Can i reinstall the os with an image using ubuntu? without having an sd card?

[fxc]

Everything you write here suggests that your phone is shipped with Tow-Boot pre-installed.
--- I must have been one of the very early ones to receive as I ordered and was shipped at very end of June 2022. Yippie...

Could you please power down the phone, remove the microSD card and then hold VOLUME UP and shortly hold POWER to power on the phone while still holding VOLUME UP? Does it show any LED colors there?

Yep. Done all that. Hold vol+up on attaching USB cable connected to PC, NO-Sd-Card. I get Red Light and short buzz, red light stays on for 5 or so secs, then double short buzz, then Blue Light.

I have lsblk showing
sde                           8:64   1 115.2G  0 disk   
├─sde1                        8:65   1    12M  0 part   
└─sde2                        8:66   1    22M  0 part  
using KDE Partition Manager I see
sde                          UMS Disk 0 - 115.25Gib 
├─sde1                        unknown (type)    partition Label = Firmware (Tow-Boot) 
└─sde2                        ext4 (type)            partition Label = spi-installer

From what I almost remember this is normal. All I have to do is add or install which OS I am interested in...
Yes???
OR
No???

Oh!. To install stuff on SD-Card I use the following in order
1. DD
2. UnetBootin (Linux)

I'm not using that "Balena Etcher" thing website mentioned. So... fxc...  I follow this
https://wiki.pine64.org/wiki/PinePhone_P...o_the_eMMC
yes or no ??
Thanks to FXC. Can I Plus 1 you for your assistance or up armour or something similar?

The vibration and the LED colors are coming from Tow-Boot, so there is already Tow-Boot on the phone installed. That means you don't have to worry about Tow-Boot or the RE button anymore.

On the eMMC it appears that you accidentally wrote the SPI installer image to the eMMC (which should not be done and is definitely a mistake).

The solution for this is to write a disk image to "sde" here, correct. Download an image, extract it from the archive and then flash it using:

Code:

sudo dd if=IMAGE.img of=/dev/sde bs=1M status=progress conv=fsync

In this example replace the "IMAGE.img" with the filename of the image (make sure the image is compatible with the PinePhone Pro and that you extracted it from the archive, check the file extension) and make sure your device is called /dev/sde.