Fix for data leak while roaming experienced in some regions

Fix for microphone being muted when using Google Hangouts

Fix for app drawer not launching when google search bar is hidden

GMS 3.0 upgrade

APN update to support Tigo carrier

Security patch update

General bug fixes and optimizations

Hi everyone,We've started rolling out OxygenOS 2.2.1 on thetoday. Here's what's new in this update:As usual, the rollout will be incremental. I will do my best to get everyone covered as soon as possible. Please let me know what are your thoughts and comments on this update.