Heltec v3 board stuck in boot loop when connected to an USB power supply

Question

Heltec v3 board stuck in boot loop when connected to an USB power supply

dm5tt opened this issue 10 months ago · comments

Describe the bug
After flashing the latest ARPS iGate firmware to a Heltec v3 AND connecting it to an USB power supply only the boot logo shows up and then reboots after a few seconds.

This NOT happens when connected to a PC.

(Cross-checked this with a Meshtastic. This boots up just fine.)

To Reproduce

Flash latest 'master' firmware
Connect device to a USB power supply
Have a look at the screen and wait for reboot

Expected behavior
Boot up normally

Peter Buchegger · Answer 1 · Tue Sep 19 2023 23:52:51 GMT+0800 (China Standard Time)

did you check the power supply if it is producing the 5v correctly? can you try different power supplies? if it is working when connected to pc it will get very hard to debug.

Holger Adams · Answer 2 · Tue Sep 19 2023 23:54:22 GMT+0800 (China Standard Time)

I checked with three power supplies and several cables. The Meshtastic firmware on that device seems not to cause any problems.

Peter Buchegger · Answer 3 · Tue Sep 19 2023 23:55:18 GMT+0800 (China Standard Time)

thanks for your response! will need to check on my end.

Holger Adams · Answer 4 · Wed Sep 20 2023 00:07:39 GMT+0800 (China Standard Time)

Heltec-Aaron-Lee/WiFi_Kit_series#159 wild guess, might be related

Holger Adams · Answer 5 · Thu Sep 28 2023 20:29:38 GMT+0800 (China Standard Time)

I was able to narrow the problem down: The Heltec v3 is having an incredibly bad Wifi antenna. It was looping during the boot process as it wasn't able to get Wifi on my balcony.