Nearly three years ago my Samsung Galaxy S2 (i9100) system completely broke (after about 1 or 1.5 years of what I would call normal Samsung usage :D - a lot of errors and problems, but usually fixable) and wasn't bootable any more and I decided to install CyanogenMod. After some struggling I was able to flash it correctly via heimdall (on Linux) and used it for more than a year afterwards.
At some point it suddenly stuck at the Samsung boot logo (I can't tell any more if there was a specific reason) and I was really stressed by my job so I had little time to repair it. I bought an HTC and still am very happy with that. Sadly, my brother is in big need of a replacement for his damaged phone so I am trying to repair the Samsung.
I found out that it does not only hang on the boot logo, but also is not able to boot into Recovery Mode by pressing (in that and any other order) [Vol-Up]+[Home]+[Power]. I am able to boot it into Download Mode by pressing [Vol-Down]+[Home]+[Power] though, so I decided to simply try and flash a current CyanogenMod kernel following the CyanogenMod Guide for my device. Neither the latest of the Snapshot nor the latest of the Nightly releases and not even an allegedly official 4.0.3 ROM are working, though.
All kernel uploads hang at ~30MB (cm-12.1-20151114-NIGHTLY-i9100.zip with a size of 232252K @13%, cm-11-20141115-SNAPSHOT-M12-i9100.zip with a size of 210012K @14% and I9100XXLPQ_I9100OXALPQ_XEO.zip with a size of 391632K @7%) and the heimdall command respectively breaks after quite exactly 10 minutes of hanging at that percentage. The output is always something like this:
root@debian:/home/david/Desktop# heimdall flash --KERNEL cm-11-20141115-SNAPSHOT-M12-i9100.zip --no-reboot
Heimdall v1.4.0
Copyright (c) 2010-2013, Benjamin Dobell, Glass Echidna
http://www.glassechidna.com.au/
This software is provided free of charge. Copying and redistribution is
encouraged.
If you appreciate this software and you would like to support future
development please consider donating:
http://www.glassechidna.com.au/donate/
Initialising connection...
Detecting device...
Claiming interface...
Attempt failed. Detaching driver...
Claiming interface again...
Setting up interface...
Initialising protocol...
Protocol initialisation successful.
Beginning session...
Some devices may take up to 2 minutes to respond.
Please be patient!
Session begun.
Downloading device's PIT file...
PIT file download successful.
Uploading KERNEL
14%
ERROR: Failed to confirm end of file transfer sequence!
ERROR: KERNEL upload failed!
Ending session...
ERROR: Failed to send end session packet!
Releasing device interface...
Re-attaching kernel driver...
root@debian:/home/david/Desktop#
The phone does not show a blue transfer bar as indicated by the guide. lsusb recognizes the device as the following, which seems to be correct to me:
Bus 003 Device 013: ID 04e8:685d Samsung Electronics Co., Ltd GT-I9100 Phone [Galaxy S II] (Download mode)
I have no idea on what to do to fix this or continue debugging. Can anyone help?
[2015-11-19 20:45] Update I:
I downloaded the latest ClockWorkMod Recovery from here and tried to flash it, but the result did only slightly change from hanging at ~30MB to hangig at 100% (the clockworkmodrecovery.6050.i9100.touch.img I tried to flash having a size of 5024K). The process is pretty much the same by any other account:
root@debian:/home/david/Desktop# heimdall flash --RECOVERY clockworkmodrecovery.6050.i9100.touch.img
Heimdall v1.4.0
Copyright (c) 2010-2013, Benjamin Dobell, Glass Echidna
http://www.glassechidna.com.au/
This software is provided free of charge. Copying and redistribution is
encouraged.
If you appreciate this software and you would like to support future
development please consider donating:
http://www.glassechidna.com.au/donate/
Initialising connection...
Detecting device...
Claiming interface...
Attempt failed. Detaching driver...
Claiming interface again...
Setting up interface...
Initialising protocol...
Protocol initialisation successful.
Beginning session...
Some devices may take up to 2 minutes to respond.
Please be patient!
Session begun.
Downloading device's PIT file...
PIT file download successful.
Uploading RECOVERY
100%
ERROR: Failed to confirm end of file transfer sequence!
ERROR: RECOVERY upload failed!
Ending session...
ERROR: Failed to send end session packet!
Releasing device interface...
Re-attaching kernel driver...
root@debian:/home/david/Desktop#
Again, the command breaks after quite exactly 10 minutes of nothing and throws the Failed to confirm end of file transfer sequence! error.
Sadly there is no CM Recovery for my device on the CyanogenMod download site, so I can't try that out. Also the current latest of Snapshot and latest of Nightly releases are getting the same results as before: Both hang at ~30MB - cm-12.1-20151116-SNAPSHOT-YOG7DAO1JN-i9100.zip with a size of 231056K and cm-12.1-20151118-NIGHTLY-i9100.zip with a size of 232248K both @13%.
