root@420:~/flashrom# ./flashrom -V -p internal
flashrom v0.9.8-r1904 on Linux 4.0.0-kali1-amd64 (x86_64)
flashrom is free software, get the source code at http://www.flashrom.org

flashrom was built with libpci 3.3.1, GCC 4.9.2, little endian
Command line (3 args): ./flashrom -V -p internal
Calibrating delay loop... OS timer resolution is 4 usecs, 1590M loops per second, 10 myus = 9 us, 100 myus = 101 us, 1000 myus = 971 us, 10000 myus = 9834 us, 16 myus = 20 us, OK.
Initializing internal programmer
Found candidate at: 00000500-00000510
Found coreboot table at 0x00000500.
Found candidate at: 00000000-00000b50
Found coreboot table at 0x00000000.
coreboot table found at 0x7ae9d000.
coreboot header(24) checksum: 40ee table(2896) checksum: 21f8 entries: 28
Vendor ID: LENOVO, part ID: ThinkPad T420
Using Internal DMI decoder.
DMI string chassis-type: "Laptop"
Laptop detected via DMI.
DMI string system-manufacturer: "LENOVO"
DMI string system-product-name: "4236MBM"
DMI string system-version: "ThinkPad T420"
DMI string baseboard-manufacturer: "LENOVO"
DMI string baseboard-product-name: "4236MBM"
DMI string baseboard-version: "ThinkPad T420"
========================================================================
WARNING! You seem to be running flashrom on an unsupported laptop.
Laptops, notebooks and netbooks are difficult to support and we
recommend to use the vendor flashing utility. The embedded controller
(EC) in these machines often interacts badly with flashing.
See the manpage and  for details.

If flash is shared with the EC, erase is guaranteed to brick your laptop
and write may brick your laptop.
Read and probe may irritate your EC and cause fan failure, backlight
failure and sudden poweroff.
You have been warned.
========================================================================
Aborting.
Error: Programmer initialization failed.