Android

CyanogenMod 7 On Rogers Captivate

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Mar 312011

The CMSGS team has for the last month been releasing beta versions of their port of CyanogenMod for the Samsung Galaxy S line of phones, including the Captivate. CyanogenMod is interesting because it is the first ROM for the SGS that can actually be described as developed by real developers. They have taken the source code for Gingerbread on the Nexus S posted by Google to git.android.kernel.org, and have been actively porting it to the SGS hardware.

Previous ROMs for the SGS lineup have been more accurately described as “cooked” by “ROM chefs”, as opposed to developed. Essentially these chefs take already compiled versions of the ROMs released by carriers, unzip them, strip out the crap apps, add a custom theme, and a kernel, zip it back up, and call it a new ROM. The only real development was happening on the kernels, for which Samsung had to release the source code. But CyanogenMod is built entirely from source, not just the kernel. It’s a far more ambitious project.

If you’re interested in trying out CyanogenMod, the install instructions, necessary files, and known bugs can all be found in this post on the CyanogenMod forums. Please, read ALL of the post, and DO do the optional step of installing the Gapps, unless you like the idea of not having the Android Market. Please note that this is still a beta release, and the battery life is poor. But it’s getting better with each release.

Removing The AT&T Boot Screen From A Samsung Captivate

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Jan 162011

Anyone who has played around with custom ROMs on their Samsung Captivate (particularly if you started with the Rogers SGH-I896) knows that there is an AT&T logo when you first boot the phone. It’s mildly annoying for those of us who don’t actually have an AT&T phone. Well, I’ve found a solution.

First, an explanation of how the boot sequence works. When you first power on the phone, it’s the responsibility of the boot loader (similar to a BIOS on a regular computer*) to display an initial graphic on the display. The boot loader then loads the kernel, and then it’s the kernels turn to display a graphic on the screen. The kernel loads the rest of the ROM, and then the ROM gets a chance to display a boot logo or even boot animation. The instructions below will show you how to change the first boot logo.

ROM Of The Moment: Assonance

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Dec 062010

I’ve tried out a lot of ROMs in the last few weeks. Cognition was a great ROM, but is no longer actively developed, the developer having moved on to Perception. Perception showed a lot of potential up to and including build 4, but all builds after that have been unstable to the point of unusability. Axura CE (Captivate Edition) showed promise, but then some schoolyard drama appears to have killed off that project.

But the ROM of the moment and a serious contender for being my go-to ROM is currently Assonance 3.1.

Recovering A Captivate From Near-Dead

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Nov 212010

A reader recently contacted me looking for advice with his new Captivate. He was concerned he’d bricked it, but the phone was getting as far as recovery mode, which meant that I was confident it could be saved. I met him at a coffee shop, and we spent some time recovering his phone. I learned some stuff, and have some thoughts that are worth sharing. But first, I’ll explain how to do this yourself.

Fixing GPS On Cognition

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Nov 202010

Samsung Captivate users who have reflashed their phones with Cognition, the GPS functionality tends to take a serious nosedive compared with the stock Rogers firmware. However, gdmuscle from the XDA Developers forum was able to figure out which files to pull from the original Rogers ROM that when used on the Cognition ROM seem to result in near perfect GPS performance.

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