[Galaxy S II Q&A, Help & Troubleshooting] matteo312:
EDIT: pls skip to top of page 2. thx.

- I've installed Samsung drivers

- downloaded odin v3.07

- had ClockworkMod working with power button menu and volume button up (I think it was preinstalled, phone is second hand)

- tried flashing CyanogenMod 12.1 as per this video:

wiping everything cache davlik and all that

- now nothing works, ClockworkMod doesn't load, I tried flashing TWRP, this doesn't work either

- when phone is switched on it gets stuck on the loading screen with a yellow exclamation marker

- download mode no longer shows progress bar when attempting to do a fresh flash and generally just seems to be stuck

anyone got any ideas? I don't even know if it's the lte or g variant? i've read about flashing to stock firmware but I can't get ahold of stock firmware, it's either unavailable or the links are dead, need UK version if anyone can point to a working link

button up menu and power doesn't work, stuck on black battery which no longer seems to charge.

additional info:

<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/003> Added!!
<ID:0/003> Odin engine v(ID:3.1301)..
<ID:0/003> File analysis..
<ID:0/003> Total Binary size: 7 M
<ID:0/003> SetupConnection..
<ID:0/003> Initialzation..
<ID:0/003> Get PIT for mapping..
<ID:0/003> Firmware update start..
<ID:0/003> NAND Write Start!!
<ID:0/003> SingleDownload.
<ID:0/003> recovery.img
<ID:0/003> FAIL!
<ID:0/003>
<ID:0/003> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)

this is what shows up when trying to flash recovery.tar.md5 using odin v3.13

I also tried flashing TWRP_2.8.7.0_Recovery_Only_signed.tar, same problem:

<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/003> Added!!
<ID:0/003> Odin engine v(ID:3.1301)..
<ID:0/003> File analysis..
<ID:0/003> Total Binary size: 7 M
<ID:0/003> SetupConnection..
<ID:0/003> Initialzation..
<ID:0/003> Get PIT for mapping..
<ID:0/003> Firmware update start..
<ID:0/003> NAND Write Start!!
<ID:0/003> SingleDownload.
<ID:0/003> recovery.img
<ID:0/003> FAIL!
<ID:0/003>
<ID:0/003> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
<ID:0/003> Odin engine v(ID:3.1301)..
<ID:0/003> File analysis..
<ID:0/003> Total Binary size: 5 M
<ID:0/003> SetupConnection..
<ID:0/003> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)

further edit: okay this rom worked https://www.mediafire.com/download/fmtebc3z4h3tb0t/I9100JPLPJ_I9100OJPLPH_MID--www.samsony.net--.zip

how do I install TWRP or CMR ? I tried PhilZ Touch but it didn't work either...

custom binary download is on 5 counts now

when trying to install philz touch I get this:

<ID:0/003> Added!!
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> philz_touch_6.07.9-i9100.tar.md5 is valid.
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/003> Odin v.3 engine (ID:3)..
<ID:0/003> File analysis..
<ID:0/003> SetupConnection..
<ID:0/003> Initialzation..
<ID:0/003> Get PIT for mapping..
<ID:0/003> Firmware update start..
<ID:0/003> recovery.img
<ID:0/003> NAND Write Start!!

and it just freezes there.