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XA2 asks usb-pc-mode when connected to a charger, and it doesn't charge.

asked 2020-05-06 13:16:53 +0300

ThijssjihT gravatar image

When I connect my phone to a charger, it sometimes asks if I want media transfer or developer mode or charging. When this happens, it charges really slowly (about a percent per hour), or it even drains very slowly. After a while, it tells me it has to little current to charge. The phone doesn't get hot, even when left in the case, so it isn't drawing a lot of current and using or wasting it.

I don't suspect my charger and cable, because it are the official charger and cable, they look as new, and they are just a few months old. Above all, it never happens when it was under a day ago that I restarted my phone. Only when my phone has been running for a while. Restarting the phone fixes it for a while. The problem started after the 3.3.0 update. Before 3.3.0 I never had any problem like this.

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Similar or same issue with my Xperia X and 3.3. I fixed it by forcing the menu choice to charge only...it works fine then, but for some reason doesn't seem to charge unless it is forced to charge only mode.

Oldmil ( 2020-05-06 14:30:48 +0300 )edit

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answered 2020-05-06 18:03:47 +0300

spiiroin gravatar image

Sounds like charger type detection error - phone can't figure out whether it is connected to a pc or a charger.

Sometimes some devices will recover from this, but IIRC xa2 and few other devices can also enter into a persistent "no idea what is connected" state (and probably draw no / less power than otherwise would be allowed) -> the cable needs to be physically detached (and attached to try again).

NB Whether/when/how usb mode is selected can hide the issue to some extent, but should have no effect on charging itself.

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This is exactly my problem. From your description it sounds like it is a hardware problem. But weird thing is, I don't have problems when my phone hasn't been running for more than a day. Also, the problems started very soon after I did the update to 3.3 about 10 days ago. I never had a problem before. What do you recommend?

ThijssjihT ( 2020-05-07 14:36:24 +0300 )edit
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Asked: 2020-05-06 13:16:53 +0300

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Last updated: May 06 '20