I usually do a full wipe via fastboot before flashing different ROMs, but I'm hearing a lot of reports of success flashing between CM 6 and the Remix ROM without wiping. In fact, I am beginning to wonder if wiping was the reason my APN got reset while many other commenters had not issues. (For example, if someone didn't wipe and flashed on top of a ROM with bizho set, perhaps nothing was changed. But when I fully erased my phone and flashed a ROM with the mopera APN listed above the bizho APN...)
I unzipped CM6.1 stable and confirmed that the bizho APN is listed above the mopera APN.
CM 6.1 stable can be downloaded here. To install, first do a nandroid backup of your current ROM. Next, if your current ROM is based on Android 2.2 Froyo, don't wipe anything but flash CM 6.1 directly on top. If all works fine, then no need to do anything else. If the phone is slow, laggy, boot loops, or you get lots of FCs, then you'll have to wipe and do a clean install. Also, not wiping can sometimes result in duplicate contacts. If you notice this, you'll have to wipe and do a clean install.
I know a lot of you are interested in using the new SPL and radio that came with the US T-Mobile official Froyo release because it gives the phone an extra 15 MB of RAM, which in the context of this device is absolutely huge. People do have it working with CM 6 or with the official ROM, but I've been waiting for a the next stable release of CM6. Now that this has happened, I'll keep an eye on how the work proceeds.
For anyone wanting to do this, here are some issues you should be aware of:
- This is not nearly as simple as flashing a new ROM, if anything does wrong, the phone will be bricked.
- A patched kernel is needed.
- You won't be able to use 99.9% of the current ROMs
- If you decide to go back, it will be a bit of work because the SPL is perfect (good thing I still have my goldcard).
- You'll lose the ability to fastboot, meaning you can't remote boot a recovery in the event your recovery gets erased, which is something that has been known to happen with ROM Manager/CM6/clockwork recovery
- There is a hacked version of the SPL that allows the fastboot erase command to do a full and proper wipe but it was "modified with HTC Dreams in mind." The modified SPL is 1.33.0013d.
- Probably something else I'm forgetting.
I am also waiting to hear the details of Android 2.3 Gingerbread to find out what bits of it, if any bit of it at all, will be useable on the HTC Magic.