It just shows the Samsung Galaxy S II logo with yellow triangle and exclamation then a black screen???? I still can go to Recovery and Downloading Mode.
It is GT-i9100 running 2.3.5 Gingerbread from Saudi Arabia.
Do a wipe/factory reset in Recovery.
MistahBungle said:
Do a wipe/factory reset in Recovery.
Click to expand...
Click to collapse
Did that. No avail.
One thing that I could add to my statement. This is a brand new device. One day old. I did root it from these instructions
software2tech . com/2012/04/10/galaxy-s2-android-4-0-3-i9100dxlp7/ (remove spaces)
and after that this happened. Whenever I'm charging the phone it just shows a green battery meter with some dots on the bottom. Then if I turn it on again it will go back to a grey battery with a spinning circle and after that the usual green battery meter.
How should we know anything about a method from another site ? Ask on the site you got the method from.
Alternatively...
Look for a kernel that matches (or closest match) your current kernel that you can find in settings/about phone in the CFRoot thread & follow the instructions to root your phone. Read the thread very carefully, particularly the bit that says "Help! Which file do I use ?". I won't be answering any questions about which kernel you should use. Read the thread & you should be able to work that out for yourself.
Edit to add - Make absolutely sure you have an I9100 or an I9100T, check the sticker on the phone chassis under the battery.
MistahBungle said:
How should we know anything about a method from another site ? Ask on the site you got the method from.
Alternatively...
Look for a kernel that matches (or closest match) your current kernel that you can find in settings/about phone in the CFRoot thread & follow the instructions to root your phone. Read the thread very carefully, particularly the bit that says "Help! Which file do I use ?". I won't be answering any questions about which kernel you should use. Read the thread & you should be able to work that out for yourself.
Edit to add - Make absolutely sure you have an I9100 or an I9100T, check the sticker on the phone chassis under the battery.
Click to expand...
Click to collapse
It is def. an i9100. I'm gonna try the fix from the Fix an unflashable or softbricked GSII thread. Would you think that would work? I don't want to get rooted now because all of the problems it gave to me.
Silly boy. I used superoneclickroot to root mine, very easy. Or use cf root again very easy, word of advice tho- you wont get much help on here if you got a guide/root/rom from some other website. EVERYTHING you need can be found at xda. We have some of the top android devs in the world right here!!!
Sent from my GT-I9100 using Tapatalk
johnhw said:
It is def. an i9100. I'm gonna try the fix from the Fix an unflashable or softbricked GSII thread. Would you think that would work? I don't want to get rooted now because all of the problems it gave to me.
Click to expand...
Click to collapse
have you tried flashing any ROM from download mod through ODIN....
Could I re-root again with Superoneclickroot? This is an unbootable phone by the way. Though yes, I could still go to downloading mode and recovery mode.
I'm new to the Android rooting and crap. I've been used to iOS, Mac and Windows customization so everything is really hard and my mind is basically all nooby on Android.
@zaheedahmed - I'll go to factory Android ROM at this moment of time until I could resort all of the issues I have.
If you don't want to root, then go back to stock. Search this thread, if you can't find the stock rom you need there search this thread. Follow the guide in the 2nd one to flash the firmware. If the download links are dead, make a note of the firmware you want (even better if you know what firmware you have now/the firmware which came with the phone) and search Samfirmware.com for it. Follow whatever instructions they have for flashing firmware downloaded from their site.
That will give a you a 'clean slate'/back on stock.
MistahBungle said:
If you don't want to root, then go back to stock. Search this thread, if you can't find the stock rom you need there search this thread. Follow the guide in the 2nd one to flash the firmware. If the download links are dead, make a note of the firmware you want (even better if you know what firmware you have now/the firmware which came with the phone) and search Samfirmware.com for it. Follow whatever instructions they have for flashing firmware downloaded from their site.
That will give a you a 'clean slate'/back on stock.
Click to expand...
Click to collapse
Hmm. I just finished downloading the one on the fix unflashable GSII thread. Would that ROM work? Mine is an unbranded SGSII by the way.
No idea. Never read the thread. I threw you a few bones, up to you now.
johnhw said:
Hmm. I just finished downloading the one on the fix unflashable GSII thread. Would that ROM work? Mine is an unbranded SGSII by the way.
Click to expand...
Click to collapse
Attempting to do the one on the thread. Hopefully this will go well.
