I have a brand new S9 SM-G960F and S9+ SM-G965F. I was able to successfully install /e/ on the S9 SM-G960F but the S9+ SM-G965F is giving me a lot of trouble.
OEM unlocking is enabled (Bootloader already unlocked). USB Debugging is enabled. Yet when I attempt to install TWRP it always gives me the error “Only official released binaries are allowed to be flashed(RECOVERY)”. On the phone Odin mode shows the following status:
RMM STATE : Prenormal
KG STATE : Checking
FRP LOCK : OFF
OEM LOCK : OFF
Secure Download : Enabled
Any help would be much appreciated. I am using Heimdall v1.4.2 on a Mac to install TWRP. Would using a PC to try Odin or the Easy Installer be likely to work given the above facts? I’ve tried the various tricks (waiting 7 days etc.) with no joy. Please help.