Database Develop

[Q] Bootloader unlock stuck on waiting for device

I've searched and searched for a solution to this, nothing is working. Really need help guys.
Phone is on stock ICS rom, PC is Win8 Pro x64. All three files are in the folder, SDK is installed (x64 version), Google USB driver installed, Java for windows installed, and HTC Sync installed but not running.
When in FASTBOOT and USB connected it shows FASTBOOT USB. Device manager shows Android Phone - Android ADB Interface. Is this correct or should it show something else in device manager?
No matter what I've tried when running fastboot oem get_identifier_token in command prompt I get waiting for device. Also running fastboot devices returns nothing.
Don't know what else to try... Seems it doesn't recognize the device but it's in device manager.
Edit: have also tried different usb ports and I know the cable works.
Edite 2: I fixed it. Took me hours to get this working but for any one struggling like I was here is what I did.
Got rid of all the drivers and started back at Android 1.0 in device manager. Manually installed the official SDK google usb driver and selected Android Bootloader Interface for Android 1.0. Also boot the phone and manually install again and select Android ADB Interface.
Here is what really caused me problems. The HTC tutorial I looked at said to take adb.exe, fastboot.exe, and adbWinApi.dll and put them in their own folder. This absolutely does not work for me even now. I used the directory straight from the SDK (sdk\platform-tools) and added fastboot.exe from a previous sdk revision into that folder. Now everything works!!! Finally!

Hi everyone!! I have the same issue as brother bassvoykevlar but the solution here expresed is not all clear to me. Can anyone please give me a hand on this, i am really mad with it . Thanks in advance.

The Best Solution
this problem has also happened with me and i found a solution to this,
this usually happens if your system lacks fastboot drivers.
ADB drivers can only Run ADB shell so that is why you need to have fastboot drivers as well to use fastboot commands.
i think you must have tried this code:
"fastboot oem unlock"
then cmd may have got stuck on "waiting for device"
don't worry install drivers for fastboot then it should work.
google it then get it.
there is 15seconds ADB,fasdtboot installer available try that.
then give it another try.

ADB problem and no OS on device

Last night, on TWRP I formated data on the SD card, which is why I have no OS. Now looking for how to fix this on xda/google, I get into the bootloader, have fastboot usb and try to adb shell but I keep getting the "error no device found". I already installed latest drivers from HTC on to my laptop and still nothing. Any other idea?

windows 8?

First off, make sure you have HTC Sync Manager installed because that will give you the proper drivers in order to be able to use ADB commands.
Afterwards, make sure you install Java JDK and Android SDK.
Just follow this tutorial here: http://www.howtogeek.com/125769/how-to-install-and-use-abd-the-android-debug-bridge-utility/
Follow it word for word and make sure you install JDK X86 even if you have a X64 computer. And then download SDK Manager, put it in C:/ drive, open SDK Manager, and download the necessary tools (also all in the tutorial).
I was in the same position as you just before yesterday and I followed this tutorial with success.

skinsfanbdh said:
windows 8?
Click to expand...
Click to collapse
Windows 7, and mac.

Evolancer13 said:
Windows 7, and mac.
Click to expand...
Click to collapse
try downloading all in one toolkit and try that. just make sure to read the onscreen instructions as you go through the process

TarekElsakka said:
First off, make sure you have HTC Sync Manager installed because that will give you the proper drivers in order to be able to use ADB commands.
Afterwards, make sure you install Java JDK and Android SDK.
Just follow this tutorial here: http://www.howtogeek.com/125769/how-to-install-and-use-abd-the-android-debug-bridge-utility/
Follow it word for word and make sure you install JDK X86 even if you have a X64 computer. And then download SDK Manager, put it in C:/ drive, open SDK Manager, and download the necessary tools (also all in the tutorial).
I was in the same position as you just before yesterday and I followed this tutorial with success.
Click to expand...
Click to collapse
skinsfanbdh said:
try downloading all in one toolkit and try that. just make sure to read the onscreen instructions as you go through the process
Click to expand...
Click to collapse
I'll look into both things, thanks.
EDIT: even on my mac adb does not see any devices, before when I entered ./adb devices it would show "list of devices:" and it would be blank.

