Bug #9904

Radioddity QB25 Radio Identification Failed

Added by John Reardon 6 months ago. Updated 6 months ago.

Status:Closed Start date:06/06/2022
Priority:Normal Due date:
Assignee:Jim Unroe % Done:


Target version:chirp-daily
Chirp Version:daily Platform:All
Model affected:QB25


This is my newest QB25 which I received last week. I had previously programmed by old QB25 without issue, but this one is not recognized by the Chirp software.
OEM programming software runs fine.
Running CHIRP daily-20220604.
I investigated the wiki and found several other postings of the same issue. Bug 9687 for instance.
I downloaded module btech_vc9204.py and loaded it in developer mode. This was a previous fix for 9687.
I get "Unable to load module: invalid syntax (btech_vc9204.py, line 1)"

btech_vc9204.py (1.1 MB) John Reardon, 06/06/2022 08:59 pm

debug.log (42.9 kB) John Reardon, 06/06/2022 08:59 pm

btech_vc9214.py (169 kB) Jim Unroe, 06/06/2022 09:56 pm

Associated revisions

Revision 3695:afdda122cebb
Added by Jim Unroe 6 months ago

[QB25] Add additional MCU Version for Radioddity QB25

This patch adds an additional MCU version (VC9214) for the
Radioddity QB25 (QYT KT7900D variant).

Fixes #9904


Updated by John Reardon 6 months ago

Running today's daily update produces "Radio Identification Failed"

Updated by Jim Unroe 6 months ago

  • File btech_vc9214.py added
  • Status changed from New to In Progress
  • Assignee set to Jim Unroe
  • Model affected changed from (All models) to QB25
  • Platform changed from Windows to All

Hi John,

Your Radioddity QB25 has an MCU version (VC9214) that is unknown to CHIRP. Test the attached draft driver module (btech_vc9214.py) and let me know if it works or not. If all is well, I will add it once I can work it into my schedule. In the mean time, continue to use the draft driver module.


Updated by John Reardon 6 months ago

Hi Jim,
I loaded btech_vc9214.py under in developer mode. It worked well.
Thank you.
John W9YOU

Updated by Jim Unroe 6 months ago

  • Status changed from In Progress to Resolved
  • % Done changed from 0 to 100

Patch submitted. Support for the additional MCU version will be in the next CHIRP daily build following acceptance.


Updated by Anonymous 6 months ago

  • Status changed from Resolved to Closed

Applied in changeset afdda122cebb.

Updated by Jim Unroe 6 months ago

Support should be in tomorrow's CHIRP build (CHIRP daily-20220613).


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