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I was charging my Mk.2 everything was normal at the end when finished charging it it does not switch on any more, no orange flach when connected to the usb anymore, it does not give any sign. What can I do ? please help

I tryed the magnet on the back of mk2 I get the orange flash if I keep the magnet and it stop after few seconds I take it off... still it does not switches on

Hi,

In the email you send you also noted you downgraded the firmware to 1.80. Maybe you have installed the OSTC1 firmware accidentally?

Please have a look here: http://www.heinrichsweikamp.com/read.php?2,4071 - Please follow the steps accurately and you'll have the correct firmware installed easily.

Regards,
Matthias

Hi Matthias, I have done it perfectly. In my dive crew we have 12 ostc MK.2 and one Ostc 2N. All of them are upgraded by me. The file I have used for downgrade is mk2_v180_stable.hex
The fact is that The Mk.2 does not give any vital sign.
If you try to switch it on it remain Black and the display does not give any ligth.
If you connect it to a USB port it does not give any charging flashing orange light.
The only light I can get is the orange flashing one when I pass a small magnet on the back of it but then it turn off again and no vital sign can be noted on the Ostc.

> The only light I can get is the orange flashing
> one when I pass a small magnet on the back of it

That's the bootloader which is still alive. Just re-install as described in the link I posted. Instead of resetting with "Reboot OSTC" in the menu, toggle with the magnet.

Regards,
Matthias

Matthias, I have downgraded another mk2 to 1.8 just to check if I was doing right.
It works perfectly and the operation went smooth and easy.

Still the other mk2 does not give any sign, my pc does not recognise it and I cannot write ti flash.

I have just done the downgrade on the second MK2, detached the USB, attached the other MK2, wrote to flash and reset with magnet but the bootloader does not find the PIC.

And as I said before when connected to the USB no charging sign appear.

I have used the Magnet before and the screen used to give a white flash when rebooting, nothing is appearing now.

Do you think it could be a battery damage ?

What are my options to solve the issue ?

Can I send it over in order to let you check it and fix it for me ?

Thanks

You've got mail...

Thanks for your support, everything now is working well.

I have tried with another laptop and with toggling with the magnet and shut down restart several times we sorted out to communicate & install.

Now the Mk2 is operating correctly.

Regards, Bago.