Xiaomi 2S telecom version, in Vietnam s WCDMA network, the data connection is invalid

The telecom version is CDMA2000

Vietnam's three major telecommunications are all based on the WCDMA model.

So when your Xiaomi phone uses a Vietnamese card in Vietnam, you can dial** and you can surf the Internet at wifi.

However, 3G cannot be used, so you should only be able to use GPRS mode.

What is shown is E and not 3G or H

There is no solution, that is, you can only use GPRS, and the solution is to change the Unicom version of Xiaomi 2S.

or other mobile phones that are suitable for China Unicom.

It's the same when you change to a mobile or telecom 3G phone, you can't use 3G

Several major operators in Vietnam currently use a frequency of 900MHz, so the Xiaomi 2S Telecom version cannot support the WCDMA 3G network of this frequency, please choose a model that supports 900MHz, please refer to the information.

Purely manual reply, please support if it is useful.

Hi! Can't get on the Internet" This question is very general, I try to guess the problem you may encounter, I suggest you try the method to operate it and see:

1. It is recommended that you put this SIM card into another mobile phone to check whether you can access the Internet.

2. If you can't access the Internet, please ask your carrier if you are in arrears.

3If it can be used, please put the leather cover into the Xiaomi hand Sakura grip blocker, turn on the data traffic switch, and reset the default in Settings - Access Point APN, and then restart the phone to try again.

4If you still can't access the Internet, it is recommended that you back up your data, enter recovery to clear all data (turn off, press and hold the volume up + power button to enter recovery), upgrade your phone to the latest development version of the system, don't install apps that require root permission for the time being, and see if it can be restored to normal.

5If you still can't access the Internet, it is recommended that you go to a nearby Xiaomi authorized repair point or Xiaomi Home to have the staff check it. Spine beard.

Mi Home address inquiry.

Mi Home is open from Tuesday to Sunday, from 10 a.m. to 6 p.m.

Try a different data cable, if it doesn't work, restart it, and if it doesn't work, format the disk.

Hi! Go to Settings > Network toggle the carrier information and set the network priority to CDMA priority.

Mine too, annoyed to death, can't get on the Internet at all outside. I went to the after-sales service, and I couldn't change a motherboard.

Hello, first of all, thank you for your support to China Telecom, first of all, make sure you have the network! You can shut down and restart, the network is unavailable, usually there is no network or the network is banned. Anhui Telecom online business hall Tianyi store wishes you a happy life!

No signal, no signal, weak signal.

Hi! According to the problem you described, it is recommended that you back up your important data first, and then enter Recovery to empty all data, and do not restore data temporarily after booting up, and see if it can solve the problem. (Backup:.)

Security Center - Backup, back up the data you need. Clear data: In the shutdown state, press and hold the volume plus button and the shutdown button, and let go when the boot screen appears, and you can enter recovery.

Go to Recovery >Chinese >> Clear Data >> Erase All Data).

You ask your carrier if it's a SIM card. Or let the customer service staff help you refresh the traffic and try it. If it still doesn't work, then you try to back up the data, go to recovery to clear all data (power off, press and hold the volume up + power button to enter recovery), wire brush to upgrade the phone to the latest development version of the system, don't install the application that requires root access first, and see if it can be restored to normal.

If you can't do it, go to the pit, dear.

Hi! Please check if your phone is down, or restart your phone to try it. Still no, please ask.

A more detailed description of the problem will help netizens understand the troubles you are encountering and help you solve the problem more accurately. Thank you for supporting Xiaomi phones!

Hi! If you have backed up your data before, or there is no data in your phone that needs to be backed up, it is recommended that you try to enter recovery (turn off, press and hold the volume up + power on button to enter recovery mode) to clear all data, do not restore data for the time being after booting, see if it can solve the problem, if it still can't be solved, it is recommended that you try to brush the line to the latest development version.

Please flash according to the flashing tutorial, and the sixth way is line brushing:

If you still can't solve it, you should go to the after-sales maintenance point!

Xiaomi Home.