```
Found chipset "Intel Broadwell U Premium".
This chipset is marked as untested. If you are using an up-to-date version
of flashrom *and* were (not) able to successfully update your firmware with it,
then please email a report to flashrom@flashrom.org including a verbose (-V) log.
Thank you!
Enabling flash write... Warning: SPI Configuration Lockdown activated.
OK.
Found Programmer flash chip "Opaque flash chip" (8192 kB, Programmer-specific) mapped at physical address 0x0000000000000000.
Reading flash... done.
File ../coreboot-orig.rom is 8388608 bytes
Flash Region 0 (Flash Descriptor): 00000000 - 00000fff
Flash Region 1 (BIOS): 00200000 - 007fffff
Flash Region 2 (Intel ME): 00001000 - 001fffff
Flash Region 3 (GbE): 00fff000 - 00000fff (unused)
Flash Region 4 (Platform Data): 00fff000 - 00000fff (unused)
--2018-07-15 21:53:23-- https://github.com/platomav/CPUMicrocodes/raw/master/Intel/cpu306D4_platC0_ver0000002A_2018-01-18_PRD_CC79BBDA.bin
Resolving github.com (github.com)... 192.30.253.113, 192.30.253.112
Connecting to github.com (github.com)|192.30.253.113|:443... connected.
HTTP request sent, awaiting response... 404 Not Found
2018-07-15 21:53:24 ERROR 404: Not Found.
```
Changing the build script `BDL_UCODE_URL` //from https://github.com/platomav/CPUMicrocodes/raw/master/Intel/cpu306D4_platC0_ver0000002**A_2018-01-18_PRD_CC79BBDA**.bin// to //from https://github.com/platomav/CPUMicrocodes/raw/master/Intel/cpu306D4_platC0_ver0000002**B_2018-03-22_PRD_0B0DD00D**.bin// should make the build script succeed.