1) I can't edit and save files on my external sd card with Kingsoft or Polaris office
2) I use CyberGhost VPN service and the update causes network connectivity problems....constantly disconnecting/reconnecting. I can switch to WiFi and it works fine, but I need to use it on the Sprint Network. Sprint says it's not them tripping the connection.
Do I need to flash back to 4.3 to get this functionality back? Or are there better ways to fix these problems? I've read one post which stated flashing back from 4.4 will brick the phone.
I have managed to successfully root the phone (confirmed by Rootchecker) and install TWRP recovery using Goomanager.
Thank you in advance for any advice.