Hi @LTR welcome to the /e/ forum. Thanks for the good description of your issue!
You say:
The easy installer says press power, bixby and vol down until the device turns off
The easy installer then says press power, bixby and vol up until Teamwin appears but it does not come on the screen
In Know your Hardware # Your first boot into TWRP I wrote:
The instruction set to make your first boot into TWRP is often abbreviated for experienced users, but for a first timer would read:
- Please now Force stop the phone (in the current “Download mode” never mind “Do not turn off target”)
- Use Volume down + Home/Bixby + Power to Force stop.
- Attend carefully, keep holding the buttons - it may take about 7 seconds,
- the instant the screen goes black (black as in off) and before the device starts to restart
- instantly change the finger press to Volume up + Bixby/Home + Power.
- Be prepared for another 7 second hold without relaxing, until Teamwin is seen.