Hello there
My name is Kareem and I'm using a Sony Xperia U 4.0.4 and build number 6.1.1.B.1.10.
So the thing is that I want to update my phone to 4.4 Kitkat and I'm following this thread.
I rooted my device, and I'm now trying to unlock bootloader. My devices says that I'm able to bootload but I still need to unlock it. So I googled around and came across this video which shows me how to unlock bootloader. First I had problems with installing the drivers because I am using windows 8.1 64-bit, but after I disabled “Driver Signature Enforcement” I managed to install the drivers.
And here the problem starts... I have to press the up volume button while plugging in so I can start fastboot. As what I was told, I did and the blue led on the left side turned on. But when I look on my desktop I get a notification that my usb device is not recognized.
Can anyone tell what causes this issue? Otherwise, is there another and maybe an easier way to unlock bootloader?
Kind regards
Kareem
P.s. I'm using that flashtool software to unlock bootloader. It's called "Sony Mobile Flasher by Androxyde".
I prefer to use this.
Is the official method for unlocking the bootloader, includes the drivers and stuff, just follow that tutorial and you're good to go.
Also you have to make sure that your phone can have unlocked bootloader first, if not, then, you have to stick to locked bootloader ROM's.
Now, sorry for saying like this but Windows 8.1 is such a pain in the a**, it always gives error because the drivers isn't signed, if you get problems with that again use this.
USB not recognized, well the solutions for that problem can be:
Use other USB port, if still doesn't work on any of the ports, then can be the slots or bad placement of pins in the motherboard, almost never is a problem of internal dust in the computer but you can try these.
Try other USB cable, may be the cable is failing, try other from another Android phone to complete the process.
Try using other computer with WIndows 7 or Ubuntu.
If you were not able to get working, then tell me.
Thanks for your reply. Both links are the ones I came across too, I used the first one but not the second one. So I'm trying the 2nd link, but I'm troubling with
browse from disk and select "android_winusb.inf" from "...\android-sdk\extras\google\usb_driver" and select "android bootloader interface.
Click to expand...
Click to collapse
There is no android bootloader interface in my usb_driver folder. Do I need to get it from somewhere like the SDK manager or a website?
Kareem
Kareem_XperiaU said:
Thanks for your reply. Both links are the ones I came across too, I used the first one but not the second one. So I'm trying the 2nd link, but I'm troubling with There is no android bootloader interface in my usb_driver folder. Do I need to get it from somewhere like the SDK manager or a website?
Kareem
Click to expand...
Click to collapse
Windows key + R, write devmgmt.msc, enter.
Plug your phone and look if some device is recognized in the list, it may appear as Android or something like that, if you got it, then follow me.
Right click to it, Update driver, select from computer, use a list from the PC, and "Use disk", see if there's something that says like that because I got Windows 7 in spanish so it's different.
In that browse for the folder that has the .inf file and open it, it returns a list that you have to select the interface, next and your driver may be installed.
Understand? I can explain more but I have Windows in spanish so I don't know how is in english.
Okay.
So I got to Device Manager and when I plug my phone when going in fastboot mode it first appeared as Android but then later on it appeared as Other Device(s) and after a split seconds it goes away. That's because the fastboot doesn't last long since fastbood isn't unlocked yet (and yest bootunlocker:yes is stated on my phone when dialing a code).
Secondly to your explanation. So when I still try to update the driver I can choose to let windows find a driver a use my own software to update it. So I clicked on use my own software, chose the path where the usb_driver is located. But only the folders appear, I can't see the ini or inf. files.
Edit: I'm actually going to downgrade back to windows 7. Since I went to 8.1 it gave a lot of troubles like unsupported screen resolutions and this.
Update: I managed to borrow my sister's laptop for one time, her laptop contains windows 7. So I got on her laptop and took my usb with flash-tool on it and a kernel. I connected my phone with cable while holding the buttons to get in fastboot mode, voila it got recognized by flashtool. I'm one step closer to unlocking bootloader with only one trouble a head. So when I try to unlock my bootloader with a kernel I get an error that my phone needs to be rooted first. The thing is that my phone has been rooted already, plus I just test if it is rooted and the test said that it's rooted. What can be the problem? Not having the right kernel? Not having pc companion on that pc?
Kareem_XperiaU said:
Okay.
So I got to Device Manager and when I plug my phone when going in fastboot mode it first appeared as Android but then later on it appeared as Other Device(s) and after a split seconds it goes away. That's because the fastboot doesn't last long since fastbood isn't unlocked yet (and yest bootunlocker:yes is stated on my phone when dialing a code).
