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by James007
Thu Dec 26, 2019 3:43 pm
Forum: Troubleshooting
Topic: Pi4 solid red and green led
Replies: 40
Views: 3487

Re: Pi4 solid red and green led

Indeed there are no 3V3 only 1.83V.
Rpi4183V.jpg
Rpi4183V.jpg (226.14 KiB) Viewed 237 times
I am afraid not to be the same issue with the broken line for the resistor like here:

https://www.raspberrypi.org/forums/view ... n#p1555512
by James007
Thu Dec 26, 2019 2:26 pm
Forum: Troubleshooting
Topic: Pi4 solid red and green led
Replies: 40
Views: 3487

Re: Pi4 solid red and green led

2 of the Pi 4's were DOA with this issue (feint, solid green LED & solid bright red LED) A couple of posters have stated having a feint green LED rather than bright green LED. That's interesting because the LED is wired across 3V3 and 0V switched by a FET controlled by the ACT_CLK line. The most li...
by James007
Thu Dec 26, 2019 2:19 pm
Forum: Troubleshooting
Topic: Pi4 solid red and green led
Replies: 40
Views: 3487

Re: Pi4 solid red and green led

It seems to me that if we want to find out what happens when the "green LED of death" appears, then we need to provide more technical information. For example, the following questions immediately arise. 1. Which memory card was used (and even on which card reader the image is recorded). SanDisk Ult...
by James007
Sun Dec 08, 2019 11:14 am
Forum: Troubleshooting
Topic: Pi4 solid red and green led
Replies: 40
Views: 3487

Re: Pi4 solid red and green led

I've checked the current and its 100mA so the RPi4 is dead. I've checked and there are more and more RPi4 with 4GB and 2GB that are having this issue.

Any other advice ?
by James007
Sat Dec 07, 2019 8:22 pm
Forum: Troubleshooting
Topic: Pi4 solid red and green led
Replies: 40
Views: 3487

Re: Pi4 solid red and green led

I've connected a serial 2 usb convertor and as I've anticipated there is no serial output or any activity during the boot since the issue is behind the point where the eeprom is even read.

Any suggestions are welcome.
by James007
Sat Dec 07, 2019 8:00 pm
Forum: Troubleshooting
Topic: Pi4 solid red and green led
Replies: 40
Views: 3487

Re: Pi4 solid red and green led

Do you get any output on the display ? If you have a UART then that might help https://www.raspberrypi.org/documentation/configuration/uart.md I have the same issue, the fist 2 rpi4 out of 8 is dead, red and green leds are solid with or without the card. The EEPROM solution was not working since th...

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