Cannot boot my Orange PI Plus2E

Hamulus

I try to boot my Orange PI Plus2E and it always hangs at different stages of boot process.

I monitor boot process via UART.

I never tried to boot this board before.

I tried to use different OS images, different SD cards, I tried to boot without SD card. Every time, even with the same image and the same SD card it hangs at different stages, but about 4th second of boot. I waited 15 minutes maximum and nothing happens.

So if the board would hang at the same boot stage I would write a part of log, but the stages are different each time.

When I try to boot from SD the screen is always black (even if UART is not connected), so I can see all logs only via UART.

When I try to boot from eMMC I see only Allwinner logo at the screen and all boot logs can be viewed  via UART too.

If I press any key to stop autoload, I can interact with the board and it does not hang. It responds for commands entered in terminal. But what can I do in this mode?

I know that it could be power issues, but: I use the cable came with the board

I tried 3 different power adaptors including 2A Samsung and 2.1A Apple. I haven't tried only original 3A adaptor, I just ordered it.

But also I tried powerful 4.5A buck converter with LiIon battery pack (because I need to use the Orange Pi with battery in future) and situation is the same.

Also I tried to power the board using my laboratory power source, the amper indicator shows only 0.5A current only, but nothing changed.

And also I tried to provide double supply: using barrel and gpio connectors simultaneously. I found this advice on armbian forum, it helped that person but haven't helped me.

By the way: I also have Odroid C2 and it works good  from any of these power sources, so I do not believe that Orange PI is so capricious to power

So: what can it be? what additional information from can help you to help me?

Tina

Hi,
It sound like the power supplies are working, you even tried a lab PSU. The only thing i can think of is to check the 5V rail if you haven't done that already (before and after the boot process stops).

Maybe you can post the UART outputs. Do they stop at the same or different stages.

Hamulus

I wrote that boot stops at different stages even with the same boot source (the same SD with same image or with EMMC boot)
people from other forums told me that it is possible broken RAM issue, so i think i can move my board to trash

I will try with another Orange PI Plus2E to check this version

Hamulus

Finally this was the power supply problem: the board works ok with original 3A adapter.