Here I just want to share some tips here for anyone who is about to hand over their phone for a repair from a tech geek's experience.

1. Back up your data and erase any account information.

Back up your contacts onto your SIM card, and back up your personal files, photos, and videos onto your computer or a hard drive. Then erase all your account information especially your credit card accounts and passwords (whether they are on your browser or an app). Ignore and skip this step if you want to be one of the thousands of people who fall prey to privacy invasions and identify theft every day.

2. Remove cards.

Remove your cards, whether it’s a SIM card or a SD card. The same reason as above.

3. Put a mark.

Put a mark somewhere on your device so (that only you know of) to protect yourself from getting a swap.

4. Charge it fully or send along the charger.

Charge your device all the way, or send the charger along (unless otherwise stated) specially if your phone is experiencing battery or charging issues.

5. Check the price.

Check the price of related hardware (like an iPhone 6 screen) online to ensure you’re not getting cheated.