Our litte daughter felt in love pressing the power button on the NAS542. I don't know how many times she did this, but since then the NAS doesn't boot up properly anymore. After some time I hear the harddrives spinning up and suddenly they stop. This repeats infinitly until I cut the power. After contacting the Zyxel Support, I've received the files to create a recovery stick. Unfortunatly this didn't work, so I've created another stick to gain telnet access to the NAS. Based on my investigations, the script is failing on the following command: CURR_BOOTFROM=`${FW_PATH}/sbin/info_printenv curr_bootfrom | awk -F"=" '{print $2}'` When running this command manually, I receive the following error: /firmware/sbin/info_printenv curr_bootfrom envfs: wrong magic on /dev/mtd2 The Zyxel Support told me to send the NAS for repair, but I'm wondering if there's another way to fix this issue. Does someone have a clue?

I had to erase the flash first using: /sbin/flash_erase /dev/mtd2 0 0. Then I've rewritten it using the file you've provided and now /firmware/sbin/info_printenv is finally returning readable output. I'm now looking into updating the firmware to correct the checksums in the env partition. Thanks you very much for your help.