OpenWrt One - Setup, Install, and Discussion

Installing and Using OpenWrt
184

I got one (hence the delay with answering) and it does not help. No diods light up. I have not tried connecting serial cable, does it start emitting anything before the diods do? It does seem dead as a brick :-(. But can a strong USB PD charger do this? I have used it quite a lop with a small laptop and there has never been an issue.

185

Probably worth asking @M10 and @ardiehl as they have done things with the USB C power like powered by 12v without issue.

I can't see how your GAN fast charger could brick it.

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186

As for now i have bpi r4 powered by poe+ to 12V adapter... one of mine bpi r4 died after power cycle powered by lenovo 65W usb-c brick from my thinkpads. two other bpi r4 powered by normal dc jsck works like a charm since one year almost... i don't plan to buy openwrt one because i have no use for it.

187

Do you know if these implement PD specification or not? I aslo have one and it lists 5V at 3A, but nothing about PD and says "for Lenovo only", which I think is just trying to avoid liability. However, BPI R4 are supposed to accept 2V/5.2A or 19V/3.2A, which is a lot more than OpenWRT one.

188

So I tried with serial cable connected and this is what I get (only when also powered on with USB PD or POE):

�������H���������?��������1�����-�������-�������
���������������@������ x����������@��?�� ��#����?�� D�����!������������
                                                 ����!�������������!@��P����P�@��'������@���@������ @��������������

Can I claim warranty on this or should I just throw it away? I am not sure what entity is manufacturing the device and also if this is a user mistake or not. I would normally think that a standard off-the-shelf USB-C charger should not manage to brick the device.

189

I can not say, but maybe @blogic might have some relevant information?

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190

the device requires 15V USB-PD. also it looks like the serial is outputing data but at the wrong baud rate. what rate did you set ?

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191

I was about to mention this. It looks like a lot of people are trying to use power supplies with the wrong spec.

192

It’s been noted clearly in the wiki as well as in this thread among others: OpenWrt One - Setup, Install, and Discussion - #172 by RuralRoots

I’d say the issue is more a misunderstanding of the process on power up of a PD power supply prior to boot.