Worry-free mobile client is installed in the mobile phone, but it is impossible to log in. I want to know what happened.

2. It is recommended to uninstall this software to attack the new installation attempt.

3. Try to replace other versions.

4. Update the mobile phone system version and then try to install it.

5. Back up mobile phone data (phone book, SMS, multimedia files, etc.). ), restore the factory settings and then try to reinstall.

6. If it still can't be used after returning to the factory, other third-party software can be used normally, and only this software can't run normally. This is the compatibility problem of the mobile phone system.

Extended data:

Common troubleshooting of mobile phones:

Fault phenomenon: the software of the mobile phone flashes back.

First of all, there is too much cache garbage.

If the junk files are not cleaned for a long time, the mobile phone will become more and more stuck in use and will flash back.

Solution: Find the problematic application and clean up the data and cache (note: cleaning up the data will clear the personal settings and account information of the application).

Second, there is not enough memory.

Insufficient memory is an important reason for many programs to flashback.

Solution: Clean up background programs regularly.

Third, mobile phone antivirus software

Solution: It is recommended to download the program in a regular store.

Fourth, there is something wrong with the application version.

This is often a problem with the application itself. Too new or too old will be incompatible with the current system.

Solution: Just find the appropriate software version according to the system version.

Verb (abbreviation of verb) network problem

Some software needs a stable network, and using 2G/3G network may cause flashback.

Solution: It is suggested to use some large game software in WIFI environment or upgrade to 4G network.