SE firmwarf update fails to detect phone while pressing C key.

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Posted by Dexobox
Hi I own a w950i.
I recently forgot my unlock code and used Xs++ to get the unlock code .
I dont know much about operating the xsplu-plu software but i loaded a gdfs file or something.
(I think the firmware got replaced)
I would now like to update my cell with the latest firmware but it cannot be done because of above problem.
any ideas to update firmware pls other than using xsplu-plu or any other hacking software.