Secondly to your explanation. So when I still try to update the driver I can choose to let windows find a driver a use my own software to update it. So I clicked on use my own software, chose the path where the usb_driver is located. But only the folders appear, I can't see the ini or inf. files.
Edit: I'm actually going to downgrade back to windows 7. Since I went to 8.1 it gave a lot of troubles like unsupported screen resolutions and this.
Update: I managed to borrow my sister's laptop for one time, her laptop contains windows 7. So I got on her laptop and took my usb with flash-tool on it and a kernel. I connected my phone with cable while holding the buttons to get in fastboot mode, voila it got recognized by flashtool. I'm one step closer to unlocking bootloader with only one trouble a head. So when I try to unlock my bootloader with a kernel I get an error that my phone needs to be rooted first. The thing is that my phone has been rooted already, plus I just test if it is rooted and the test said that it's rooted. What can be the problem? Not having the right kernel? Not having pc companion on that pc?
Click to expand...
Click to collapse
Tried to unlock the bootloader with the Sony method?
manudo said:
Tried to unlock the bootloader with the Sony method?
Click to expand...
Click to collapse
Okay I'm going to try it right now, at least I want to but there are some steps very confusing for me.
Sony website said:
9. Download and unzip this file. This is the standard android_winusb.inf-file, with a few lines of code added to enable Fastboot to support Sony and Sony Ericsson devices. Make sure you are running Google USB Driver package revision 4 or higher in your Android SDK. You can see current Google USB Driver package revision in the SDK Manager.
10. Place the unzipped file in the usb_driver folder, located in the Android SDK > extras > google folder on your computer. Accept to replace the old android_winusb.inf-file with the new file. If you can't find the usb_driver folder, please install the Google USB Driver Packager using the Android SDK manager.
11. Turn off your device.
12. On your device, push and hold the Fastboot button at the same time as you connect the device to the computer with a USB-cable. The Fastboot button may differ between different device models. See the Fastboot buttons page for more information on what button use on your device.
13. On your computer, you will be asked for drivers. Point to the usb_driver folder where you placed the android_winusb.inf-file, and select the Android Boot loader Interface-file.
14. Open a command window and go to the tools folder within the Android SDK folder.
15. Enter fastboot.exe -i 0x0fce getvar version, and verify that you get a response back (for example "0.3"). This means your device is connected properly.
Click to expand...
Click to collapse
13. Well when I connect my phone in fastboot mode it doesn't ask for driver installation, it happens automatic i guess. No problem, right?
14. Do I have to do it like the screenshot?
i1362.photobucket. com/albums/r682/klaskareem/Untitled_zps296a1291.jpg (website protocol needs to be placed in front + remove space between . &com
Kind regards
Kareem_XperiaU said:
Okay I'm going to try it right now, at least I want to but there are some steps very confusing for me.
13. Well when I connect my phone in fastboot mode it doesn't ask for driver installation, it happens automatic i guess. No problem, right?
14. Do I have to do it like the screenshot?
i1362.photobucket. com/albums/r682/klaskareem/Untitled_zps296a1291.jpg (website protocol needs to be placed in front + remove space between . &com
Kind regards
Click to expand...
Click to collapse
13. If your phone is recognized in fastboot mode then continue, if not, update the driver.
14. Know the command "cd"? Is for accesing directories, you can use "dir" to see whats in the folder. Example, you downloaded the Android SDK bundle in the Desktop, then "cd" to the "tools" directory, that contains the binary to unlock the bootloader. That's in cmd.
Like:
Code:
cd /SDK/adt-bundle-blah-blah/sdk/tools
And, you're using Windows 8, again, your device is recognized in fastboot mode?
Thank you for the clear explanation, makes sense now ( already knew that cd thing, wasn't sure though).
Uhm don't mind me using windows 8 atm. I'm downloading 32-bit sdk so I can use it on my sisters laptop.
Kareem_XperiaU said:
Thank you for the clear explanation, makes sense now ( already knew that cd thing, wasn't sure though).
Uhm don't mind me using windows 8 atm. I'm downloading 32-bit sdk so I can use it on my sisters laptop.
Click to expand...
Click to collapse
Right, if anything goes wrong, feel free to ask!
By the way. Do I need to make a copy my ROM I already have? Like when something goes wrong I can still go back to my original android 4.0.4
Kareem_XperiaU said:
By the way. Do I need to make a copy my ROM I already have? Like when something goes wrong I can still go back to my original android 4.0.4
Click to expand...
