A10 

Specifications

Display

15.79cm (6.2") HD+ Infinity-V

Camera

Rear
13MP(F1.8)/2MP Dual Camera
Front
8MP (F2.0)

Memory

3GB | 32GB
2GB | 32GB
Expandable up to 512GB

Battery

4,000mAh
Processor
MT6762 Octa Core

OS

Android Pie
Samsung One UI

A20


Specifications

Display

16.20cm (6.4") HD+
Super AMOLED Infinity-V Display

Camera

Rear
13MP (F1.9)+5MP (F2.2)
Front
8MP (F2.0)

Memory

3GB | 32GB
Expandable up to 512GB

Battery

4,000mAh
15W Fast charging
USB Type C

Processor

Exynos 7884
Octa-Core

OS

Android Pie
Samsung One UI

A30


Specifications

Display

16.21cm (6.4") FHD+
Super AMOLED Infinity-U

Camera

Rear
16MP (F1.7) + 5MP (F2.2)
Front
16MP (F2.0)

Battery

4,000mAh
15W Fast Charging
USB Type C

Memory

4GB | 64GB
Expandable up to 512GB

Processor

Exynos 7904
Octa-Core

OS

Android Pie
Samsung One UI

A50

Specifications

Display

16.21cm (6.4") FHD+
Super AMOLED Infinity-U

Camera

Rear
25MP (F1.7) 8MP (F2.2) 5MP (F2.2)

Front
25MP (F2.0)

Battery

4,000mAh
15W Fast Charging
USB Type C

Memory

4GB | 64GB & 6GB | 64GB
Expandable up to 512GB

Processor

Exynos 9610
Octa-Core

OS

Android Pie
Samsung One UI

A70

  
Specifications

Display

17.03cm (6.7”) FHD+ (1080x2400)
Super AMOLED Infinity-U Display

Camera

Rear
32MP (F1.7) + 8MP (F2.2) + 5MP (F2.2)
Front
32MP (F2.0)

Memory

6GB | 128GB
Expandable up to 512GB

Battery

4,500mAh
25W Super Fast charging
USB Type C

Processor

Snapdragon 675
Octa-Core

OS

Android Pie
Samsung One UI

A80

  
Specifications

Display

17.03cm (6.7") FHD+ (1080 x 2400)
Super AMOLED New Infinity Display
On-screen fingerprint

Rotating Camera

Rear & front
48MP(F2.0) + 8MP + TOF Camera

 Memory

8GB | 128GB

Battery

3,700mAh
25W Super Fast Charging
USB Type C

Processor

Snapdragon 730G
Octa-Core

OS

Android Pie
Samsung One

General hardware components:
Cpu fan - to help with keeping the laptop cooler
heat sink/heat pipe - made for the laptop so it doesn't overheat allowing air circulation in a compressed space
CPU socket- allowing you to insert the CPU ( core processor unit) in it
CPU- core processor unit - carries out the instruction of the programs. ( the core)
hard drive- Storing data persistently
CMOS battery- battery in motherboard used for things like the bios
Wireless card- adding wireless options to a laptop
Speakers - with it's obvious purpose is to create sound and are attached to the motherboard
Ram- " computer memory that can be accessed randomly" is how you would describe it
Battery- the main power source for a laptop. ( make sure to have it in for the laptop to power up before all else)
Problem 1: Laptop Overheating Issue
Major Causes
Malfunctioning Of Fan
Directly placing laptops on rough surfaces 
Overheating is a very common problem with laptops. Laptops have a more compact air venting system. so air circulation is harder. The purpose of a heat pipe is to fix this issue of overheating. But since there is such little space more dust is able to block the air venting circulation. This can then cause the fan to overheat if clogged with a lot of dust. To remove this use a q-tip and carefully remove it from the silver area or any other parts.
Problem 2: Slow Hard Drive
Slow hard drive can be very annoying it causes lagging and your computer to process information at a slower pace. One of the solution to this Is called defragmenting it is basically a form of organization on your computer or laptop fitting the pieces together. It places all the parts of a file together on the hard drive. It does this based on information of how the user uses their computer and where they go. Its also important to make sure your hard drive is in good condition at all times and before this process. First make sure to start this process by going to the control panel and choosing system and security with the pie and shield sign. Then you should see administrative tools which is at the very bottom next to the silver gear sign. Underneath in the small blue letters make sure to click on defragment your hard drive which will then lead you to what will give you a solution to your issue. when then be able to click analyze disk when the progress is complete. Then click defragment disk this will help not only assure you of better speed and will even help you having a faster startup time when it is defragmented completely.
Step 3:  No Image Issue
Another example of an issue your laptop can have is your laptop showing no image. This is a very common problem with laptops and computers when powering it on the screen is completely black or shows no image. If this occurs always check if it is completely powered on. Meaning the fan is spinning also check the LEDS. As you can see above the LEDS are glowing and the fan is functioning so It would have to be another issue. To make sure check your other hardware. Usually if your screen has no image the reason is ram. Use your Philips screwdriver to remove the nails and take off the covering. Then you should see the ram built on the motherboard close to the wireless card. It depends on the computer you have and its specifications but usually people have two sticks of ram. To solve this issue of no image make sure to replace the ram or make sure nothing is in the way of it. Or even take it out and put it back in.

