Fire and technology app can't be opened.

(1) Click Settings-Applications-All-Find Software-Clear Data, clear the software data and open it.

② After uninstalling, download and install the corresponding program again.

(3) If all the software is slow to open or there are problems in opening, you can back it up and try to clear the cache and user data when restoring. Methods: Press and hold the "Volume Increase Key" and then the "Power Key" when the power-on screen appears, and then let go to resume. Select simplified Chinese > clear data > clear cache+clear user data. Tip: The touch screen is temporarily disabled in the recovery state. Please confirm with the "Power Button" and select the "Volume Button".

(4) If the corresponding program has problems after the above operations, and other software programs are normal, it can be judged that the program is incompatible with the system. You can try to replace other versions of the program of Huohe Technology.