastboot folder
6. Type
Code:
fastboot erase system
fastboot erase userdata
fastboot erase cache
fastboot erase recovery
fastboot erase boot
7. Go to the adb/fastboot folder and select flash-all.bat file, and let it flash
It works absolutely always!!!

luiseteyo said:
Flash factory image manually then, I don't trust in any program except my head
1. Download factory image
2. Download adb and fastboot
3. Extract factory image (all the files) in the adb/fastboot folder
4. Go into bootloader mode and connect it to the pc
5. Open a command window in the adb/fastboot folder
6. Type
Code:
fastboot erase system
fastboot erase userdata
fastboot erase cache
fastboot erase recovery
fastboot erase boot
7. Go to the adb/fastboot folder and select flash-all.bat file, and let it flash
It works absolutely always!!!
Click to expand...
Click to collapse
I've no idea how to open a command window in the adb/fastboot folder :silly:
and what should be the folder name of the adb/fastboot folder?

John_Yiu said:
I've no idea how to open a command window in the adb/fastboot folder :silly:
and what should be the folder name of the adb/fastboot folder?
Click to expand...
Click to collapse
Are u using windows?

i suggest you go to this thread as you don't know how to use adb and fastboot http://forum.xda-developers.com/announcement.php?a=2018179
Sent from my Nexus 4 using XDA Premium 4 mobile app

shift + righ click on the folder and select open cmd prompt

problems solved! my phone is back, thanks all

Redmi 4 Pro Only Turn On Fastboot

Hi, i flashed my device with this ROM (xiaomi.eu/community/threads/7-9-21.41658/), at the end i reboot and never turn on again, only have access to fastboot, don't even know if is charging.
Bootloader locked again, tried to unlock again and i can't.
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Someone can help?

1. Downloade and Extract Fastboot Rom
http://en.miui.com/a-234.html
2. Download and Install Mi Flashtool
http://en.miui.com/thread-593524-1-1.html
3. Download EDL from fastboot (credit to emuzychenko xda)
https://forum.xda-developers.com/attachment.php?attachmentid=3775693&d=1465328762
4. Download and install Qualcomm usb driver
http://en.miui.com/forum.php?mod=at...MjIzMjc4MDI4NnwyMzUxMDU=&ck=56381677&mobile=2
>power off your phone.
>vol down + power (fastboot mode)
>double click edl Window Coomend Script (.cmd) file
>now you are on edl mode(check device manager)
>open mi flashtool and select fastboot rom folder
>choose clean all option
>refresh
>flash

Thaw Thaw Npt said:
1. Downloade and Extract Fastboot Rom
http://en.miui.com/a-234.html
2. Download and Install Mi Flashtool
http://en.miui.com/thread-593524-1-1.html
3. Download EDL from fastboot (credit to emuzychenko xda)
https://forum.xda-developers.com/attachment.php?attachmentid=3775693&d=1465328762
4. Download and install Qualcomm usb driver
http://en.miui.com/forum.php?mod=at...MjIzMjc4MDI4NnwyMzUxMDU=&ck=56381677&mobile=2
>power off your phone.
>vol down + power (fastboot mode)
>double click edl Window Coomend Script (.cmd) file
>now you are on edl mode(check device manager)
>open mi flashtool and select fastboot rom folder
>choose clean all option
>refresh
>flash
Click to expand...
Click to collapse
Not working, same errors.

fabioziro23 said:
Not working, same errors.
Click to expand...
Click to collapse
I think the folder you extracted the rom must be in C:\ and have no spaces or symbols, e.g. C:\miuirom and not C:\miui rom or C:\miui_rom.

fabioziro23 said:
Hi, i flashed my device with this ROM (xiaomi.eu/community/threads/7-9-21.41658/), at the end i reboot and never turn on again, only have access to fastboot, don't even know if is charging.
Bootloader locked again, tried to unlock again and i can't.
Someone can help?
Click to expand...
Click to collapse
Your device is in locked bootloader, you need to unlock your bootloader first before flashing ane image

T3sla said:
I think the folder you extracted the rom must be in C:\ and have no spaces or symbols, e.g. C:\miuirom and not C:\miui rom or C:\miui_rom.
Click to expand...
Click to collapse
Hi, the images are just an exemeple..
Azrul Haifan said:
Your device is in locked bootloader, you need to unlock your bootloader first before flashing ane image
Click to expand...
Click to collapse
Yes its locked, but it was unlocked, instaled twrp and rom whitout any problem, after reboot to forst boot the bootloader was locked again, i don't know why!
I tried lots of solutions that worked to many people, but anything thats online was useless for me, even the solutions with hardware...
Anyway thanks for replying, but i already solved the problem, just needed to unlock whith miflash unlock and it booted with the new rom i had instaled before locked again.

fabioziro23 said:
Hi, i flashed my device with this ROM (xiaomi.eu/community/threads/7-9-21.41658/), at the end i reboot and never turn on again, only have access to fastboot, don't even know if is charging.
Bootloader locked again, tried to unlock again and i can't.
Someone can help?
Click to expand...
Click to collapse
watch this but i am not responsible for any damage.

