Bug #7315


Added by Don Dorward over 1 year ago. Updated 12 months ago.

Status:Closed Start date:11/19/2019
Priority:Normal Due date:
Assignee:- % Done:


Target version:chirp-daily
Chirp Version:daily Platform:Windows
Model affected:QYT KT7900D


Using current build 20191119, won't connect to radio.
First i get the warning message about the experiment driver, then error message "Radio identification failed"


Updated by J N Salt over 1 year ago

Having the same issue, i have updated to 20191123, made no difference. can program other radios with no issue, just the KT-7900D give the error "Radio identification failed"

Updated by J N Salt over 1 year ago

also have tried on a different pc, which has never been used to program before, clean install, same issue

Updated by Groton Ponder over 1 year ago

which is first 3 digits of s/n KT-7900D ?

Updated by J N Salt over 1 year ago

Groton Ponder wrote:

which is first 3 digits of s/n KT-7900D ?


Updated by Don Dorward over 1 year ago

Re: KT-7900D
s/n is 1905260304

Updated by S L over 1 year ago

I have the same issue as well. I got the serial number 190xxxx KT-7900D radio. I successfully programmed the radio using a "USB-SERIAL CH340" cable (needed to downgrade the driver) with the mfg's software, but CHIRP kept giving me the radio ID failed message. I also tried selecting different radios, e.g. various modes of QYT, BTECH, Juentai, Radioddity and WACCOM and they all ran into similar issues.

Sales ads for the radio did advertise it as "2019 Latest Version" for serial#s starting with 190xxxx.

Updated by J N Salt over 1 year ago

just updated to the latest build CHIRP daily-20191206, still no change

Updated by Jim Unroe over 1 year ago

  • Status changed from New to Feedback

Attach a debug.log file.


Updated by J N Salt over 1 year ago

Just Updated to CHIRP daily-20200104, and it is now all functioning, Thanks for your time

Updated by S L about 1 year ago

Download and upload without a hitch. Thank you so much!

Updated by Bernhard Hailer 12 months ago

  • Status changed from Feedback to Closed
  • Target version set to chirp-daily
  • Model affected changed from (All models) to QYT KT7900D

Resolved by a recent build.

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