It may not be fixed. Because the Apple XS screen soaked with a red line means that the screen is damaged, but its specific situation may vary by individual circumstances.
The way normal operation is restored depends on whether there is equipment repair skill and whether the liquid has caused more extensive damage to the phone.
If it is a minor problem, it may be easier to fix, but if the water is soaked for a long time or the liquid is spread throughout the inside of the phone, it may require more serious repair or replacement of the entire screen. Therefore, the specific repair situation needs to be evaluated by a professional mobile phone repair shop or Apple's official repair center.
Ability to repair
The color lines on the mobile phone screen are usually caused by the fault of the screen and the wiring.
This situation can not be simply repaired, can only be repaired.
It is recommended that users bring mobile phones, invoices, warranty cards to the local brand customer service testing.
The customer service engineer will test the phone to find out the cause of the fault and will inform the user.
The warranty of the mobile phone is at least one year, if the mobile phone is guaranteed and is responsible for the warranty after natural failure.
If it has been insured or caused by human failure, it can only pay for maintenance.