If you're due for an update or are experiencing issues with your current firmware, I recommend giving v5.2.1.37-en-ptc01 a try. As always, make sure to follow proper installation procedures to ensure a smooth transition.
4.5/5
A Solid Firmware Update - v5.2.1.37-en-ptc01 Review v5.2.1.37-en-ptc01 firmware download