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bri3d / VW_Flash

Flashing tools for VW AG control units over UDS. Compression, encryption, RSA bypass, and checksums are supported for Simos18.1/6/10, DQ250-MQB, DQ381-MQB, and Haldex4Motion-Gen5-MQB.
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Question regarding bootloaders #49

Closed issigg closed 2 years ago

issigg commented 2 years ago

Hello! I am trying to unlock and flash a Simos 18.1 in a Skoda Octavia RS. When ID:ing the ECU I get: VW ECU Hardware Number : 06K907425B VW ECU Hardware Version Number : H13 VW Spare Part Number : 5G0906259 VW Application Software Version Number : 0005 Boot Loader Identification : SC8.1 CB.00.00.80 C02.00 SC8 VW System Name Or Engine Type : 2.0l R4 TFSI Engine Code Letters : CHHB

In the windows.md doc, it says "If your Boot Loader Identification said SC8, you need FL_8V0906259H__0001.frf. If your Boot Loader Identification said SCG, you need FL_5G0906259Q__0005.frf".

However this ECU says it has the SC8 bootloader but different firmware. Which one should I use for unlocking and flashing then?

Thanks lots for this!

bri3d commented 2 years ago

Unlock using FL_8V0906259H0001.frf. But do NOT flash after unlocking using this FRF, use a matching one for your car like 5G09062590005. This is how things are laid out in the documentation. Be very careful not to use Full Flash Unlocked with that first 8V FRF as it will cause an immo lock. Only use Unlock with the 8V FRF.

On Sat, May 14, 2022 at 9:01 AM Isak Sjöbacka @.***> wrote:

Hello! I am trying to unlock and flash a Simos 18.1 in a Skoda Octavia RS. When ID:ing the ECU I get: VW ECU Hardware Number : 06K907425B VW ECU Hardware Version Number : H13 VW Spare Part Number : 5G0906259 VW Application Software Version Number : 0005 Boot Loader Identification : SC8.1 CB.00.00.80 C02.00 SC8 VW System Name Or Engine Type : 2.0l R4 TFSI Engine Code Letters : CHHB

In the windows.md doc, it says "If your Boot Loader Identification said SC8, you need FL_8V0906259H__0001.frf. If your Boot Loader Identification said SCG, you need FL_5G0906259Q__0005.frf".

However this ECU says it has the SC8 bootloader but different firmware. Which one should I use for unlocking and flashing then?

Thanks lots for this!

— Reply to this email directly, view it on GitHub https://github.com/bri3d/VW_Flash/issues/49, or unsubscribe https://github.com/notifications/unsubscribe-auth/AABTO2LFOFBRBLKXRL5CWB3VJ6WZHANCNFSM5V5TOLTQ . You are receiving this because you are subscribed to this thread.Message ID: @.***>

issigg commented 2 years ago

Alright I got you. Didn't make that out of the docs sorry! I guess flashing using a later version such as 5G0906259__0007 would be fine also? Thanks for the answer will try it tonight.

bri3d commented 2 years ago

Yep should be fine! 👍

On Sat, May 14, 2022 at 11:02 AM Isak Sjöbacka @.***> wrote:

Alright I got you. Didn't make that out of the docs sorry! I guess flashing using a later version such as 5G0906259__0007 would be fine also? Thanks for the answer will try it tonight.

— Reply to this email directly, view it on GitHub https://github.com/bri3d/VW_Flash/issues/49#issuecomment-1126743559, or unsubscribe https://github.com/notifications/unsubscribe-auth/AABTO2OSM3ATVYFQOOXILNLVJ7FCDANCNFSM5V5TOLTQ . You are receiving this because you commented.Message ID: @.***>

issigg commented 2 years ago

Worked great. Process didn't take long at all. Used an Openport 2.0 clone.