[Galaxy S II Q&A, Help & Troubleshooting] dawitt1995:
Hi guys!

A friend of mine has a I9100 16GB and tried rooting it in order to install a custom ROM. Somehow he failed, but he doesn't really know why. He asked me to try to fix it, but since I've never had a non-nexus Samsung device I feel kind of lost.

My goal is to revert to stock and then root it again or to go to a custom ROM directly.

The Recovery shows the symbol of a phone connect with a laptop and a warning sign.

I tried going back to stock JellyBean using many different versions of Odin on different computers but they all either failed or got stuck at "NAND write starts".

I don't know my way around pit files and as they seem to be very dangerous I want to avoid them as long as possible.

The last thing I did is to use Heimdall on my linux machine and print the devices pit (in case that helps). This is what it said

Entry Count: 15
Unknown 1: 0
Unknown 2: 0
Unknown 3: 0
Unknown 4: 0
Unknown 5: 0
Unknown 6: 0
Unknown 7: 0
Unknown 8: 0

--- Entry #0 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 0
Attributes: 0 (Read-Only)
Update Attributes: 0
Partition Block Size: 0
Partition Block Count: 0
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: GANG
Flash Filename: emmc.img
FOTA Filename:

--- Entry #1 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 1
Attributes: 0 (Read-Only)
Update Attributes: 0
Partition Block Size: 0
Partition Block Count: 0
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: BOOT
Flash Filename: boot.bin
FOTA Filename:

--- Entry #2 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 4
Attributes: 1 (Read/Write)
Update Attributes: 0
Partition Block Size: 8192
Partition Block Count: 40960
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: EFS
Flash Filename: efs.img
FOTA Filename:

--- Entry #3 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 2
Attributes: 0 (Read-Only)
Update Attributes: 0
Partition Block Size: 49152
Partition Block Count: 2560
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: SBL1
Flash Filename: Sbl.bin
FOTA Filename:

--- Entry #4 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 3
Attributes: 0 (Read-Only)
Update Attributes: 0
Partition Block Size: 53248
Partition Block Count: 2560
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: SBL2
Flash Filename:
FOTA Filename:

--- Entry #5 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 5
Attributes: 0 (Read-Only)
Update Attributes: 0
Partition Block Size: 57344
Partition Block Count: 16384
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: PARAM
Flash Filename: param.lfs
FOTA Filename:

--- Entry #6 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 6
Attributes: 0 (Read-Only)
Update Attributes: 0
Partition Block Size: 73728
Partition Block Count: 16384
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: KERNEL
Flash Filename: zImage
FOTA Filename:

--- Entry #7 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 7
Attributes: 0 (Read-Only)
Update Attributes: 0
Partition Block Size: 90112
Partition Block Count: 16384
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: RECOVERY
Flash Filename:
FOTA Filename:

--- Entry #8 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 8
Attributes: 1 (Read/Write)
Update Attributes: 0
Partition Block Size: 106496
Partition Block Count: 204800
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: CACHE
Flash Filename: cache.img
FOTA Filename:

--- Entry #9 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 9
Attributes: 0 (Read-Only)
Update Attributes: 0
Partition Block Size: 311296
Partition Block Count: 32768
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: MODEM
Flash Filename: modem.bin
FOTA Filename:

--- Entry #10 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 10
Attributes: 1 (Read/Write)
Update Attributes: 0
Partition Block Size: 344064
Partition Block Count: 1048576
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: FACTORYFS
Flash Filename: factoryfs.img
FOTA Filename:

--- Entry #11 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 11
Attributes: 1 (Read/Write)
Update Attributes: 0
Partition Block Size: 1392640
Partition Block Count: 4194304
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: DATAFS
Flash Filename: data.img
FOTA Filename:

--- Entry #12 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 12
Attributes: 2 (STL Read-Only)
Update Attributes: 0
Partition Block Size: 5586944
Partition Block Count: 24133632
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: UMS
Flash Filename:
FOTA Filename:

--- Entry #13 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 13
Attributes: 1 (Read/Write)
Update Attributes: 0
Partition Block Size: 29720576
Partition Block Count: 1048576
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: HIDDEN
Flash Filename: hidden.img
FOTA Filename:

--- Entry #14 ---
Binary Type: 1 (CP)
Device Type: 1 (File/FAT)
Identifier: 9
Attributes: 0 (Read-Only)
Update Attributes: 0
Partition Block Size: 0
Partition Block Count: 0
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name:
Flash Filename:
FOTA Filename:

What would be the best way for me to proceed now?

David.