remove frp always error

[intel32]

Do you want to select the BOOT file manually? YES!
Operation: Repair Boot
Selected model: SM-N770F
Software version: 1.32

Setting up enviroment... OK
Waiting for EUB device... [Exynos9810] ... OK
Sending first loader... release power key... [SM-N770F] ... OK
Sending loaders... error(10.2.4.2.3)
Waiting for EUB device... [Exynos9810] ... OK
Sending first loader... release power key... [SM-N770F] ... OK
Sending loaders... error(10.2.4.2.3)
Waiting for EUB device...

d/m to eub done but then i try to remove frp always error

 

[intel32]

model n770f