issue after upgradin airport express to 7.4.2 - looking for 7.3.2 firmware file (bin)

After upgrading to firmware 7.4.2 from 7.3.2 my Airport Express went bad.

I believed there was something wrong with my Apple softwares, so I uninstalled all airport express, itunes, ... from the PC and reinstall all.

Now I am sure it is because of the firmware, but when I try to upload older firmware, there are no more on my PC and I deeply checked on the Net but find nowhere where I can find a 7.3.2 firmware file.

If someone has it on his PC, please send it to me (can be done through MP or email to mymail94@gmail.com)

Thank you in advance.
Bernard

Thank you, but already tried,

This one is the airport utility version that is compatible with the firmware but does not contain the firmware and therefore do not propose the choice for update / upload /...