IT BOOTED UP!!!!!!!! HUZZZAAAAAAAAAHHHHHHHHHHHHHHHHH Thanks for the help!!!!!!! Learned more about rooting thanks to you guys. I will definitely look forward staying here in XDA Devs.
hello
I've got the same problem, same model, but I cant find my kernel. Tele2, netherlands. But I cant find a kernel for that. Can anybody help?
noahhaon said:
I've got the same problem, same model, but I cant find my kernel. Tele2, netherlands. But I cant find a kernel for that. Can anybody help?
Click to expand...
Click to collapse
Find it here. Read & follow the instructions carefully.
Related
Hi guys, been looking everywhere for this. Anyone can give me a clear guide Superoneclick doesnt work
Find the CFRoot kernel that corresponds to your current kernel in settings/about phone & follow the instructions in that thread to the letter. Bout 10 steps, easy peasy
search on the forum, there are plenty of threads already made for rooting..
MistahBungle said:
Find the CFRoot kernel that corresponds to your current kernel in settings/about phone & follow the instructions in that thread to the letter. Bout 10 steps, easy peasy
Click to expand...
Click to collapse
Thank you
NP Done ?
redfreak said:
Thank you
Click to expand...
Click to collapse
MistahBungle said:
NP Done ?
Click to expand...
Click to collapse
Yeap. Done. Had issues with Modern Combat 3 lagging in Singleplayer. Hmm, btw, any guides to unroot? Just in case I needa claim warranty
Good man
If you ever need to unroot, in case you have to send the phone in for warranty service or whatever, find your firmware in this thread or if you can't find anything specific to your carrier use the most recent one for your country from here and flash in Odin.
Do a factory reset just to make sure there's no apps laying around on the phone that might tip off whomever repairs it (Samsung) that you've been running non-official firmware on it, and get a jig from eBay to reset the flash counter (do a search for "Samsung Galaxy S2 jig", costs a couple of bucks).
Not sure about the MW thing as I've never played it, hopefully someone else might come along and offer a hand (Maybe change the title of your thread ?).
redfreak said:
Yeap. Done. Had issues with Modern Combat 3 lagging in Singleplayer. Hmm, btw, any guides to unroot? Just in case I needa claim warranty
Click to expand...
Click to collapse
MistahBungle said:
Good man
If you ever need to unroot, in case you have to send the phone in for warranty service or whatever, find your firmware in this thread or if you can't find anything specific to your carrier use the most recent one for your country from here and flash in Odin.
Do a factory reset just to make sure there's no apps laying around on the phone that might tip off whomever repairs it (Samsung) that you've been running non-official firmware on it, and get a jig from eBay to reset the flash counter (do a search for "Samsung Galaxy S2 jig", costs a couple of bucks).
Not sure about the MW thing as I've never played it, hopefully someone else might come along and offer a hand (Maybe change the title of your thread ?).
Click to expand...
Click to collapse
If theres any award for XDA's most helpful member, think you deserve it. Thanl you so muchhhhh. Really appreciate it
Awwww You're much too kind.
No worries, as long as you read up & follow the instructions for flashing a rom/kernel you should be able to handle things just fine, and given you nailed the CF Root thing first go without any dramas (which is a pretty fair effort, a lot of people who post here seem to have problems with it ), I'm sure you'll ace anything you have a go at
redfreak said:
If theres any award for XDA's most helpful member, think you deserve it. Thanl you so muchhhhh. Really appreciate it
Click to expand...
Click to collapse
MistahBungle said:
Awwww You're much too kind.
No worries, as long as you read up & follow the instructions for flashing a rom/kernel you should be able to handle things just fine, and given you nailed the CF Root thing first go without any dramas (which is a pretty fair effort, a lot of people who post here seem to have problems with it ), I'm sure you'll ace anything you have a go at
Click to expand...
Click to collapse
Thanks. Anyway, flashed my official :
DXKL3
Firmware info
PDAXKL3
PHONE: DXKL1
Date: 15/12/2011
Android 2.3.6
MultiCSC Package (GLB, MM1, SIN, SMA, STH, THL, XEV, XME, XSE, XSP, XTC, XTE, XXV): http://www.multiupload.com/AK0TGH6WXX
DXKL3 Stock Kernel: http://www.multiupload.com/PY2EJTIQ2E
Password: [email protected]
But erm, its still rooted
Flash the kernel on it's own. Hard to say why the kernel didn't take when you flashed the full firmware.
