back to dm-1801 firmware

Anything specifically related to the DM-1801 version of the firmware
yd1lff
Posts: 1
Joined: Thu Dec 24, 2020 4:35 am

back to dm-1801 firmware

Post by yd1lff » Thu Dec 24, 2020 4:47 am

hi folks,
i want to reflash my firmware back to dm-1801 original firmware, ussualy i'm using opengd77. Which latest version off dm-1801 firmware now, and where i can download them ? many thanks

VK3KYY
Posts: 7478
Joined: Sat Nov 16, 2019 3:25 am
Location: Melbourne, Australia

Re: back to dm-1801 firmware

Post by VK3KYY » Thu Dec 24, 2020 10:43 am

yd1lff wrote:
Thu Dec 24, 2020 4:47 am
hi folks,
i want to reflash my firmware back to dm-1801 original firmware, ussualy i'm using opengd77. Which latest version off dm-1801 firmware now, and where i can download them ? many thanks
Try Baofeng's website

VK3KYY
Posts: 7478
Joined: Sat Nov 16, 2019 3:25 am
Location: Melbourne, Australia

Re: back to dm-1801 firmware

Post by VK3KYY » Fri Jan 01, 2021 8:15 pm

WojtekMaru wrote:
Fri Jan 01, 2021 4:31 pm
The last version : DM-1801_V2.1.9.sgl
Can you post the URL to download this

ams123
Posts: 5
Joined: Fri Mar 12, 2021 6:13 pm
Location: Amersfoort
Contact:

Re: back to dm-1801 firmware

Post by ams123 » Thu Apr 29, 2021 12:26 pm


Torax
Posts: 28
Joined: Fri Apr 30, 2021 11:44 am

Re: back to dm-1801 firmware

Post by Torax » Fri Apr 30, 2021 11:52 am

if i want to go back to firmware 2.1.9 why do i always get the message after the update `low bt version ?

can I never go back to version 2.1.9? ?

sorry for my bad english (translator) Lol :lol:

has someone found a way to go back to the original firmware 2.1.9?

ams123
Posts: 5
Joined: Fri Mar 12, 2021 6:13 pm
Location: Amersfoort
Contact:

Re: back to dm-1801 firmware

Post by ams123 » Mon May 03, 2021 6:03 pm


Torax
Posts: 28
Joined: Fri Apr 30, 2021 11:44 am

Re: back to dm-1801 firmware

Post by Torax » Tue May 04, 2021 3:25 pm

thank you but unfortunately all links have been deleted :o

VK3KYY
Posts: 7478
Joined: Sat Nov 16, 2019 3:25 am
Location: Melbourne, Australia

Re: back to dm-1801 firmware

Post by VK3KYY » Tue May 04, 2021 9:05 pm


Torax
Posts: 28
Joined: Fri Apr 30, 2021 11:44 am

Re: back to dm-1801 firmware

Post by Torax » Wed May 05, 2021 8:04 am

@VK3KYY thank you for the links

did i understand correctly i only need the cps software for flashing :?:

VK3KYY
Posts: 7478
Joined: Sat Nov 16, 2019 3:25 am
Location: Melbourne, Australia

Re: back to dm-1801 firmware

Post by VK3KYY » Wed May 05, 2021 9:38 pm

The radio needs the open firmware installed. The official firmware does not support backup or restore functions

Then use the opengd77 CP's to restore the eeprom and flash

Then turn off the radio and reinstall the official firmware using the official tools
You also then need to use the official CPS to reload your codeplug

If you made a codeplug using the Opengd77CPS it won't work correctly with the official CPS, because the Opengd77cps has 80 channels per zone , and the official only supports 16

Also the official firmware does not support assigning a TS to a Digital Contact, or Per Channel power or Per Channel squelch etc

Also if you loaded any DMR IDs , that won't work either as the official firmware only supports 8 characters per ID but the Opengd77 supports up to 16 characters per I'd and defaults to 15 characters, hence the DMR ID data will not be recognised by the radio

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