Default External Sd Card app rewrites

Does anyone know why my external sd card rewrites on some apps and some do not on kk.i have the stock rom us v500 rom and says in op it has external sd card fix in it but on my note 3 I can write to all apps on my lg gpad some apps work others doesnt let me write for example camera 360 works on note 3 kk but not lg gpad kk and both have the sd card fix.Is there a zip out there or another lg rom I could try?Am I the only one?If I flash the note 3 zip for external fix would it work or would it mess system up?

Sent from my LG-V500 using Tapatalk