ToyKeeper,
I think I'm 95% there. After spending all afternoon building a fixture and installing software onto my Lenovo desktop, I'm finally able to "initialize" the D4V2 driver board - which I think means almost everything is working. The commands I'm using are underlined in blue, are they correct? It's my understanding we can ignore the sck error.
But, as you see, there's a signature error which keeps me from actually flashing.
It’s an ATTiny1634 chip, or t1634… not t13 or t85.
What DB Custom said. Replace t13 and t85 with t1634 on both commands and that error will go away.
Thanks, now I'm getting this
It looks like you may need a newer version of avrdude. The one you have appears to be from 2010, and attiny1634 was created in 2011.
I hope there will be a thread just for the instructions and help with flashing of the D4V2. There's no way I'll want to try and sift through this thread for examples and tips after I get my kit from Hank, especially having no clue ATM, on the flashing process.
If there is going to be a specific D4V2 flashing thread, please link to it from this thread. I'm going to need all the tips and detailed instructions I can get, all in one place.
I need a foolproof solution! 
Well this is where I'm stumped, I can't find a version that has t1634 support.
I'm was using version 6.3 from here (which says it's from 2016). Still same error message. Another site said the latest version was here, but that's the one from 2010.
ToyKeeper, do you (or anyone else) have a link to a version of avrdude that's guaranteed to have 1634 support?
Please try this one.
https://drive.google.com/file/d/1XEVlyF9X5atOdHOB9PVObWHJOJ6_dEaq/view?usp=drive_web
command: avrdude -c usbasp -p t1634 -u -Uflash:w:filename.hex
type in command. connect pins to driver pads then press enter to run flashing
connect
Thanks Hank, but . . .
"sorry, the file you have requested does not exist"
There will be definately a specifit D4V2 reflasing thread, including how to use the software and hardware, as soon as the software is installed into your PC, the reflasing process is simple, the whole reflasing process takes about 20 seconds. I hope there will be video to demostrate how to reflash the firmware as well.
As for the price of the reflashing kits, it’s $8.5 including registered shipping for D4V2 owners, while the regular price is $18.5.
Excellent news and thanks for the reply, Hank!
If I remember correctly you said that the kits will be at cost for the first batch of D4V2? Will you have a way to see who ordered from the first batch and sell them at cost or will there be another way? Regardless Im very excited to buy a kit and learn a new skill in the process.
Edit: I have little to no experience with flashing. The only mod I have ever done was removing the orginal bezel of the D4v2 and and adding the stainless steel one. So I guess Im in the same boat as others.
Just sent the file via email
Yes, the regular price is $18.5, the D4V2 owers can buy the kist at $8.5 per one including registered shipping, the cost of the kits is not high, the mian cost is the time to solder the pins onto the pcb precisely, and test them working before shipping.
Basically, all the D4V2 shipped before July, 19 are with muggle mode bug, so, those D4V2 owers can leave their order number and they will buy the kits at $8.5 per one.
Basically, you will see this page when the reflashing process is done.
Never mind, got it (was in spam folder). Thanks, I'll see how it goes.
Come to find out, my AVRdude also doesn’t support the Attiny1634. Terry Oregon, would you be able to make the file available?
I’ve got everything ready, even some .bat files to make the flashing easier. Just waiting on Oshpark to finish making and then ship the keys. Didn’t think this would be an issue.
Hank,
When and how do we begin ordering these flashing kits?
Will you be reaching out via email to everyone with a first batch light, so they will have the first chance to order at the lower price?
(BTW, I have two of these muggle bugged DV2s,and have not yet gotten a email warning me about the problem. I hope that I am the exception.)
