A recent Heimdall reborn ?
on some recent devices, the old 1.4.2 version was nomore efficient…
.
here is an active fork currently 2.1.0 version
https://git.sr.ht/~grimler/Heimdall
.
here you can find heimdall v2.1.0 binaries i builded for ubuntu
(debian based, should work for other disto)
https://sourceforge.net/projects/custom-android-builds/files/tools/heimdall/