It's a common thing to run out of storage for all smart phone users, even when you have a very large memory space,apps, photos, videos, and mysterious "Misc" data can hog up all the storage on your device, preventing you from installing more apps or taking more pictures.

What's Taking up All Your Space?

Getting notifications of your device running out of space is not the end of the road for you, it's a common experience with the average smartphone users. (If it makes you feel any better, it happens to iPhone users too.) Over time, hard drive space slowly but surely gets eaten up not just by the apps you install , but by the cached data those apps store on your phone.
To see how your storage is being used up, go to Settings then Storage on your device. From there, you'll be able to see how much available space is left on your internal, built-in storage.

Clear App Cache Data

Due to the advancement of Android version clearing of cache has become alot quicker and easier . Before Android 4.2, you had to go through each app individually to clear cached data, but now you can clear cached data for all apps simply by going to Settings and tapping Cached data, and tapping OK. This action erases saved preferences and history like places you've recently searched for in the Google Maps app, but it can not only free up space, it can also boost your apps' performance.

Delete Unwanted Photos and Videos

The highest consumer of space in smartphones happens to be Photos and video,Because of this, it makes sense to tackle these big files continuously,If you're automatically backing

    All Android phone users access to storing up their contacts on google,This feature can automatically be done based on default settings,all your contacts, app data, call history, and more is been back up to Google Drive.Some users may not have this turned on automatically based on one or more reasons, To turn this service on in other to manually synch your contacts or export them into a separate file, then upload them to Google yourself by following this procedures.

• Enter your smartphone's Settings.

• Tap Accounts.

If you have more than one account, tap the one you want to update. 

• Tap Account sync > More (the three vertical dots) > Sync now.

Note: Manually syncing refreshes your account data for all Google apps, including ones that have auto-sync turned off.

Steps To Backup Contacts on Android By Exporting 

For users who wish to switch phones soon, you can take the contacts stored on your device's hard drive or SIM card and export them into a .vcf file. This will let you import those contacts to a new phone easily.

Open the Contacts app on your Android phone.

• Tap Menu 
• Settings 
• Export.

If you have multiple accounts, choose which one you want to export contacts from.
Tap Save to download the .vcf file.


Immediately saving this contact,  you'll need to store it in a safe place, either on removable  storage like a SIM,flash drive or memory card, or in the cloud via services like Google Drive or Gmail.

Over Heating

Your computer overheats for many reasons, and several of them have to do with improper computer maintenance. If, for example, your system has very old components, it is very common that it increases its temperature. If your internal fans are damaged or dirty, they will not be able to refrigerate, as they should,also were you keep your computer also matters as this is one of the major reason why a system may over heat and perform slowly.


Malwares

Malwares includes  viruses, trojans,  and ransomware.  They Come indifferent form and enter into our personal computer through various method such as files we transfer from our friends,inputing corrupt flash drive and downloading corrupt files from the internet etc. the terrible thing about this malware is that they secretly damage you computer.
Malware can cause very serious problems, such as disabling your system or stealing sensitive data, making your device very slow and so on. Facing this case of virus may involve various steps which would be discussed in our other post.

How To Keep Your Laptop New

Hard drive gets full

Using up your storage space till its gets fully occupied leaves your personal computer at great risk.
As times goes by, and if good computer maintenance is not carried out, it is usual for a computer’s hard drive to be filled with all kinds of programs and files until it reaches its limit. When this happens, both the initialization of the system and other tasks may be slowed down. Also, as there is no disk space, you may have problems when installing programs or updates that are truly necessary. Now, you get why it was not a good idea to save all those puppy videos on the hard drive of the office computer.

