Author Topic: Bootloader/firmware upgrade / LSU 4.9 support  (Read 2361 times)

Offline Reezus

  • New Users
  • *
  • Posts: 1
  • BHP: 0
Bootloader/firmware upgrade / LSU 4.9 support
« on: April 10, 2020, 11:00:16 am »
Hello, I've got myself a pretty old VEMS v3.3 unit that I'd want to upgrade firmware-wise to use the LSU 4.9 WBO2 sensor. I have already soldered in the 27k resistor for the nernst voltage now it measures around 5v (before it was under 4v) and then I realized my firmware is too old to support it, it has the old type bootloader so I cannot update the firmware past certain version so I'm trying to upgrade it. I have already made myself a BSD cable and reprogrammed the ISP to lock the fuse bit and installed the correct firmware for bootloader upgrade and I only need the password for bootloader upgrade authorization, I have contacted both through the website contact form and sent the email to [email protected] stating my serial number asking for the password request and about a week has passed and I haven't got any word back, do I have to write it in a specific way to get a response or are the offices currently closed because of the coronavirus pandemic? Also speaking of the serial number, if VemsTune says my serial number is SerialNumber: v3.3_n003125 then I have to state that my actual serial number is 3125, the last 4 digits, correct? And if I cannot get the authorization for bootloader upgrade and get the correct newer firmware for whatever reason can I still somehow get the LSU 4.9 to work with the older firmware? Thanks in advance, I hope somebody can help me :)

Offline Kamuto

  • Hero Member
  • *****
  • Posts: 814
  • BHP: 19
Re: Bootloader/firmware upgrade / LSU 4.9 support
« Reply #1 on: April 11, 2020, 10:15:59 pm »
Hello, I've got myself a pretty old VEMS v3.3 unit that I'd want to upgrade firmware-wise to use the LSU 4.9 WBO2 sensor. I have already soldered in the 27k resistor for the nernst voltage now it measures around 5v (before it was under 4v) and then I realized my firmware is too old to support it, it has the old type bootloader so I cannot update the firmware past certain version so I'm trying to upgrade it. I have already made myself a BSD cable and reprogrammed the ISP to lock the fuse bit and installed the correct firmware for bootloader upgrade and I only need the password for bootloader upgrade authorization, I have contacted both through the website contact form and sent the email to [email protected] stating my serial number asking for the password request and about a week has passed and I haven't got any word back, do I have to write it in a specific way to get a response or are the offices currently closed because of the coronavirus pandemic? Also speaking of the serial number, if VemsTune says my serial number is SerialNumber: v3.3_n003125 then I have to state that my actual serial number is 3125, the last 4 digits, correct? And if I cannot get the authorization for bootloader upgrade and get the correct newer firmware for whatever reason can I still somehow get the LSU 4.9 to work with the older firmware? Thanks in advance, I hope somebody can help me :)

write them again, they probably missed it, of find a guy who's a dealer of vems he will help you to sort that ;)
Vems installer in Lithuania
[email protected]