MistahBungle said:
Flash the kernel on it's own. Hard to say why the kernel didn't take when you flashed the full firmware.
Click to expand...
Click to collapse
flashed the tar.md5 file. Am i suppose to remove the .md5 and change it to tar?
No. Don't have to remove the md5 bit. If you've tried flashing the kernel on its own in the PDA section of Odin as per my last post, try re-flashing the entire rom.
redfreak said:
flashed the tar.md5 file. Am i suppose to remove the .md5 and change it to tar?
Click to expand...
Click to collapse
ok. Any ideas where I can find the original rom mate?
You downloaded & flashed the "official" firmware as per your post on the first page, didn't you ? If you've already tried flashing the stock kernel as I'd suggested & that didn't unroot your phone, try flashing the whole stock package you downloaded again.
redfreak said:
ok. Any ideas where I can find the original rom mate?
Click to expand...
Click to collapse
MistahBungle said:
You downloaded & flashed the "official" firmware as per your post on the first page, didn't you ? If you've already tried flashing the stock kernel as I'd suggested & that didn't unroot your phone, try flashing the whole stock package you downloaded again.
Click to expand...
Click to collapse
Ok, im on stock rom. What I did was to flash the kernel for root. Firmware wasnt touched. So, erm I have to reflash the entire rom. Any links I can refer to? I'm from Southeast Asia - Singapore
I gave you the links to official firmware on the first page. Yes. I told you how to unroot the phone on the first page with those links :-| I'm not going to tell you which firmware to flash, you should be able to work that one out yourself given you mentioned your original firmware on page one as well.
Hi I was just interested in which way is best to root my device and why.
I broke my last galaxy s2 doing it via odin as I was unable to unroot it.
This time I have done it the superoneclick way and unrooted via ginger unroot app.
Yes I'm a noob and someone if any one answer will have a pop about which thread I should've gone to, but looking around for the last hour has shown bugger all.
I could'nt for some reason unroot with odin and am baffled why.
Any help would be appreciated
Regards Shaun
Root using one of the many root kernels.
Unroot by flashing a stock ROM from this thread: http://forum.xda-developers.com/showthread.php?t=1075278
Easiest way just flash CF Root via Odin. Job done simples.
Yes, I'm going to have a "quick pop". Initial search of Q&A forum turned up very similar questions, this is where you should have posted instead of creating a new one?
http://forum.xda-developers.com/search.php?searchid=8243020
Answers are above, including the link with guides.
Hi I did this the first time via odin, but was unable to unroot.
I used an insecure kernal and had the original kernal but when I flashed the original kernal back it was still rooted.
So this may be a silly question but why do I need to flash a rom as some people seem to suggest?
Sorry to sound thick ( I am I guess ) but so much info has really baffled me.
I thought you downloaded an insecure kernal and flashed via odin and that was it, rooted, then if you want to unroot you flash the original kernal, use usb jig and job was done.
Or am I way off lol
Again sorry if I am that bad
Regards Shaun
If you flash back stock firmware, busybox and superuser are removed, so you won't have root access. Also stock kernel as part of the package will instal stock recovery.
Sent from my GT-I9100 using xda premium
Iamaspecialneedscase said:
So this may be a silly question but why do I need to flash a rom as some people seem to suggest?
Click to expand...
Click to collapse
The actual rooting process changes (adds) things to the system, that's why you need to flash a "clean" one to unroot.
The unsecure kernels only provide the means to perform the root, they don't do the actual root.
Kernels like CF-Root or mine (see sig) do perform the actual root on boot, but as said above, it involves adding things to the original system.
First and foremost, thank you all for your info it is much appreciated and I mean that.
But I am totally lost and still have a screwed of G2 in the drawer.
I have followed advice to the T and some how I am no better off.
I mean what has firmware and roms got to do with rooting or unrooting.
I just want to get to grips with rooting before flashing firmware or at least someone to say what I did wrong.
On my new G2 I did it via superoneclick is that wrong?
Regards Shaun
Iamaspecialneedscase said:
I mean what has firmware and roms got to do with rooting or unrooting.
Click to expand...
Click to collapse
This has been answered two times in this thread!
Read it!
Iamaspecialneedscase said:
On my new G2 I did it via superoneclick is that wrong?
Click to expand...
