Dear @anon80405655
I am not a e/OS user but I am stepping in to clarify possible misunderstandings.
From what I understood, you purchased FP6 and tried to transfer data from your Iphone to FP6 and encountered several difficulties with the transfer (some apps do not work) plus the main challenge was to connect your hearing aids and make them work.
This is the forum for Fairphone users but for software issues with e/OS it is usually recommended to look for assistance at a dedicated e/OS forum. You can also contact Murena directly for assistance.
To me, your case looks pretty specific because of a) a direct transfer from Iphone to e/OS Android can be challenging; b) connecting hearing aids has also proven challenging under specific circumstances
I can only repeat the advice already linked. Please consider asking for assistance at the dedicated Murena forum. Some useful links are given below, you can also create a new topic there.