RAM Failure

Depending on your RAM size, The number of programs you open at a time should be placed on watch.Can you imagine yourself carrying a huge sack full of stones on your back? Well that’s the RAM of your computer right now. No matter how good a computer is and how much RAM it has, if it does not have proper maintenance it will end up accumulating more and more programs, many of them are unnecessary, and it will end up making the RAM work harder (which, among other things, will mean a great slowdown in your system).

Outdated Operating System 

Yes, we already know that you are very fond of MS-DOS, because it was the operating system of your first computer, in which you played Monkey Island while your mother cooked dinner, but that is no reason to keep using it 35 years later on the computers in your office!

The updates of the operating systems are important to get the computer working properly, as well as the migrations to more modern operating systems, as soon as the one we are using becomes obsolete.

Also read : Effective way to make your laptop perform fast

Most times forgetting password or phone pattern may occur as a result of various reasons.To unlock the pin, pattern, password, fingerprint, or any other kind of lock on an Android device, then simply take the assistance of Dr fone (Android) .This method It is a highly useful,trusted and advanced application that can let you move past the lock screen on your device without causing any harm to it or lossing your content. To learn how to unlock pattern lock using dr.fone, follow this procedure.
Step 1



After downloading dr.fone Install  and launch it to perform pattern unlock. From the home screen, select “Unlock” option

Step 2


Connect your device to the system Using a USB cord.  Immediately the device is detected, click on the “Unlock Android Screen” button.
Step 3

Set your device nto its Download Mode. Turn it off and long press the Home, Power, and the Volume Down key at the same time. Afterward, press the Volume Up key to enter the Download Mode on your PC.

Step 4
Immediately your device will enter the Download mode,The application will automatically detect It.
Step 5

After waiting a few minute, it will start downloading the recovery package and perform the needed steps to unlock your device.
Step 6

Immediately your the operation is completed,you will get a notification.Then Simply disconnect your device and access it without any pattern lock

Also Read:Do this Immediately Your Phone falls into liquid

WhatsApp is one of the most popular and best chat app over the years, this social media app is used by most users in the world today. However it's easy to use characteristics and less data consumption ability make it more popular and favoured by various circles of smartphone users.
Also known, what ever has an advantage also has its drawbacks, however due to the high usage of whatsApp hackers has developed various ways to spread malicious viruses through this highly rated app which some of this ways will be highlighted in this post.


How Virus Enters Your Phone Through  Whatsapp

1. WhatsApp Gold

The difference between Whatsapp and Whatsapp Gold is very clear. Their are a few things you can do with Whatsapp Gold which you may not be able to perform  with the normal whatsapp,this is because over time the regular whatsapp developers has observed various lapses and wrong practices by users, Putting  restrictions to this shortcomings has given the developers of Whatsapp Gold access to gain attention of some users.

WhatsApp Gold has a dangerous virus in it. WhatsApp Gold invites users and says that this app is only used by celebrities and has some features that can not be found in the regular WhatsApp.
But you have to be careful with that invitation. Because when a user is stuck and access the link provided, then that’s when the smartphone will be exposed to malware that can even steal personal data users.

2. WhatsApp Video Calling

Being conscious of how virus enters your phone through messages may not get you convered, Also WhatsApp Video Calling feature can be used by hackers to spread malware that can steal data and contact users.
With this feature, hackers are spreading fake messages that invite them to try out the new WhatsApp service along with attaching download links to those features.
The feature will actually bring up a page like an online survey that asks users to fill in their personal data. This is where the theft of personal data users begin.

3. New Color for WhatsApp

This is another malware which is usually distributed to the users of WhatsApp and offers a new color feature not only this you may also be given a  task to perform.To enable the feature, users are required to resend the received message to 10 contacts or 5 WhatsApp groups.
This is one of the best the best ways for hackers to perform their jobs, Because after that, the smartphone will automatically installed various applications along with fake notifications that leaves the smartphone in danger.
After that, the smartphone users will be filled with various ads that will benefit hackers.

4. Organization Message

Every  regular whatsapp user receives a chain message in WhatsApp accompanied by an invitation to open a particular link. If this happens, then you should ignore it or even delete it.
Links that can be spread salsa is a malware that can steal user information data stored in the smartphone.
In general, this malware has forms like Microsoft Excel format, Microsoft Word, or PDF.

