The unknown string is "COM_TAR2" in all devices I have access to. The
last unknown 4 bytes might be some sort of version, in old devices it
is 0000, in Galaxy S6 0003, in Galaxy S7 and S8 0004 and in Galaxy S9
and tab S6 lite 0005.
The CPU/bootloader string looks something like:
* LSI5410 - Seen in Exynos 5420, 5433 devices (and perhaps others)
* LSI7420 - Seen in Exynos 7420, 8890, 8895 devices (and perhaps others)
* LSI7880 - Seen in a5y17lte (exynos 7880)
* LSI9610 - Seen in gta4xl (exynos 9611)
* LSI9810 - Seen in star2lte (exynos 9810)
* Mx - Seen in Galaxy S3 (device codename is m0/m3)
* MSM8916 - Seen in MSM8916 devices
* MSM8960 - Seen in jflte (and probably in others, jflte has a APQ8064AB CPU)
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