Samsung Phone Lines on Black Screen: How To Fix Vertical/Horizontal Lines on Samsung Smartphones

If you’re seeing vertical or horizontal lines on your Samsung phone’s screen, you’re not alone. This is a common problem that can be caused by a variety of factors. In most cases, the problem can be resolved without having to replace the screen.

Here are a few things you can try:

Update your phone and all apps

One possible cause of screen lines is a software issue. To rule this out, make sure your phone and all of your apps are up to date.

To update your phone, go to Settings > Software update.

To update your apps, open the Google Play Store and tap on the menu icon in the top-left corner. Then, tap on My apps & games. Any apps that have updates available will be listed here.

Reseat all display cables

If updating your software doesn’t fix the problem, the next step is to reseat all of the display cables. This is a simple process that can be done in a few minutes.

To reseat the display cables, you’ll need to:

1. Power off your phone.
2. Remove the back cover of your phone.
3. Locate the display cables and gently disconnect them from the motherboard.
4. Wait a few seconds and then reconnect the display cables.
5. Replace the back cover of your phone and power it on.

Replace the display

If reseating the display cables doesn’t fix the problem, you may need to replace the display. This is a more complicated repair, but it’s still doable if you have some experience with electronics repair.

To replace the display, you’ll need to:

1. Power off your phone.
2. Remove the back cover of your phone.
3. Disconnect the battery from the motherboard.
4. Remove the screws that hold the display in place.
5. Gently lift the display off of the phone.
6. Connect the new display to the motherboard.
7. Replace the screws that hold the display in place.
8. Reconnect the battery to the motherboard.
9. Replace the back cover of your phone and power it on.

Replace the affected cable (or display assembly)

If replacing the display doesn’t fix the problem, you may need to replace the affected cable or display assembly. This is a more complicated repair, but it’s still doable if you have some experience with electronics repair.

To replace the affected cable or display assembly, you’ll need to:

1. Power off your phone.
2. Remove the back cover of your phone.
3. Disconnect the battery from the motherboard.
4. Remove the screws that hold the display assembly in place.
5. Gently lift the display assembly off of the phone.
6. Disconnect the affected cable from the display assembly.
7. Connect the new cable to the display assembly.
8. Replace the screws that hold the display assembly in place.
9. Reconnect the battery to the motherboard.
10. Replace the back cover of your phone and power it on.