[chirp_users] Recovery

[Dennis Wage]

In other words a total reset will work to restore

On Wed, Aug 21, 2019 at 11:19 Jim Unroe <rock.unroe at gmail.com> wrote:

> > Greetings,
> >
> > I went to the KC9HI CHIRP Recovery site to download the firmware fix for
> my Baofeng UV-5R+, but can’t find it in the listing. Firmware Message 1 is
> HN5RV01 and Firmware Message 2 is 1FB297. I am trying to recover from using
> a file from an older UV-5R.
> >
> >
> >
> >
> >
> > Regards
> >
> >
> >
> > 73
> >
> > Dennis
> >
> > W7DRW
>
> Hi Dennis,
>
> These files are not firmware fixed. The firmware in these radios
> cannot be changed or updated.
>
> Most of the CHIRP images that are available there are factory images
> that the radio owners downloaded while there radios was still in its
> factory delivered state and donated. They are listed by firmware
> version that was in the radio they were downloaded form because the
> memory layouts can vary and it is not a good idea to swap memory
> images between radios having different firmware versions. The firmware
> version was a good way to have CHIRP identify which radio model was
> being programmed and adjust itself to "match" the radio.
>
> Unfortunately the HN5RV01 firmware has been showing up in many various
> models. In addition to that, not of the images that I have seen that
> were downloaded from radios having HN5RV01 always seem to have some
> sort of visible corruption. So I decided not to share any of them
> publicly. Those that I have shared on a one-to-one basis have not been
> successful in "fixing" the issue that the radio owner was having.
>
> The driver for these radios has changed over the years. It has
> eventually been learned which areas of memory can be affected by
> uploading a "foreign" image and these areas of memory are now
> intentionally skipped during the upload process. It is no longer
> possible change these areas of memory so it is not possible to break
> or fix these areas of memory either.
>
> Jim KC9HI
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-- 
Dennis M. Wage (iPhone)

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