Click to collapse
It's recommended to keep the stock ROM or any other ROM if anything goes wrong.
Sent from my Xperia Sola using XDA Premium 4 mobile app
manudo said:
It's recommended to keep the stock ROM or any other ROM if anything goes wrong.
Sent from my Xperia Sola using XDA Premium 4 mobile app
Click to expand...
Click to collapse
And how can I do that to be honest?
Kareem_XperiaU said:
And how can I do that to be honest?
Click to expand...
Click to collapse
In this post, there are a list with all stock and custom ROM's available in XDA forum, you should download stock and if anything goes wrong then flash the stock ROM with flashtool. You know, flashmode, select kernel, connect to green led, let it boot, and you have stock.
By now, try to unlock the bootloader, if you need help with the flashing then you can ask by here or create another thread.
Flashtool For Xperia Devices
Flashtool : It's a S1 flashing software that works for all Sony phones from X10 to Xperia Z Ultra. They all use the S1 protocol for flashing firmwares.
If you're having with Flashtool install or Fastboot ADB Driver installing issues on Windows 8.1 and Windows 8.1 (64bit), then you should take these steps to solve this.
All helpful Screenshots about this guide is here
imgur.com/a/JrQnW
Click to expand...
Click to collapse
Step 1
Download Flashtool From Flashtool Website Last Version : 0.9.15.0[/COLOR]
If links not work, dont worry they update their links.
Then Download This Windows Update
download.microsoft.com/download/2/6/4/264323EB-9942-4301-9DBD-B6FD4BB8ABA2/Windows8.1-KB2917929-x64.msu
Click to expand...
Click to collapse
Step 2
Install Windows Update
Step 3
Install Flashtool
Step 4
Then Open CMD (Run as administrator) Then Paste this code and Press Enter.
Code:
bcdedit /set testsigning on
and Then Restart your PC.
Step 5
Install Flashtool Drivers (Run as administrator) from "C:\Flashtool\drivers"
Step 6
Then Open CMD (Run as administrator) Then Paste this code and Press Enter.
Code:
bcdedit /set testsigning off
and Then Restart your PC.
if this isnt work on your pc then try also this.
Step 1
Go to Settings (Charms Bar) > Change PC Settings > Update And Recovery > Recovery > Restart Now (Advanced Startup)
it will restart to Advance Startup automatically
Step 2
In Advance Startup
Troubleshoot > Advanced Settings > Start-up Settings > Restart
Step 3
After rebooted you will get this screen. Here to choose options we have to use function keys. Now press "F7" to select "Disable Driver Signature Enforcement" .
Now your PC will boot with Disabled Driver Signature Enforcement and you will be able to install Flashtool/Fastboot drivers.
Thanks Button Please' if this thread helped you
gonna try it soon
Awesome
Thanks it works :good:
Very thanks!! it works sucessfully
i got an error code 0x80080005 after intalling windows update. i'm running windows 8.1 32 bit. any solutions?? thx be4
Thanks man - work in Windows 8.1 64 bit
thanks
thanks work great
it doesnt work, the update thing says that the update isn't for my pc and the testsigning is protected or something
SaGaR_ said:
it doesnt work, the update thing says that the update isn't for my pc and the testsigning is protected or something
Click to expand...
Click to collapse
Same problem here, can't install the update or unlock the thingy in CMD. Tried the other method too, no luck. When I try to install Flashtool drivers i always get the "DPInst.exe doesn't execute..." message, or drivers just fail to install- depending on which compatibility mode I try to run.
Any ideas?
Hello XDA,
I just got a v10 and while i'm new to the phone, I'm not new to rooting/ installing custom roms etc. But for the life of me I cant unlock to bootloader of this phone which if im not mistaken, is the only way to get root. I just installed adb on my windows 10 laptop and I'm trying to enter fastboot on my devices by plugging in the power cable and pressing the volume down and I'm greeted with a screen that says"*welcome to fastboot mode for bootloader unlock: *quick Guidance...etc" I cant exit out of this mode so I assume this is fastboot mode? It doesnt look like any fastboot mode Ive ever seen. Anyways when trying to run the fastboot oem unlock command, I am stuck on "waiting for device". I honestly dont know whats wrong with my setup but if someone could help that would be fantastic. I have tried installing the Lg united drivers and samsung drivers but they dont seem to work. Please advise if you could.
http://forum.xda-developers.com/showthread.php?t=3490604
gamin92 said:
http://forum.xda-developers.com/showthread.php?t=3490604
Click to expand...
