Wow! Please! Do it again!: SGS2 + CM9: Flash 20120709 Build

Monday, July 9, 2012

SGS2 + CM9: Flash 20120709 Build

Faced my first soft brick today. I would never ever use Siyah Kernel with ROM Manager again!

1. Create backup via ROM Manager. BIGGEST MISTAKE EVER! Apparently I shouldn't be using ROM Manager with Siyah (which comes with the CWM app). Phone shut down and all attempts to revive it proved futile. No doubt, it's a soft brick! Screen only flickers with a white screen every few seconds. Unable to bring up recovery mode (Vol Up + Home + Power).
2. Tried (Vol Down + Home + Power) and able to bring up Download mode.
3. Downloaded CM9 Resurrection Edition (cm-9-20120420-ODIN-galaxys2.tar.md5)
4. Plugged in USB cable.
5. Killed both Windows processes related to Kies (Odin doesn't play well with Kies).
5. Started Odin3 v1.85
6. Click on PDA, selected cm-9-20120420-ODIN-galaxys2.tar.md5, clicked Start.
7. Phone rebooted with the yellow triangle.
8. Manual reboot into recovery
9. Restored backup from 30th June 2012 (prior to flashing Siyah Kernel).
10. Tried using USB Jig to get rid of the yellow triangle, but it doesn't seem to work anymore. Looks like CM9 Resurrection Edition came with ICS bootloaders? Aw, man!

Now, the usual steps to upgrade CM9 to the latest nightly + latest modem:

1. Copied cm-9-20120709-NIGHTLY-galaxys2.zip to internal SD card.
2. Verified MD5 sum b70209f77b0d2a550c348c33b73b7851
3. Reboot into CWM Recovery.
4. install zip from sdcard > choose zip from internal sdcard
5. Choose cm-9-20120709-NIGHTLY-galaxys2.zip and confirm.
6. Wipe cache partition.
7. Advanced > Wipe Dalvik Cache.
8. Reboot.
9. Reboot into CWM Recovery, again.
10. Flashed LPX modem. CM9 Resurrection Edition only came with LPQ modem.
11. Reboot.