OnePlus has been quick to push updates to its flagship product, the OnePlus 3. The Chinese OEM, recently released OxygenOS 3.2.0 with a lot of bug fixes, especially those which fixed issues with the display settings and RAM management,
However, the update was pulled just after a day, after users reported some issues.
The company did not announce what issues these were, but user reports suggested it was due to some issue with the IMEI of the devices. But it appears that there were more problems in the 3.2.0 firmware.
OnePlus has released the OxygenOS 3.2.1 OTA Update for the OnePlus 3, and included a changelog for it as well, which you can read at its forums. The only noticable difference between OxygenOS 3.2.0 and 3.2.1 is that the update “Addressed SIM recognition issue”.