5. Skygofree

Skygofree is a malicious malware that if it has entered into the smartphone, it will be able to hack and peek at WhatsApp messages and take photos using a smartphone camera unnoticed by its users.
In addition, this malware is also able to track audio recordings and track location, and look into the user’s browser history, so it could just break the password or other important things. Skygofree is certainly very dangerous, especially for users who access internet banking through the browser. StudioPress where themes can be downloaded easily.
Well, that’s a dangerous malware virus that can be propagated through WhatsApp short message app. For that, we must be more careful again to not arbitrarily open the dangerous link spread WhatsApp or other chat-palatal application.

Excessive data consumption is a common thing for those who use their personal computer online. Must times this situation seems unstoppable and frustrating which makes users opt-out of such options.the step which we will share in this post will go a long way in reducing data consumption if followed as explained.

Check Out Affordable MACBOOK Laptops

1. Set your Wi-Fi Network as a Metered Connection.

This setting gives your device the permission to recognize the network as a connection that has a cap or a limit, and as such, it will stop apps and other processes from using data in the background. Applying the network metered connection, enable your PC to disable automatic Windows update, app updates and live tile updates too.


To set your internet connection as metered,go to settings and locate Network & Internet option , find your connection name in Wi-Fi and then select Advanced Options.




2. Analysis  the Data Usage of Individual Apps

The Windows 10 Operating system has a data usage tool in the settings that allows you to view the amount of data that the apps on your PC are consuming. With this information you will be able control the data consumption of the apps when you are using a metered network connection.



3. Disable Automatic Updates for Apps and Live Tiles

Most Windows apps and live tiles update in the background. This operation takes place without your knowledge, most times when you are busy playing online games or downloading other things. To save data, you need to check out the settings in the windows store app and disable automatic updates for apps and for live tiles.



4. Disable Peer to Peer Windows Update Sharing

Having peer to peer updates enabled on your PC, means that you’ll be able to share your windows update file with other PCs on your local network after you have downloaded it. If you are using a metered connection or a slow one, you need to disable this feature so your PC doesn’t upload updates to other devices that may be on the network.

Things To Consider When Purchasing A New Laptop

5. Use a Data Efficient Web Browser

There’s a chance that bulk of your data is spent on web browser usage. Some browsers come with data saving features like compressing web pages or not playing unnecessary flash content. Google Chrome has a data saver extension, and the Opera browser has a turbo mode that saves data while you are surfing.


Also, you can change some settings like switching off images, pop-ups and disabling your browser from automatically playing flash content. You can also go ahead to use the mobile version of the website instead of the full desktop version.


You should also checkmate how much stuff you stream or download on the internet when you are on a metered network.

Also Read : Ways To Make Your Laptop New

Maintaining earphones to last long is not just as easy as it sounds, most smartphone users complain bitterly about their earphones not lasting long as they wish even when they try to carefully handle it. Let's answer this question; What's the longest period your earpiece last you? And how did you manage to make it last long to that extent?
Generally the quality or price of the earphones you opt in for really have a longer way to go when it comes to earphone maintaince.


Most cheap earphones products do not have a long lasting capability, They either stop working,or you have the sounding awful thereby announcing their end.
Now, after you have purchased a good quality earphone let's look at some practices to make them last longer.
Parts of an Earphone
A: Connectors, B: Nozzle, C: Detached Cable

1. Keep Them Properly
Proper storage of your earphones is your first line of defense. That's why most quality earphones come with a storage case or pouch. Rather than wrapping the cable around your device or bunching it up, disconnect the earphones from your device and coil it using either the "over-over" or "over-under" method. After the cable is coiled properly, place your earphones and cable in their pouch or case. Many earphone problems are the result of a cable failure caused by stretching or tearing which results to one or both part of an earphone failure.

2. Keep the Earphones and Cable Clean
Just like the way you keep your car clean by regular cleaning, that the same approach to taking care of your earphone.Take a paper towel and wipe down the cable and connector jack after each use in those situations. At home, try mixing in Dawn® brand detergent in warm water and lightly wipe down the cable to remove oils that have collected on it from your skin.

 3. Use the Cleaning Tool
Your ears produce earwax to moisturize your ear canals, fight off infection and help keep dust, dirt, and other debris from getting deep inside your ear. In other words, earwax might be gross but it's a good thing! Earwax build-up is often the cause of poor earphone performance. Remove the sleeves from your earphones and use the provided cleaning tool to clear earwax from the nozzle.


