@JP-Norair Tell us more details about your issues please:
Newer builds (than Omega 2+ b202 fw binary) simply don't work with UART over ttyS0
Onion Omega images (Software Repos) on 2020-01-24:
- Omega the "original"
- Omega2 up to v0.2.2-b202
- newer than Omega2 v0.2.2-b202