I have updated my Z2 to Lollipop few months ago. I found out that after 2 weeks, the left keypad could not be used, I could not press on "1", "Q". Now I have to one-hand keypad.
Yesterday, another issue happened. The android buttons are not responsive, the "back", "home" and "multitask" button do not react to me at all. I have to make the screen landscape if I need to use those buttons.
But when I am on lock screen, the "call", "unlock" and "camera" button is responsive. I did factory reset and wipe cache but still not helping. I asked some friends but most people say that it's the digitizer problem because none of them experience these before. I am not sure about this, but there are no dead pixels, no dropping at all. The age of the phone is 1 year. Everything was fine when I am on 4.4.4, all went wrong after I updated.
What can I do to fix this?
Yesterday, another issue happened. The android buttons are not responsive, the "back", "home" and "multitask" button do not react to me at all. I have to make the screen landscape if I need to use those buttons.
But when I am on lock screen, the "call", "unlock" and "camera" button is responsive. I did factory reset and wipe cache but still not helping. I asked some friends but most people say that it's the digitizer problem because none of them experience these before. I am not sure about this, but there are no dead pixels, no dropping at all. The age of the phone is 1 year. Everything was fine when I am on 4.4.4, all went wrong after I updated.
What can I do to fix this?
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