Version 1.0 is buggy. It has the Unlocked Door of Time glitch and the Pocket Egg crash. Save often. Also, on flash carts like the EverDrive, Version 1.0 sometimes requires a specific save type (EEPROM 16KB) to be manually set.
In a world where technology and ancient magic coexisted, a young adventurer named Link stumbled upon a mysterious ROM file labeled "Ocarina Of Time 1.0." The file had been circulating among the gaming community, rumored to hold the secrets of a legendary game. Ocarina Of Time Rom Download 1.0
Reviewing a ROM of The Legend of Zelda: Ocarina of Time (v1.0) Version 1
Search for "Ocarina of Time N64 ROM v1.0 (USA)." on flash carts like the EverDrive