Z4 Au can't upgrade stock rom?? - Xperia Z4/Z3+ Q&A, Help & Troubleshooting

Hello everyone! I'm using sony z4au, and runs international rom z3 +, I can't upgrade to MM6.0, "system updates can not be verified"
I flash back to stock rom sony z4 but state power off ?? What should I do? sorry for bad english! Thank!

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mi version:
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(sorry for bad english im only speak spanish but i can read english)
Thnx!!!:laugh::laugh:
Here you go.
http://forum.xda-developers.com/showthread.php?t=2458411
Next time search the forum before asking

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Greetings
hi
generic MEA with full arabic support
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[Q] Getting official lolipop update 14.5.A.0.242 (using pc companion tool)

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reflash back to stock i think the only solution.
Hi, I have the Z1 c6943, I live in Argentina. Can I use this ROM? I've read it's for c6903. Thanks for the help!
mizukage said:
reflash back to stock i think the only solution.
Click to expand...
Click to collapse
Can u please help me give any link to the thread that i can flash back to stock?
http://forum.xda-developers.com/xperia-z/development/stock-rom-kitkat-4-4-4-283-ncb-pre-t2875379

Xperia Z1 Docomo (Japan) - How to upgrade firmware?

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