[Upgrading, Modifying and Unlocking] Elsatests:
I'm stuck after connecting the phone it seems it is somehow detected

First of all, thank you very much for this tutorial!

I have been able to have installed SP Flash tool, loaded the Scatter file and connect the mobile in Fastboot mode. But I wanted to do something "as simple" as a readback and nothing happens.

After the recommendations in the tutorial, I got the messages you indicated in dmesg:

[ 512.650886] usb 1-1.2: new high-speed USB device number 7 using ehci-pci

[ 512.761236] usb 1-1.2: New USB device found, idVendor=2717, idProduct=ff20

[ 512.761241] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3

[ 512.761244] usb 1-1.2: Product: Android

[ 512.761246] usb 1-1.2: Manufacturer: Android

[ 512.761249] usb 1-1.2: SerialNumber: 476681c50204

[ 512.838912] usb-storage 1-1.2:1.0: USB Mass Storage device detected

[ 512.839002] scsi host6: usb-storage 1-1.2:1.0

[ 512.839684] usbcore: registered new interface driver usb-storage

[ 512.859256] usbcore: registered new interface driver uas

[ 513.868085] scsi 6:0:0:0: Direct-Access Linux File-Stor Gadget 0318 PQ: 0 ANSI: 2

[ 513.868837] sd 6:0:0:0: Attached scsi generic sg2 type 0

[ 513.870917] sd 6:0:0:0: [sdb] Attached SCSI removable disk

But when I connect the phone to SP flash which is in "read back mode", nothing happens.

The following messages show what I see and it is what I've seen in the logs too.

Search usb, timeout set as 3600000 ms

add@/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2

add@/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0

add@/module/usb_storage

add@/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host6

add@/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host6/scsi_host/host6

add@/bus/usb/drivers/usb-storage

add@/module/uas

add@/bus/usb/drivers/uas

add@/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host6/target6:0:0

add@/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host6/target6:0:0/6:0:0:0

add@/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host6/target6:0:0/6:0:0:0/scsi_disk/6:0:0:0

add@/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host6/target6:0:0/6:0:0:0/scsi_device/6:0:0:0

add@/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host6/target6:0:0/6:0:0:0/scsi_generic/sg2

add@/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host6/target6:0:0/6:0:0:0/bsg/6:0:0:0

add@/devices/virtual/bdi/8:16

add@/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host6/target6:0:0/6:0:0:0/block/sdb

change@/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host6/target6:0:0/6:0:0:0/block/sdb

remove@/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host6/target6:0:0/6:0:0:0/bsg/6:0:0:0

remove@/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host6/target6:0:0/6:0:0:0/scsi_generic/sg2

remove@/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host6/target6:0:0/6:0:0:0/scsi_device/6:0:0:0

remove@/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host6/target6:0:0/6:0:0:0/scsi_disk/6:0:0:0

remove@/devices/virtual/bdi/8:16

remove@/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host6/target6:0:0/6:0:0:0/block/sdb

remove@/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host6/target6:0:0/6:0:0:0

remove@/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host6/target6:0:0

remove@/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host6/scsi_host/host6

remove@/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/host6

remove@/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0

remove@/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2

add@/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2

add@/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0

Timeout(3600000 ms) for searching USB port!

Can you help me? Why does it not react?

Thank you in advance!