You can run a free OS pretty effortless, but when wanting 100% free software, you have to dig deeper and replace the proprietary BIOS firmware.
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Lenovo G505S 16gb RAM - no (the A10-5750M processor has neither Intel ME nor AMD PSP), software probes - too, if instead of the closed UEFI from the manufacturer you install the open source BIOS coreboot+SeaBIOS: it will contain only a few small closed binaries , they were all dismantled and no backdoors were found. Someone made a script in which by rolling back 1% of the last commits (made after deleting the G505S) you can return AMD boards to coreboot - https://review.coreboot.org/c/coreboot/+/76832. You can install the AR9462 module, whose ath9k family WiFi is 100% open source.
Saving this, thanks for sharing!
nice i'll have to try this out, what hardware did you use to flash it?
Try to build Coreboot on Lenovo G505S using the restore_agesa.sh script in conjunction with the csb_patcher script, which applies a group of unofficial patches for AMD platforms