Quoted from SantaEatsCheese:

My issue is not resolved. I would strongly encourage you to open a ticket with CGC. https://chicagogamingcompany.freshdesk.com/support/login
I have an earlier model LE from the original run. Number 260. My machine had the 1.0 code on it and I updated directly to 3.0 but couldn't complete the install. It would get to 8x%, say it failed installation, and then upon reboot said it was updated to 3.0 code. Everything works, but I am unsure if I can upgrade it or not. I have done every bit of troubleshooting I can. Factory reset on machine. Battery out power recycle. Downgrading to the 2.2 code that came with my color chip and then re upgrading to 3.0. Trying the memory card write process on multiple memory cards on multiple computers with different disk imager and SD cards with no difference in outcome.
CGC has been responsive, but their latest step is to mail them the controller board and SD card to use. I have not done so as my machine currently works but was debating sending it to them.
However, if I am not the only person with this issue, it is likely a more systemic problem, at least with some older versions of the machine. If multiple people are having the same issue (we are) that would indicate it is now a "problem" and not an "incident". CGC can't approach the problem as a larger issue unless they know multiple folks are having the same problem so I would point you back to opening a ticket. The more people that open the same type of ticket the more likely it is to be resolved in a timely manner.
Here is what CGC replied to my ticket updates, hopefully these may be your issue and it may fix itself:
1. Is the micro-SD card you're using 8 GB (at least) and class 10 (has 10 inside a C symbol)? The link on our Website is to Amazon.com, and what they put there might not be what you need.
2. Older versions of the software have problems. ​Are you getting your software from the link below? https://www.chicago-gaming.com/coinop/medieval-madness/update/latest
3. Please go to our Website and download the software again. I believe it's been updated since you last downloaded it. Be careful to download it to a location where it can't be confused with your previous downloads, as the file name will be the same.
4. I take it your game has been made unplayable by the attempted software update. If you like, you can send your controller board and SD card to us, and we will do whatever it takes to get it working. You would only pay for shipping, unless we have to replace the Beaglebone. ​Please let me know if you'd like to do this, and I will have an RMA number sent to you.
I would like to emphasize that CGC is helping with this and has been reponsive to my tickets, but it is still not resolved. I hold no ill will towards CGC, am simply trying to pass along what I know and have been told, and have no idea if the upgrades will work with the installation in this state.
Once again as is my machine works 100% and the game as a whole is awesome.

Quoted from CaptainRedEye:

My MMrRe plays great, but there is a "buzz" when the sound is playing. I only have the sound set to 5 or 6. Is this normal? Is there an easy fix?

Quoted from SantaEatsCheese:

Here is the Mantis moat jump install. I didnt feel like I needed both kits but the Mantis protector for this spot protects a wood chipping machine. I have one of the Mantis pieces and here it is. Really don't like the second screw hole on the left. I don't want to drill the top side of my playfield so will leave as is. May glue the head of a screw there so it looks right.

Quoted from KozMckPinball:

That's not the Mantis Moat Jump, it's the Mantis castle protector. The Mantis Moat Jump protects the hole like the Cliffy Moat Jump that complements it.

Quoted from SantaEatsCheese:

Fixed. I call it the moat jump in the video but it's the Mantis Castle protector. The naming convention on these are confusing.

Quoted from bent98:

So if you drill a hole to attach the castle protecter i assume you use a flat headed screw? Do they provide you with that screw or know what size?. By not having a screw in there, does the ball get hung up or divert because of the bevel hole is empty as its missing the screw?

Quoted from bent98:

Are you going to add for MMR SE/RE?

Quoted from CaptainRedEye:

My MMrRe plays great, but there is a "buzz" when the sound is playing. I only have the sound set to 5 or 6. Is this normal? Is there an easy fix?

Quoted from Gumby510:

Anyone know what size the rubbers are above the slingshots on the left and right side. Is it 1.5 and 1in rubber on the right?
Thanks

Quoted from bent98:

https://www.titanpinball.com/kits/index.php/browse/bygame/3056

Quoted from bent98:

So I just got my Mantis full protector set. Through the instructions, Ive identified all parts except for these two. What are they for? Do I need them If I have the cliffys installed?
https://mantispinball.com/wp-content/uploads/installation-mm-protectors.pdf
[quoted image]

Quoted from bent98:

Anyone know?

Quoted from bent98:

Anyone know?

Quoted from Cobray:

Got a question that I could not answer for someone asking me about MM- is there an "Adult Mode" in the new MMr? Has there ever been an adult chip for MM? I have never heard of one.

"I'm Howard Hurtz who the **** are you?" Comes to mind.

Quoted from CaptainRedEye:

My MMrRe plays great, but there is a "buzz" when the sound is playing. I only have the sound set to 5 or 6. Is this normal? Is there an easy fix?

