READ THIS FIRST
Finally Working Bluetooth problem
For ATOM/ATOM PURE ONLY
Download link moved to post #2
Step by step upgrading
NOTE: These steps only apply if you have an ATOM/ATOM Pure.
Basically, there are three steps to flash a custom ROM to your ATOM.
1. Choose and download your choice of custom ROMs
2. Flash the custom ROM to your Atom using the Device Software Update Utility (DSSU)
3. Flash the custom ROM using MiniSD
Preparation
Backup your personal information using a program such as PIM Backup (freeware). Also make sure your phone has at least a 50% charge. You need M$ ActiveSync 4.5 for XP or Windows Mobile Device Center for VISTA and 7 to upgrade your device through PC.
Please read through this guide and download the all the necessary files beforehand. That way, you know exactly what you're getting into.
Choose and download your custom ROM
There are many, many custom ROMs out there for the Atom.
Look through the threads and find a ROM that you like. Custom ROMs differ in their preinstalled software, system settings, performance tweaks, and more.
ROMs usually come compressed in a .zip file. Extract the downloaded ROM file to somewhere on your hard drive temporarily in preparation for the next step.
Flash Custom ROM Using DSSU
Copy the custom ROM file (usually came with 6 files) to C:\WINDOWS\Temp folder you just extracted.
Once you've got everything hooked up correctly, run the Device Software Update Utility (DSSU).exe program inside of the C:\WINDOWS\Temp folder you just copied. Follow the onscreen instructions to flash the custom ROM to your phone. Reboot your phone at the end and you're finished. Enjoy the new custom ROM!
In case you can't update the ATOM in active mode, you may need to update by entering bootloader mode. Hold the down power and camera button and use your stylus to press reset button at the same time until you see monochrome bootloader screen. Then connect your phone via USB cable to your computer.
Follow the onscreen instructions to flash the custom ROM to your phone. Reboot your phone at the end and you're finished. Enjoy the new custom ROM!
Flash Custom ROM Using MiniSD
*Not recommended
Here's the step how to flash your Atom using MiniSD.
1. Extract downloaded custom ROM to somewhere on your harddrive.
2. Cut first 12byte header of diskimage_Ver.nb0 using hex editor.
3. Rename diskimage_Ver.nb0 to diskimg.nb0
4. Rename ExtendedROM.img to extended.img
4. Copy both files diskimg.nb0 and extended.img to your miniSD
Now, hold the down power and camera button and use your stylus to press reset button at the same time until you see monochrome bootloader screen. The Atom will flash the new ROM automaically. Once it done, setup the device and enjoy the new custom ROM.
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