Hello, I am having issues with a g&g prk9 and its related to the mosfet. It does a cycle of sometimes firing once, then a two round burst other times and back to once and so on beeping in between trigger pulls. This happens in both semi auto and full auto. I have seen a manual for a g&g mosfet mentioning make sure the battery is charged and also that it may be a sector gear out of place or something like that if the light on the mosfet is on. Also the seller mentioned trying to reset it but I dont know how and I dont have a tool to program it. Would I need a mosfet programming tool to fix this issue? https://imgur.com/a/2TsaZHf I just charged one and it did the same thing. Otherwise id have to take some of the gun apart to take a look at the mosfet. I have essentially no experience working on airsoft gun so im worried ill end up breaking it and it not working once I put it back together. If its too much of a hassle I can always ask the person I bought it for, for a refund on paypal. One more thing thats wrong with it is the battery hatch doesnt wanna latch, unless I fiddle around with it for a minute or so. Something I was not aware of when I bought it, same with this firing issue but this part may be easily fixed idk. I contacted him and he told me to take out the charging rod to see if its bent. I did and it looked very slightly bent at the end. Could this be enough to make the hatch not work properly? Its not a very noticeable bend in the rod. Any advice on what is wrong with it? And should I think about returning it and getting my money back? I feel like I got it for a decent price but I wasn't planning on paying for a misfunctioning battery hatch and possibly mosfet as well.