We have some good and bad news this week for owners of the HTC Sensation 4G here on T-Mobile‘s HSPA+ network. While we’ve heard plenty of good news from both HTC, and T-Mobile regarding updates to Android 4.0 Ice Cream Sandwich on the device, today we’ve learned that T-Mobile had to delay the Sensation’s update.

Just yesterday T-Mobile posted the update details and instructions to their forum, then later last night over on Facebook either T-Mobile or a sales rep posted some pretty detailed information regarding the update process, and that it had been sent back to HTC for some fixes. What this means it it could possibly be another 4-6 weeks before we see ICS for the HTC Sensation 4G officially. With HTC rolling out updates to multiple AT&T phones that were cleared and pushed out, this shows they are ready to continue with the rest of the devices as long as they don’t have similar issues.

I did mention good news above, so what is the good news? Popular developers CyanogenMod have opened up their sources and are officially building nightly ROM’s of CM9 Android 4.0.4 ICS for the Sensation, and users should get that if they’d like some stock Android or don’t want to wait for HTC and T-Mobile. This means users can compile Android 4.0 ICS for the Sensation with CM9 if they’d like, or get many of the custom ROM’s available from RootzWiki or XDA.

Until we hear more from T-Mobile, or see another leak users will have to wait another month or so for something to officially roll out to the Sensation 4G. In the meantime try some CM9 and let us know what you think. I’d start here for ROM’s.

[device id=60]

[via AndroidandMe]