Help/Support sub_xxxxxx does not "Branch and Link" to the specified address

[jayvee 3.4k iPhone SE (2020) 14.4]

I want to Branch and Link from sub_xxxxxx to sub_xxxxxx in IDA. So i computed its hex value using a Branch and Link instruction guide. After computing its hex value i applied the modified hex value but after applying the modified value and went to IDA-view, it branches to loc_xxxxxx instead of sub_xxxxx. Why is it "Branch and Link" to loc_xxxxxx and not sub_xxxxxx?

[Laxus 824.3k iPhone 5s 10.3.3]

Code Caving That is a secret method

[jayvee 3.4k iPhone SE (2020) 14.4]

Code Caving That is a secret method

can you share that method? i need it badly

[Laxus 824.3k iPhone 5s 10.3.3]

Can't cause the author don't want to share it, plus i don't even know how to use it properly

[mehdiphone 7.3k 8 8.1.2]

Can't cause the author don't want to share it, plus i don't even know how to use it properly

Who is the author ?

[jayvee 3.4k iPhone SE (2020) 14.4]

Can't cause the author don't want to share it, plus i don't even know how to use it properly

oh ok. Ill just search online. Thanks

[jayvee 3.4k iPhone SE (2020) 14.4]

Code Caving That is a secret method

ok after searching the net about code caving i found out that code caving is a hacking method. What am i asking above is why does the sub_xxxxxx didnt "branch and link" to sub_xxxxxx but instead it branches to loc_xxxxxx?