Hey guys
I just got my Z3 Dual today. I was trying to boot into flash mode and using flash tool but it didn't recognize the phone.
Now the phone isn't turning on and when I connect it to the PC, Windows just shows as a "Unknown USB Device (Device Descriptor Request Failed)".
I can't seem to make the phone respond in anyway. Flashtool doesn't list any connected devices.
Did I brick my phone?
bobpsyduck said:
Hey guys
I just got my Z3 Dual today. I was trying to boot into flash mode and using flash tool but it didn't recognize the phone.
Now the phone isn't turning on and when I connect it to the PC, Windows just shows as a "Unknown USB Device (Device Descriptor Request Failed)".
I can't seem to make the phone respond in anyway. Flashtool doesn't list any connected devices.
Did I brick my phone?
Click to expand...
Click to collapse
First thing i thought was, maybe battery is dead someone, but u must have checked that right? Anyways, If you did manage to brick ur phone, you should probably send it to Sony and claim warranty.
Related
So I purchased an Xperia Z3 on Amazon and when I received it it had italian firmware on it. I was planning on installing the stock rom with flashtools but was wondering if it was really just that easy. Are there any drawbacks to doing this? Should I just do it? Normally I wouldnt care but there are loads of carrier apps on it that I hate staring at when I'm flipping through the app drawer.
Easy mate loads of tutorials around but flashtool tells you step by step what to do anyway. Just flash a generic firmware for your model and problem solved. Only drawbacks are if you unlock the bootloader which you can't do accidently anyway. If you need to send your phone in for warranty purposes just put the Italian firmware back on it. Just make sure your battery has a decent charge before you do it
Thanks!!!! It seems so easy, I should've done it long ago.
Xperia Z3 D6603
guys i need help towards flashmode problem before i turn off my device connect it on the computer i always turn the usb debugging on but when i enter the flashmode the flashtool detected my device with usb debugging off so i cant proceed to reflashing the firmware and relocking my device.
nolihowell said:
guys i need help towards flashmode problem before i turn off my device connect it on the computer i always turn the usb debugging on but when i enter the flashmode the flashtool detected my device with usb debugging off so i cant proceed to reflashing the firmware and relocking my device.
Click to expand...
Click to collapse
Use debugging shouldn't matter in flashmode make sure the phone is.off and hold volume down while connecting the usb cable. Also make sure your drivers are installed
Have you actually tried to flash the FTF?
Jus go ahead and give it a try
Hello,
I've been trying to charge my phone through the USB cable that came with the device. It works with the charger, but once i plug it into my pc it doesnt work. When I open Sony PC Companion it doesnt recognize a device either. Now when I enable USB debugging, it works for 2 seconds and then it goes back to non functioning. What i mean by it works for 2 seconds is, the device gets recognized by sony pc companion but then gets unrecognized immediately, i get the charging icon for 2 seconds en the device says its connected to the pc via MTP. But then I can't do anything with it. In device manager it has 2 unrecognized devices: ADB interface and MTP.
What is wrong here?
bump
Try another cable if you have one.
Also install the drivers for your phone from this site.
http://developer.sonymobile.com/downloads/drivers/
Skickat från min E6653 via Tapatalk
J03llV said:
Hello,
I've been trying to charge my phone through the USB cable that came with the device. It works with the charger, but once i plug it into my pc it doesnt work. When I open Sony PC Companion it doesnt recognize a device either. Now when I enable USB debugging, it works for 2 seconds and then it goes back to non functioning. What i mean by it works for 2 seconds is, the device gets recognized by sony pc companion but then gets unrecognized immediately, i get the charging icon for 2 seconds en the device says its connected to the pc via MTP. But then I can't do anything with it. In device manager it has 2 unrecognized devices: ADB interface and MTP.
What is wrong here?
Click to expand...
Click to collapse
without recognizing charging function must work!
but test this >
uninstall PC companion > then go to drive C/Program Files and Files x86 and delete Sony and Sony Mobile folders (if exist)
then restart and Install it again.
If doesn't help
Read this carefully
http://www.howtogeek.com/195607/how...evice-to-show-up-in-file-explorer-if-it-isnt/
:good:
My problem is pc companion force closes when I connect my phone via USB to the pc
Turns out, the phone charges when it is shut down. When i turn it on it wont charge. But it wont be recognized by the pc still. In device manager it shows up as a portable MTP device but I cant do anything with it
Go to recovery and mount usb and system and then try
iv had the same, I cant connect to the PC, im on windows 10, i get USB device malfunctioned. Any update?
dlevick said:
iv had the same, I cant connect to the PC, im on windows 10, i get USB device malfunctioned. Any update?
Click to expand...
Click to collapse
Last week I found a solution, the universal adb driver from Google fixed my problem. The driver from Sony doesn't work, but this one does!
J03llV said:
Last week I found a solution, the universal adb driver from Google fixed my problem. The driver from Sony doesn't work, but this one does!
Click to expand...
Click to collapse
I got that fed up of issues with the z5 I got rid of it after 3 months
dlevick said:
I got that fed up of issues with the z5 I got rid of it after 3 months
Click to expand...
