CPS partial restores of Flash memory

VK3KYY
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CPS partial restores of Flash memory

Post by VK3KYY » Sat Jun 06, 2020 5:58 am

Because people are failing to backup Flash and EEPROM memory after installing the firmware, and then getting the LOW BT VERSION error when they reinstall some versions of the official firmware.

I've had to update the CPS to allow these people to restore just the lower 64k of Flash memory, so that the Hardware Version data is restored.

See

https://github.com/rogerclarkmelbourne/ ... /R20200606

I've also had to upload my backups for the GD-77, DM-1801 and RD-5R to here.

https://github.com/rogerclarkmelbourne/ ... er/backups

Use the partial backups of "Flash_lower_64k" Not the full flash backup, as this will overwrite your individual calibration data

i.e
DM-1801 https://github.com/rogerclarkmelbourne/ ... er_64k.bin
GD-77 https://github.com/rogerclarkmelbourne/ ... er_64k.bin
RD-5R https://github.com/rogerclarkmelbourne/ ... er_64k.bin


But before you restore. Please backup your EEPROM and Flash and the MCU and save the files somewhere safe

Torax
Posts: 21
Joined: Fri Apr 30, 2021 11:44 am

Re: CPS partial restores of Flash memory

Post by Torax » Mon May 17, 2021 12:07 pm

today wanted to try the file "Flash_lower_64k.bin file" to transfer with cps software

do I have to flash under eeprom restore or flash restore?

i think flash restore is correct or not?

VK3KYY
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Re: CPS partial restores of Flash memory

Post by VK3KYY » Mon May 17, 2021 9:17 pm

Try restoring the flash first

If it still does not work then restore the EEPROM

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

Re: CPS partial restores of Flash memory

Post by Torax » Wed May 19, 2021 7:31 am

want to give feedback :D

everything worked (special thanks go to VK3KYY) 8-)

VK3KYY
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Re: CPS partial restores of Flash memory

Post by VK3KYY » Wed May 19, 2021 9:51 pm

Excellent

xaviernj
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Re: CPS partial restores of Flash memory

Post by xaviernj » Thu May 20, 2021 8:38 pm

Roger, your links are all broken

VK3KYY
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Re: CPS partial restores of Flash memory

Post by VK3KYY » Thu May 20, 2021 9:32 pm


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

Re: CPS partial restores of Flash memory

Post by Torax » Sun May 23, 2021 2:21 pm

unfortunately, I have to report that the second device does not work

the message comes low bt version

It was about the language encryption that I urgently need for the security service

and why the encryption only works with version 2.1.9 and not with 2.2.5 is a mystery to me

getting the firmware 2.2.5 on the device is not a problem, but version 2.1.9 does not work on my other device

I think the problem can be found in the bootloader or mcu rom ??

VK3KYY
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Re: CPS partial restores of Flash memory

Post by VK3KYY » Sun May 23, 2021 11:36 pm

Torax wrote:
Sun May 23, 2021 2:21 pm
unfortunately, I have to report that the second device does not work

the message comes low bt version

It was about the language encryption that I urgently need for the security service

and why the encryption only works with version 2.1.9 and not with 2.2.5 is a mystery to me

getting the firmware 2.2.5 on the device is not a problem, but version 2.1.9 does not work on my other device

I think the problem can be found in the bootloader or mcu rom ??

I just had a look at the backup data taken from my radio, and it begins with this

Code: Select all

Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F

00000000  42 46 3A 42 46 31 38 30 31 5F 56 32 2E 31 00 00  BF:BF1801_V2.1..
00000010  52 4F 4D 3A 57 32 35 51 31 36 2D 32 4D 42 00 00  ROM:W25Q16-2MB..

Download HXD

https://mh-nexus.de/en/hxd/

Open the flash backup file

Change that version text to

2.2 instead of 2.1

Save the file under a different name

Re:Install the opengd77

restore that updated file

Re-install the version 2.2.5 into the radio and see if that fixes it


BTW. This is precisely why the User Guide tells everyone to backup their Flash and EEPROM files after installing the OpenGD77 firmware

https://github.com/LibreDMR/OpenGD77_Us ... thing-else

Torax
Posts: 21
Joined: Fri Apr 30, 2021 11:44 am

Re: CPS partial restores of Flash memory

Post by Torax » Mon May 24, 2021 10:56 am

right at the beginning after the installation of open gd firmware i made a backup


I uploaded the backups (you can have a look at them if you want)



I'll try the thing with the hex editor (I have experience with hex editors

Backup DM 1801 :

https://www.upload.ee/files/13170857/Ba ... 1.zip.html

Zip File !!!!!

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