Click to collapse
No, I did my very first root using that one as well, perfectly fine.
Iamaspecialneedscase said:
and still have a screwed of G2 in the drawer.
Click to expand...
Click to collapse
How screwed?
What does it still do and what doesn't it? Can it maybe still go to donwload mode (VOLDOWN+HOME+POWER when off)?
it keeps coming up with force closeandroid.com and has lost its signal for 3g.
Iamaspecialneedscase said:
I mean what has firmware and roms got to do with rooting or unrooting.
I just want to get to grips with rooting before flashing firmware or at least someone to say what I did wrong.
Thats usually in most cases not following the relevant instructions .
This method works but if you cannot understand it then leave your phone unrooted and start reading the Guides and FAQS .
Root + CWM .
http://forum.xda-developers.com/showthread.php?t=1103399
Basics are choose your kernel flash through Odin phone is now rooted .
Ignore the yellow triangle or just buy a USB recovery jig to remove it .
jje
Click to expand...
Click to collapse
yes still does download mode still makes calls, just could'nt unroot it and when I used gingerunroot app it unrooted it but the force close bit and bad signal started. Then I could'nt root it or bugger all
Iamaspecialneedscase said:
yes still does download mode still makes calls, just could'nt unroot it and when I used gingerunroot app it unrooted it but the force close bit and bad signal started. Then I could'nt root it or bugger all
Click to expand...
Click to collapse
Just re-flash official firmware from Intratech's thread [ROM+Guide]Official i9100 Firmwares KG, KH, KI, KJ, KK1/2/5, KL1/2/3, LA2 Download (mentioned in an earlier post).
Follow his instructions exactly, and you shouldn't go wrong
After you've further researched and read, follow the above mentioned rooting methods to the letter. Done
Iamaspecialneedscase said:
yes still does download mode still makes calls, just could'nt unroot it and when I used gingerunroot app it unrooted it but the force close bit and bad signal started. Then I could'nt root it or bugger all
Click to expand...
Click to collapse
Flash a fresh/clean ROM like suggested in this thread, that should most definitaly fix that phone and get it back to fully working state.
So just before I do this flashing the firmware, just to make sure you understand!
I do the flashing the firmware as if I was flashing the kernal?
Also I'm on 2.3.4 will it stay as that or will I have to use another firmware for that?
Again sorry if I am getting this wrong and thank you for your patience
Get a USB jig.
Flash your stock rom of choice from the intratech thread.
Flash speedmod kernel or whichever you want to gain root.
PS. You shouldn't be flashing anything if you don't know what your doing.....
Sent from my GT-I9100 using Tapatalk
Iamaspecialneedscase said:
So just before I do this flashing the firmware, just to make sure you understand!
I do the flashing the firmware as if I was flashing the kernal?
Also I'm on 2.3.4 will it stay as that or will I have to use another firmware for that?
Again sorry if I am getting this wrong and thank you for your patience
Click to expand...
Click to collapse
The intention is to get the phone in a working state, so you can just about flash any official firmware you like. Your Android version will also upgrade if you flash a newer package.
Good reports about XILA2. May have a few Italian apps on it, you may wish to keep them or uninstall later. You may have to flash a seperate CSC later, or just manually enter your APN.
Follow Intratech's instructions and go for it!
I want to root my galaxy s2 badly but i got a few questions before i do that
1. My phone is still under warrenty, so is it good idea to root ?
2. Link me to the most stable ICS roms for galaxy s2.
3. Tutorial to root galaxy s2 running android 2.3.6 gingerbread (I.E : Running the most recent kies update).
Thank you very much
1. If you need to invoke the warranty, you un-root and reset flash counter. No problems there.
2. I use D4 rom (link in sig) - it's pretty amazing. Otherwise just search, flash, and find your favorite.
3. Flash a CF-root kernel. Read here: http://forum.xda-developers.com/showthread.php?t=1331784
Imperiale said:
1. If you need to invoke the warranty, you un-root and reset flash counter. No problems there.
2. I use D4 rom (link in sig) - it's pretty amazing. Otherwise just search, flash, and find your favorite.
3. Flash a CF-root kernel. Read here: http://forum.xda-developers.com/showthread.php?t=1331784
Click to expand...
Click to collapse
Thanks for the response and btw is that D4 rom a stable release?
