Coming from Froyo...

[delugeofspam]

Haven't bothered flashing a ROM since Cognition 4.3, which I've been extremely satisfied with.

Now, there's GB, ICS, JB, etc...

I'm probably headed to an ICS ROM, and I wanted to know what the pain is going to be like.

Obviously I'll be pulling a full back-up of the phone to my PC, but I want to lose as little as possible, so I guess my plan is as follows:

1. Filesystem backup via USB.
2. TiBu back-up of apps + generate update.zip
3. Nandroid back-up

4. ????

5. Boot in (new?) recovery, run TiBu update.zip
6. Boot phone, restore with TiBu.

Please fill in the blank, here.
What do I need as far as bootloaders?
Do I have to break out Odin or are there update.zips that will flash new bootloaders from CWM?
If I decide that I hate the new ROM and miss Cognition, am I going to be able to run Froyo again on the same bootloader or is it going to be a serious pain in the ass to get back to where I was?

I'm familiar with the (Froyo) procedures for flashing ROMs, kernels, modems, GPS firmware, etc. I jumped ROMs weekly for the first two months or so after I bought my Cappy (Dec 2010). I'm not a total n00b, but this seems slightly more involved than just Eclair -> Froyo flashing.

With the new bootloader, is the Captivate still indestructible? (apart from using a hammer, of course)

Thanks in advance to anyone with good answers.

 

[nirajpant7]

Haven't bothered flashing a ROM since Cognition 4.3, which I've been extremely satisfied with.

Now, there's GB, ICS, JB, etc...

I'm probably headed to an ICS ROM, and I wanted to know what the pain is going to be like.

Obviously I'll be pulling a full back-up of the phone to my PC, but I want to lose as little as possible, so I guess my plan is as follows:

1. Filesystem backup via USB.
2. TiBu back-up of apps + generate update.zip
3. Nandroid back-up

4. ????

5. Boot in (new?) recovery, run TiBu update.zip
6. Boot phone, restore with TiBu.

Please fill in the blank, here.
What do I need as far as bootloaders?
Do I have to break out Odin or are there update.zips that will flash new bootloaders from CWM?
If I decide that I hate the new ROM and miss Cognition, am I going to be able to run Froyo again on the same bootloader or is it going to be a serious pain in the ass to get back to where I was?

I'm familiar with the (Froyo) procedures for flashing ROMs, kernels, modems, GPS firmware, etc. I jumped ROMs weekly for the first two months or so after I bought my Cappy (Dec 2010). I'm not a total n00b, but this seems slightly more involved than just Eclair -> Froyo flashing.

With the new bootloader, is the Captivate still indestructible? (apart from using a hammer, of course)

Thanks in advance to anyone with good answers.

If you want to flash ICS or any newer rom, you should probably get Gingerbread via Kies, root, and install CWM. Many ROMs run on Gingerbread bootloaders, and many who didn't run GB beforehand, had display problems. After that, you can flash any rom you want

 

[patrokov]

I just went through this and wrote up my experience here.

http://forum.xda-developers.com/showthread.php?t=1800169

bottom line is that Slim Bean worked the best for me.

As for installation, this is a pretty good guide.
http://forum.xda-developers.com/show....php?t=1350266

I recently did this with Slim Bean from gingerbread stock.

1. Use Odin or Heimdall to install Speedmodem kernel. (The only difference between Gingerbread and Froyo is whether you flash the bootloaders too.)
2. When the phone reboots in recovery, go to mount > usb. Make a back up of the internal drive and copy Slim ICS to the internal drive and flash it
3. ** Warning ** step 2 will install an updated CWM and completely format the internal drive, so make sure you make the back up.
4. Because it wipes the internal drive, it'll go into a boot loop, so remove the battery and boot back to recovery.
5. Repeat step 2 but also copy and flash the slimcommon zip.
6. Reboot and make sure it works.
7. Repeat step 5 but using Slim Bean and Bean Common zips.
8. reboot and done

When I did this, under Slim ICS the IMEI was wrong and it wouldn't make phone calls and but under Slim Bean, it all worked fine.

One issue with Slim Bean is that some apps don't show up in the Market, however, I was able to restore them with TiBu just fine.

Alternatively you can go straight from stock to CM10. It's actually simpler because it doesn't format your internal drive. You just flash it, reboot to recovery, and flash again. CM10 wouldn't work right on my phone though. (See first link for details.)