Galaxy S10 bcm4375b1 patch update

[Yev-henii]

Do you have any plans to update the patch for the galaxy s10 on the bcm4375b1 chip? I tried to install nexmon on my device with android 12 on one UI 4.1 but nothing worked. After reading a little on the Internet, I found reviews from people who write that due to the driver update in the kernel from version bcmdhd_101_12 to bcmdhd_101_16 along with the kernel update, nexmon is no longer suitable for these devices and there is no way to roll back the version due to Samsung protection. Perhaps you can suggest some solution?

[Yev-henii]

bcmdhd_sta.bin_b1 Version=18_41_117

[Yev-henii]

bcmdhd_sta_bin_b1.zip

[Yev-henii]

This version is the latest update that arrived over the air for the s10, I think it would be useful for many people since it is difficult to specifically saw outdated versions

[savox-326]

i said that. Not sure about kernel driver version, when i last checked the new bcm binary worked fine with old kernel wifi driver, only thing which noticed was that wifi strength viewer wasn't work, shows always low signal. I guess this patch didn't work initially. I also applied nexmon's patches to new wifi binary, just viewing which on functions/block they did change. Also same behaviour - monitor mode wasn't work correctly. The problem is on patches, i think. Maybe need attach to other function or modify exist ones

[Yev-henii]

Could you please tell me if you are talking about the new firmware version 18_41_113_sta? It is in the firmwares folder along with the definitions.mk file, but there is no patch for it in the patches folder. I want to patch it with the patch from 18_41_8_9_sta by finding and modifying functions in the local_wrapper.c file. I have found almost all the new function names using bindiff in Ida Pro, but now I am facing the issue of not being able to find this function in the 18_41_8_9 firmware to match them:

AT(CHIP_VER_BCM4375b1, FW_VER_18_41_8_9_sta, 0x1FD9BC) int called_by_wlc_ioctl(struct wlc_info *wlc, int cmd, char *arg, int len) RETURN_DUMMY

Have you tried doing this?

Also, I want to eventually try to patch my firmware version 117, but I don’t yet know how to change the values in definitions.mk for it.

I would appreciate any help because I am absolutely far from programming.

[MarkusTieger]

@jlinktu you did commit the firmware for bcm4375b1 version 18.41.113.
I am assuming you have the needed knowledge to help us do the same for the 18.41.117 version?