Power light flashes on then nothing
#11
Thank you for being willing to work with me this early morning on this difficulty. i enjoyed helping you try to narrow down what is going on; just a quick update:

It is normal (when the red light goes out on a powerdown) for the PMIC to remove the 3v3 from pin(1) of the PI buss. So, in order to measure the 3v3 on pin(1) you will need to catch it when the power LED is on red.

Honestly, I am 97% sure that if you get the 5v 2.5A version of the power supply you have now, it will boot fine.
marcushh777    Cool

please join us for a chat @  irc.pine64.xyz:6667   or ssl  irc.pine64.xyz:6697

( I regret that I am not able to respond to personal messages;  let's meet on irc! )
#12
(08-05-2016, 02:47 AM)foxy82 Wrote: Hi thanks both for the info.

A picture tells a thousand words (or in this case a video) https://www.youtube.com/watch?v=nTUit2Wfnoo this is the problem shown with no SD card, no monitor, no touch screen, no network connection and no keyboard / mouse, no battery. Just power...

I've never connected anything other than the LCD touchscreen and an SD card to this board. It has never had Keyboard/mouse connected and never had any network connected. Images were burnt with DD in Cygwin and also using Win32DiskImager. However I think that might be a mute point if the power light is meant to remain on when there is no SD card and mine doesn't?

I will try to get on IRC and will consider a serial terminal but I think we are getting beyond what I'd expect to have to do with a brand new board and it does seem that this one might be DOA?

I'm with Mark on this on... I think it's the power supply. You'd be able to tell more if you check the power at the 5v pins of the Raspberry Pi header / Euler DC IN, to see if the board is really getting 5v (or less), or the power supply is some stupid 'green' one that switches off if there isn't a big enough load on it...  And yes, how you did the disk image is a moot point if it will stay on when the USB power is plugged in without a microSD card plugged in Wink Wink 

I just tried mine again (which appears to be the exact same model, but I needed to unplug the wifi module), and it stays on for at least three minutes without the card inserted (and, unsurprisingly, no serial activity), so unless that is unusual behaviour, I'd be blaming the power supply first, and then the board!  Angel
#13
(08-05-2016, 11:07 PM)pfeerick Wrote:
(08-05-2016, 02:47 AM)foxy82 Wrote: Hi thanks both for the info.

A picture tells a thousand words (or in this case a video) https://www.youtube.com/watch?v=nTUit2Wfnoo this is the problem shown with no SD card, no monitor, no touch screen, no network connection and no keyboard / mouse, no battery. Just power...

I've never connected anything other than the LCD touchscreen and an SD card to this board. It has never had Keyboard/mouse connected and never had any network connected. Images were burnt with DD in Cygwin and also using Win32DiskImager. However I think that might be a mute point if the power light is meant to remain on when there is no SD card and mine doesn't?

I will try to get on IRC and will consider a serial terminal but I think we are getting beyond what I'd expect to have to do with a brand new board and it does seem that this one might be DOA?

I'm with Mark on this on... I think it's the power supply. You'd be able to tell more if you check the power at the 5v pins of the Raspberry Pi header / Euler DC IN, to see if the board is really getting 5v (or less), or the power supply is some stupid 'green' one that switches off if there isn't a big enough load on it...  And yes, how you did the disk image is a moot point if it will stay on when the USB power is plugged in without a microSD card plugged in Wink Wink 

I just tried mine again (which appears to be the exact same model, but I needed to unplug the wifi module), and it stays on for at least three minutes without the card inserted (and, unsurprisingly, no serial activity), so unless that is unusual behaviour, I'd be blaming the power supply first, and then the board!  Angel

Hi - I've just tried with the Rasberry Pi 2.5a supply on the 5v I'm getting 5.27v and whilst the red light is on I got 2.99v on the 3.3v. 

So I've now tried 5 power supplies including both the 2.0a and 2.5amp Raspberry Pi ones:

https://www.amazon.co.uk/gp/product/B00M...UTF8&psc=1
https://www.amazon.co.uk/gp/product/B01C...UTF8&psc=1

All produce the same behaviour power light comes on for about 8 seconds and then goes off then nothing...
#14
(08-08-2016, 01:43 AM)foxy82 Wrote:
(08-05-2016, 11:07 PM)pfeerick Wrote:
(08-05-2016, 02:47 AM)foxy82 Wrote: Hi thanks both for the info.

A picture tells a thousand words (or in this case a video) https://www.youtube.com/watch?v=nTUit2Wfnoo this is the problem shown with no SD card, no monitor, no touch screen, no network connection and no keyboard / mouse, no battery. Just power...

I've never connected anything other than the LCD touchscreen and an SD card to this board. It has never had Keyboard/mouse connected and never had any network connected. Images were burnt with DD in Cygwin and also using Win32DiskImager. However I think that might be a mute point if the power light is meant to remain on when there is no SD card and mine doesn't?

I will try to get on IRC and will consider a serial terminal but I think we are getting beyond what I'd expect to have to do with a brand new board and it does seem that this one might be DOA?

I'm with Mark on this on... I think it's the power supply. You'd be able to tell more if you check the power at the 5v pins of the Raspberry Pi header / Euler DC IN, to see if the board is really getting 5v (or less), or the power supply is some stupid 'green' one that switches off if there isn't a big enough load on it...  And yes, how you did the disk image is a moot point if it will stay on when the USB power is plugged in without a microSD card plugged in Wink Wink 

I just tried mine again (which appears to be the exact same model, but I needed to unplug the wifi module), and it stays on for at least three minutes without the card inserted (and, unsurprisingly, no serial activity), so unless that is unusual behaviour, I'd be blaming the power supply first, and then the board!  Angel

Hi - I've just tried with the Rasberry Pi 2.5a supply on the 5v I'm getting 5.27v and whilst the red light is on I got 2.99v on the 3.3v. 

So I've now tried 5 power supplies including both the 2.0a and 2.5amp Raspberry Pi ones:

https://www.amazon.co.uk/gp/product/B00M...UTF8&psc=1
https://www.amazon.co.uk/gp/product/B01C...UTF8&psc=1

All produce the same behaviour power light comes on for about 8 seconds and then goes off then nothing...

Oh booey!  Sad Sad

Unless some else has some more debugging ideas, I'm calling that a DOA pine64. The 5v voltage is more than sufficient (and you're using well spec'ed PSU, so it won't fold on you). You'll need to get in touch with the pine64 guys (trying PMing tllim) and work out how to get a replacement sent out to you.


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