![]() If the digitizer on an old phone starts to lose its mind, you’re better off cutting your losses and getting a new phone. And as Wiens said, if the repair isn’t done right you can still wind up with a degraded digitizer. That’s a task that either requires professional help or serious technical skills, as you can see in iFixit’s screen-replacement guides for the iPhone 5 and the Samsung Galaxy S5. Should this issue resurface, you might as well try a factory reset here’s Apple’s advice and here’s Google’s on that procedure.īut if that, too, fails, you will probably have to replace the digitizer - which usually means replacing the entire screen, since the digitizer and the LCD are generally built as an integrated assembly. The problem may go away, in which case you should immediately do as complete of a backup as is possible. If, however, your first sign of trouble is the phone going haywire, shut it down before the hyperactive digitizer can start calling or texting friends on your behalf. Or, if you’ve enabled the Settings app’s hidden Developer Options menu, you can activate a "Pointer Location" option there that draws a thin line everywhere the screen senses your touch. In Android, you can also check its accuracy with apps like the free Screen Touch Test. ![]() You may get some advance warning of this condition in the form of certain parts of your screen no longer responding to a tap.
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