Restoring the original QNAP firmware

If you want to restore the original QNAP firmware on your TS-410, TS-410U, TS-412, TS-419P, TS-419P+ or TS-419U for some reason, you can follow the instructions below. Please note that this will only work if your Debian system is still working. If your Debian system is broken but the machine itself works, you can use the recovery mode to restore the QNAP firmware.

There are two steps to restore the original QNAP firware. First, you have to put the backup of the flash partitions from the QNAP firmware you made before the installation of Debian into flash.

cat mtd1 > /dev/mtdblock1
cat mtd2 > /dev/mtdblock2

Second, you have to restart your QNAP, and then go to the web interface to format your disk and install the full QNAP firmware.

After you put the QNAP firmware back in flash and installed the complete the QNAP software, your device will run the original software from QNAP again.