Page 1 of 2 12 LastLast
Results 1 to 10 of 13

Thread: Bootloader Rejected

  1. #1
    New Member
    Join Date
    Apr 2007
    Posts
    6

    Default Bootloader Rejected

    I'm trying to download the stock ECM tune. It starts communicating with the ECM and then I get the following message:

    Preparing ECM for reading flash
    ECM seed is $78D3
    Error
    Disconnecting
    Disconnected

    then a box pops up that says :Error - Bootloader rejected
    Reason - No Reply

    I'm using the latest version of EFI Live.

    Any suggestions?

  2. #2
    EFILive Reseller wait4me's Avatar
    Join Date
    Aug 2004
    Posts
    1,348

    Default

    Did you select the correct pcm type from the drop down menu on the read box? usually it is the cause. If not, let me know and i will help get you figured out.
    "If you can leave a black mark on the pavement, from the exit of one corner to the braking point of the next one, you have enough horsepower."

  3. #3
    New Member
    Join Date
    Apr 2007
    Posts
    6

    Default

    I did that before trying to scan the ECM. I've got a 2004.5 LLY.

    Do I need to disable OnStar? If so, what fuses need to be pulled?
    I've got a Compustar alarm / remote that I don't know how to disable.
    Last edited by KWSUNDELL; April 9th, 2007 at 05:35 AM.

  4. #4
    EFILive Reseller wait4me's Avatar
    Join Date
    Aug 2004
    Posts
    1,348

    Default

    NO when you get onto the Read pcm section, there is a drop down menu you have to select the lly pcm type. Im not talking about the one in the scan tool.
    "If you can leave a black mark on the pavement, from the exit of one corner to the braking point of the next one, you have enough horsepower."

  5. #5
    New Member
    Join Date
    Apr 2007
    Posts
    6

    Default

    I did select the LLY controller type in EFI live. I started originally with version 7.3 and it didn't work at all. When I upgraded to 7.4, It looked like it was going to work, but then gave me the error message.

  6. #6
    EFILive Reseller wait4me's Avatar
    Join Date
    Aug 2004
    Posts
    1,348

    Default

    IF the read screen is like this, and you changed it to say lly and it still dont work..... Do you have an aftermarket radio? If so the box they use on them does not shut off comunication so you need to pull the fuse for it then. Radio fuse under the hood on the drivers side.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	New Bitmap Image.JPG 
Views:	330 
Size:	50.3 KB 
ID:	1489  
    "If you can leave a black mark on the pavement, from the exit of one corner to the braking point of the next one, you have enough horsepower."

  7. #7
    New Member
    Join Date
    Apr 2007
    Posts
    6

    Default

    My screen looks just like that. I have the factory radio so that's not the problem. Perhaps it is the alarm. I've got to figure out how to disable it completely.

  8. #8
    EFILive Reseller wait4me's Avatar
    Join Date
    Aug 2004
    Posts
    1,348

    Default

    What firmware does the V2 have in it? the latest is 55
    "If you can leave a black mark on the pavement, from the exit of one corner to the braking point of the next one, you have enough horsepower."

  9. #9
    New Member
    Join Date
    Apr 2007
    Posts
    6

    Default

    I upgraded it to 55 as soon as I got the unit.

  10. #10
    EFILive Reseller wait4me's Avatar
    Join Date
    Aug 2004
    Posts
    1,348

    Default

    Does the v2 say it is in CAN mode on the screen when it connects to your truck? Does the V2 read the vin?
    "If you can leave a black mark on the pavement, from the exit of one corner to the braking point of the next one, you have enough horsepower."

Page 1 of 2 12 LastLast

Similar Threads

  1. bootloader rejected
    By relentless addiction in forum Duramax LLY
    Replies: 20
    Last Post: May 25th, 2010, 06:26 PM
  2. ls3 bootloader rejected
    By rubbersidedown in forum Gen IV V8 Specific
    Replies: 6
    Last Post: April 13th, 2010, 10:21 AM
  3. Bootloader rejected
    By lilly in forum Duramax LLY
    Replies: 12
    Last Post: June 28th, 2009, 01:48 AM
  4. bootloader rejected
    By dmax687 in forum Duramax LLY
    Replies: 3
    Last Post: November 7th, 2008, 11:43 PM
  5. bootloader rejected PCM locked
    By rubbersidedown in forum Gen III V8 Specific
    Replies: 2
    Last Post: July 30th, 2008, 09:16 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •