The cryptic part being this is not talked about much. Or manufacturers choose to skirt this issue. If you read online this issue can randomly happen to any device after a software update without physical damage. With phones getting 4-7 years of software updates this becomes a serious issue when updating especially when you are out of warranty.
It happened on iPhone X in the same manner. It was caused by micro fractures to the digitizer due to impact, but sometimes the symptom wouldn’t manifest until the kernel extension (driver) was updated.
When it happens the repair is replacement of the screen. This is one of many reasons to check the repaiability of a device before deciding which to spend your money on
It is a hardware failure. Screens are complex and sensitive parts that are exposed to a lot of (ab)use. What is cryptic about that?
The cryptic part being this is not talked about much. Or manufacturers choose to skirt this issue. If you read online this issue can randomly happen to any device after a software update without physical damage. With phones getting 4-7 years of software updates this becomes a serious issue when updating especially when you are out of warranty.
It happened on iPhone X in the same manner. It was caused by micro fractures to the digitizer due to impact, but sometimes the symptom wouldn’t manifest until the kernel extension (driver) was updated.
When it happens the repair is replacement of the screen. This is one of many reasons to check the repaiability of a device before deciding which to spend your money on
https://www.ifixit.com/repairability