PROBLEM/QUESTIONS of Lenovo TAB A7 - 30 (A3300-HV) touchscreen

Hi, I recently got a TAB Lenovo A7-30 as a gift. It came in a box delivered with Earbud Headphones JBL and a sleeve of Samsonite. I've updated immediately after loading, and as I used it, I noticed erratic behavior of the touch screen:

1. registered "touch a ghost" (especially when using the keyboard, i.e. entered letters diff.)
2. Long press enter (ex using the keyboard, the letter T gets long for 3 seconds and turns into a 5)
3. There are dead zones (touch won't register). Especially near the edges of the screen
4. some entries will not register. (Duty press I.e. period key on the keyboard)
5. the parts of the screen has suddenly fails to register entries.

Is it a hardware problem or a software problem? Can what steps I take to solve it? Please address/solve this problem. Thank you.

I did:
A factory reset. (UNSOLVED)

More details:
CPU: MTK 8382 QC 1.3 GHz
Display: 7.0 1024 X 600 LED GLARE
System memory: 1 GB RAM
Storage capacity: 8 GB PMCE

Model: Lenovo A3300-HV
Build number: A3300HV_A442_01_22_141030_ROW
Kernel version: 3.4.67
Hardware Version: A3300HV_MB_V6.0
Android version: 4.4.2
Baseband version: A3300HV. V34, 08/2014/15-19:00


Tags: Lenovo Tablets

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