[EVO 4G Q&A, Help & Troubleshooting] nYdGeo:
Synergy RC2 + Godzilla Mode - installing, and what you 'might' expect.

(Preface: Search for a download a copy of Cirus' VR_SUPERWIPE.zip, and leave that on the root of your SDcard for as long as you intend to be flashing ROMs on your phone.)

To install the Synergy RC2+Godzilla Mode ROM, copy all of the contents of your SD card onto your computer. Then partition and format your SD card. I created a 1024MB ext2 partition, assigned 32MB for swap (which won't be used until kernel support is there, but its coming), and the rest to the regular FAT partition. Once that was completed, upgrade the ext2 partition to ext 3. Do not upgrade it to ext4 at this time. Its better and we want to, but its not supported yet.

Now, copy all of the contents back onto your SD card. In recovery, wipe everything (except SDcard) in Amon Ra's "Wpe" section once. I then recommend that you flash Virus' VR_SUPERWIPE.zip file. Now you're ready to flash a ROM.

Flash the ROM itself. Expect it to take longer than usual to flash. Reboot when prompted, and now expect to wait far longer than usual for it to boot up. This is often 15-20 minutes. Along with the usual, it is creating ext2 images of some of the partitions that exist in the system memory, and that takes time.

Once it boots completely, go through the basic setup wizard to get your phone up and running but don't start installing/restoring all of your apps yet.

Search the Synergy thread, find and download the dta2sd for Synergy RC2+GM, and flash it in recovery. This will replace the a2sd script thats in their by default, and will move your dalvik back into system memory by default.

Boot up, and download A2SDGUI from the market. Launch it, and on the tab it opens on, select to enable zipalign on each boot. **Optional: on the memory tab, choose your preferred memory profile (I used Agressive).** Now reboot, and when it comes back up, install/restore your apps.

NOTE: when I began installing/restoring apps, I started getting low memory warnings. I opened A2SDGUI, went to the information tab and I did indeed have very little system memory available. At this point, I went to the Dalvik tab and selected 'Dalvik on SDcard', and pressed 'move and rebuild'. It does its thing and reboots the phone. This will also result in a longer than normal startup, and it may reboot during the initial boot-up. You are not in a boot-loop, so don't get nervous about it.

Once it came back up I had sufficient memory available. Also, based on what I read in other pposts I expected a performance hit by relocating the dalvik cache to my SDcard (its in the ext 3 partition with the apps), but I did not see one at all.

Finish installing your apps, and enjoy a nice ROM that benchmarks through the roof!

**NOTE 2: Although the Synergy RC2+GM does achieve very nice Quadrant scores, I personally found it to be quite slow to respond...laggy. Choosing the Agreessive memory profile in A2SDGUI (DTa2sd) did help with this. But, if I were to do it over again, I'd leave that setting alone and run the "V6_SuperCharger_for_Abdroid" shell script in the Terminal Emulator instead. I used that in the Synergy RC2 no-GM, which was not as laggy to begin with, but after running that script there was zero lag anywhere. It is simply an amazing script.

Regarding battery life, a few users reported horrible battery life, most reported as good as the no-GM version, and a few reported better battery life that the no-GM version. I say try it; either it will be good or bad. Some folks had to flash and build the ROM 3-4 times before getting that magical install that runs great.

One more thing. I only install about 40 apps, including all three Angry Birds. A single nand back-up of this ROM as setup on my phone is 1.09GB in size.

I hope that this helps clarify things. Thank you for your time.