Yes, its 5 years old 
but I just got it as a replacement to my zeblaze thor 3g that has ghost touch. D7 is one of watch by DT no.1
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Did you try a factory reset to correct ghost touch ? Usually works
No I haven’t tried yet, 
right that might be worked. I didn’t think about that because the ghost touct appear after i wash my hands, so i think it’s a hardware problem, water leakage. But will try it to factory reset.
Okay . It would be good to know if it works 
It’s not working, the ghost touch still there. I think i have open it up
Thats a shame . When its a hardware issue there is usually nothing you can do