Good luck, man. It's fairly easy once you read the tutorial carefully and follow all the steps to the word. After it's all done and the command prompt says Sideload 100%, boot into TWRP, tap INSTALL and then scroll down to sideload.zip and that's your ROM. Also after copying the desired ROM to platform-tools in the SDK folder, rename it to rom.zip, it seems to work 100% that way while it struggles a bit with long names.

TarekElsakka said:
Good luck, man. It's fairly easy once you read the tutorial carefully and follow all the steps to the word. After it's all done and the command prompt says Sideload 100%, boot into TWRP, tap INSTALL and then scroll down to sideload.zip and that's your ROM. Also after copying the desired ROM to platform-tools in the SDK folder, rename it to rom.zip, it seems to work 100% that way while it struggles a bit with long names.
Click to expand...
Click to collapse
Still getting the error: device not found.
I even ran the all in one tool kit and attempted the "ADB sideload a ROM" follow the steps but get an error on CMD "C:\users\(username) is not recognized as an internal or external command, operable program or batch file"
I really do not understand why adb is not working, I did s-off and supercid myself maybe less than a week ago.

Are you sure you followed all the steps in the tutorial including installing JDK, using SDK Manager to download some tools and such? And are you sure you have the proper drivers installed (e.g HTC Sync Manager)? I used to get that error before I installed it. Go to Device Manager while in ADB mode in TWRP and see if the device is recognized or if there's a yellow sign beside it indicating that there are no drivers for it.

TarekElsakka said:
Are you sure you followed all the steps in the tutorial including installing JDK, using SDK Manager to download some tools and such? And are you sure you have the proper drivers installed (e.g HTC Sync Manager)? I used to get that error before I installed it. Go to Device Manager while in ADB mode in TWRP and see if the device is recognized or if there's a yellow sign beside it indicating that there are no drivers for it.
Click to expand...
Click to collapse
It came up under Android USB Devices as My HTC. When I was following the steps on the link you provided, when I tried to update the drivers with the google usb driver wouldnt work, it would say "windows had determined the driver software for your device is up to date". When I go into My HTC properties says the driver version is 2.0.7.18.

The Google USB drivers did not work for me either, only the ones provided by HTC Sync Manager did. I have not experienced that problem, mate, so I do not know what to do at this point, I am very sorry. If you are not able to fix this, I suggest getting an OTG cable and directly loading the ROM from the PC to your SD card. I ordered one a couple of days ago and it is coming tomorrow, it's very helpful

TarekElsakka said:
The Google USB drivers did not work for me either, only the ones provided by HTC Sync Manager did. I have not experienced that problem, mate, so I do not know what to do at this point, I am very sorry. If you are not able to fix this, I suggest getting an OTG cable and directly loading the ROM from the PC to your SD card. I ordered one a couple of days ago and it is coming tomorrow, it's very helpful
Click to expand...
Click to collapse
Crap, I appreciate your help though.
EDIT: nevermind googled it, gonna pick one up. Phoneless till wednesday

I am sorry to hear that, but I suppose that's the only thing you can do at the moment. Even if somehow get ADB working, do not cancel your order because OTG cables aren't only used for mounting the device, but also for things like connecting gamepads and controllers to play games on your device.

USB 3
If you have USB3 port adb.exe wan't recognize your device.
I triend first on USB3 and after on other older computer on USB2 all was fine

Evolancer13 said:
Last night, on TWRP I formated data on the SD card, which is why I have no OS. Now looking for how to fix this on xda/google, I get into the bootloader, have fastboot usb and try to adb shell but I keep getting the "error no device found". I already installed latest drivers from HTC on to my laptop and still nothing. Any other idea?
Click to expand...
Click to collapse
You can't acces to "adb shell" without OS, there is special mode in adb named "adb sideload" , not shell !
1) Check version adb by "adb version" you need version 1.0.29 or higher
2) Check TWRP version (2.3 or higher) Go to TWRP recovery -> adb sideload
3) Connect PC to phone , at PC in device manager must be MY HTC device.
4) Type jn PC adb sideload /yourpath/yourrom.zip

tash2013 said:
You can't acces to "adb shell" without OS, there is special mode in adb named "adb sideload" , not shell !
1) Check version adb by "adb version" you need version 1.0.29 or higher
2) Check TWRP version (2.3 or higher) Go to TWRP recovery -> adb sideload
3) Connect PC to phone , at PC in device manager must be MY HTC device.
4) Type jn PC adb sideload /yourpath/yourrom.zip
Click to expand...
Click to collapse
check first with "adb devices" to see does your PC recognize your HTC

tash2013 said:
You can't acces to "adb shell" without OS, there is special mode in adb named "adb sideload" , not shell !
1) Check version adb by "adb version" you need version 1.0.29 or higher
2) Check TWRP version (2.3 or higher) Go to TWRP recovery -> adb sideload
3) Connect PC to phone , at PC in device manager must be MY HTC device.
4) Type jn PC adb sideload /yourpath/yourrom.zip
Click to expand...
Click to collapse
Tash2013 YOU ARE AMAZING! Got my One back up running!

