How to fix OnePlus 3 and 3T lag problem on Android Pie update (slow device issue)

OnePlus 3T lag on Pie update

OnePlus updated the OnePlus 3 and 3T well over the two years with upgrades to Android Nougat and Android Oreo, but when they announced Android Pie for OnePlus 3 and 3T, we were surprised for good.

The announcement naturally excited the OnePlus 3 and OnePlus 3T users a lot, when the big Android 9 update rolled out the joy soon turned ominous for some users. Many have complained of experiencing slow device performance after the update. According to the complains, the device is lagging a lot on Android Pie, thus impacting performance on an otherwise speedy device.

How to fix the performance lag and sluggish UI on OnePlus 3 and 3T.

Here are some tricks to help you remove lag on Android Pie uu on your OnePlus 3 and 3T.

Switching off and restarting the device, reboot, clearing cache are some of the corrective measures tried by the users but nothing seemed to help.

Here are two solutions that can fix the lag problem on the device once and for all:

Install the latest update (OxygenOS 9.0.3)

Make sure you have installed the latest update for your OnePlus 3/3T.

  1.  Download the latest Android Pie update, version OxygenOS 9.0.3, on your device.
  2. How to install an update on your OnePlus 3 (The guide is for OnePlus 7 Pro but is same for the OnePlus 3T too.)
  3. If need be, factory reset the device (as given below) after installing OxygenOS 9.0.3.
Factory reset on Samsung devices

More solutions?

Well, installing a custom ROM isn’t a bad idea. The devices are so old that you don’t risk losing the warranty anymore, so by unlocking the bootloader, you can install TWRP and use it to install a custom ROM of your choice to see the great benefits a ROM provides.

Given that custom ROMs will also bring — yes, we are sure! — support for Android Q, there is no harm in jumping the gun now than later.

Find custom ROMs here

Let us know which solution works the best for you.