Category Archives: Mobile phones

Reset wrong SMS count on Android phone

Many users of Android phones have seen the bug that phone shows a wrong SMS count and this can not be removed regularly. Removing SMS icon, cleaning with Cleaner, turning off and on did not help. There are also some programs that should be able to remove this bug, but on many phones the wrong number of SMS is still showing on the SMS icon, and this is very, I mean VERY irritating.

Well, I came to this solution on my Samsung Galaxy S3 android phone, and it is quite simple solution.

1. Turn off the phone.

Enter recovery mode on Android phone

2. Press Home, Volume Up and Power buttons until the phone powers on, then release it.

3. With Volume Up and Volume Down buttons point to the option Wipe cache partition and push Power button.

Wipe cache partition on Android phone

This will delete all cache and temporary files, but your data, contacts and pictures will be untouched, don’t worry.

4. Now point to “Reboot the system” (or Restart the system) and that’s it – you get rid of this annoyance of wrong number of SMS on Android phone!

For other Android phones, just find out how to enter Android Recovery Mode. Usually you just push Volume Up and Power for a few seconds and release after getting Android logo on screen.

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How to take a screen shot on Android phone

Probably everyone needs from time to time to make a simple screen shot on Android phone, but it is not something obvious you can find out by yourself. And nobody reads a manuals. 🙂 So, here is a simple solution that should work on Samsung Galaxy S6 and older Android phones (Samsung Galaxy S3, Samsung Galaxy S4, Samsung Galaxy S3 – any phone that has a Home button).

At the same time press the Power and Home buttons and hold them for 1 second.

Make screenshot on Samsung Android phone

You will hear a shutter sound and see the visual confirmation that picture has been taken.

If you press a Home button just a little before Power button, it will close current screen, so you should first press Power and almost immediately press Home button.

If this does not work, try to press Power and Volume Down in the same time, for 2 seconds. If this is not working, well, you have a problem. 🙂 You can install programs from Play Store, but you have to Root your phone, and this is beyond this article.

When and how to charge Li-ion batteries

Li-ion batteryLithium-ion batteries can be found in most today’s gadgets and devices, from mobile phones to laptops. People just learned something about old Nickel-type batteries and now are using the same technique for Li-ion batteries. Well, this article will help you learn when it’s time to charge Li-ion battery and how to charge it to last as long as possible.

 

 

Charging Li-ion battery

When the Li-ion battery is brand new, it already has some charge in it, and people usually discharge it to zero, because that was the rule for old Ni-Cd or Ni-Mh batteries. Well, time’s changing, now just recharge a new Li-ion battery if it’s below 60%. There is no charge-discharge rule for this type of batteries! So, if you have a new mobile phone or laptop, just use it as you like, but try not to discharge it below 40% and don’t charge it to 100%.

Be aware that discharging Li-ion batteries to zero very often will drastically decrease it’s lifespan. Anyway, it is good to discharge battery to zero once a month, because it will recalibrate it and show more precisely it’s capacity on the mobile phone, tablet or laptop.

Here are some general rules for the best performance and durability of Lithium type batteries:

  • Do not discharge new Li-ion battery to zero at the first use, or this will shorten it’s lifespan.
  • Charge the battery when it drops below 60-80% for the best performance and durability.
  • If possible, turn off the device when it’s charging, it will charge the battery much better.
  • It’s the best to charge the battery between 60 and 80%.
  • Try not to charge the battery to 100%, as it will degrade it if you do this often.
  • Do not charge it at night – when finished charging, disconnect the charger!

Battery storage

If you don’t use the battery for a long time, charge it to 40% and leave it in a cold and dry place, at temperatures from 1 to 10°C if possible, as it will lose only 1-3 percent of its capacity in one year! At temperature up to 25°C, the battery can lose about 4-5% in the first year. If you keep it at 100% charge at 25°C, it will lose 20% capacity in just 3 months!

Conclusion

The batteries will last from 1 to 4 years, no matter how you use them, but there will be great difference in performance if you follow these suggestions. Feel free to discharge the phone to zero if you don’t have a charger, or charge it to 100% if you plan to go somewhere without charger. You can leave it charging at night if you can’t wait to disconnect the charger at 80%. Nothing will happen if you do this sometimes. Do not be a slave to the technology, use it the way you like, and little care about your devices will surely pay off in terms of it’s longer life and your budget.