Oh man I'm so glad it's working. I thought you already knew that it is sideload not shell lol.
Sent from my HTC One using Tapatalk 4 Beta

TarekElsakka said:
Oh man I'm so glad it's working. I thought you already knew that it is sideload not shell lol.
Sent from my HTC One using Tapatalk 4 Beta
Click to expand...
Click to collapse
If I knew I would have tried lol, and it no one said anything about sideload but oh well.

Haha! Damn. I am glad it worked out, though.

[SOLVED] adb error device not found CWM-Recovery

Hi,
Current setup :
Xperia z1 C6903
Three UK
Version 4.4.4
Build 14.4.a.0.108
Rooted
Unlocked Bootloader
adb drivers installed (on xp)
Trying to install Cyanogen Mod.
Flash boot boot .img all worked fine and have CWM recovery screen up.
When I try to use either sideload or adb push I get the same error:
error: device not found
I've googled and searched here and seems to be a driver issue with adb?
I have android SDK (eclipse) and SDK platform tools installed
any thoughts please?

....

...

SOLVED adb driver problem xp device not found
OK, working using universal driver from
http://www.koushikdutta.com/post/universal-adb-driver
Absolutely no idea why XP stopped seeing the phone, and no attempt at driver/sdk updates worked, tried all the ADB drivers I could find including one above, nothing...
then changed usb post after i uninstalled the device from manager (for the 100th time) and ran the adb installer again. and tada there it was :/
hopefully link above might help someone on xp get adb connection working if they are having problems..

Cannot Get Drivers Installed for Windows 8.1 - Manual Installation or SDK

I cannot possibly figure out what the heck is causing my Windows 8.1 Installation to not detect my Nexus 6. Google comes up with TONS of results for this issue, but all troubleshooting points to what I have already done.
Plug it in, comes up as "Nexus 6" under "Other Devices" in Device Manager. With the little Yellow ! mark.
Downloaded the USB drivers from here - http://developer.android.com/sdk/win-usb.html attempted to install them and I get an error message. After selecting the folder that contains the driver.
"Windows was unable to install your Nexus 6: Windows could not find the driver software for your device. If you know the manufacturer of your device, you can visit its website and check the support section for driver software"
What I have Tried:
- Installing Drivers with USB Debugging ON and OFF
- Installing Drivers with Connection set to MTP and PTP on the phone
- Disabled Driver Signature Enforcement and attempted to install.
- Downloading Drivers a second time to ensure no corruption was in the file.
- Attempted to install via Android SDK (This appears to work per SDK software, but Device Manager shows no change, and the nexus isnt showing up in Explorer.)
- Tested Nexus on another Device. (Running Windows 7. Literally Plug and play No manual Installation needed. Worked)
I'm at total Loss here, Any other Ideas?

@morbid_bean,
Did you try the Motorola Device Manager >https://motorola-global-portal.custhelp.com/app/answers/detail/a_id/88481

Thanks for the reply. Unfortunately that seems to have done nothing

I'd go w/ uninstall all other drivers first, change cables and see what happens.

Try this:
1) Download the driver from the link in your post, and unzip the files to any location;
2) Open Device Manager on your PC and turn on the option to "Show hidden devices" from the View menu;
3) Right click on EVERY item that could potentially relate to your device (e.g., adb interface, composite interface, motorola, nexus, etc.) and uninstall, including deleting the driver.
4) With USB Debugging set to OFF, plug your device into your PC. Windows should automatically install the MTP driver and It should be recognized;
5) Now turn USB Debugging ON;
6) Go back into Device Manager, right click on your device and select "Update driver software";
7) Select "Browse my computer...", NOT "Search automatically...";
8) Click "Browse", and locate the driver you downloaded in step 1.
EDIT: I don't think you have to disable Driver Signature Enforcement, but if it gives you issues, try disabling it.

morbid_bean said:
Thanks for the reply. Unfortunately that seems to have done nothing
Click to expand...
Click to collapse
This is a long shot, but you did install the Java JDK, right?

cam30era said:
This is a long shot, but you did install the Java JDK, right?
Click to expand...
Click to collapse
You do not need the JDK to install the drivers...

efrant said:
You do not need the JDK to install the drivers...
Click to expand...
Click to collapse
I understand. OP has diagnosed his problem as drivers, but if his problem is ADB not connecting to his N6, it could be the problem. As I said, it's a long shot.

