Return key not working--Jellybean 4.2.2

[GM20]

Hi

I have updated my phone to Jellybean 4.2.2. After that, my return key is not working. Due to this, I am facing a lot of problem especially writing mails. Please fix it ASAP. 

Thanks.

[Uliwooly]

Repair your phone 

Update Service (SUS)

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Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355