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Need help! C6833 757 can't connect to pc flashmode to flash FTF

OP android_myan

16th April 2014, 02:51 PM   |  #1  
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My C6833 LTE can't connect to flashmode to flash FTF.

I try with sony update service and Flashtool 0.9.15.0, all don't recognize my z ultra.

I can connect to fastboot mode by pressing volume up.

But can't connect to flashmode by pressing volume down.

Firmware version is 14.3.A.0.757

Kernel version is jackie099@ubuntu #1

Thank for any feedback.
16th April 2014, 03:03 PM   |  #2  
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Quote:
Originally Posted by android_myan

My C6833 LTE can't connect to flashmode to flash FTF.

I try with sony update service and Flashtool 0.9.15.0, all don't recognize my z ultra.

I can connect to fastboot mode by pressing volume up.

But can't connect to flashmode by pressing volume down.

Firmware version is 14.3.A.0.757

Kernel version is jackie099@ubuntu #1

Thank for any feedback.

Are you sure that your flashtool drivers are installed? Check device manager in windows.
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16th April 2014, 03:17 PM   |  #3  
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Quote:
Originally Posted by maxld

Are you sure that your flashtool drivers are installed? Check device manager in windows.

I installed Z ultra drive by using flashtool-driver. but my device manager have one unknown USB device.

Early time I used flashtool to flash FTF and also used Sony Update Service and PCC.

How can I install flash driver manually?

Thank for your reply!
16th April 2014, 03:19 PM   |  #4  
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You need a newer flash drivers.

Sent from my GT-I9001 using xda app-developers app
16th April 2014, 03:21 PM   |  #5  
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Quote:
Originally Posted by asamagorsi

You need a newer flash drivers.

Sent from my GT-I9001 using xda app-developers app

Or if you are using Windows 8 you need to reboot it in "special" mode which enables ability to install unsigned drivers.
16th April 2014, 03:29 PM   |  #6  
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Quote:
Originally Posted by maxld

Or if you are using Windows 8 you need to reboot it in "special" mode which enables ability to install unsigned drivers.

Yes.
Download newer flash drivers from chrome and install them on windows 8.
I know because I use Windows 8.


Download the file and when it finished downloading then click on the file you just downloaded and install it with install wizard if you use Windows 8

Click THANKS if I've helped you

sent by my GT-I9001 CyanogenMod 11 release 4 using Tapatalk
Last edited by Asama; 16th April 2014 at 04:20 PM.
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16th April 2014, 04:46 PM   |  #7  
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Quote:
Originally Posted by asamagorsi

You need a newer flash drivers.

Sent from my GT-I9001 using xda app-developers app

My window is window 7 64bit. Where can I get new flashtool driver?

I already install z ultra driver by using flashtool-driver from Flashtool Version 0.9.15.0 built on 15-03-2014 23:00:00.
A few time I already flash 757 ftf, but yesterday I notice my computer dont know flash mode of Z ultra.
17th April 2014, 02:29 PM   |  #8  
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Quote:
Originally Posted by android_myan

My C6833 LTE can't connect to flashmode to flash FTF.

I try with sony update service and Flashtool 0.9.15.0, all don't recognize my z ultra.

I can connect to fastboot mode by pressing volume up.

But can't connect to flashmode by pressing volume down.

Firmware version is 14.3.A.0.757

Kernel version is jackie099@ubuntu #1

Thank for any feedback.

Now OK. May be fastboot drivers are haywire after windows update. I reinstall all firstboot/flashboot drivers from flashtool. Now my Z Ultra can flash FTF.
17th April 2014, 02:59 PM   |  #9  
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Quote:
Originally Posted by android_myan

Now OK. May be fastboot drivers are haywire after windows update. I reinstall all firstboot/flashboot drivers from flashtool. Now my Z Ultra can flash FTF.

OK
Don't forget to click Thanks

please click THANKS if I've helped you!!!!!☺

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