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recovering firmware

Posted: Monday 30. December 2019, 21:20
by Wardy_uk
Hiya

I have a Mk2 with custom firmware on it that replaced the original HW firmware... any help available for reinstalling the v3.13?

tia

Nick

Re: recovering firmware

Posted: Tuesday 31. December 2019, 19:28
by jb2cool
Ah you got Nigel’s off him then.

I think there is a way to do it using the boot loader and a magnet but I don’t know the procedure, hope someone can tell you how to do it.

Re: recovering firmware

Posted: Thursday 2. January 2020, 11:25
by Wardy_uk
Yeah - and just managed to figure it out

Needed the old bootloader!

Now just need to find a new battery that isn't extortionately priced! lol...

Re: recovering firmware

Posted: Sunday 5. January 2020, 15:16
by heinrichsweikamp
It's actually one post above your question: https://forum.heinrichsweikamp.com/view ... f=2&t=4071

There are the links to the required bootloader v1 and the instructions on how to use it.

Regards,
Matthias

Re: recovering firmware

Posted: Monday 6. January 2020, 11:14
by Wardy_uk
Hi Mattias - Id read that, but seemed only applicable to the V2 bootloader...

I did guess that that the V1 was needed and downloaded that off your website and everything was easy and intuitive.

Re. the battery - do you still supply them? They dont appear on your website and the only place I've found selling them in the UK want over £35 which is staggeringly expensive for an 18500 battery...

Re: recovering firmware

Posted: Monday 6. January 2020, 11:32
by heinrichsweikamp
Hi,

It's not only the 18500, it's the assembly with the small protection circuit board at the top. We sell these for 39EUR+shipping. If you still have the old battery, you could probably make this by yourself cheaper.

Regards,
Matthias

Re: recovering firmware

Posted: Monday 6. January 2020, 13:39
by Wardy_uk
I did try that - does the protection circuit also drop the voltage? When I add that onto the new battery I get 3.88v and the mk2 then only powers on when I connect the usb...