Well I got ahold of my 5th note 3 and nobody has the best step on how to unlock it on android 5.0 OC5 without downgrading back 4.2 so i will be posting it 
Step 1:
Root it using it CF-Auto-root
https://download.chainfire.eu/362/CF-Root/CF-Auto-Root/CF-Auto-Root-hltespr-hltespr-smn900p.zip
Step 2:
Get ahold of iDone's GTv3.1.5.apk & GTUpdate2_v3.1.8.apk Install them and do the update but dont press unlock yet
Step 3 :
Downgrade the modem back M13 or Mj4 (i will double check but i have the link for the one i used )
https://mega.nz/#!mg5nVZiD
I think it was m13 plus my phone says it sooo lol
Step 4 :
After downgrading the modem back to m13 you can now go to idone gt app and press (SIM UICC Unlock) after that restart the phone (now the phone is internationally unlock)
Step 5 :
Final in the unlocking process for it work in the united states aka domestic
Goto the phone app and dial *#0011# the menu should open up press menu and back then menu key input "Q" press ok then press menu key input again "0000" press ok and wait for the menu to open
UE Setting & Info >Setting >Protocol >GCF >GSM/(E)GPRS/WCDMA GCF ON
It will say "success". Reboot the device then its domestically unlock
P.S. if you are you are using a International sim the us in order for it to roam you would have to do this step
Im also not responsible for any damage done to your device :good:
Step 1:
Root it using it CF-Auto-root
https://download.chainfire.eu/362/CF-Root/CF-Auto-Root/CF-Auto-Root-hltespr-hltespr-smn900p.zip
Step 2:
Get ahold of iDone's GTv3.1.5.apk & GTUpdate2_v3.1.8.apk Install them and do the update but dont press unlock yet
Step 3 :
Downgrade the modem back M13 or Mj4 (i will double check but i have the link for the one i used )
https://mega.nz/#!mg5nVZiD
I think it was m13 plus my phone says it sooo lol
Step 4 :
After downgrading the modem back to m13 you can now go to idone gt app and press (SIM UICC Unlock) after that restart the phone (now the phone is internationally unlock)
Step 5 :
Final in the unlocking process for it work in the united states aka domestic
Goto the phone app and dial *#0011# the menu should open up press menu and back then menu key input "Q" press ok then press menu key input again "0000" press ok and wait for the menu to open
UE Setting & Info >Setting >Protocol >GCF >GSM/(E)GPRS/WCDMA GCF ON
It will say "success". Reboot the device then its domestically unlock
P.S. if you are you are using a International sim the us in order for it to roam you would have to do this step
Im also not responsible for any damage done to your device :good: