Docomo ZR update to lollipop how ?? - Sony Xperia ZR

I have Sony Docomo ZR. its jellybean now I want to update it to lollipop but gives error of docomo signal.
Can you please help me and I don't want to lose 32gb to 16gb.
Thanks

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I have rooted xperia tx and i have the latest firmware version 4.1.2 JB 9.1.B.0.411
my problem is.... my phone xperia tx s still recieving the same firmware version 9.1.B.0.411 on Update Centre..
Can anyone please help me... Thankz
I would say, if you don't experience problems, leave it there way it is. I personally haven't got that problem. But if everything works fine, leave it that way.
Sent from my LT30p, 4.1.2 stock, DooMKernel v5,root access, unlocked bootloader.
No need to write in bold or change font size.
Please refrain from doing so in every post

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Hi everybody,
i've got some troubles you may be resolve.
My friend bought me an xperia A, also known Xperia ZR in some countries, from a travel in japan. It was under android kitkat, and built-t 32 gb memory. after an update to android 5.0 there was 32gb built-in memory, but after the last update from 5.0 to 5.1.1, the remain built-in memory is only 4,58gb.
What can I do?
Thanks in advance for your help
actually sony xperia zr has 8 gb internal and user get 4.5gb for use but xperia A is japnese model of zr which got 32gb for usage , i would suggest you to flash firmware with help of flashtool rather than ota update might it help you

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Any help would be appreciated.

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