No, there isn't a fix. Chalk it up to a bad experience and remember it when you buy your next device. Besides, there have been so many more advanced devices released in the past year. You can do so much better than the SVD at a lower cost. That goes for anything innokin sells.

I've noticed that! In eager anticipation of the arrival of my first SVD (just made it into the US from China! Yaaaaay!), I've gone to Innokin and downloaded the manual. I couldn't believe my eyes when I read that! I think that what it really is, is a incorrect translation and choice of where which word goes in the sentence. I don't know... but it is totally incorrect in how it reads:

Quote from the manual - which tells you to install the battery backwards:

We can agree to disagree about this.
Sure, there can be issues with anything put into mass production. Sheet happens. But Innokin is one of those companies that offers a very high quality product at a great deal. True, the SVD has been surpassed in technology some time ago. I'm hoping that mine lasts longer than four months. My two Cool Fire 1, non-adjustable 8.5 Watt regulated devices from Innokin are fantastic! Once in a while I want a little more push, so I'm finally getting my beloved SVD. I like the low-tech of it all, and I love the somewhat steampunk/lightsaber look to it. So far, I'm not looking for a how mess of options from my device - I just want it to work. It has been my experience from my own stuff and from others, that Innokin is quite a trustworthy company and their devices are very solid and well built.

Not sure if we get the Innokin Warranty when buying through Fast Tech - the manual says that the warranty doesn't cover products sold via third-party vendors. I don't think that this is the case, so you could likely contact Innokin.

My brother had an issue with one of his 134 minis just before the warranty was up and Innokin sent him the replacement part - the whole control head.

Perhaps this might help your symptoms:
Hold the fire button for five seconds to release the capacity in the mainboard.

If we ever run an SVD in single battery formation and then switch to running two 18350s, we need to do this before continuing to use the device. Here's what the manual says about it... pretty much the same thing I said:

Even if you haven't tried running two batteries, perhaps something else happened that could be remedied by clearing the capacity from the MB? Perhaps?