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When I connect my Android 4 phone (Galaxy Nexus) to a computer using USB, the storage of the phone is automatically mounted on the computer. How can I connect my phone using USB for charging only? In Android 2.x I had to explicitely choose "USB storage", in Android 4 there is only the choice between MTP and PTP? ):

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It should charge it automatically when it's plugged in. Are you using a USB cable that came with the phone? – Secko Oct 13 '12 at 1:26
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the problem is not that it wouldn't charge, but that it does not only charge, but also the internal storage is mounted on the computer. – stefan.at.wpf Oct 13 '12 at 7:46
Well, that's exactly what's suppose to happen. You can umount the devices fs and than leave it to charge without having access to it's storage. – Secko Oct 13 '12 at 12:14
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Actually on my HTC Desire with Android 2.3 that was different, I could choose on the phone whether to mount the storage or not. Nice thing if you attach your phone on a foreign computer... – stefan.at.wpf Oct 13 '12 at 13:31
Aha, now I understand why you want that feature. Well, this is a feature of Android 2.3. Here is a person with the same question, check it out: android.stackexchange.com/questions/27632/… – Secko Oct 13 '12 at 21:45
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1 Answer

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When your phone is plugged into a computer there should be a USB symbol in the notifications bar. Tapping the notification associated with this should allow you to switch between MTP/PTP (whichever you have selected in settings) and "just charge".

EDIT: apologies, it looks as though this is an HTC-specific thing, and not general. I'm new here - should I leave this answer with this edit, or delete the answer?

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My phone (Nexus S, 4.1.2) doesn't have this. Saying what phone/version of Android this applies to would add to your answer. – Peanut Dec 3 '12 at 2:09
Apologies - it looks as though this is an HTC-specific thing. – Simon Waldman Dec 3 '12 at 8:52
Unsure, personally I'd leave it, there's a lot of HTC phones out there this could be useful for. – Peanut Dec 3 '12 at 11:44

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