Hi, when a phone displays"error operation failed", it's due to Virus that has affected the phone media player.
You will need to format or flash the phone to restore back the media player.
First: better use kasperaskey anti virus.
If your desktop pc or laptop has antivirus,
have your pc scan your fon memory through bluetooth, or usb cable
OR:
If you have Virus On mobile
1 - remove memory card.
2 - dial *#7780# or *#7073*
3 - It format your Phone
4 - Format memory card.
and enjoyyyyyyyyyyyyyyyyyyyyyy
OR
(hubpages.com/hub/How-to-Flash-your-cell-phone)
To flash the phone.
Have a nice day.
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