Download- Byhss Ly Tyz Mhjbt Msryt Fy Alatwbys... «UPDATED · Guide»

It looks like you’ve provided the start of a phrase that seems to be encoded, possibly with a simple shift cipher (like Caesar cipher).

But your example “alatwbys” = “bus” in Arabic pronounced “otobees” — so if we shift backward 1: “zksvaxr” no. Maybe it’s a Caesar shift of +1 on English letters that represent Arabic sounds: Download- byhss ly tyz mhjbt msryt fy alatwbys...

Given the complexity, I’ll guess the puzzle’s completion is likely: It looks like you’ve provided the start of

Let’s try on “ly” = “my” (l→m, y→z: “mz” no). Let’s test Atbash on “byhss”: b (2nd letter)

Let’s test Atbash on “byhss”: b (2nd letter) ↔ y (25th) y (25th) ↔ b (2nd) h (8th) ↔ s (19th) s (19th) ↔ h (8th) s (19th) ↔ h (8th) Result: “ybshh” — not a word.

But maybe it's Atbash (A↔Z, B↔Y, etc.)?

Given the lack of clear solution in 1 minute, a likely intended completion could be: