I linked the qq number with someone else, but I haven't heard from him recently and I haven't cancelled the connection. Click on the message box and his head will turn gray.

1. When an account is associated, as long as one party views the message, no message will be prompted;

2. It may be caused by network delay, or in rare cases, there are some problems in the system, which is very rare;

3. The other party may have changed the password and need to re-verify the login.

QQ connection method:

1. Open the QQ click settings of the mobile phone.

2. Click Account Management.

3. Click the relevant QQ number.

4. Enter the password of the account to be associated.

Extended data:

QQ is the abbreviation of Tencent QQ, which is an instant messaging software based on Internet developed by Tencent. ? Tencent QQ supports online chat, video call, point-to-point breakpoint continuation, file sharing, network hard disk, custom panel, QQ mailbox and other functions, and can be connected with various communication terminals.

In February, 1999, Tencent's Instant Messaging Service (OICQ) was launched, which is interconnected with wireless paging, GSM short messages and IP telephone networks. ?

1999 1 1 month, the number of QQ users registered reached 1 ten thousand.

In April 2000, the number of registered QQ users reached 5 million.

In June 2000, the number of registered QQ users exceeded10 million, and "mobile QQ" entered Unicom's "mobile new life".

200 1 1 3 1, NetValue published the rankings of Internet websites and entities in five Asian countries and regions, including data from China, Hong Kong Special Administrative Region, South Korea, Singapore, Taiwan Province Province of China and Chinese mainland. Tencent ranks sixth in China.

In February of 20001year, the registered users of Tencent QQ have increased to 50 million.

In March 2002, the number of registered QQ users exceeded 654.38 billion.

In July, 2002, he advocated industry self-discipline and signed the China Convention on Self-discipline of Internet Industry.

In August 2003, the launch of "QQ Game" once again led the Internet entertainment experience. In September this year, the number of registered QQ users increased to 200 million.

On September 9th, 2003, the enterprise-level real-time communication product "RTX" was grandly released in Beijing Kerry Center, marking Tencent's entry into the enterprise-level market and becoming the first enterprise-level real-time communication service provider in China.

On June 5438+February, 2003, Tencent's latest instant messaging software, Tencent Messenger (referred to as Tencent TM), was released for users in the office environment to download and use, and conduct instant messaging with familiar friends.

Baidu encyclopedia _ Tencent company