One other suggestion – keep your ears clean, but don't try removing what may feel like excessive earwax with a cotton swab. An occluded ear canal is a 30-second task for a medical professional.

4. Check Connections
Make sure the connectors between the earphones and the earphone cable are clean. Many higher-end earphones have detachable cables. If yours do, remove the earphones from the cable and make sure there isn't any moisture or debris buildup. A cotton swab is usually all that's required, but using some DeoxIT® D100L-CPK cleaner on the end of the cotton swab can also help protect those connections. When you reconnect them, don't forget to match up the R and L markings on the earphones and cable properly!

 5. Keep Them Dry
If your earphones have been in use while you've exercised, gigged or been caught in the rain, dry them off with a towel and place them in a container with a desiccant (moisture absorber) packet in it for about 48 hours. Silica gel packets, if you have any on hand, can be reused if they're allowed to dry between uses. And if you don't want to invest in purchasing a few packets, rice is a handy substitute. Do not put your earphones in the microwave!

6. Replace the Sleeves
Earphones are designed to last for many years, but foam, rubber or silicone sleeves will still degrade over time. This may result in the loss of the earphones' ability to block ambient noise that will end up diminishing the overall sound quality. Audiophiles may choose to replace theirs on a regular basis, but you may want to put this on your own periodic earphones maintenance checklist. Replacement sleeves can be ordered from most manufacturers of high quality earphones. It's always a good idea to keep a few spares on hand.

Samsung Galaxy S10 5G

Samsung's first flagship 5G mobile phone, the Galaxy S10 5G, is powered by the Qualcomm Snapdragon X50 5G NR modem and has a 6.7-inch QHD+ Curved Dynamic AMOLED display.

It's equipped with a 4500mAh battery with wireless charging, 8 GB of RAM, and 512 GB internal storage.

The S10 5G phone has a 3D Depth camera for augmented reality and Live Video Focus. There are four rear cameras (two 12MP, 16MP, and TOF) and two front-facing cameras (10MP and TOF).

Release date: The Samsung Galaxy S10 5G launched through Korean carriers on April 5, Verizon May 16, Deutsche Telekom July 3, EE and Vodafone on June 7, Swisscom in July, and is coming to AT&T, Spectrum Mobile, Sprint, T-Mobile, Xfinity Mobile in the summer or spring of 2019; O2 August 8; and Telstra.

Price: $1,300 USD

Samsung Galaxy Fold


Samsung will also release two Galaxy Fold phones: one for 4G LTE networks and one made specifically for 5G.

As the name would suggest, this phone has two displays. The front screen is a 4.6-inch HD+ Super AMOLED display, while the unfolded, larger screen, is a 7.3-inch QXGA+ Dynamic AMOLED display.

The camera on the cover of the device is 10MP. There are also dual front-facing cameras (10MP and 8MP) and a triple-camera setup on the back when the phone is unfolded (12MP telephoto, 12MP wide-angle, and 16MP ultra-wide).

Here are some other details on this Samsung 5G phone: 4380mAh battery, wireless charging, 12 GB of RAM, and 512 GB of storage with no microSD slot.


Price: $2,000 USD

ZTE Axon 10 pro


The newest member of the ZTE Axon smartphone series is the 10 Pro 5G. It's powered by the Snapdragon 855 processor and X50 5G modem, and works on not only 5G networks but also 4G, 3G, and 2G networks.

The Axon 10 Pro has a revolutionary slot antenna and adjustable antenna design to automatically know how you're using it to give you the best signal possible, while at the same time minimizing any potential damage due to electromagnetic radiation.

The ZTE 5G phone includes a triple-camera setup on the back, a 20MP front-facing camera, an in-display fingerprint sensor, and an AI performance engine to help with multitasking, motion capture, portrait lighting adjustments, and scene recognition.

This 5G phone has a 6.47-inch AMOLED display, 128-256 GB of internal storage, 6-8 GB of RAM, a 4000mAh battery with wireless charging, and a 48MP rear camera with a 20MP front-facing camera.

