* Note: This below solutions also applies to all
Android phones not only MTK phones like Tecno, Infinix, Gionee etc
The possible causes of this problem are :
1. a Corrupted or missing Phone.apk file
2. An Unexpected crash in Phone.apk while attempting to display a caller ID and other
information
How to solve the problem
Method 1: Using Ultimate Caller ID Screen HD
Download and install Ultimate Caller ID Screen HD from the following link@ https://play.google.com/store/apps/details?id=com.lowveld.ucs&hl=es
Method 2: Clear your Phone’s data and cache
* Go to
Settings > Apps > All > Phone
* Clear data and cache
* Reboot your phone
Method 3: Replace Phone.apk (this is your last
resort when the first and second method fails)
Download your phone’s Stock ROM @https://forum.hovatek.com/forum-89.html and flash only system.img (Android)
using SP flash tool @ https://forum.hovatek.com/thread-159.html
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