I’m reaching out because I just received my 2 brand new T-Beam v1.1 433Mhz not soldered OLED (LILYGO® TTGO Meshtastic T Beam V1.1 ESP32 LoRa 433/868/915/923Mhz, WiFi GPS NEO 6M avec affichage OLED pour Arduino | AliExpress).
After installing required USB drivers (GitHub - WCHSoftGroup/ch34xser_macos: MacOS USB driver for USB to serial chip ch340, ch341, ch342, ch343, ch344, ch9101, ch9102, ch9103, etc), I flashed the devices with the latest firmware, using ESP-Flasher (version 1.2.60).
Then, I soldered the OLED displays.
I powered on the devices using USB cable plugged in my computer (no battery).
And… no displays are working…
Where am I wrong?
I don’t know what to do …
Thanks a lot for your insights!