OP Here with a status update.
Continued to try some other suggestions. Such as another Cable, another USB port, reboots. Hell I seriously went as far as a whole Windows 8.1 Re-install. I had some feeling that possibility because I am rooted its causing issues; so I even went as far as taking my old Nexus 4 and reverted it to 100% stock to attempt to install the drivers and then trying the nexus 6. But I got same results.
efrant said:
Try this:
1) Download the driver from the link in your post, and unzip the files to any location;
2) Open Device Manager on your PC and turn on the option to "Show hidden devices" from the View menu;
3) Right click on EVERY item that could potentially relate to your device (e.g., adb interface, composite interface, motorola, nexus, etc.);
4) With USB Debugging set to OFF, plug your device into your PC. Windows should automatically install the MTP driver and It should be recognized;
5) Now turn USB Debugging ON;
6) Go back into Device Manager, right click on your device and select "Update driver software";
7) Select "Browse my computer...", NOT "Search automatically...";
8) Click "Browse", and locate the driver you downloaded in step 1.
EDIT: I don't think you have to disable Driver Signature Enforcement, but if it gives you issues, try disabling it.
Click to expand...
Click to collapse
When I follow these steps I was successfully able to install drivers for something called "Android Composite ADB Interface"; "MTP" or "Nexus 6" was still failing. Even after switching debugging on. I still unfortunately do not see anything in Explorer that I can access the Nexus 6's files. Maybe this is an indicator that I am getting closer?
cam30era said:
This is a long shot, but you did install the Java JDK, right?
Click to expand...
Click to collapse
When I installed Android SDK, it told me I needed JDK before proceeding with the installation. So I'm pretty sure I did this.

morbid_bean said:
When I follow these steps I was successfully able to install drivers for something called "Android Composite ADB Interface"; "MTP" or "Nexus 6" was still failing. Even after switching debugging on. I still unfortunately do not see anything in Explorer that I can access the Nexus 6's files. Maybe this is an indicator that I am getting closer?
Click to expand...
Click to collapse
I just realized that the last part on my step 3 was cut off. It should read:
3) Right click on EVERY item that could potentially relate to your device (e.g., adb interface, composite interface, motorola, nexus, etc.) and uninstall, including deleting the driver.
As far as your issue, I'm pretty sure that Windos recognizes the N6 as an MTP device (assuming you have it on MTP) without any additional drivers, so I'm not sure what the problem is. My steps were to get the ADB driver installed, which seems to have worked. (ADB allows you access to your files via command line...)
Sent from my Nexus 6 using Tapatalk

FIXED IT!
I am running a version of Windows 8.1 known as Windows 8.1 Pro N Essentially this is a slightly stripped down version and does not include "Windows Media Player or other Windows Media-related technologies, such as Windows Media Center and Windows DVD Maker" I managed to get this copy really cheap.
More Info Here
So essentially I needed to download THIS Pack/Update which gave me these special features. Including the resolution of my Driver Problem. Rebooted the computer plugged in my phone and it was detected and installed drivers automatically.
Special Credit to THIS thread for helping me with the answer. I hope this can be added to any Driver Installation Guide or Sticky to assist others that may come across this problem.

Glad you got it resolved. I've never heard of Pro N. Another wrinkle in the Windows 8.1 driver issues, it seams.

Recently I have been deving on a friends nexus 6 with 5.1.1 on it all drivers are installed properly device shows in adb i even get adb root successful but it refuses to adb remount for testing purposes even on roms that have modified boot.img's with init.d in them and ro.secure=0 set and adb persistance is also set so there is no reason for it not to mount. I imagine there could be a problem with it mounting system on boot but I am new to aosp 5.1.1 roms and this solution did not work for me it tells me the windows 8.1 version I'm running is not applicable for this update? So if anyone can lend some assistance it would be much appreciated.
The Nexus 6 is VZW unlocked bootloader and rooted twrp recovery all the latest
currently any rom i try i cant mount through adb so testing for themes is impossible?

