For testing... GW3...
SM-R840 and SM-R850 p7
Code:
TIZEN_55_untested_GW3_smR840_smR850_p7_v1.bat
LTE devices like SM-R845F and SM-R855U... p8
Code:
TIZEN_55_untested_GW3_LTEseries_smR845_smR855_p8_v1.bat
WARNING! Not tested yet.
Maybe Security increased or changed...
OWN RISK!
Best Regards