Kenwood NX210 Bricked?

[XVCham]

Alright so a weird one for you all, I will start from the top from when the problem started.
I wrote my programming file onto the radio, radio worked fine and I was scrolling through my menu options.
All of a sudden the entire lcd goes black and now it's been stuck like this.

Here are list of symptoms:
- Radio LCD goes dark upon power on
- Radio LCD darkness disappears slowly upon power off
- Radio buttons do not function despite power being on
- Radio plays power on tone but nothing else
- Radio is not recognized by the kpg111D I'm using (version 5.21, confirmed that it wasn't kpg issue), can't read or write or enter test mode (shows "Check all connections and COM port settings" despite being on correct com port).

Here are what I tried:
- Flashing the radio with firmware version 5.22.00, the radio is able to enter both firmware version display and firmware update baud rate display, also shows battery diagram.

I can post pictures but it's literally just Nx210 with black display

More info:

Model: NX210 - K2
CPS: KPG-111D version 5.21
Firmware: went from 2.02.00 (something like that) to 5.22.00 (someone has already confirmed that the firmware version works with my version of kpg)

As of right now, I've pulled it "out of service" (really for volunteer stuff) and set aside, just looking for answers.

 

[Josh]

They may have rolled the NX210 into it more recently, but to the best of my knowledge KPG-111D is not compatible with the NX210. I have version 5.00 and the splash screen does not show NX210. Could the issue be improper firmware and software?

 

[EWC_BDN]

They may have rolled the NX210 into it more recently, but to the best of my knowledge KPG-111D is not compatible with the NX210. I have version 5.00 and the splash screen does not show NX210. Could the issue be improper firmware and software?

It's the right software. A NX210 is a NX200 with big buttons. uses the same firmware and everything. Programmed many of them with KPG-111d. Looks like OP has programmed this very radio with it.

I think they just left it out of the splash screen. The NX210 was for railroad workers. The NX200 has awful buttons the people who use DTMF need bigger ones. It uses TK-2180 Batteries I think too.

For OP. I think maybe a loose cable inside the radio? Are you positive that your version of KPG will read a firmware that new? To me, when the version number of the radio was higher than the Software. it was a automatic no for it working, or at least it got my attention to check. Your firmware matches your region for sure too?

 

[fire_master_21]

Firmware 5.36, checksum 9965 - released 1-10-23

KPG-111 V5.30 released 2-3-21

Might be worth a shot, if its already broken you can't break it.

 

[XVCham]

UPDATE: I FIXED IT WHOO HOOOOO
After several hours of head scratching, I decided to flash the radio with the firmware one more time.
The issue persisted, however I decided to just try to program the radio while holing P1 button so it's displaying firmware version but not the "black screen of death" (I'm gonna call it that).
KPG 111D was able to read the radio, I was genuinely shocked at that point and crossing my fingers I pressed write.... It worked
The radio is back to normal, thanks to everyone who helped!!! <3

 

[EWC_BDN]

Kenwood used to recommend that the radios should be in service with "firmware programming" box unchecked. Only having the radios with firmware programming mode turned on when you were about to update the radio. then disable it after.

Personally i never saw any issues when it was left on, but Kenwood was saying to not do that.

 

[n3obl]

Which version did you flash it with. The latest firmware?

 

[XVCham]

Which version did you flash it with. The latest firmware?

Firmware: went from 2.02.00 (something like that) to 5.22.00 (someone has already confirmed that the firmware version works with my version of kpg)

^
PS: I still have wideband capabilities using KPG-111D

 

[EWC_BDN]

Kenwood only restricted that on new software. Was it a requirement? because I think only MOT and Vertex did anything to lock you out. Vertex checking your PC's date to see if Narrow is allowed still is my favorite method.

In Canada we just set out dates to 2012 and we will good to go.