How to delete system files in n 70 phone c memory

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hi, i am using nokia N 70. I want to delete system files in C. When i am delete some files
after that some .dat files were not deleted in data folder.. How to remove all system files via using phone..

1 reply

Hi there,

You cannot delete those files because they are in use and needed for mobile to operate ,proceeding doing so will make mobile malfunction,rest up to you,.

Good luck