diff --git a/app/src/main/java/org/andbootmgr/app/DeviceLogic.kt b/app/src/main/java/org/andbootmgr/app/DeviceLogic.kt
index 7ca93a28..64fbd442 100644
--- a/app/src/main/java/org/andbootmgr/app/DeviceLogic.kt
+++ b/app/src/main/java/org/andbootmgr/app/DeviceLogic.kt
@@ -26,6 +26,8 @@ class DeviceLogic(private val ctx: Context) {
 	val abmDb = File(abmBootset, "db")
 	val abmEntries = File(abmDb, "entries")
 	val abmDbConf = File(abmDb, "db.conf")
+	val lkBackupPrimary = File(fileDir, "backup_lk1.img")
+	val lkBackupSecondary = File(fileDir, "backup_lk.img")
 	var mounted = false
 	fun mountBootset(d: DeviceInfo): Boolean {
 		if (checkMounted()) return true
diff --git a/app/src/main/java/org/andbootmgr/app/DroidBootFlow.kt b/app/src/main/java/org/andbootmgr/app/DroidBootFlow.kt
index a78020a8..a0795d6e 100644
--- a/app/src/main/java/org/andbootmgr/app/DroidBootFlow.kt
+++ b/app/src/main/java/org/andbootmgr/app/DroidBootFlow.kt
@@ -337,11 +337,10 @@ private fun Flash(d: DroidBootFlowDataHolder) {
 		entry.exportToFile(File(vm.logic.abmEntries, "real.conf"))
 		if (!vm.deviceInfo.isBooted(vm.logic)) {
 			terminal.add(vm.activity.getString(R.string.term_flashing_droidboot))
-			val backupLk = File(vm.logic.fileDir, "backup_lk1.img")
 			val f = SuFile.open(vm.deviceInfo.blBlock)
 			if (!f.canWrite())
 				terminal.add(vm.activity.getString(R.string.term_cant_write_bl))
-			vm.copyPriv(SuFileInputStream.open(vm.deviceInfo.blBlock), backupLk)
+			vm.copyPriv(SuFileInputStream.open(vm.deviceInfo.blBlock), vm.logic.lkBackupPrimary)
 			try {
 				vm.copyPriv(vm.chosen["droidboot"]!!.openInputStream(vm), File(vm.deviceInfo.blBlock))
 			} catch (e: IOException) {
@@ -355,6 +354,7 @@ private fun Flash(d: DroidBootFlowDataHolder) {
 			terminal.add(vm.activity.getString(R.string.term_device_setup))
 			vm.logic.runShFileWithArgs(
 				"BOOTED=${vm.deviceInfo.isBooted(vm.logic)} SETUP=true " +
+						"BL_BACKUP=${vm.logic.lkBackupPrimary.absolutePath} " +
 						"${tmpFile!!.absolutePath} real"
 			).to(terminal).exec()
 			tmpFile.delete()
diff --git a/app/src/main/java/org/andbootmgr/app/FixDroidBootFlow.kt b/app/src/main/java/org/andbootmgr/app/FixDroidBootFlow.kt
index e1676b4a..1d48df4f 100644
--- a/app/src/main/java/org/andbootmgr/app/FixDroidBootFlow.kt
+++ b/app/src/main/java/org/andbootmgr/app/FixDroidBootFlow.kt
@@ -68,11 +68,10 @@ private fun Flash(vm: WizardState) {
 			}
 		} else null
 		terminal.add(vm.activity.getString(R.string.term_flashing_droidboot))
-		val backupLk = File(vm.logic.fileDir, "backup_lk.img")
 		val f = SuFile.open(vm.deviceInfo.blBlock)
 		if (!f.canWrite())
 			terminal.add(vm.activity.getString(R.string.term_cant_write_bl))
-		vm.copyPriv(SuFileInputStream.open(vm.deviceInfo.blBlock), backupLk)
+		vm.copyPriv(SuFileInputStream.open(vm.deviceInfo.blBlock), vm.logic.lkBackupSecondary)
 		try {
 			vm.copyPriv(vm.chosen["droidboot"]!!.openInputStream(vm), File(vm.deviceInfo.blBlock))
 		} catch (e: IOException) {
@@ -84,7 +83,8 @@ private fun Flash(vm: WizardState) {
 		if (vm.deviceInfo.postInstallScript) {
 			terminal.add(vm.activity.getString(R.string.term_device_setup))
 			vm.logic.runShFileWithArgs(
-				"BOOTED=${vm.deviceInfo.isBooted(vm.logic)} SETUP=true " +
+				"BOOTED=${vm.deviceInfo.isBooted(vm.logic)} SETUP=false " +
+						"BL_BACKUP=${vm.logic.lkBackupSecondary.absolutePath} " +
 						"${tmpFile!!.absolutePath} real"
 			).to(terminal).exec()
 			tmpFile.delete()