Jailbreak ios 8.4.1 are there any other working ways?

Question

iOS

EtasonJB tried the following methods:
Cydia Impactor (an error pops up, which has not been fixed since 2019)
AltStore (An error code also pops up, I didn’t find an answer on the Internet)
Sideloadly (An error occurred at the unpacking stage, I also didn’t find an answer anywhere)

I tried so- Chinese programs like 3utools, as well as taig2, ppjailbreak, for one reason or another fail to jailbreak.

Maybe someone has recently done JB for this firmware, share your experience?