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Xperia System Update (Oreo 8.0) could not install

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Message 1 of 1

Xperia System Update (Oreo 8.0) could not install

Dear Sir,

The issue is that I have been facing difficulty to install the Xperia System Update (Oreo 8.0). I am using Sony Xperia XA1 Ultra (G3226). The thing is that I download the new version, then press install. After restarting 2/3 times, it shows a screen where it says 'couldn't install new software version. Please try again'. I have tried Laptop/PC companion also. See if you can find a solution for this issue.
Thank you
Fayazul Islam