He does not see the device after you try to upload the firmware

[Bigosar]

Hello everyone and I hope that you will help.
Namely, when you try to upload the firmware 1.2.31 by vemstune at the beginning of the installation error occurred and did not finish the installation and the effect is that since then the computer vems is dead. That means when you connect vems to the computer via RS232 vemstune not see the device.
What do I do now for the steps to fix it.

[Kamuto]

it should be in boot mode but not dead

[Bigosar]

boot mode can not enter. By ISP connection processor reads but why not detected by DSUB9. I suppose that deleted the firmware 1.2.11 up because that I had and I wanted to update

[Bigosar]

It is able to help someone. Cable isp sees the ATmega128, a new boot can upload or EEPROM if so, which site is best downloading a page and how best to install.
I apologize in advance for spelling but I'm Polish and I use google translator

[VEMS]

Hello Bigosar,

Please follow the suggestions on: http://www.vems.hu/wiki/index.php?page=GenBoard%2FFirmware%2FBootLoaderLoopback.
Your controller should still have a working boot-loader inside from which you will be able to recover and upload firmware.

Best regards, Dave

[Bigosar]

The problem is that they do not want to enter bootloader mode. I replaced with a new MAX232 and also no reaction.
Only by isp I can communicate

[VEMS]

Hello Bigosar,

In that case you will have to contact Hungary (by email using http://shop.vems.hu/catalog/contact_us.php) they can provide a bootloader restore package for you, make sure to mention: you bootloader problems, your original ecu order id, ecu serial number and the event that proceeded the bootloader corruption as bootloader corruption during firmware upgrade (using VemsTune) is very strange.

Best regards, Dave