Yes it is stable (based on CM9 - vanilla pure Android), with updates every few days or so. The dev is very responsive and quick to fix any bugs.
Sent from my GT-I9100
Seems I have you the wrong link for the kernels, here is the right one: http://forum.xda-developers.com/showthread.php?t=1103399
Thanks to you sir i have bricked my phone. The only access i have now is my damn download mode and lost access to recovery mode. What should i do now
If you can get into download mode your phone isn't bricked. How bout you take responsibility for your own actions ?
If you'd read the CFRoot thread completely & understood the bit that says (in bold red type ) "Help ! Which file do I use ?", you wouldn't be in the situation you're in.
Now, be a good lad, go back to the CFRoot thread, and read it. The whole first page. If you can manage that, you should be able to fix your phone fairly quickly.
(all this assumes you have an I9100/I9100T, of course)
MistahBungle said:
If you can get into download mode your phone isn't bricked. How bout you take responsibility for your own actions ?
If you'd read the CFRoot thread completely & understood the bit that says (in bold red type ) "Help ! Which file do I use ?", you wouldn't be in the situation you're in.
Now, be a good lad, go back to the CFRoot thread, and read it. The whole first page. If you can manage that, you should be able to fix your phone fairly quickly.
(all this assumes you have an I9100/I9100T, of course)
Click to expand...
Click to collapse
I am sorry for being rude but i am trying my best to get my phone back to shape. I was worried about amount i spent thats it i didnt intend to blame the person who tried to help me.
mrbadguy5 said:
Thanks to you sir i have bricked my phone.
Click to expand...
Click to collapse
Definitely not blaming anyone there... As MistahBungle said, READ THE DAMN THREAD BEFORE DOING YOUR OWN THING, or next time it will be a bricked phone and the only person to blame would be yourself.
Chris.
first of all sorry if this is a repeated thread, very new to this site and no offense intended. please point me in the right direction if this is the case.
phone is very unresponsive with either a battery symbol (with circle inside - frozen) or galaxy s2 load up screen with triangle. I have previously rooted the phone with a litening rom through odin v 1.85. i was running a version of ICS on it and this morning i tried to upgrade to jellybean as a forum on this site had said it was possible. firstly in clockwork mod (holding power, vol up and home button) somewhere through the process of putting the file on the phone (instructions said to carry out the process through the clockwork mod) i have made a grave error. If I was able to get the phone to be recognised by the laptop I would be able to flash another stock kernel through odin to at least get me back functional and worry about tweaking later. Currently the phone won't recognise as a drive to the laptop though. Any advice people? Perhaps a suggestion also of a location of stock kernel for australian samsung galaxy s2 (using the virgin network).
That's just a soft brick, don't worry about it .
We got plenty of threads about phone not being recognized by PCs.
Checked the pistachio thread?
Sent from the little guy
just a soft brick, gastnow right check pistachio theard
ShowerPower said:
just a soft brick, gastnow right check pistachio theard
Click to expand...
Click to collapse
Are you following me around?
Sent from the little guy
gastonw said:
Are you following me around?
Sent from the little guy
Click to expand...
Click to collapse
Hes just spamming to build up his post count.Hes posting at double the rate you have.......lol.
"noob ok...lazy noob not ok"
theunderling said:
Hes just spamming to build up his post count.Hes posting at double the rate you have.......lol.
"noob ok...lazy noob not ok"
Click to expand...
Click to collapse
Why did he pick me? Should I be worried?
Be afraid. Be VERY afraid.
Sent from my digital submersible hovercraft.
f-r said:
Be afraid. Be VERY afraid.
Sent from my digital submersible hovercraft.
Click to expand...
Click to collapse
O M G
further problems with rooted phone
gastonw said:
That's just a soft brick, don't worry about it .
We got plenty of threads about phone not being recognized by PCs.
Checked the pistachio thread?
Sent from the little guy
Click to expand...
Click to collapse
Hi (newb alert)
First of all thanks for all the info - followed the pistacchio thread to regenerate phone, that worked great. however, now once the phone is going again, repeatedly getting an overvoltage error message (did not have before) and the battery dying very quickly. I also cannot access the 3G network, but wifi is fine.
Can you recommend a course of action for this, not sure if i have flashed back to a complete stock rom or not, does that mean that the phone is still rooted? I would like to flash another rom if possible, but am not asking what one to use (have seen the rules of the site Sometimes the battery is even flashing . kernel version is 3.0.15-I9100XXLPH-CL118559 and build number is IML74K.XXLPH.
Any more info needed I am happy to provide. I was really happy with the slim ICS rom and would like to stick with that in the jellybean option if possible.
thanks
Go as stock as possible before going custom again.
See if issues persists.
Make sure you flash the right ROM for your device, noticed you're on I9100 ROM and you've only stated you own an "s II" , so, I cannot recommend any specific ROM because of the variants.
Sent from the little guy
sgs2
gastonw said:
That's just a soft brick, don't worry about it .
We got plenty of threads about phone not being recognized by PCs.
Checked the pistachio thread?
Sent from the little guy
Click to expand...
Click to collapse
gastonw said:
Go as stock as possible before going custom again.
See if issues persists.
Make sure you flash the right ROM for your device, noticed you're on I9100 ROM and you've only stated you own an "s II" , so, I cannot recommend any specific ROM because of the variants.
Sent from the little guy
Click to expand...
Click to collapse
Sorry phone is a gtI9100. Australian on Virgin network, which is same as optus one I think, more info required? Happy to provide. Do you know any links (with helpful instructions and up to date download links) to help please
divx4life said:
Sorry phone is a gtI9100. Australian on Virgin network, which is same as optus one I think, more info required? Happy to provide. Do you know any links (with helpful instructions and up to date download links) to help please
Click to expand...
Click to collapse
You can find a lovely thread about official jelly bean posted in the general section. There you can find download links and support for 4.1.2
Sent from the little guy
I got a phone from a friend, and it seems sim locked to tre (sweden). now im trying to get it rooted to get rid of the sim lock. but im totally new to both smartphones and android. i've only jailbreaked ipod touch before.
i was following these two threads to get it unlocked
http://forum.xda-developers.com/showthread.php?t=1092451
http://forum.xda-developers.com/showthread.php?t=1877270
but i cant find the right one, which should be XWKF4, right?
android version
2.3.3
baseband version
i9100nekf2
kernel version
2.6.35.7-i9100xwkf4-cl280512
build number
gibgerbread.xwkf4
Click to expand...
Click to collapse
im a little bit afraid of trying a diffrent one because i dont know what can happend...
edit: i found one thread that may be working, but i dont know. "Ice Cream Sandwich XWLP7 (4.0.3): http://www.mediafire.com/download/wb...2.7-signed.zip" can that work? im not sure if LP7 work?
http://forum.xda-developers.com/showthread.php?t=2365701
thanks!
Good work having a real go at it yourself, but honestly, make life easy for yourself & use the guide in the thread stickied near the top of Q&A. You'll have it done in minutes.
MistahBungle said:
Good work having a real go at it yourself, but honestly, make life easy for yourself & use the guide in the thread stickied near the top of Q&A. You'll have it done in minutes.
Click to expand...
Click to collapse
that's my problem, that thread dosnt tell me which one i need, or where to get it. i've looked at dozens of guides and cant find one that help me. the only thing that i seem to have a problem with is which one i should use, because i cant find the XWKF4 one.
Because you're running ancient GB firmware, update your firmware to ICS or JB first, then root. Instructions/links in that same thread.
MistahBungle said:
Because you're running ancient GB firmware, update your firmware to ICS or JB first, then root. Instructions/links in that same thread.
Click to expand...
Click to collapse
okej, thanks.i followed this one (http://forum.xda-developers.com/showthread.php?t=2365701) and everything was fine until i was gonna root it, and when i was done with that (odin said succiful) it wasnt rooted. i downloaded the files in thread and followed every step. what could gone wrong?
Did you look at Doomlords easy rooting kit.I think that does it.Also search for Spocky's unlock app.
theunderling said:
Did you look at Doomlords easy rooting kit.I think that does it.Also search for Spocky's unlock app.
Click to expand...
Click to collapse
that tool said that i dont have permission, which means its not rooted? why do i need a rooted device to root it? or im missing something? i did every step on that too...
edit: i had old version. but cant find new one (4.0.3) for SGS2, only xperia
I cant remember if Spockys tool needs to be used with rooted ICS or higher.
But if your planning on doing other things with your phone,youd be better starting off where Mistahbungle said(ICS).
Then you just root that and unlock.You read about using pc odin and get the ICS rom from sammobile.Then just flash a rooted siyah kernel,or something similar.