Click to collapse
So to get it to work I have to install unbuntu software on my computer, boot into it and then install adb? I'm not getting this?
ayo234 said:
So to get it to work I have to install unbuntu software on my computer, boot into it and then install adb? I'm not getting this?
Click to expand...
Click to collapse
I looked online at some forums about this issue and I got it fixed Here what the post said
1. Connect your device while in fastboot mode.
2. open the device manager (ctrl + X on windows 10)
3. find your device "XXX ADB Device"(Mine was "Alcatel ADB Device" but it can be anything)
4. click on the arrow
5. right click on the Android Bootloader Interface
6. Click on "Properties"
7. Go to "Driver" Tab
8. Click "Uninstall"
9. Mark the "Delete the driver software for this device
10. Click OK
11. Disconnect and Reconnect your device from the cable
12. Windows device manager should show an item in the list that simply says Other devices, and will expand to "Android". Do those next steps quickly! (OR: just disconnect from the internet. Some people report it works). You have between 5-10 seconds until Windows changes it to another driver. If device manager changes the driver to "Kedacom USB device" (or something else, start over from step 8).
13. Right click and choose "Update driver software" -> Browse my computer for driver software -> Let me pick from a list...
14. Choose "Kedacom USB device" (or something else that seems logical)
15. Uncheck "Show compatible hardware"
16. Choose "Android bootloader interface version _" that is the latest (should be 28.8.2016).
17. Hopefully it will work for you
Extremely helpful and it solved my problem. Here the original thread, its post number 33
http://forum.xda-developers.com/nexus-5x/help/unlock-bootloader-fastboot-detecting-t3236946/page4
NOTE: I'm using Windows 10 64-bit on the latest update.
So for the past week I've been interested in unlocking the bootloader of my D6503 Xperia Z2 running 6.0.1 Marshmallow. I've taken all the necessary precautions to do so.
(Apparently I can't post links since this is my first post, sorry!)
Using the Sony "unlock the bootloader" page, I've been able to get into fastboot mode- however the driver for fastboot that Sony provides doesn't work (They give a link to the altered drivers in the tutorial). The "S1Boot Fastboot" comes up as not recognised on my computer. I've tried updating the driver using the device manager and pointing to the location where I have Sony's driver installed, then it says "installing" for a while before giving a warning that it was unable to install the driver because "the system cannot find the file specified". I have definitely followed every step that Sony has put on their unlock the bootloader page.
I've looked everywhere but cannot find a solution. It appears that many other Xperia users have had the same problem as me in the past but none of their solutions worked for me. So far I've tried:
Force updating the drivers
Downloading Sony's flashtool to manually install drivers, but the driver folder doesn't include the driver installer .exe file.
Manually setting the device driver to "Bootloader interface" and "Android ADB interface" in the device manager
Using the Android SDK manage to install the drivers
Downloaded third-party drivers from here by DoomLord (However there wasn't a driver available for my specifc device, the Z2)
The command "adb devices" recognises my phone when it is fully turned on, but the command "fastboot devices" never recognises my phone whether it is on or in the fastboot mode.
I'm thinking of just downloading a Linux VM and trying it on there, since apparently no extra drivers are needed, but that will mean downloading the Android SDK and Java JDK as well....
Can someone please help me out? I'm really interested in unlocking this bootloader... Thanks in advance
anaglyph said:
NOTE: I'm using Windows 10 64-bit on the latest update.
So for the past week I've been interested in unlocking the bootloader of my D6503 Xperia Z2 running 6.0.1 Marshmallow. I've taken all the necessary precautions to do so.
(Apparently I can't post links since this is my first post, sorry!)
Using the Sony "unlock the bootloader" page, I've been able to get into fastboot mode- however the driver for fastboot that Sony provides doesn't work (They give a link to the altered drivers in the tutorial). The "S1Boot Fastboot" comes up as not recognised on my computer. I've tried updating the driver using the device manager and pointing to the location where I have Sony's driver installed, then it says "installing" for a while before giving a warning that it was unable to install the driver because "the system cannot find the file specified". I have definitely followed every step that Sony has put on their unlock the bootloader page.
I've looked everywhere but cannot find a solution. It appears that many other Xperia users have had the same problem as me in the past but none of their solutions worked for me. So far I've tried:
Force updating the drivers
Downloading Sony's flashtool to manually install drivers, but the driver folder doesn't include the driver installer .exe file.
