2. Boosting Speaker Volume
Feeling bored at home and want to have some fun with your smartphone, but the sound isn't loud enough to rock out?
Try placing your phone inside a glass cup. The sound volume will definitely increase and become much clearer. This happens because glass transmits sound better through air than other materials.

3. Use Your Phone Case as a Wallet
Looking for a secret spot to stash some cash? Or perhaps you're too lazy to carry a wallet when stepping out, or worried about losing a 500,000 VND note if it's left in your pocket?
Make the most of your phone case by turning it into your personal treasure chest. That way, both your phone and money will always be within reach.

4. Use a Syringe to Clean Dust from the Charging Port
Over time, smartphones tend to collect dust around the charging port or the headphone jack, speaker area, and so on. To easily clean off this dirt without affecting the internal components of your device, you can use a syringe or a cotton swab as a substitute if a syringe isn't available.
However, it's important to handle this process with care and caution to avoid damaging your beloved device immediately.

5. Erase all the text you've just typed with a simple shake
For iPhone and iPad users, when you need to delete a long block of text you've just typed, there's no need to waste time holding down the backspace button. A quicker method available to you is the "Shake to Undo" feature, which is pre-installed to save your time.
Simply shake your phone lightly and tap the Undo button that appears, and you’ll witness the magic happen.

6. Make a call when the signal is weak
If you need to make an important call but unfortunately you're in an area with a very weak signal, how can you boost your phone's reception?
The easiest way to improve the signal is by dialing *3370# on your phone's keypad. This should significantly enhance your signal. If you want to turn it off, you can dial the number again.

7. Hide your phone number when making a call
If you want to call someone but don't want them to see your phone number, simply dial *#31# before their phone number.
This method works for any phone number. If you only want to hide your number when calling a specific person, just dial #31# followed by their number.

8. Make a mini desk lamp from an eggshell
To create a mini desk lamp from an eggshell, simply crack an egg and attach half of the eggshell to your phone’s flashlight. This lamp can help light your way through dark nights.
It's a simple and easy solution that you can implement. If the power goes out, you can use this method to provide light.

9. Use aluminum foil to create a touch screen button
If you're wearing gloves but need to use your phone to make calls or send messages, and you don’t want to take them off, simply wrap your finger in aluminum foil to be able to use your phone as usual.
This method is perfect for people living in cold climates who need to wear gloves frequently.

10. Use a battery as a substitute for a stylus
If one day your stylus unexpectedly disappears, don't worry. You can replace it with a AA battery! Just touch the negative end of the battery to the screen, and it will work like a charm.

11. Use sunglasses as a photo filter
This might sound odd, but it's actually effective if you're trying to reduce brightness in overly sunny conditions. Simply place your camera behind a pair of sunglasses, and the glare in the scene will noticeably decrease, giving you much better photo quality.

12. Stylus pen
You can create your very own magical stylus for your smartphone. Based on the principle that most smartphones with capacitive touchscreens are designed to work with touch tools.
If you happen to lose or break your stylus, don't worry. All you need is a pen and some aluminum foil, and you'll magically turn them into a stylus in no time. For those feeling a bit lazy, you can also use a small AAA battery. No need to stress, you can now enjoy gaming and scrolling through Facebook without any problem.

14. How to Rescue Your Phone if It Gets Wet
If your phone accidentally gets drenched in rain or spills water... how would you handle the situation? Don’t panic and rush to a repair shop just yet.
You can rescue your phone right at home. First, gently wipe it down with a dry cloth. Then place your smartphone in a bag or box of rice and leave it there for at least 24 hours. And just like that, you've saved your precious device!

