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Sapphire 1.0.0, a superlative custom ROM for the Motorola Droid, was just released. You can upgrade to it via ROM Manager using the steps I previously wrote. Just substitute build 1.0.0 for 0.8.4. You still have to downgrade to ClockworkMod 2.0.1.3 to update using ROM Manager (i.e. ClockworkMod 2.5.0.1. won’t reboot your phone when installing this rom).

I just upgraded (I wiped cache and data, just to be sure), and so far things are working very well.

For the past several months, I have been a huge fan of running CyanogenMod (CM5, mostly) on my rooted Motorola Droid. Unfortunately, the ROM’s latest incarnations (CM6 RC1 and RC2)—which correspond to its move to the Froyo source code base—have not run stably on my phone. Despite my efforts to fix the problems (reflashing, wiping data and cache, fixing permissions, switching kernels), apps under CM6 keep crashing. Luckily, I found a great alternative, a Froyo-based ROM that has been much more stable than CM6: Sapphire 0.8.4. Sapphire is based on the Froyo source code, like CyanogenMod, and is completely independent of CyanogenMod’s codebase.

While CyanogenMod has more interface and application tweaks than Sapphire, Sapphire runs more stably on my phone (compared with CM6 RC1 and RC2), which is far more important. One of Sapphire’s killer features is that it integrates the basic overclocking/underclocking mechanisms found in the SetCPU app, which enables you to overclock without SetCPU (unless you wish to set up profiles). The rest of the Froyo goodness, including the JIT compiler, wifi tether, Exchange support, and Chrome-to-Phone, are all included.

If CM6 isn’t working well for you, I highly recommend trying out Sapphire. I found it a little tricky to install via ClockworkMod Recovery/ROM Manager, because you have to downgrade ClockworkMod Recovery to do so. The instructions below reflect the steps I took to switch from CM6 RC1 to Sapphire 0.8.4. If you’re new to flashing ROMs on your phone, know that it requires root access. Also, Sapphire appears to be compatible with the Motorola Droid only at this time.

1. Install/upgrade to the latest version of the ROM Manager app via the Android Market.
2. Open ROM Manager.
3. Due to an incompatibility of the latest ClockwordMod Recovery, Sapphire will install with ClockworkMod 2.0.1.3 or earlier. To flash this recovery, scroll to the bottom of ROM Manager’s main screen and select “All ClockworkMod Recoveries” from the “More Recoveries” section.
4. A recovery selection popup will appear. Choose “2.0.1.3″ and click the “OK” button.
5. ClockworkMod 2.0.1.3 will be flashed to your devise. (If for some reason the recovery does not install, use ROM Manager to “Flash Alternate Recovery” and then repeat steps 3 and 4.)
6. From the “ROM Management” section in ROM Manager, select “Download ROM”.
7. Select “cvpcs” under the “Free” section.
8. Select “Sapphire 0.8.4 (Froyo)”, which is the latest stable release at this time.
9. A screenshots popup will appear. Click the “Download” button.
10. A kernel selection popup will appear. Choose a kernel from the list. I use P3Droid’s 125-800mhz Low Voltage kernel. You may choose one with a faster top speed if you wish. Click the “OK” button.
11. A theme selection popup will appear. Choose a theme from the list. I stick with the “Stock (Default)” theme. Click the “OK” button.
12. A ROM addons selection popup will appear. Check “Google Apps” so that Google’s standard apps (including the Market) will be installed. Check the “Market Hack”, too. Until Motorola releases an official Froyo build for the Droid, copy-protected apps will not show up  in the Market when you run a Froyo ROM. The Market Hack fixes that. Click the “OK” button.
13. ROM Manager will download the necessary ROMs.
14. When the downloads complete, a ROM pre-installation popup will appear. Check both of the options: “Backup Existing ROM” and “Wipe Data and Cache”. Always back up your current ROM prior to flashing a new one. Sapphire’s developers say that it is important to wipe data prior to the install. Froyo will re-download your apps from the Market after a reinstall, so it isn’t as much of a pain as you think it might be. Click the “OK” button.
15. ROM Manager will reboot into recovery and install all the ROMs you selected.
16. When the phone reboots again, you will be able to log into your Google account and set everything up. The Market will download all your previously-installed apps during the sync process. Just be patient!

I prefer the ADW Launcher to the launcher that Sapphire comes with. ADW Launcher is a free download from the Android Market.