Depends on if you need to save your data or not.
- if you don't care about the data and just need to get the phone working ASAP. This will not erase contents of your internal or external storages. Just contacts, call logs, texts, apps, settings, etc.
If you want to attempt to save the data, you can give this thread a read:
Need some help, advice, something fixed? Hit me up on Hangouts @ es0tericcha0s
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