Click to collapse
Yeah I know, I rooted it now though and it feels like an whole other phone
am i the only one who suffering this problem ??
i can't imagine that the developers and the specialists all over the whole world couldn't solve this f***** problem ??
is it possible !! this little problem marked unsolvable !!
after three days of continuous search for 24 hours looking for reasonable solution ?? till now neither me nor the other people who suffering just like me found the solution .
well i'll explain the problem i hope i could find reasonable answers from those beautiful minds :
my phone is galaxy s2 plus
when i connect the device to the laptop , the laptop recognize it . OK ? just concentrate
this leads us to conclude that all drivers are installed and updated and the usb port of the laptop works properly and the usb port of the phone is working properly too also this means that usb cable is good DO YOU AGREE WITH ME ?
so PLEEEEEASE DO NOT TELL ME TO CHECK ONE OF THOSE i have already checked them
now when i try to go to to download mode i should turn off the phone as all of you know as the device turns off, a small box at the corner of laptop appears telling me that the last device you connected malfunctioned and the computer doesnt recognize it . so how should i enter the f****** download mode if the laptop doesnt recognize the f****** phone i checked the device manger there is yellow triangle (at the same site where the device had been recognized before turning off ) unknown device "device descriptor request failed".
it seems normal for you cuz you think now in the recovery mode what if i told you that i have flashed wrong cwm recovery and now i am not capable of entering recovery .
abdanoo said:
am i the only one who suffering this problem ??
i can't imagine that the developers and the specialists all over the whole world couldn't solve this f***** problem ??
is it possible !! this little problem marked unsolvable !!
after three days of continuous search for 24 hours looking for reasonable solution ?? till now neither me nor the other people who suffering just like me found the solution .
well i'll explain the problem i hope i could find reasonable answers from those beautiful minds :
my phone is galaxy s2 plus
when i connect the device to the laptop , the laptop recognize it . OK ? just concentrate
this leads us to conclude that all drivers are installed and updated and the usb port of the laptop works properly and the usb port of the phone is working properly too also this means that usb cable is good DO YOU AGREE WITH ME ?
so PLEEEEEASE DO NOT TELL ME TO CHECK ONE OF THOSE i have already checked them
now when i try to go to to download mode i should turn off the phone as all of you know as the device turns off, a small box at the corner of laptop appears telling me that the last device you connected malfunctioned and the computer doesnt recognize it . so how should i enter the f****** download mode if the laptop doesnt recognize the f****** phone i checked the device manger there is yellow triangle (at the same site where the device had been recognized before turning off ) unknown device "device descriptor request failed".
it seems normal for you cuz you think now in the recovery mode what if i told you that i have flashed wrong cwm recovery and now i am not capable of entering recovery .
Click to expand...
Click to collapse
Do you check the USB/ANDROID debugging mode is on or not?
If not ON , you turn ON it. And then try again
I experienced this with win 8 and win 10. You need to go to device manager and disable USB root hub.
Connect your device to the computer in flash mode. The computer will say “USB Device Not Recognized”.
Go to Device Manager and you will see your device listed as “Unknown USB Device (Device Descriptor Request Failed)” in “Universal Serial Bus controllers” section
Now in “Universal Serial Bus controllers” section you should also have “USB Root Hub”’s (might be several of them). Click through them and find the one that has “Unknown USB Device (Device Descriptor Request Failed)” in the “Power” tab (should be next to General).
Right click on that “USB Root Hub” and press “Disable”. Now you should have a small arrow pointing down on the USB Root Hub icon and the “Unknown USB Device (Device Descriptor Request Failed)” should have disappeared.
Click to expand...
Click to collapse
After you are done, don't forget to enable it back.
I rooted Xperia C and installed CWM with Mobile Uncle Tools. Something went terribly wrong and since then the phone is dead. I have tried possibly all the ways on the internet to connect it to my PC (Windows 10) in download mode to use either Sony Companion or wmshua to flash the stock rom but the problem is it isn't detected. All I get under device manager is a Serial Device (COM4) under Ports even though the light is still red on the phone and another thing I have noticed is that it keeps disconnecting and connecting again and again. I have tried installing various drivers, but no luck!
Can you guys please help me out?
Anyone please?? Any suggestions??
Hi everyone. I don't know what happened but when I tried to connect my S22 Ultra it won't show the File Folder. I checked the device manager on my laptop and it shows me this "Unknown USB Device (Device Descriptor Request Failed)". I tried to reinstall Samsung driver and rebooted my phone and laptop but still It wont let me connect to my phone, phone is charging though but not file transferring. Any idea?
iampatricktan said:
Hi everyone. I don't know what happened but when I tried to connect my S22 Ultra it won't show the File Folder. I checked the device manager on my laptop and it shows me this "Unknown USB Device (Device Descriptor Request Failed)". I tried to reinstall Samsung driver and rebooted my phone and laptop but still It wont let me connect to my phone, phone is charging though but not file transferring. Any idea?
Click to expand...
Click to collapse
Maybe worth looking into these possible solutions?
Fix Device Descriptor Request Failed (Unknown USB device)
In this guide, you will learn how to fix device descriptor request failed in Windows 10 using 7 different methods. Click here to get started.
softwarekeep.com
I tried everything already. I hard reset the phone via recovery mode as well no luck. So I can't flash it using Odin since it won't detect my phone. Very sad. Anyone has the same problem with mine? I'm gonna contact samsung about this and return it.