--- a/target/linux/ath79/mikrotik/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ath79/mikrotik/base-files/lib/upgrade/platform.sh
@@ -7,7 +7,8 @@
 	return 0
 }
 
-RAMFS_COPY_BIN='yafut'
+RAMFS_COPY_BIN='fw_printenv fw_setenv nandwrite'
+RAMFS_COPY_DATA='/etc/fw_env.config /var/lock/fw_printenv.lock'
 
 platform_do_upgrade_mikrotik_nand() {
 	CI_KERNPART=none
@@ -20,7 +21,8 @@
 	board_dir=${board_dir%/}
 	[ -n "$board_dir" ] || return
 
-	tar xf "$1" ${board_dir}/kernel -O | yafut -d "$fw_mtd" -w -i - -o kernel -m 0755 || return
+	mtd erase kernel
+	tar xf "$1" ${board_dir}/kernel -O | nandwrite -o "$fw_mtd" -
 
 	nand_do_upgrade "$1"
 }
--- a/target/linux/ath79/image/common-mikrotik.mk
+++ b/target/linux/ath79/image/common-mikrotik.mk
@@ -17,9 +17,7 @@
 
 define Device/mikrotik_nand
   $(Device/mikrotik)
-  IMAGE/sysupgrade.bin = append-kernel | sysupgrade-tar | append-metadata
-  DEVICE_COMPAT_MESSAGE := \
-       NAND images switched to yafut. If running older image, reinstall from initramfs.
-  DEVICE_COMPAT_VERSION := 1.1
-
+  IMAGE/sysupgrade.bin = append-kernel | kernel2minor -s 2048 -e -c | \
+        sysupgrade-tar kernel=$$$$@ | append-metadata
+  DEVICE_PACKAGES := nand-utils
 endef