diff --git a/pkgs/development/mobile/flashtool/default.nix b/pkgs/development/mobile/flashtool/default.nix
deleted file mode 100644
index e00ff3acce02..000000000000
--- a/pkgs/development/mobile/flashtool/default.nix
+++ /dev/null
@@ -1,62 +0,0 @@
-{ stdenv, lib, requireFile, p7zip, jre, libusb1, platform-tools, gtk2, glib, libXtst }:
-
-# TODO:
-#
-#   The FlashTool and FlashToolConsole scripts are messy and should probably we
-#   replaced entirely. All these scripts do is try to guess the environment in
-#   which to run the Java binary (and they guess wrong on NixOS).
-#
-#   The FlashTool scripts run 'chmod' on the binaries installed in the Nix
-#   store. These commands fail, naturally, because the Nix story is (hopefully)
-#   mounted read-only. This doesn't matter, though, because the build
-#   instructions fix the executable bits already.
-
-stdenv.mkDerivation rec {
-  name = "flashtool-0.9.14.0";
-
-  src = requireFile {
-    url = "http://dfiles.eu/files/n8c1c3pgc";
-    name = "flashtool-0.9.14.0-linux.tar.7z";
-    sha256 = "0mfjdjj7clz2dhkg7lzy1m8hk8ngla7zgcryf51aki1gnpbb2zc1";
-  };
-
-  buildInputs = [ p7zip jre ];
-
-  unpackPhase = ''
-    7z e ${src}
-    tar xf ${name}-linux.tar
-    sourceRoot=FlashTool
-  '';
-
-  buildPhase = ''
-    ln -s ${platform-tools}/libexec/android-sdk/platform-tools/adb x10flasher_lib/adb.linux
-    ln -s ${platform-tools}/libexec/android-sdk/platform-tools/fastboot x10flasher_lib/fastboot.linux
-    ln -s ${libusb1.out}/lib/libusb-1.0.so.0 ./x10flasher_lib/linux/lib32/libusbx-1.0.so
-
-    chmod +x x10flasher_lib/unyaffs.linux.x86 x10flasher_lib/bin2elf x10flasher_lib/bin2sin
-    patchelf --set-interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" x10flasher_lib/unyaffs.linux.x86
-    ln -sf unyaffs.linux.x86 x10flasher_lib/unyaffs.linux
-
-    ln -s swt32.jar x10flasher_lib/swtlin/swt.jar
-
-    sed -i \
-      -e 's|$(uname -m)|i686|' \
-      -e 's|export JAVA_HOME=.*|export JAVA_HOME=${jre}|' \
-      -e 's|export LD_LIBRARY_PATH=.*|export LD_LIBRARY_PATH=${lib.makeLibraryPath [ libXtst glib gtk2 ]}:./x10flasher_lib/linux/lib32|' \
-      FlashTool FlashToolConsole
-  '';
-
-  installPhase = ''
-    mkdir -p $out
-    mv * $out/
-  '';
-
-  meta = with lib; {
-    homepage = "http://www.flashtool.net/";
-    description = "S1 flashing software for Sony phones from X10 to Xperia Z Ultra";
-    license = licenses.unfreeRedistributableFirmware;
-    platforms = [ "i686-linux" ];
-    hydraPlatforms = platforms.none;
-    broken = true;
-  };
-}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 0e616c611939..0e5c1b759c67 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -4767,10 +4767,6 @@ in
 
   flamerobin = callPackage ../applications/misc/flamerobin { };
 
-  flashtool = pkgsi686Linux.callPackage ../development/mobile/flashtool {
-    inherit (androidenv.androidPkgs_9_0) platform-tools;
-  };
-
   flashrom = callPackage ../tools/misc/flashrom { };
 
   flent = python3Packages.callPackage ../applications/networking/flent { };