[Howto] unlock bootloader and get TWRP on ZUK Z2 Pro

DISCLAIMER:
take care, this will erase all data on phone. I'm not responsible for any data loss. Follow the instructions on your own risk!
---------------------------------------
You updated to ZUI 3.5 using https://forum.xda-developers.com/zu...-to-zui-z2-t3928693/post79493369#post79493369 ? Congrats!
Once you updated to ZUI 3.5 you don't need to get unlock_bootloader.img anymore.
To activate developer option click 7 times on ZUI version under settings - system - about:
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-
-
Once you did that you get developer options in settings - system:
Click on it and activate the options OEM unlocking and USB debugging
You can accept the following warning:
Now:
Setup ADB and Fastboot on your PC. (can be found here as well: https://forum.xda-developers.com/showthread.php?t=2317790)
Connect your Lenovo ZUK phone to the PC.
└ If you get a prompt on phone’s screen to Allow USB debugging, tap OK.
Open a command window inside the folder where you saved your adb and fastboot install (I suggest using C:\ZUK). To do this, open the folder and then “Shift + Right click” on any empty white-space inside the folder and select “Open command window here” from the context menu.
Once command window is open, issue the following command to boot device into bootloader mode:
adb reboot bootloader
Once in bootloader mode, issue the following command to unlock the device:
fastboot -i 0x2b4c oem unlock-go
└ You’ll see the following output:
...
OKAY [ 0.041s]
finished. total time: 0.041s
Now phone will reboot. Let the reboot finish completely. Then do "adb reboot bootloader" again.
now flashing twrp. Download latest twrp version here: https://twrp.me/zuk/zukz2row.html
Make sure the downloaded twrp version is located in adb directory as well. Rename it into twrp.img. Then in command prompt type:
fastboot flash recovery twrp.img
(if your device is not recognized check hardware manager for driver. You may use fastboot -i 0x2b4c flash recovery twrp.img instead)
Reboot your phone to system using the following command:
fastboot reboot
That's it. You unlocked bootloader and flashed twrp.
--------------------------------------------------------------------

Hello,
I have done evreything as you described in your "howto"
I have now unlock bootloader and TWRP installed. Each time I try to flash a custom rom I have "fail to mount /vendor (invalid argument)..." error.
Still the custom rom I have tried to flash were recent Pie roms so factory to vendor problem should not be the problem.
I think there is somethig here that I did not understood
Can someone help me please?
Thank you

fastboot does not accept the option -i
Thanks for the detailed description.
weimerd said:
DISCLAIMER:
take care, this will erase all data on phone. I'm not responsible for any data loss. Follow the instructions on your own risk!
---------------------------------------
5. Once in bootloader mode, issue the following command to unlock the device:
fastboot -i 0x2b4c oem unlock-go
└ You’ll see the following output:
...
OKAY [ 0.041s]
finished. total time: 0.041s
--------------------------------------------------------------------
Click to expand...
Click to collapse
I am on step 5 with fastboot oem unlock-go. However, it sas "fastboot: unknown option -i"
What may be the issue?
My phone is zuk z2 pro (z2121)
ZUI 3.5.3165
Android 8.0.0
Android patchdate: 5.02.2018
usb debugging is active
oem unlock is also done
"adb devices" shows me the device. I can also change into bootlaoder using the command "adb reboot bootloader". The phone is connected via
I am stuck and the phone still has the chinese rom, I cannot seem to proceed. Thanks for any pointers.

MIUI Global 10.3.11 bootloop

Hello guys. I use to spend all night trying to get root on MIUI Global 10.3.11. I did multiple ways. My bootloader is ofcourse unlocked i using twrp 3 3 1 2 fix .
I bought K20 form CN (with china rom). Now I have above version installed in MIUI FLASH APP. Im trying to install magisk 19.3 or 19.4 but I still get bootloop and back to trwp. When I uninstalling magisk in twrp bootloops ends. I did same thing as everbody .
1. ADB Fastboot
2. Install trwp from .bat file ( tried old and new version)
3. Instal magisk via install option or sideload
4. = bootloop
Also tried to install magisk from boot.img via magisk manager,but still same bootloop (I had to flash stock rom several times even TWRP didn't worked)
I wipe before and after, nothing help.
I need this root to pay with google pay.....
I tried .Magisk work on custom rom like lineage or evolution but I preferirng MIUI. Other ppl can normally have this on my version why I can't :crying:
Can you help me guys please.

Now I installed magisk latest build without any problems but google.pay says you cant use this Phone to pay device is probably root bla bla bla.... Safenet pass. What can be now problem here?
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Guys please help I've had enough

Hello same me how to fixed step by step
First you need fastboot rom extract fastboot rom on your pc after extract find 3 file
1-boot
2-recovery
3-system
Flash with fastboot
Turn off your phone and going to fastboot
Type
Fastboot devices
Fastboot flash boot boot.img
Fastboot flash recovery recovery.img
Fastboot flash system system.img
Done device can't boot but you can install twrp China version link ?
https://www.lanzous.com/i6ahykh
after installation you can go to twrp
Download fastboot miui install from twrp
Sorry for me English

hamidezat20 said:
Hello same me how to fixed step by step
First you need fastboot rom extract fastboot rom on your pc after extract find 3 file
1-boot
2-recovery
3-system
Flash with fastboot
Turn off your phone and going to fastboot
Type
Fastboot devices
Fastboot flash boot boot.img
Fastboot flash recovery recovery.img
Fastboot flash system system.img
Done device can't boot but you can install twrp China version link
https://www.lanzous.com/i6ahykh
after installation you can go to twrp
Download fastboot miui install from twrp
Sorry for me English
Click to expand...
Click to collapse
Hello many thanks for help yesterday i found soultion.
1. Flash by xiaomimiflash to original rom.
2. Install TWRP twrp-3.3.1-2-davinci-fix
3. Wipe Data Cache Dalvik
4. Install https://forum.xda-developers.com/mi-9t/how-to/rom-miui-10-xiaomi-eu-t3942279 I choosen 10.3.12.0
5. Reboot to system
6. Back to TWRP and install magisk
7. Working