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What Causes No Signal To Android Phone And Repair Step

No signal damage or a weak signal will be a big problem for users of phone or tablet android.

Damage like this very often happens and will be able to use us to do activities using a phone-based Android operating system, Windows Phone, Java Mobile, or Nokia Symbian.

Usually the occurrence of no signal or weak signal appears when we bring an Android phone or tablet into a closed room or inside the house.

It will look at the LCD Display icon bar signal phone starts to weaken or at all disappear and only write the notification "emergency only", this is certainly difficult if we want to make a call Telphon while indoors.

Mobile users with the Android operating system based in the present era are very much.

And the level of mobile phone usage to connect to a mobile network will be increased such as making Internet connection, making phone calls, sending short messages (SMS), or other activities. And surely if there is a weak problem signal or no signal on the Android phone it will be very annoying.

Recognize the causes of weak signal or no signal on the phone or Tablet Android

Before conducting a deeper analysis of the cause of problems with no signal or weak network on a device or tablet, The initial equipment can do a simple analysis first, this simple step can overcome the damage no signal on the Android Smartphone or other types of phones.

1. CHECK AND CHANGE YOUR SIM CARD

What Causes No Signal To Android Phone And Repair Step
As a first step, you can do a check on the SIM card that is used on the smartphone or Tablet, note whether there is physical damage to the sim card tries to make changes using the new SIM card with good condition to check if this is the cause of the problem damage no signal or also weak signal on the phone and also tablets.

2. DO A RESTART ON SMARTPHONES AND TABLETS

You can also restart the phone if there is a constraint with no signal, it may be a system in the smartphone and cause a problem with no signal or weak signal, reboot on the device can fix the in-the-case of the operating system used on each phone.

3. CHANGE TO AIRPLANE MODE IN A FEW SECONDS

To overcome no signal on a phone or tablet Android, then you can try to make changes to airplane mode about 10 seconds, and after that turn off the airplane mode, and switch the smartphone back to automatic network search.

The method of activating the airplane reservation mode is also very good if on mobile data networks such as 3g, 4g can not appear, they can be done the same method.

4. SELECT THE NETWORK AUTOMATICALLY OR MANUALLY

This can be done for all types of Android phones, and certainly able to solve the problem no signal, to try to do an automatic or manual network method can be with the following steps:
  • Go to the Settings menu of your device.
  • Look for More networks and tap on it.
  • Now tap on Mobile networks on the next screen.
  • Tap on Network operators and choose.
  • Select Automatically from the next screen.
Once the smartphone and tablet are completed, you can get a good signal.

5. RADIO SIGNAL BROADCASTING SETTINGS

Sometimes the phone has no signal or no service, when the phone starts to be turned on, to overcome it can use the following ways:
  • Open your Phone Dialer and type * # * #4636 # * # *,Call this number and see its results.
  • You will be directed to the test menu on your phone's screen, and then click on the Phone/device Information section of the menu.
  • Perform a ping test and then select the GSM Auto (PRL) mode from the list that is available.
  • Once done, the next step restarts on your smartphone device, and wait for it to turn back on and see if the signal can already appear well.

6. UPDATE THE OPERATING SYSTEM

Damage to the operating system or any bugs in the software can cause damage and no signal problems. Try to update the software on your smartphone device or any tablet you have. To update the software can be in the following ways:
  • Select your device's settings menu.
  • Scroll down and search about devices or about phones, about tablets.
  • Tap on the Update Check menu, if a software update is available then download it to completion.
Once the system update is complete, the smartphone and tablet will automatically restart itself and will do the network search automatically, and expect no signal problems can be solved.

7. CHECK THE IMEI CODE ON YOUR PHONE OR TABLET

What Causes No Signal To Android Phone And Repair Step
Malfunction of the operation of the device on Android smartphones or tablets can cause a null IMEI code problem or IMEI invalid.

This can lead to loss of signal and also SIM Card is not detected on the phone.

To check the presence of IMEI code you can do typing the code * #06 # on your phone dial pad and see the result of whether the IMEI code of your mobile device is found.

If apparently IMEI invalid or IMEI null then the repair step can re-install using software or Stokrom according to mobile type.

But some types of mobile phones can be done to rewrite the IMEI number manually using the way MTK engineering.

8. HARD RESET OR WIPE DATA

If some of the steps above still can not give the best results, then you can do a hard reset on the phone or wipe the data by going into recovery mode on the phone.

This way will make all data on the operating system clean again and back to a normal state. To perform a hard reset on your Android smartphone or tablet can be with the following steps:
  • Go to your device's settings menu.
  • Tap on the Backup menu and reset.
  • You can check or uncheck the option to make a backup of this screen.
  • Hover the bottom will find the button to reset the phone, the tab in that section, and wait for the process to move until the phone is turned back on.
Then the phone will perform an automatic search on the carrier's network.

9. PERFORM ANTENNA LINE INSPECTION

What Causes No Signal To Android Phone And Repair Step
If some basic steps such as restarting the phone or reinstall still do not give good results in the problem of damage no signal.

Then the following steps can be checked in the component section especially on the line of the mobile antenna

To do this you must dismantle the phone or tablet as a whole. To check the antenna path condition whether there is damage or line breaking.

10. DO THE LINE JUMPER OR SWITCHING ON THE SIGNAL IC

What Causes No Signal To Android Phone And Repair Step
Damage to the internal components of supporters such as Transistor, resistor, diode, or IC can cause the occurrence of no signal or weak signal on the smartphone and also a tablet.

Step to fix, you can do away jumper on the component that suffered damage such as the diode or resistor.

But if the damage occurs in the IC signal, the best step should be to change with the new part IC. Usually, by making IC changes, no signal damage will be resolved immediately.

So some ways to fix the problem no signal on your smartphone or tablet Android device that you can do.
Hopefully, it can be useful for all of you. Thanks.