Not processing after update sw

[Nitesh3]

Dear my xp m4 aqua is not working after as update its show error( power off /use phone/got failed Ta value at start-up- 0×55 so please provide solution

[Jonas]

Hi @Nitesh3, I'm sorry to hear about your phone.

Could you please try and remove your SIM and/or SD card(s) and see if you experience the same trouble when they aren't mounted?

If the phone still won't boot up I'd recommend that you perform a software repair using Xperia Companion. This will delete all data stored on the internal storage in the phone and since you can't boot the phone and unlock you will not be able to create a backup.

Let me know how it went!