We know that an official update to Android 4.0 is in the works for the Motorola Droid Bionic handset. A new OTA update has leaked via “Cheesecake” for the Droid Bionic and the software version is being referred as 5.9.905.XT875. No, this is not Ice Cream Sandwich update. The Android OS version stays on Gingerbread (v2.3.4). In late April, Motorola Feedback Network sent out Droid Bionic soak test invites and the build number was supposed to be 5.9.904 for the next update.
The source couldn’t provide the changelog of the leaked OTA update v5.9.905. There’s a slight change to the CDMA radio. According to the reports, if you update to 5.9.905, you can still use the .902 fastboot files to return to .902. You need to be on stock .902 for in order to flash the v5.9.905 build. You can find an SBF file that will take you back to .902 here. You can download the leaked build v5.9.905 of the Motorola Droid Bionic handset from the link provided here at below.
At the moment, no one’s quite sure when the Ice Cream Sandwich update will be out for the Bionic. It looks like the device will be getting at least one more maintenance update before making the jump to ICS. According to the carrier’s timeline for updates, the ICS update should begin rollout in 3rd quarter of this year.
Source: Droid Forums