Iphone5 Unicom contract machine sends short messages very slowly and can't get online. The phone is often disconnected, but when the signal is full, it still shows 3G. What happened?

Hello, according to your description, I suggest you go to the local business hall to do the machine card exchange test first to see if it is a mobile phone problem or a card problem. The phone settings are as follows:

Go to Settings-Network-Enable 3G.

Turn on data roaming;

APN cellular data network: 3GNET, 3GWAP or UNINET can be used.

Open Safari and log in to the website.

Setting method of APN and MMS for mobile phone.

Go to Settings-> General-> Network-> Cellular Data Network and set it according to the following format (leave blank).

celluar data

APN Unicom users fill in 3GNET or UNINET.

user name

password

Multimedia message

APN Unicom users fill in UNIWAP or 3GWAP.

User name is empty.

Password is empty.

MMSC Unicom users fill in

MMS agent 10.0.0. 172

The maximum MMS size is 10240.

Tips: Unicom contract machine usually sets the above parameters by default after loading Unicom card. If you need to change the above parameters, please restore the network settings and restart the phone.