Screen display inversion

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BH4JBV
Posts: 5
Joined: Thu Jun 10, 2021 10:12 am

Screen display inversion

Post by BH4JBV » Tue Apr 25, 2023 6:17 am

New machine installation the 2023-04-23 openDM1701.bin,Screen display inversion,How can solve it。
Thanks

BH4JBV
Posts: 5
Joined: Thu Jun 10, 2021 10:12 am

Re: Screen display inversion

Post by BH4JBV » Tue Apr 25, 2023 6:31 am

Upload images to http://bh4jbv.site/1701/

VK3KYY
Posts: 7489
Joined: Sat Nov 16, 2019 3:25 am
Location: Melbourne, Australia

Re: Screen display inversion

Post by VK3KYY » Tue Apr 25, 2023 6:45 am

Interesting..

The Flash memory 'security register', address 0x301D, contains the display type for the MD-UV380 and MD-380

However, probably Baofeng don't use this memory and contains some random data.

I will need to do some test to see what value is in this address in my DM-1701 and use that value for all DM-1701

VK3KYY
Posts: 7489
Joined: Sat Nov 16, 2019 3:25 am
Location: Melbourne, Australia

Re: Screen display inversion

Post by VK3KYY » Tue Apr 25, 2023 7:24 am

Please try this version

downloads/MDUV380_DM1701/Firmware/f8b7e ... DM1701.bin

Then tell me if the problem is solved

BH4JBV
Posts: 5
Joined: Thu Jun 10, 2021 10:12 am

Re: Screen display inversion

Post by BH4JBV » Tue Apr 25, 2023 7:49 am

Thank you for your efforts. The problem has been resolved。
One more question,MDUV380 fully charged display 88%。

SA0BUX
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Location: JO99ah, Stockholm, Sweden
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Re: Screen display inversion

Post by SA0BUX » Tue Apr 25, 2023 8:29 am

BH4JBV wrote:
Tue Apr 25, 2023 7:49 am
Thank you for your efforts. The problem has been resolved。
One more question,MDUV380 fully charged display 88%。
You can correct that with "Batt Cal"

https://github.com/LibreDMR/OpenGD77_Us ... d#batt-cal

BH4JBV
Posts: 5
Joined: Thu Jun 10, 2021 10:12 am

Re: Screen display inversion

Post by BH4JBV » Tue Apr 25, 2023 8:37 am

I'll give a try, thank you

VK3KYY
Posts: 7489
Joined: Sat Nov 16, 2019 3:25 am
Location: Melbourne, Australia

Re: Screen display inversion

Post by VK3KYY » Tue Apr 25, 2023 10:49 pm

BH4JBV wrote:
Tue Apr 25, 2023 8:37 am
I'll give a try, thank you
Also. Check the voltage of the battery using a voltmeter / multimeter.

The problem may be the charger is not actually charging to 8.4V

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