I'm on Mac OsX 10.6.8, and after tried to flash my firmware using the downloaded PIT from my device, Heimdall told me that there were an error with libusb while it was trying to upload the PIT.

My SGS got semi-bricked, and after putting it to download mode again and unchecking Repartition in Heimdall, everything was fine with the flashing.

So, the question is... is there a bug with repartitioning? is it possible to use my device's PIT to repartition?

Need new bootloader for EPIC? How do I tell?

---

All, I picked up an EPIC from someone and they put DK28 on it which is a bit of a dead end. All searches turned up needing Odin and I don't have a Windows box. I then found Heimdall and then this thread here:

http://forum.xda-developers.com/show....php?t=1353310

This all looks promising but then I've read where I need to update the bootloader if I'm using a Mac. My question is, with an EPIC of somewhat unknown past, how do I know if I have the right bootloader on it? DK28 is the leaked Froyo that never got OTA'd. I want to get this EPIC back onto the OTA track so it can get Gingerbread. I've found CWM flashable images but the modem seems to be the biggest struggle. Of course, if Heimdall works, the thread above looks like it will get me all that I want.

So if anyone can help and tell me how to figure out if I've got the right bootloader and won't get the black screen problem, that would be cool.

thanks peterb

Need some help please :(

---

My device got messed up and I know nothing about using Linux or fixing partitions with ADB, I have the partition tables I need to fix it but I have no clue and no one in our community knows how to change the "head" sectors from four to ONE. Please this is my partition list from heimdal


Entry Count: 14
Unknown 1: 15718400
Unknown 2: 1
Unknown 3: 0
Unknown 4: 0
Unknown 5: 7703
Unknown 6: 237
Unknown 7: 62704
Unknown 8: 18


--- Entry #0 ---
Unused: No
Chip Identifier: 2 (Unused: %
s
)
Partition Identifier: 1
Partition Flags: 1 (R)
Unknown 1: 0
Partition Block Size: 256
Partition Block Count: 1
Unknown 2: 0
Unknown 3: 0
Partition Name: IBL+PBL
Filename: boot.bin


--- Entry #1 ---
Unused: No
Chip Identifier: 2 (Unused: %
s
)
Partition Identifier: 2
Partition Flags: 1 (R)
Unknown 1: 0
Partition Block Size: 256
Partition Block Count: 1
Unknown 2: 0
Unknown 3: 0
Partition Name: PIT
Filename: YPG70_8G-0304.pit


--- Entry #2 ---
Unused: No
Chip Identifier: 2 (Unused: %
s
)
Partition Identifier: 3
Partition Flags: 1 (R)
Unknown 1: 0
Partition Block Size: 256
Partition Block Count: 5
Unknown 2: 0
Unknown 3: 0
Partition Name: SBL
Filename: Sbl.bin


--- Entry #3 ---
Unused: No
Chip Identifier: 2 (Unused: %
s
)
Partition Identifier: 4
Partition Flags: 1 (R)
Unknown 1: 0
Partition Block Size: 256
Partition Block Count: 5
Unknown 2: 6226025
Unknown 3: 7143533
Partition Name: SBL2
Filename: Sbl.bin


--- Entry #4 ---
Unused: No
Chip Identifier: 2 (Unused: %
s
)
Partition Identifier: 5
Partition Flags: 1 (R)
Unknown 1: 0
Partition Block Size: 256
Partition Block Count: 20
Unknown 2: 0
Unknown 3: 0
Partition Name: PARAM
Filename: param.lfs


--- Entry #5 ---
Unused: No
Chip Identifier: 2 (Unused: %
s
)
Partition Identifier: 6
Partition Flags: 1 (R)
Unknown 1: 0
Partition Block Size: 256
Partition Block Count: 40
Unknown 2: 39021280
Unknown 3: 7143533
Partition Name: EFS
Filename: efs.rfs


--- Entry #6 ---
Unused: No
Chip Identifier: 2 (Unused: %
s
)
Partition Identifier: 7
Partition Flags: 1 (R)
Unknown 1: 0
Partition Block Size: 256
Partition Block Count: 30
Unknown 2: 36662408
Unknown 3: 0
Partition Name: KERNEL
Filename: zImage


--- Entry #7 ---
Unused: No
Chip Identifier: 2 (Unused: %
s
)
Partition Identifier: 8
Partition Flags: 1 (R)
Unknown 1: 0
Partition Block Size: 256
Partition Block Count: 30
Unknown 2: 6684793
Unknown 3: 3014771
Partition Name: RECOVERY
Filename: zImage


--- Entry #8 ---
Unused: No
Chip Identifier: 2 (Unused: %
s
)
Partition Identifier: 9
Partition Flags: 1 (R)
Unknown 1: 0
Partition Block Size: 256
Partition Block Count: 1160
Unknown 2: 0
Unknown 3: 0
Partition Name: FACTORYFS
Filename: factoryfs.rfs


--- Entry #9 ---
Unused: No
Chip Identifier: 2 (Unused: %
s
)
Partition Identifier: 10
Partition Flags: 1 (R)
Unknown 1: 0
Partition Block Size: 256
Partition Block Count: 536
Unknown 2: 6684780
Unknown 3: 115
Partition Name: DBDATAFS
Filename: dbdata.rfs


--- Entry #10 ---
Unused: No
Chip Identifier: 2 (Unused: %
s
)
Partition Identifier: 11
Partition Flags: 1 (R)
Unknown 1: 0
Partition Block Size: 256
Partition Block Count: 256
Unknown 2: 115
Unknown 3: 115
Partition Name: CACHE
Filename: cache.rfs


--- Entry #11 ---
Unused: No
Chip Identifier: 2 (Unused: %
s
)
Partition Identifier: 12
Partition Flags: 1 (R)
Unknown 1: 0
Partition Block Size: 256
Partition Block Count: 7696
Unknown 2: 0
Unknown 3: 0
Partition Name: DATAFS
Filename: datafs.rfs


--- Entry #12 ---
Unused: No
Chip Identifier: 2 (Unused: %
s
)
Partition Identifier: 13
Partition Flags: 1 (R)
Unknown 1: 0
Partition Block Size: 256
Partition Block Count: 20516
Unknown 2: 0
Unknown 3: 0
Partition Name: USERFS
Filename: userfs_8G.rfs


--- Entry #13 ---
Unused: No
Chip Identifier: 2 (Unused: %
s
)
Partition Identifier: 0
Partition Flags: 1 (R)
Unknown 1: 0
Partition Block Size: 0
Partition Block Count: 0
Unknown 2: 0
Unknown 3: 0
Partition Name: GANG
Filename: inand_8G.bin

Ending session...
Rebooting device...