HTC G1 - The First Mobile Gets Update Android ICS
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| HTC G1 |
But unfortunately, if you use Android ICS update on the HTC G1, which is the first Android Open Source Project (AOSP), you will experience some of the features that are not functioning. Some of these features include WiFi, Bluetooth, screen rotation, and the display becomes less attractive.
However, the HTC G1 is still able to make calls and SMS. Android Ice Cream Sandwich update you can download via the XDA forums.

