How does vivo Y3 change E to 4G?

1. Confirm whether to use third-party magnetic or metal accessories.

Please check whether you use metal protective shells, magnetic protective shells, magnetic brackets and other accessories, metal and magnetic materials are easy to interfere with signal reception, it is recommended that you remove the accessories to view.

2. Check whether the current environment covers the operator's network.

If you are in a closed indoor environment (such as a basement, elevator, etc.), the mobile phone signal may be blocked, resulting in poor signal, you can go to an outdoor environment to check. If you are in a remote area and the signal may be poor, you can determine whether it is the cause of network coverage by using the mobile phone signal of the same operator's network in the vicinity.

3. Check the SIM card and verify the cross-card swap.

Observe whether there is dirt or oxidation on the metal surface of the SIM card, and check it after cleaning. If you use a tailor-made SIM card, it is recommended to replace it with a standard SIM card. Install the SIM card to another device, or install another SIM card to your mobile phone for comparison and testing to determine whether it is a SIM card failure.

If it is a SIM card reason, it is recommended that you go to the operator's office to replace the card.

4. Reset network settings.

Go to Settings - System Management - Backup & Reset - Reset Network Settings - Select the corresponding SIM card - Reset Settings, and then use View.

Note: Resetting network settings resets Wi-Fi, mobile data, and Bluetooth connection records.

5. Service center testing.

If the above methods do not solve your problem, please back up your mobile phone data in advance, and bring your mobile phone and purchase voucher to vivo customer service center for testing.

Sometimes the signal display of the mobile phone will change from 4G to E, and it is also possible that the direct display is E.

One reason is that the phone is in a place with a weak signal.

Just walk to a place with a good signal.

You can also press and hold the "Data Icon" to enter "Network Settings".

Click on "Network Type Selection".

Click on '4G Network.'

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If it still can't be used, you can dial ** to the operator to manually reset the network.

You can try to turn on the mobile phone airplane mode of the phone, wait for a few seconds, and then turn off the airplane mode, so that the phone can search the network again and generally return to the 4G network; Or leave the current area and wait for a while, and the phone will change to a 4G signal.

2. Or open the [Dialing] interface of the mobile phone, enter * *, and click the [Dial Key];

3. Select [Mobile Phone Information] in the open options;

4. Scroll down on the information page until you see [Set Preferred Network Type], click to open the drop-down menu, and select [LTE ONLY], so that you can lock the 4G network, but it will appear in areas with weak signals, and the phone will directly have no signal, and will not fall back to the 2G signal, which is E;

5. You can also find the [Mobile Network] - [Preferred Network Type] option in the [Network] settings of your phone; Set the network mode to 4G;

The data network is automatically switched over due to the following reasons:

1. The automatic switching of the data network depends on the coverage of the local network, and the mobile phone will automatically switch to a more stable network use, such as: switching from 5G network to 4G network, from 4G network to 3G network.

2. If the SIM card is in arrears, the data network will be limited and the network will be unavailable.

The E icon is displayed in the status bar of the phone screen, which means that the phone is surfing the Internet through the Edge (data connection mode.

In this case, the local network signal is generally not very good and the network coverage is low, the phone will automatically switch to a more stable network. When the 4G network is unstable, Qirunai will automatically switch to the 3G 2G network for use; When the 3G network is unstable, it will automatically switch to the 2G network for useYou can try to turn off the data network, wait for a few minutes and then turn it back on for observation, if it still doesn't work, you can turn off the phone and restart the phone

The 4G network becomes E (which means the 2G network) and can be handled as follows:

1. Restart the phone, re-trigger the network, and see if it recovers.

2. Reset the mobile network settings.

Go to Settings - System Management - Backup and Reset - Reset Network Settings - Select the corresponding SIM card - Reset Settings, and then use View.

Note: Resetting the network settings will delete and disconnect the connections, pairing records, etc. of Wi-Fi, mobile data network, Bluetooth and other networks, it is recommended to back up important data before the operation.

Backup: Go to "Cloud Service" -- Device Cloud Backup -- Backup Data - Open "System Data" -- Return to the previous page -- Back up now, and back up some system settings.

3. Try to reseat the SIM card.

Go to Settings - System Management My Device - Customer Service - User Manual - Phone Overview and Quick Start - Installation and Preparation to learn how to install and remove memory cards and SIM cards.

Note: SIM card 1 and SIM card 2 are installed in the same way.

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What to do <> vivoy77e into 4G.

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The solution for vivoy77e to become 4G is 1. Tap [Mobile Network] in the phone settings menu. 2. Select a SIM card in the juxtaposition of SIM card information and set up, and cancel the switch on the right side of [Enable 5G]. [Happy Noise Hungry] <>

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In terms of storage, vivoy77e provides 8GB+256GB, 8GB+128GB, 6GB+128GB three storage combinations, using LPDDR4X+ storage, and supports 1TBTF card expansion. The power side is staring at the mega surface, vivoy77e has a built-in 5000mAh battery and supports 18W flash charging. <>

In terms of <> screen, it adopts an inch LED screen with a resolution of 2408*1080 and a refresh rate of 60Hz. In terms of images, the vivoY77E has a 1300-pixel main camera and a 2-million-pixel macro lens on the rear, and an 8-million-pixel lens on the front. Otherwise, the vivoY77E has a body size of 164mm and weighs about 194g. Run originosocean based on development; Support side acacia fingerprint and facewake facial recognition; Keep the headphone jack; Super speakers are available, and the lead lacks support for up to 200% volume.