LILYGO® TTGO T-Beam V1.1 433MHz works only in Shortrange/Fast mode

Support
1

Hello,

I bought couple of these:

Flashed 1.3.5 firmware to both. Set up mesthastic app and paired bluetooth on both android phones with screenless pairing mode. Shared QR code. Tried different channel setting but the only one that seems to work as it should is ShortRange/Fast all others never sends/receives a message.

Also tried 1.2.59 I was able to get Longrange/Slow working, but it was kind of not stable/not working as expected: one node was able to send messages, but never receives ack that successfully delivered, other mode fails to send messages at all. Sometimes both nodes are able to send messages but one of them fails to get ack for successfull delivery (even it is received).

Flashed firmwares manually using file firmware-tbeam-1.x.x.e5b19fd.bin because I am on M1 mac and flasher from meshtastic fails to flash firmware.

All the settings are default, didn’t change anything.

What could be the problem? How I can debug it in a more detailed way?

2

1.3 is not ready to use yet and you cant mix 1.3 firmware with 1.2 clients.

3

By saying client, you mean Android Meshtastic app?

4

yes, any client, android app included.