Quoted from KozMckPinball:

Its the Mantis Moat Jump and the Mantis Moat Eject protectors. This information is already here in the thread. There's a video showing the Mantis Moat Jump install and my picture of the installed Mantis Moat Eject. Just read the posts that are already here.

Quoted from bent98:

I assume i dont need them if I have the cliff protector set. correct?

Quoted from KozMckPinball:

I installed the Mantis protector in the castle moat jump hole last night. I have about 750 games on my MMR and could already see some clear cracking and a tiny bit of edge wear on the playfield wood straight back from where the ball enters that castle ball lock entrance. I agree that this is an essential protector for MM/MMR. Lots of disassembly required though, on the underside where the mantis goes, VUK mech has to come off ( 3 wood screws), to get that off, loosen a small circuit board to get the 3rd VUK screw out, have to unscrew 4 wiring harness ties, disconnect 3 wire connectors to FL72, SW37 and SW41 and then remove the moat by taking out 7 screws and disconnecting the moat wire connector. Have to loosen one of the L brackets where one of the wiring harness ties goes in as it interferes with one of the Mantis screws, which there are 3 of in total. Took me all of the late Monday Night football game Broncos/Chargers, I figure 3.5 hours. The Cliffy moat jump protects the same area of wood that Mantis does and also protects the moat plastic itself, which the Mantis does not. I agree that that Cliffy moat jump might not be essential, top dis-assembly seems difficult to get it in anyway. The moat assembly if it gets cracked would cost about $85, but could be replaced.

Quoted from Quint_of_Dust:

The buzz I occasionally hear in my SE is actually the glass sitting in the track and vibrating.

Quoted from bent98:

Can someone tell me what voltage the spotlight LED's are that are on each side of the castle. Does it matter that I have a royal edition which has the RGB GI. Those bulbs look to be 1 color, just white, so I assume they are 6.3V wedge style?

Quoted from Westsiderkg:

About how long is Cliffy behind on shipping for those who recently ordered a set?
In all fairness to Cliff he told me he's backed up, just curious how long others have waited recently? Tks.

Quoted from Westsiderkg:

About how long is Cliffy behind on shipping for those who recently ordered a set?
In all fairness to Cliff he told me he's backed up, just curious how long others have waited recently since he wouldn't commit to a time frame? Tks.

Quoted from izboy:

I just received my Medieval madness MMrREThe speakers on the back box are not playing any sound. It was at first and then just went out. I checked out all the connections and all were fine and none were loose. Music is still playing but only coming from the sub woofer. Please Help!

Quoted from zpinman370:

I have that same kind of buzz or extra base at the end of ball - it is kind of annoying - not sure if same thing though

Quoted from zpinman370:

Just a quick follow up to this post.
Upon further investigation it appears it was more the back glass rattling from the speaker base at the end of ball. I took some black electrical tape and ran two strips along the top and bottom and this made a nice difference on the hum

Quoted from izboy:

I have the same buzz. I am kind of a newbie so please forgive my ignorance. When you said back glass do you mean the image in the back box and if not and you meant the play field glass and you say top and bottom you are referring to the short sides correct?

Quoted from bent98:

I found the post you made., Looks like you the mantis castle moat jump and and the Mantis Moat Eject protectors needed and can work with the cliffy moat jump. You mentioned a video of that install. I couldn't find it.
also, do i need the eject protector or does the cliffy one take its place?
I wish I had a picture of video as it gets confusing as how those mantis work with the cliffy. I want to install but want to make sure i do everything and not have to do extra work.

Quoted from bent98:

I installed the cliffy Merlin protector but the mantis one didn't work out. WTF
I was able to install mantis protector by drilling pilot holes and installed the screws from underneath but the protector mount prevented me from installing the Merlin eject assembly .In the picture (red arrow), the the Merlin assembly mounting holes don't to line up because the mantis plate (yellow arrow) prevents the Merlin asserbmly from going to the far left. If you look at the play field top view (last pic) you see the Merlin black arched metal piece is not centered with the hole but instead, all the way to the left. Is that supposed to be that way?
[quoted image][quoted image][quoted image]

Quoted from KozMckPinball:

The other thing about the Mantis Merlin protector. The scoop hole is round, unlike the castle moat jump hole that is rectangular. Being a round hole, the protector can be rotated 360 degrees, and the position has to be figured out and hole location marked, then drilled. It is not a discrete position like the other protectors and this is important. Find the spot in the Merlin hole by rotating the protector around until it does not interfere with playfield mechs/parts. The Merlin solenoid bracket has to be removed to get the protector in, and you have to be aware that the solenoid bracket sits in a recessed spot in the playfeld, offset to the Merlin hole, when finding the right position for the Mantis Merlin protector. A video would be better for sure, but in my case, I've already done the work long ago. One other important note, the Mantis Merlin if positioned height-wise to the playfield is too high, there will be a lip that causes ball rejects. This can happen if the protector is bent before install.

Quoted from KozMckPinball:

My previous comments, post #6587, about the Merlin actuator bracket...