[Galaxy S II Android Development] memine:
Sorry, English is my first language...I just type like it's my second. ;c)

I don't have access to another phone at the moment so no screen shots. Here is a full walk-through of my process since I got the phone this week.

I went from a stock MUG LD3 to CF-Root-???-LP7.

Installed apps both through Google and backups on SD card.

Later found and applied "Galaxy_s unlock" hack as it couldn't retrieve code.

Played around with encryption options for phone and external SD off and on.

Found that you can't encrypt the phone with an external SD card installed, you need to remove first.

Found I was no longer able to install Apk from Google Play or SD Cards that default to SD card install.

(About 4 apps I had already installed no longer showed up on the menus and I had to clean cache.)

Tried to change to a new ROM, CF-Root-???-LP9.

Failed when using CF-Root CWM GUI or recovery menu. (Using kernel option or zip update.)

Unencrypted everything and tried again, still failed.

Used Odin3, seemed to worked fine.

Did a factory reset, and dalvik wipe. (Seemed to make things worse but then better after waiting a bit and rebooting.)

Re-applied all apps and tools and contacts, etc.

Re-encrypted everything.

Still couldn't install some apps.

Unencrypted SD card and then phone.

Used Chanfire's CWM GUI to reboot into recovery.

Flashed as per instructions PhilZ-MUGLD3-MBMCLD3-cwm6-1.0-signed.zip

Rebooted and noted the kernel was again MUG LD3, phone seemed rooted, all apps I tried either worked or needed to auto apply root permissions ans settings. (Lost contacts a a few other apps and gained some removed ones back but that's normal.)

Noted that the CWM GUI 3.15 that came with CF-Root ROM was still there but it has a popup that says wrong CWM installed.

Installed ROM Manager 5.0.2.0 which looks okay until I try to boot into recovery, or a few other menu items I tried, and then hangs.

Used CWM GUI to reboot into recovery. New version with touch is installed and working. (Missing +Go Back+ option was my error, it's there.)

Tried to veiw log for info but scrolls by to fast and is then covered by menu options.

What I can see seems to point to internal or more likely external SD card issues as noted in last post.

As instructions didn't state doing a wipe or factory reset was supposed to be done prior to flashing I didn't.

Currently the new kernel is running with no other changes to my image. The CWM GUI 3.15 from Chainfire is still there and sort of working.

In recovery mode CM 6+ is working fine with touch but I haven't done much with it.

Still have issues installing one or two apk files I had installed before but no longer seems to be an SD card issue as no popup just a "didn't install" message.

Currently waiting for battery to be at 80%+ so I can again unencrypt and do a full factory reset and wipe and start again if required.

Trying to see which root script I need to use in case I lose it. Hoping that unlock isn't affected.

I have noted that using root explorer and creating folder on the external sd as well as using linux to make folders when mounted through the phone causes lost folders or folders created under the internal SD card folder "external_sd" rather than on the card itself. I think my encryption experiments along with the new external SD issues I note have buggered things up. A clean start, although a pain, is probably a good idea and a better test.

Battery is just at 75% now so I should be able to proceed soon.