The Android 4.4.3 update has been reported to have problems, regardless of being a bug-fix update as Android Open Source Project tracker reveals multiple reports of issues and bugs for Nexus devices.
The Android 4.4.3 update was released to the Nexus 4, Nexus 5, Nexus 7, Nexus 10, Moto G, Moto X, HTC One, Google Play Edition Samsung Galaxy S4 and other devices over the past few weeks.
This Android 4.4.3 update is an incremental update with a series of bug fixes, designed to fix problems like camera issues, battery drain, bugs for the Nexus 5, and additional features for the Motorola devices. There is a list of reported problems and can be seen in the Android Open Source Project issue tracker and there are already some reports of Android 4.4.3 update problems.
Some users who experienced the problem shared their issues ranging from problems with the dialer crashing for the Nexus 4 and Nexus 5 to crashing issues for the Moto X. Some reports said that the Nexus 4 is having random reboot bug, issues with Wi-Fi failing to connect and auto-brightness working improperly. The Nexus 10 and Nexus 7 are also experiencing a continuation of the battery drain bug with an additional issue of not all notifications showing up correctly.
It seems like the Nexus devices are the main one's having serious problems since the Android 4.4.3 update, unluckily the camera is also an issue.
The Nexus 5 was reported to have issues such as lag in the dialer app, difficulty in Wi-Fi connection and problems in apps like Gmail, Google Play Store and the GPS. The Nexus 7 have reported issues with the Google Play Music and the VPN connection.
Thus far, things are hard to verify as some users of Nexus 5 said that they are not experiencing any problems with the Android 4.4.3 update. Their devices are working properly, with no evidence of increased battery drain and problems connecting to Wi-Fi. Nonetheless, hopefully, Google will fix the problem certain users have been experiencing from the Android 4.4.3 update.