Download ZenFone 2 (ZE551ML) v2.20.40.90 FirmwareSeptember 13, 2015 By Asif Leave a Comment Filed Under: Android, FirmwareAsus ZenFone 2 ZE551ML is getting a new firmware update, version 2.20.40.90, that aims to fix issues with quick charging, memory management, and yellowish tint in photos shot with flash. [Read more…]