# heimdall flash --BOOT /tmp/postmarketOS-export/boot.img --SYSTEM /tmp/postmarketOS-export/samsung-a6lte.img --no-reboot --verbose
Heimdall v2.2.2

Copyright (c) 2010-2017 Benjamin Dobell, Glass Echidna https://glassechidna.com.au
Copyright (c) 2021-2024 Henrik Grimler
This software is provided free of charge. Copying and redistribution is encouraged.

Initialising connection...
Detecting device...
      Manufacturer: "SAMSUNG"
           Product: "Gadget Serial"

            length: 18
      device class: 2
               S/N: 0
           VID:PID: 04E8:685D
         bcdDevice: 021B
   iMan:iProd:iSer: 1:2:0
          nb confs: 1

interface[0].altsetting[0]: num endpoints = 1
   Class.SubClass.Protocol: 02.02.01
       endpoint[0].address: 83
           max packet size: 0010
          polling interval: 09

interface[1].altsetting[0]: num endpoints = 2
   Class.SubClass.Protocol: 0A.00.00
       endpoint[0].address: 81
           max packet size: 0200
          polling interval: 00
       endpoint[1].address: 02
           max packet size: 0200
          polling interval: 00
Claiming interface...
Initialising protocol...
Linux distro ID: arch
Protocol initialisation successful.

Beginning session...

Some devices may take up to 2 minutes to respond.
Please be patient!

Session begun.

Downloading device's PIT file...
WARNING: Empty bulk transfer after receiving packet failed. Continuing anyway...
PIT file download successful.

Uploading BOOT
0%
3%

7%

10%

14%

17%

21%

25%

28%

32%

35%

39%

42%

46%

50%

53%

57%

60%

64%

67%

71%

75%

78%

82%

85%

89%

92%

96%

100%
BOOT upload successful

Uploading SYSTEM
0%
1%

2%

3%

4%

5%

6%

7%
ERROR: Failed to unpack received packet.

ERROR: Failed to confirm end of file transfer sequence!
ERROR: SYSTEM upload failed!

Ending session...
ERROR: libusb error -7 whilst sending bulk transfer. Retrying...
ERROR: libusb error -7 whilst sending bulk transfer. Retrying...
ERROR: libusb error -7 whilst sending bulk transfer. Retrying...
ERROR: libusb error -7 whilst sending bulk transfer. Retrying...
ERROR: libusb error -7 whilst sending bulk transfer. Retrying...
ERROR: libusb error -7 whilst sending bulk transfer.
ERROR: Failed to send end session packet!
Releasing device interface...