Hahaha, how frustrated are you right now?
You asked 3 times and were blatantly ignored… The bastards .
CORRECT
Sorry mate, you will need an xM1 or FlexM1
Your choice of gen1a vs gen2
Great post here explaining the difference
RE: the Proxmark, you can actually write to a Gen2 with your phone.
BUT
The LF T5577 you will need the Proxmark3 (or blue cloner)
Any future implants including the FlexMN you will need a Proxmark3.
I know why you are trying to avoid it and I don’t blame you, but until something better comes along, (Flipper Zero ) The PM3 is your best bet.