Problem Connecting To PC - Sony Xperia Z Ultra

Hey everyone,
Ever since updating to "14.1.B.2.257" i can't connect my Xperia Z Ultra (C6802) to my PC. i've tried a lot of things such as reinstalling the drivers, installing and activating ADB etc. But everywhere i look, it's been mentioned that a msg should prompt on my device (the RSA Authentication):
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the problem is that i've installed functioning drivers AND the PC recognizes my internal storage and SD card; the only problem is that i can't connect to third party softwares in order to backup or manage my phone via them BECAUSE there is no pop-up msg asking me to authorize the "fingerprint" of my pc :|
i'm very well frustrated having worked on this matter for about 10-12 hours :laugh: so any help would be immensely appreciated!

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That is odd. Since you didn't specifically mention it, i couldn't resist confirming: you did enable usb debugging in the developer settings?
So this did work before? How did you update to .257? I hope you get it working, i know how annoying this can be!

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Hmm, mine usually connects the second i enable USB debugging. If you're sick and tired of it and don't want to fiddle with it right now but you want to move/remove files and stuff to/from your device, i recommend AirDroid. Just open the app and your browser on you computer and you're ready to go (you have to be connected to the same WiFi as your computer).

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Change your usb connection mode to MSC Mass storage mode instead of MTP Media transfer mode. That should do it.

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lmemma16 said:
That is odd. Since you didn't specifically mention it, i couldn't resist confirming: you did enable usb debugging in the developer settings?
So this did work before? How did you update to .257? I hope you get it working, i know how annoying this can be!
Click to expand...
Click to collapse
thanks, rest assured that i'm well aware that "usb debugging" is enabled i even tried GIVING UP developer rights and then again recaliming it just as a possible solution (but nope, undoable without serious phone-hauling)
i up'ed it to .2.257 using the OTA method, i think the whole thing might be due to the fact that my device isn't rooted :/ don't ask me why cuz i'm very pissed at Sony for its lacking of such things. (.2.257 can't be rooted yet, not even with vRoot)
LordManhattan said:
Hmm, mine usually connects the second i enable USB debugging. If you're sick and tired of it and don't want to fiddle with it right now but you want to move/remove files and stuff to/from your device, i recommend AirDroid. Just open the app and your browser on you computer and you're ready to go (you have to be connected to the same WiFi as your computer).
Click to expand...
Click to collapse
Thanks Lord, as i stated i only have trouble connecting to third-party softwares such as Mobango and Moborobo (do u know if there are any such softwares better?) the rest is kinda okay, i can see my device as a connected device in My Computer etc.
SundayDuffer said:
Change your usb connection mode to MSC Mass storage mode instead of MTP Media transfer mode. That should do it.
Click to expand...
Click to collapse
Thanks for replying Sunday, but that's another odd thing: i can't seem to change the connection mode from "Internal & SD Card Connected" to anything else, cuz i did hypothesize that changing it to any other form of connection might have a chance at prompting the "RSA Fingerprint" msg :laugh: but i simply can't change it to anything else, again, might be due to the fact that my device isn't rooted

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Did you go here?
Settings/xperia Connectivity/usb connectivity/usb connection mode
---------- Post added at 06:49 AM ---------- Previous post was at 06:48 AM ----------
Did you go here?
Settings/xperia Connectivity/usb connectivity/usb connection mode