Pneuma1985 said:
Recently I have been deving on a friends nexus 6 with 5.1.1 on it all drivers are installed properly device shows in adb i even get adb root successful but it refuses to adb remount for testing purposes even on roms that have modified boot.img's with init.d in them and ro.secure=0 set and adb persistance is also set so there is no reason for it not to mount. I imagine there could be a problem with it mounting system on boot but I am new to aosp 5.1.1 roms and this solution did not work for me it tells me the windows 8.1 version I'm running is not applicable for this update? So if anyone can lend some assistance it would be much appreciated.
The Nexus 6 is VZW unlocked bootloader and rooted twrp recovery all the latest
currently any rom i try i cant mount through adb so testing for themes is impossible?
Click to expand...
Click to collapse
Have you tried this:
http://forum.xda-developers.com/showthread.php?t=2588979

Evolution_Freak said:
Have you tried this:
http://forum.xda-developers.com/showthread.php?t=2588979
Click to expand...
Click to collapse
My question is: Why would old google universal adb drivers work when everyone else says to use the new google usb drivers in tandem with the Motorola drivers for vzw? Thats the only reason i didnt use the tool is b/c its outdated?

Pneuma1985 said:
My question is: Why would old google universal adb drivers work when everyone else says to use the new google usb drivers in tandem with the Motorola drivers for vzw? Thats the only reason i didnt use the tool is b/c its outdated?
Click to expand...
Click to collapse
But alas! It does work, I've tested it myself. Also, you can install the most recent drivers optionally.

Evolution_Freak said:
But alas! It does work, I've tested it myself. Also, you can install the most recent drivers optionally.
Click to expand...
Click to collapse
I just tested it and it does not work i still get permissions denied when i try to remount it.

Pneuma1985 said:
I just tested it and it does not work i still get permissions denied when i try to remount it.
Click to expand...
Click to collapse
I don't usually recommend toolkits but you could try this:
http://forum.xda-developers.com/showthread.php?t=2947452

Evolution_Freak said:
I don't usually recommend toolkits but you could try this:
http://forum.xda-developers.com/showthread.php?t=2947452
Click to expand...
Click to collapse
Yup that didnt work either. I get su in adbshell it shows me # so there is su i just dont get why it wont mount at all or pull or push obviously cant do that if it won't mount. And no tutorial I've followed nor solution has worked thus far. As stated above that solution worked for him with windows media center or whatever but that doesnt apply to me. I've done this hundreds of times with many many many devices on windows 7 I've even done it with 3 devices on 8.1 so far no problems this is the only one to give me issues like this.
It's always a bit of messing around with it to get it to work but this is different i have spent hours going back and forth removing all drivers installing new ones using tools etc.

Looking to go AOSP from Stock KK [4.4.4]

Sooooooooooo,
I have a Z1 [C6903] that I picked up yesterday. It came with 14.2.A.1.136 Jellybean 4.3.
I wanted to
Unlock bootloader
Install custom recovery
Root
Install any nice AOSP ROM [preferably LP-based]
I installed the Minimal ADB-Fastboot 1.4.
I also installed the Flashtool 0.9.18.2.
I also installed the Z1 device, Fastboot, and Flashmode drivers [version 1.6.2] from the driver folder. It first failed, and then I disabled driver verification then everything went smooth!
Device manager recognized the phone in MTP and Fastboot, and Flashmode modes. Drivers installed correctly I presume.
Then the challenges arrive:
adb devices returned it as "offline"
Android studio couldn't push a project to it because it was offline
fastboot devices identified it, but fastboot -i 0x0fce getvar version returned an error [getvar:version FAILED (command write failed (Unknown error))]
Things I've tried to do to rectify the connectivity issue:
I'm using a SurfacePro 4 so I can't switch USB ports [only have one].
I've tried different cables - they yield the same result.
I've enabled and disabled USB debugging, revoked access, unplugged and replugged, rebooted, etc. Still no change in result.
Since the device had some OTA updates pending, I ran those and now i'm on 4.4.4 with 14.4.A.0.157, with some other updates currently waiting for me to accept so they can download. I've decided to post here for help and won't run those updates unless it increases my profit
PS: Even after the updates, adb and fastboot still are unchanged in their results.
Help please
Update:
It was a freaking USB cable. I had tried two of them. None had worked.
I finally unleashed my Anker USB cable and Boom! We good to go!!!
Thanks all!:highfive::highfive::highfive::highfive:

