ReadyNas 6.2 (NAS locks up entirely)

I have been running fine with my readynas for over a year. I updated the firmware to 6.2 and now it locks up regularly. An unacceptable attribute in a piece of hardware that you are entrusting with your backups of your most valuable data. I spoke with custmer service and they informed me that I must pay to have them help repair the damage that the new firmware caused. I was not willing to pay. I paid the local PC supply house to buy a new external HDD. I backed up everything on my ReadyNAS and restored and reformatted the system and then copied my data back on. It is still failing. When will netgear realize that they have released a faulty firmware and it is destroying the credibility of their products. I need to rely on this machine. Should I revert to 6.1.9? Is that even possible? This is a trainwreck. Of course, if you talk to netgear customer service, it is my fault and therefore i must pay them. Should we not install any firmware updates after the support period has ended? Is that the message I am to receive? I am very dissapointed and would like a fix to this flaw immediately. I have already wasted much of my valuable time and money on this mistake made by Netgears software engineers