Keyboard doesn't work in Bootmapper Client/Can't upload firmware

[ScottMember]

I finished my keyboard build, but when I plug it into my computer, Windows makes the noise that something was connected, but Bootmapper doesn’t automatically open. I can’t upload firmware either and I get this error when I select the .hex file:

I’m not sure what to do beyond that. Also, in the device manager in Windows, it says “Device descriptor request failed”. I’ve tried to uninstall and plug the keyboard back in, but I get the same error every time.

 

Any help would be great.

Thank you.

• This topic was modified 8 years ago by  Scott.

[ScottMember]

I believe the problem is that my computer doesn’t recognize the device; i.e. the “Device Descriptor Request Failed” error. If that’s the case, what would cause that to happen? I’ve tried removing and replugging the keyboard, but it doesn’t work.

[flashteker@gmail.comMember]

Hi

Sorry for your inconvenience.

There are a few of reasons that make your problem.

1. Bad soldering of controller parts

2. Wrong firmware
Firmware is “ps2avrGB_NKRO.hex”, not the ones starting with “keymap_xxx”.
(For details, see http://blog.winkeyless.kr/183 )

Could you tell me your order number?

And could you show me your PCB showing soldered parts?

Thanks
Hojin.Yi

[ScottMember]

 

My order number is: W5160

 

I had to fix the solder on two of the controller parts (I ordered the controller parts pre-soldered), but when I fixed them, it didn’t fix the problem and my computer still doesn’t recognize the keyboard.

• This reply was modified 8 years ago by  Scott.
• This reply was modified 8 years ago by  Scott.

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[ScottMember]

I was having problems with the keyboard even working at all/Windows recognizing that something was plugged in. Eventually it connects, but still says that it can’t identify the keyboard at all.

I did fix the solder on a couple of the controller parts that was messed up (in the picture above). And it didn’t fix the problem.

• This reply was modified 8 years ago by  Scott.

[flashteker@gmail.comMember]

Um…

I can’t exactly tell what parts are bad from your pic.

But…

Please check the soldered parts especially R2 and R3.
Please clean the pcb with flux.

And check the polarity(direction) of diodes.

Thanks.
Hojin.Yi

[ScottMember]

Do I need to do anything to this area (circled in red) on the PCB? Do I have to solder any diodes to this part?

 

• This reply was modified 7 years, 12 months ago by  Scott.

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[flashteker@gmail.comMember]

Hi

No. You don’t have to solder anything.

It is just symbol (so doesn’t affect any functionality.)

Thanks.
Hojin.Yi

[ScottMember]

Okay. Because other than that, I can’t seem to figure out what’s wrong with the keyboard. It’s still not recognized by windows. I checked the controller parts and the diodes and I can’t seem to find the problem.

Thank you very much for your help.

[flashteker@gmail.comMember]

Um…

I think it’s best to send it to me to fix it.

There is no extra charge for repair.

But you should pay for the delivery fee.

 

1. your home -> a delivery office in USA (you’ll pay)

2. the delivery office -> my office (I’ll pay)

3. my office -> your home(you’ll pay)

What do you think about it?

Thanks.
Hojin.Yi

[ScottMember]

How much does shipping usually cost? If it’s not too much I think that would be a good idea.

[flashteker@gmail.comMember]

Um…

You should pay for the fee of No.3(my office -> your home).
If you can send to me only PCB, it is $24.
(If you want K-packet, it would be $14)

1. your home -> a delivery office in USA (You directly pay )

2. the delivery office -> my office (I’ll pay)

3. my office -> your home($24)

Thanks.
Hojin.Yi

[ScottMember]

I realized that I didn’t use all the diodes; I have one diode left. Is it extra, or did I miss a spot?

[flashteker@gmail.comMember]

Diodes are used for switches.

I don’t think it is the reason for the problem.

[ScottMember]

Yah, that’s true.

I guess I’ll have to send it back to you when I can.

Thanks again.

[Author]

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