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How to create an SD patch

:::warning REMEMBER! Every intervention to MIB firmware can result a boot loop. If this happens you will have to flash the original FW via emergency mode. Everything you do is at your own risk!

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Basic information

:::info With this tutorial you will be able to create your own SD Card patch depending on your system and needs.

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:::warning Read all steps before start working with this!

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Tools required

  1. MST2_DIY_SD_patch_bundle.7z tool package stored on MIBSolution.one in MQB_Solution/MST2 - TechniSat Preheating /Instruction.
  2. FW on your unit or better and easier the FW file you want to update to.

Steps

:::info If you want to build a new Patch, always use a fresh download of DIY SD Patch.7z.

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:::info Never use the template again if you have already built a patch with it!

Always start with a clean copy.

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  • The xx in some file names and folders below are placeholders, as these parts differ depending on the FW you are working with.
  • Every JXETool will create a modified file in the same place as the original file is stored.
  • There is also a German Liemich.txt coming with the archive ;-)

CP OFF, or FEC ALL or CID OFF

:::tip Decide which patches you need: CP_OFF, or FEC_ALL, or CID_OFF

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FEC_ALL (modify tsd.mibstd2.system.swap)

:::info This will enable all FECs supported by unit

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  1. Get cpu_swap_xx_default.tar.gz in foldercpu/swap/xx/default/ from FW file
  2. Get tsd.mibstd2.system.swap stored in tsd/bin/swap/
  3. Unpack this file into /JXETools/ folder and runSWaPPatcher.exe then press Enter if the filename is still tsd.mibstd2.system.swap and the file tsd.mibstd2.system.swap.patch will be created.
  4. Move the file tsd.mibstd2.system.swap.patch to _patch_template\cpu\onlineservices\1\default\tsd\bin\swap folder and rename it to tsd.mibstd2.system.swap
  5. FECs will be added by Exception list signed_exception_list.txt which is already stored in _patch_template\cpu\onlineservices\1\default\tsd\etc\slist. Just leave the file as it is.

:::tip No additional upload of SWAPs is required with this method!

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  • If you also need CP_OFF, continue with the CP_OFF part.
  • If you need only needed FEC_ALL patch you have to use HashesGenerator.exe now!

CP_OFF (modify tsd.mibstd2.hmi.ifs)

:::info CP will be patched out - error in 5F will stay

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  1. Get cpu_hmixx_xx_default.tar.gz in foldercpu/hmixxx/xx/default/ from FW file
  2. Get the whole hmi folder stored in tsd/tmp/
  3. Unpack the hmi folder to _patch_template\cpu\onlineservices\1\default\tsd\tmp\hmi. Get file tsd.mibstd2.hmi.ifs from _patch_template\cpu\onlineservices\1\default\tsd\tmp\hmiand move it into IFSTool folder. Run IFSTool.exe and load tsd.mibstd2.hmi.ifs
  4. Click "Unpack" and tsd.mibstd2.hmi-unpacked.ifs will be created in a folder. Copy this file to the same folder as CPPatcher.exe (JXEToolsfolder) and run it. The file tsd.mibstd2-hmi-unpacked.ifs.patched will be generated.
  5. Load tsd.mibstd2-hmi-unpacked.ifs.patched into IFSTool and click "Pack".
  6. Now there will be a file tsd.mibstd2-hmi-unpacked.ifs-repacked.patched. Copy it into _patch_template\cpu\onlineservices\1\default\tsd\tmp\hmi folder and rename to tsd.mibstd2.hmi.ifs

  7. Copy the whole (modified) hmi folder to cpu/onlineservices/1/default/tsd/tmp/.

  8. If you also need CID_OFF, continue with the CID_OFF part.

  9. If you need only needed CP_OFF patch you have to use HashesGenerator.exe now!

CID_OFF

:::warning This will add support for all SD cards for maps

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:::info Select folder below based on your FW train version 02xx, 03xx, 04xx.

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Copy /nav/ folder from /CID xXX/nav/ to _patch_template/cpu/onlineservices/1/default/tsd/etc/.

mibstd2_nav_target.ini is already changed to support all SD cards.

:::info Run HashesGenerator.exe now!

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Signing with HashesGenerator.exe

:::warning Do this only once at the end, when all patches you need are prepared.

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After you have built your custom patches files have to be "signed" with the "HashesGenerator.exe" which is stored in _patch_template/cpu/onlineservices/1/default. It will generate the correct hashes.txt so that all files are accepted by FW update process.

Installing the patch from SD via FW update

  1. Insert SD card into SD slot of the unit
  2. Press and hold MENU button for 3 seconds to enter Service menu video.
  3. Go to Software update/versions → Update → continue with the installation