Make sure to enable USB debugging in Developer Options at the bottom of the Settings app

tomascus said:
Make sure to enable USB debugging in Developer Options at the bottom of the Settings app
Click to expand...
Click to collapse
Did this and more. Still to no avail.
The phone shows up in the computer, it just doesn't show as online when I run the adb devices command.
That's what I need help with.
Thanks

ahh have you tried using
Code:
adb kill-server
adb start-server
and trying again?
What should happen is the authorisation window pops up on your phone

tomascus said:
ahh have you tried using
Code:
adb kill-server
adb start-server
and trying again?
What should happen is the authorisation window pops up on your phone
Click to expand...
Click to collapse
Excellent! I did that, too. even manually closed and restarted adb.exe to no avail.
The thing is, my Z1 DOES NOT show me the authorization pop-up! Ever!
I've done this a million times on other phones, and I know the procedure. It's just that this Z1 is not showing the authorization popup
Thoughts?

boydee said:
Excellent! I did that, too. even manually closed and restarted adb.exe to no avail.
The thing is, my Z1 DOES NOT show me the authorization pop-up! Ever!
I've done this a million times on other phones, and I know the procedure. It's just that this Z1 is not showing the authorization popup
Thoughts?
Click to expand...
Click to collapse
Find a quiet corner and cry
Tried running adb as admin?

tomascus said:
Find a quiet corner and cry
Tried running adb as admin?
Click to expand...
Click to collapse
Tried this, too!
No change, anywhere.
I actually went ahead and tried adb on another PC with minimal adb-fastboot and adb drivers installed, and it returned the same "offline" response
Whoa!:angel:

@boydee
this could work with you
i assume that you rooted your phone you will do that:
1. open your favorite file explorer(suggest: ES File Manger)
2.go to /data/misc/adb/
3.delete "adb_keys" file
4.enable usb debugging
5.reinstall your drivers
6.open command and kill adb server(adb kill-server)
7.connect your device and run command (adb devices)
8.look at your device you will find text box telling you a new pc check always trust bla bla and click trust or something like that
9.you will see something like that
http://imgur.com/ReQtofb

How to upgrade to kitkat 4.4.4 India version of c6903 Sony Xperia Z1 pls help

DectonX said:
@boydee
this could work with you
i assume that you rooted your phone you will do that:
1. open your favorite file explorer(suggest: ES File Manger)
2.go to /data/misc/adb/
3.delete "adb_keys" file
4.enable usb debugging
5.reinstall your drivers
6.open command and kill adb server(adb kill-server)
7.connect your device and run command (adb devices)
8.look at your device you will find text box telling you a new pc check always trust bla bla and click trust or something like that
9.you will see something like that
http://imgur.com/ReQtofb
Click to expand...
Click to collapse
Hey, thanks for the advice!!
Finally got root [without use of PC] and when I open the /data/misc/adb/, the folder is EMPTY
A little confused there.
I did the same procedure for the PC [deleting from C:/Users/boydee/.android/] but it also was to no avail.

k9rockstar said:
How to upgrade to kitkat 4.4.4 India version of c6903 Sony Xperia Z1 pls help
Click to expand...
Click to collapse
Hey there! Please check here for a firmware file that works for you.
When you've downloaded, use the Flashtool to flash it to your phone.
If you want help flashing it to your phone, check this thread out.
Hope that helps

boydee said:
Hey, thanks for the advice!!
Finally got root [without use of PC] and when I open the /data/misc/adb/, the folder is EMPTY
A little confused there.
I did the same procedure for the PC [deleting from C:/Users/boydee/.android/] but it also was to no avail.
Click to expand...
Click to collapse
This could problem with installing drivers as PC don't detect adb in debugging mode
So disable driver verification again and install drivers from flashtool remember to check
1. Fastboot drivers
2. Flashmode drivers
3. Xperia Z1 drivers
And restart
If the problem not fixed try adb universal drivers just Google it
I was have same problem with win 8.1 but I didn't all that I just installed win 7 and do it
Remember to backup ta before unlock to backup your DRM keys