Hi there,
Nice, I most definitely agree. They look to be built from different SDK’s it seems? and no build metadata. probably Seeed’s stock LoRaWAN bootloader that in this version often doesn’t respond to programmatic resets into UF2 unless Seeed implemented the GPREGRET check manually. ?
The othere Clearly built from a newer UF2 bootloader branch, probably from the Adafruit nrf52 fork or Meshtastic’s own fork. YMMV and AI agrees
" Example Reference:
Meshtastic’s fork of the Adafruit UF2 bootloader for T1000-E likely comes from a branch like this:
You’ll notice the same versioning and build signatures as seen in your colleague’s device. The LoRaWAN version is more of a production/stable bootloader and may intentionally omit features like USB DFU or GPREGRET handling.
Great info though 
HTH
GL 
PJ 