Manually setting the device driver to "Bootloader interface" and "Android ADB interface" in the device manager
Using the Android SDK manage to install the drivers
Downloaded third-party drivers from here by DoomLord (However there wasn't a driver available for my specifc device, the Z2)
The command "adb devices" recognises my phone when it is fully turned on, but the command "fastboot devices" never recognises my phone whether it is on or in the fastboot mode.
I'm thinking of just downloading a Linux VM and trying it on there, since apparently no extra drivers are needed, but that will mean downloading the Android SDK and Java JDK as well....
Can someone please help me out? I'm really interested in unlocking this bootloader... Thanks in advance
Click to expand...
Click to collapse
Download Sony AIO flashtool by androxyde and unlock bootloader with it, it reduces much effort and time you need to spend.
I am having the same exact problem. I have already tried a half dozen variants of android_winusb.inf to no avail. Either gets accepted but end up with a "cannot find the file specified" error, or simply doesn't get accepted. I am actually quite experienced with android modding (using both windows and linux) but I am on my new laptop now trying to set it up to fix my Xperia Z1 (flashed it with c6903 stock and now it has no baseband - because in reality it's a c6902) but windows10 (which I actually really like) is really giving me a hard time getting adb working!
cs982005 said:
I am having the same exact problem. I have already tried a half dozen variants of android_winusb.inf to no avail. Either gets accepted but end up with a "cannot find the file specified" error, or simply doesn't get accepted. I am actually quite experienced with android modding (using both windows and linux) but I am on my new laptop now trying to set it up to fix my Xperia Z1 (flashed it with c6903 stock and now it has no baseband - because in reality it's a c6902) but windows10 (which I actually really like) is really giving me a hard time getting adb working!
Click to expand...
Click to collapse
I also struggled with same issue trying to bootloader unlock my Xperia X F5121. I eventually succeeded in getting fastboot working on win10:
1. Download as zip: google search github androxyde flashtool (i am not allowed to post links) and extract zip.
2. Restart windows by holding shift down while clicking restart. Windows will boot into a mode where you can disable driver signature enforcement.
3. Run as administrator DPInst64.exe from the drivers folder of Flashtool. Press "install anyway" on every popup where it says drivers origin cannot be confirmed.
jotakinhan said:
I also struggled with same issue trying to bootloader unlock my Xperia X F5121. I eventually succeeded in getting fastboot working on win10:
1. Download as zip: google search github androxyde flashtool (i am not allowed to post links) and extract zip.
2. Restart windows by holding shift down while clicking restart. Windows will boot into a mode where you can disable driver signature enforcement.
3. Run as administrator DPInst64.exe from the drivers folder of Flashtool. Press "install anyway" on every popup where it says drivers origin cannot be confirmed.
Click to expand...
Click to collapse
Thankyou, Legend!
Hallo,
I´m trying to unlock the Redmi Not 4, but it´s very tricky for me. Every time I wnat to change to fastboot the mode crashes after 20 seconds restarts with a bootloop. I tried the button-method and via adb in command line.
What can I try now?
Regards!
doktorknow
Works now, I dom´t know for what reason - perhaps i´m using another usb-port (2.0 instead of 3.0) and i´m connecting the cable before pressing both buttons...
I had the same problem. Realized it was due to a bad driver installation. These are the steps:
Download ADB drivers from https://forum.xda-developers.com/showthread.php?t=2588979 or android SDK manager
Open "Computer Management" screen. if you are using windows 10, you can open windows explorer, right-click on "This PC" and click "Manage"
Now reboot your phone after attaching to PC into bootloader e..g "adb reboot bootloader"
As soon as it boots into fastboot, you'll notice on the PC Manager screen that a new android device pops up. Right-click it and choose update driver
Choose "Browse my computer for hardware"
Choose "let me pick from a list.. "
Click on Android on next screen and choose the google bootloader driver option. Install and you're ready to go
Read
doktorknow said:
Hallo,
I´m trying to unlock the Redmi Not 4, but it´s very tricky for me. Every time I wnat to change to fastboot the mode crashes after 20 seconds restarts with a bootloop. I tried the button-method and via adb in command line.
What can I try now?
Regards!
doktorknow
Click to expand...
Click to collapse
For any other person reading this and looking for solution. You just need to standby on the device manager, connect your device when it still on fastboot mode. , and when the adb device appear, right click and choose uninstall. Check the "Delete the software for this device" and click Uninstall.
hope this will help anyone, just like me has just found this solution after hours of trials and errors.
I fixed this problem with this https://forum.xda-developers.com/attachments/howto_driver-zip.2480396/
my phone is bricked and it restarts on it's own