You have bought LG’s latest and greatest handset, the LG G4. Have you checked the touch responsiveness of your G4? Some users have complaints about touchscreen issues on their LG G4. They are experiencing non-responsive and non-sensitive touchscreen on their handset. Read on to know how to check touch responsiveness of your LG G4.
Like most Android phones, LG G4 has also a diagnostic menu (service menu), which lets you check the phone for various issues like non-responsive screen, faulty LCD, accelerometer, camera, speaker, and more. You can use this diagnostic menu to check touchscreen issues in your LG G4.
Touchscreen issues may happen either by software bugs or by the touch panel itself. While the software related issues could be fixed by a software update, the touch panel issues can only be fixed by replacing it. However, the procedure described below does not help you fix the both issues.
1. Open the dialer app and enter the code
277634#*#. This will open the Service Menu.
2. Now, go to Device Test -> Service Menu -> Manual Test -> Touch Draw Test -> Manual.
3. On the screen, touch/tap/knock/slide. Repeat this few times. If you do not see any red marks, it means that your phone has failed to recognize your touch.
The below video lets you know how to test your screen for issues.
For your information, LG G4 packs in some very powerful hardware. It comes with a 5.5 inch QHD display (2560 x 1440 pixel resolution) and powered by 1.8 GHz Qualcomm Snapdragon 808 processor, with 3 GB RAM and 32 GB internal memory (expandable up to a massive 2 TB via SD card), and running Android Lollipop.
The handset has an 8.0-megapixel front camera and a 16.0 Megapixel rear camera with LED flash. On the connectivity front, it has NFC, Bluetooth, Wi-Fi, GPS and USB port, and is further backed by a 3,000-mAh battery. (Source – XDA)