[Q] Xperia Z3 Usb debug mode doesn't work at Windows 7 Home Premium x64 - Xperia Z3 Q&A, Help & Troubleshooting

I have an Xperia Z3 (D6603), and tried to connect at debug mode to my computer with Windows 7 Home Premium x64 and it doesn't recognize it, but without debug mode at device it does it; even the PC Companion doesn't recognize the Z3 device when is in debug mode.
I also downloaded the USB driver for the Z3 from http{:}//developer{.}sonymobile{.}com/downloads/drivers/xperia-z3-driver/ and tried to install from Device Administrator but doesn't recognize for the Z3. I installed the driver "manually" from System Symbol but when try install the Z3 still unrecognize it.
I also have an Xperia ZL, i activated the debug mode, plugged and it worked.
Please tell me what can i do to fix this, thank you very much.
Update 1: I tried install the downloaded driver without debug mode and it works, only happens with debug mode activated. I forgot mention that my device is encrypted, maybe can disturb with debug mode.

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[Q] Xperia Tipo PC connection problem via USB

I am unable to connect tipo to my pc for last few days?tried everything usb debuging checked,reinstalled pc companion,restarted my phone,nothing has worked.what to do abt this?
aka313 said:
I am unable to connect tipo to my pc for last few days?tried everything usb debuging checked,reinstalled pc companion,restarted my phone,nothing has worked.what to do abt this?
Click to expand...
Click to collapse
What storage mode are you in mtp or msc. Go to settings/xperia/USB storage mode. You should be in mtp mode
Mtp mode and usb debugging off. Pc companion seem to have issues when debugging is on. The only way to make the phone recognized on pc companion is to install universal adb installer. The original pc companion drivers not working for me. Install this, then im able to install mtp support (more downloading) then use mtp without running the pc companion soft.
Now using:
Sony Xperia tipo ST21i
stock 4.0.4
11.0.A.4.22
(rooted, locked bootloader)

[Completed] Help! Xperia C3 can't enter flashmode!

Yesterday I want update my Xperia C3 to Android 5.0.2 (use flashtool), but when I connect my device to PC, it show a "qhsusb_bulk" device connect to Windows(not SEMC Driver),and my computer auto install driver for it, then I open the falshtool, falshtool show error message for me :
##Device connected with USB debugging off
##For 2011 devices line, be sure you are not in M​​TP mode
before I connect to PC , I had open USB debug and disable MTP mode
and I already installed the flashmode driver ,flashtool still show this error message
(I was flash rom success before, but fail this time )
My PC system is windows 8.1 (I also try on win7, also fail...)
My Xperia C3 is Android 4.4.2, I can enter the fastboot mode and system (except can't enter flashmode)
anything wrong? I want to cry!!
Anyone can help me?? Thank a lot!!
SORRY FOR MY ENGLISH , I AM TAIWANESE...
Hi
Post in Xperia c3 section for better help
http://forum.xda-developers.com/sony-xperia-c/help
Good day !

[q] flashtool help

Can someone help me i am trying to root my e3 using mbc07 method but my device doesn't seem to be detected by flashtool even with usb debugging on its say phone connected with usb debugging mode off

Help!!! Flashtool error device not recognized once in flashmode???

I am using flashtool version 0.9.18.6,
Installed z3 drivers from directory flashtool/drivers.
When phone is turned on check driver shows serial no & drivers installed true
After booting in flashmode there are these errors
Use debugging is off(its on)
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I have pc companion installed,& previously used the same laptop for flashing
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