Release date: ZTE's 5G phone launched in China on May 6, is available in the UAE through Etisalat, and is expected to be available through carriers like China Unicom, Elisa, and Hutchison Drei Austria

Price: From around $470 USD up to $620 USD

Huawei Mate 20 X 5G


Mate 20 X 5G is another 5G phone from Huawei that's an upgraded version of the Huawei Mate 20 X, only with 5G capabilities. Unlike Huawei's foldable 5G phone, this one has a regular screen, so it's not quite as expensive.

The Mate 20 X 5G phone has a 7.2-inch display, 4200mAh battery, triple camera setup on the back, and uses the Huawei Balong 5000 7nm 5G chipset.

Release date: Launched in Switzerland May 2019 through Sunrise; available in Qatar and Italy via Vodafone, and the UK through Sky Mobile and Three; coming to China August 16

Price: Around $1,000 USD

Xiaomi  MI Mix 3 5G



Mi MIX 3 5G is Xiaomi's first 5G phone. It's a variation of the Mi MIX 3 released in late 2018, but powered by the Snapdragon 855 Mobile Platform and X50 5G modem to achieve gigabit download speeds.

This phone uses the same 12MP AI dual camera from the Mi MIX 3, so it also has the same 960 fps slow-mo video. The front-facing camera on the Mi MIX 3 5G is 24MP and uses Sony's IMX576 sensor to help create detailed shots.

The Mi MIX 3 5G has a 6.39-inch, 2340x1080 resolution, FHD+ Samsung AMOLED display rested in a curved ceramic casing.

There's also a 3800mAh battery, dedicated Google Assistant button, and hybrid cooling system in the Mi MIX 3 5G.

Release date: This 5G smartphone from Xiaomi launched through Sunrise May 2, is available in Italy, works on Vodafone UK, is coming to the UK's O2 in August, and will most likely also launch from Three and other service providers

Price: $700–$850 USD

           Today, smartphones have gone to an advanced extent than ever. A new technology will be introduced someday and it will be there in smartphones sooner than our thoughts. The phones which we are using nowadays packs features like fingerprint screen lock, front and rear-facing cameras, dual-cameras, IR blaster, heart rate monitors, and what not.


       But users learn to stay within the circle of browsering, making  of phone calls and all other routine as know, Still, there are a few things they probably don't know their phone could do for them. Their are series of code packed up by manufacturer which users are not aware of. Let's have a quick look of some this codes.

Code 1
   *#*#4636#*#*
This amazing  code displays Three informations about Your  Phone,With this code you can check your Informations, your Battery Information and also App Usage statistics

Code 2
      *#*#7780#*#*
           I wouldn't try this, because am not ready to lose my apps,  This  code can be used to reset your phone to factory state-Only,deletes application data and applications

Code 3
      *2767*3855#
          This code completly wipes off data in your smartphone also it reinstalls the phones firmware.you may only  try this when your phone  gives you software problem.

Code 4
       *#*#34971539#*#*
            Lady's, this is certainly  for you, because  this code displays complete information about the camera of whatever android device that's in your hands. Hope you try this code when ever you want to purchase a new device.

Code 5
    *#*#7594#*#*
This code Changes the power button behavior-Enables direct poweroff once the code enabled on your device.

Code 6
*#*#273283*255*663282*#*#*
This works swiftly for users who wish to perform Backups on this phones, it performs a quick backup to all your media files.

Code 7
   *#*#197328640#*#*
This is  for Enabling test mode for service activity

Code 8
  *#*#232339#*#* OR *#*#526#*#*
It's simply  for Wireless Lan Tests

Code 9
   *#*#232338#*#*
This Displays Info about Wi-Fi Mac-address

Code 10
*#*#1472365#*#*
For a quick GPS test

Code 11
*#*#1575#*#*
A Different type GPS test

Code 12
*#*#0283#*#*
Packet Loopback test

Code 13
*#*#0*#*#*
Use this code only testing the LCD display of your device

Code 14
*#*#0673#*#* OR *#*#0289#*#*
        Audio test

Code 15
*#*#0842#*#*
Vibration and Backlight test

Code 16
    *#*#2663#*#*
Displays touch-screen version

Code 17
    *#*#2664#*#*
Touch-Screen test

Code 18
 *#*#1111#*#*
        To Display FTA Software version
 *#*#2222#*#*
To display FTA Hardware verion

Code 19
   *#*#44336#*#*
             Displays Build time and change list number

Code 20
 *#06#
         Displays your International Mobile Equipment Identity (IMEI)number

         Now you have a better idea of what you phone code do with just codes, Don't be just a mobile phone operator, be a PRO.