What is the reason why the OPPO R7 has no signal?

If there is no signal on your phone, we recommend that you try the following steps:

The network mode selected by the mobile phone is not covered in the local area, it is recommended to change the network mode (Settings - General - Mobile Network Data Network), select 2G, or 4G 2G, 4G 3G 2G comparison;

Try to re-insert or replace the SIM card to troubleshoot the SIM card.

If the location of the mobile phone belongs to an area with weak signal coverage or alternate signal coverage, it is recommended to restart the mobile phone and change the use location;

There is strong magnetic field interference in the use environment of the mobile phone, compared with other mobile phones.

If none of the above methods can solve your problem, please bring the purchase invoice, warranty card and mobile phone to the nearest OPPO customer service center for testing and processing.

There are two situations when there is no signal:1SIM card is not turned on2The card is not inserted properly.

Method: One: Start SIM card:

Find the settings in the phone, and then click to open [Dual SIM and Network Settings] as shown below.

2.Then click to turn on [Enable SIM Card] and you're done.

Two: Check if the card is not pressed well.

Go to the phone settings and open [Instructions] (Tools - Service Guide) to find the full instructions.

Find the introduction of the mobile phone and how to use it quickly, SIM card installation and SIM card pick-up, and follow the specific tutorial to install the SIM card.

There are two main categories of mobile phone no signal:1. The signal strength is not enough, and the signal is weak and weak.

2. The signal power is not enough and very weak, and it can be accessed with a wireless socket.

When you connect to broadband communication, because the receiver's mobile phone is connected to the port, the signal cannot be accepted or the signal cannot be received for three reasons:

1. The mobile phone does not support dialing;

2. The mobile phone is not charged or the power supply is insufficient;

3. The mobile phone does not receive enough signal, so the mobile phone has no signal.

Because the mobile phone does not transmit a signal with high power, the mobile phone can only receive some short, near, and weak signals, so the signal is poor.

For the reasons for insufficient signal strength, there are three kinds, iPhone is one; OPPO no signal mobile phone is one; Another is that when the signal power is very small or the mobile phone is not enough to support it, the receiving signal cannot be activated.

Do a factory reset and find a new SIM card. Give it a try.

There are two situations when there is no signal:1SIM card is not turned on2The card is not inserted in a good way: one: start sim card:

Find the settings in the phone, and then click on it to open [Dual SIM and Network Settings], as shown in Figure 2 belowThen click to turn on [Enable SIM Card] and you're done.

Two: Check if the card is not pressed well.

Go to the mobile phone settings and open the [Instructions] (Tools - Service Guide), find the complete instructions, find the introduction of the mobile phone and how to use it quickly, install and take the SIM card, and follow the specific tutorial to install the SIM card.

First of all, confirm whether your mobile phone is the full Netcom version, and change to another SIM card to see if there is a signal.

If the above problems are ruled out, it is estimated that the contact point of the SIM card slot is unstable, and it is recommended to go to the customer service center for repair.

OPPO R7 Plus is a smartphone released by OPPO in May 2015, the product features are mainly focused on "taking pictures" and "flash charging", and was officially released on May 20, 2015 at Beijing Aoya Convention and Exhibition Center.

All-metal one-piece body.

OPPO R7 PLUS OPPO R7 Plus has an all-metal integrated body with a screen-to-body ratio of up to 80%, using a one-piece molding process (UNIBODY process), stamped from a piece of aluminum-magnesium alloy, and going through a total of 48 processes such as stamping-CNC-nano injection molding-grinding and sandblasting, before the final product.

6-inch curved screen.

The front of the OPPO R7 Plus uses a curved glass screen, which makes the front edge of the phone free of stiff edges and corners, and the grip is suddenly improved.

Regarding the question, what happens to the OPPO R7 Plus phone that has no signal all the time? The solution is as follows.

1.Restart your phone or try to change the environment.

4.Turn off the power off and remove the SIM card, and use the eraser to wipe the SIM card chip.

If the mobile phone has an unstable signal or a bad signal, it is recommended to:

1.Restart your phone or try to change the environment.

4.Turn off the power off and remove the SIM card, and use the eraser to wipe the SIM card chip.

5.Replace it with a different SIM card.

6.Back up your phone's data (**book, SMS information, multi** data, etc.), factory reset attempt: Settings - Reset Privacy Personal - Factory reset.

If the problem still exists after the above operations, it is recommended to bring the purchase invoice, three guarantees voucher and mobile phone to the local OPPO service center for testing by the engineer.

Open GPRS data no.

The card used is not adapted to the network standard of the machine.

To rule out these, it is recommended to replace the card and try again.

1First of all, make sure that you have turned on the data data function, and if you have dual SIM cards, you should choose the right card to use. Then enter"Settings"Inside, this different mobile phone has different ways to enter, and the interface will be different after entering:

2Select "Wireless & Network" settings:

3 Then select the "Mobile Network" setting and make sure that the card number for data and data connection is enabled

4. Select "Card 1 Settings" (or "Card 2 Settings" to see which card you use for traffic):

5 "Network mode" If you don't choose it, it's generally the first one by default:

What should I do if my phone can't connect to the data and can't access the Internet?

6 The key point here is - click to select "Network Operator", and the automatic selection is good:

7 So this method is to re-select the "network operator", which is equivalent to refreshing the network connection, which is useful when I encounter a lot of times when I can't connect, I hope your phone can also be useful!