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I have an HTC Thunderbolt running Android 2.3.4. I am no longer using my carrier, Verizon, so I cannot do an automatic update.

I know that my device can run Android 4:

"..the ThunderBolt was updated to Android 4.0.4 (Ice Cream Sandwich) and Sense 3.6."

I have the Android 4 SDK and Eclipse on my machine.

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If you hover your mouse over the update tag you used, and click the info link, you will find some helpful links you should check first. The faq link also will lead to valuable results. Have you checked either of them? – Izzy Feb 9 '13 at 23:47
I have progressed and I am here now:… I downloaded Ice Cream Sandwich, but I cannot install it on my phone. – user28180 Feb 10 '13 at 2:51
You should be able to update automatically over Wi-Fi even if the phone doesn't have active service with Verizon. – Michael Hampton Feb 10 '13 at 4:38

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