Pieareround
Member
Before I begin, there are several places I could have posted this, including pc help forums, because this is a cross platform occurrence. However, it began on a rooted N7, so this seemed like a good place to start.
So, I was using adownloader to grab a couple torrents. Partway through my download, I went to wake up my tablet and check on my download status, and it would not wake up. Needless to say, that was pretty odd. I ended up powering it back up by holding the power button for 30 sec, and it worked fine, so I didn't think much of it. Between running a custom ROM and kernel and the fact that the N7 already has some quirks, it didn't seem like a huge deal.
However, after that, something altogether more frightening happened. I had just finished transferring my new music to my laptop and was doing some light browsing when all of a sudden, my laptop just lost all power. Not only that, but I also couldn't power it back on no matter how many times I pressed the button or how long I held it. Needless to say, I was panicking. In a bit of a last ditch move, I removed and reattached my laptop's battery and thank all of the deities, it powered back on.
Now, it wasn't a discharged battery on either count, as my laptop was on the charger and my N7 was plugged into my laptop. What could possibly have happened?
I have some speculation. It could have possibly been some form of malware, although I don't know of any sort of malware that a) affects both Android and Windows, can b) run without its host file being accessed, and c) cause a sudden shutdown requiring special action to get the device to power back up. Just in case, I have reinstalled my ROM on my N7 and done a system restore and am currently running a full system scan with MSE on my laptop.
The other speculative possibility is that it was, in both cases, a USB power surge. In both cases, the tablet was connected to the computer via a powered USB 3.0 port. Such an event could conceivably trigger failsafes on the tablet, the computer, or both at the same time, causing the sort of deep shutdown I encountered in both cases. Evidence is better for this possibility, I think. Besides the tablet being connected both times, I had to take special steps to power up both devices. On the computer, it was pulling the battery. On the N7, it was holding the power button for 30 sec (which seems to be more or less analogous to pulling the battery). Also, the cable I used to connect the two (ASUS OEM cable) has traveled with me a lot, and been coiled and tangled more than I'd like. Finally, the N7 is capable of charging at 2.0 amps, while most powered USB ports can supply 500 milliamps. If my kernel (franco kernel) were, say, forcing fast charging over PC USB, that could lead to some trouble, especially on a laptop. I don't remember if franco kernel can do that, but it's possible.
So, any thoughts or speculation?
TL;DR: After downloading some torrents on my N7, it shut off suddenly. After transferring those files to my computer, my computer shut off suddenly. Likely possibility: USB power surge, as the N7 was connected at both times. Thoughts?
So, I was using adownloader to grab a couple torrents. Partway through my download, I went to wake up my tablet and check on my download status, and it would not wake up. Needless to say, that was pretty odd. I ended up powering it back up by holding the power button for 30 sec, and it worked fine, so I didn't think much of it. Between running a custom ROM and kernel and the fact that the N7 already has some quirks, it didn't seem like a huge deal.
However, after that, something altogether more frightening happened. I had just finished transferring my new music to my laptop and was doing some light browsing when all of a sudden, my laptop just lost all power. Not only that, but I also couldn't power it back on no matter how many times I pressed the button or how long I held it. Needless to say, I was panicking. In a bit of a last ditch move, I removed and reattached my laptop's battery and thank all of the deities, it powered back on.
Now, it wasn't a discharged battery on either count, as my laptop was on the charger and my N7 was plugged into my laptop. What could possibly have happened?
I have some speculation. It could have possibly been some form of malware, although I don't know of any sort of malware that a) affects both Android and Windows, can b) run without its host file being accessed, and c) cause a sudden shutdown requiring special action to get the device to power back up. Just in case, I have reinstalled my ROM on my N7 and done a system restore and am currently running a full system scan with MSE on my laptop.
The other speculative possibility is that it was, in both cases, a USB power surge. In both cases, the tablet was connected to the computer via a powered USB 3.0 port. Such an event could conceivably trigger failsafes on the tablet, the computer, or both at the same time, causing the sort of deep shutdown I encountered in both cases. Evidence is better for this possibility, I think. Besides the tablet being connected both times, I had to take special steps to power up both devices. On the computer, it was pulling the battery. On the N7, it was holding the power button for 30 sec (which seems to be more or less analogous to pulling the battery). Also, the cable I used to connect the two (ASUS OEM cable) has traveled with me a lot, and been coiled and tangled more than I'd like. Finally, the N7 is capable of charging at 2.0 amps, while most powered USB ports can supply 500 milliamps. If my kernel (franco kernel) were, say, forcing fast charging over PC USB, that could lead to some trouble, especially on a laptop. I don't remember if franco kernel can do that, but it's possible.
So, any thoughts or speculation?
TL;DR: After downloading some torrents on my N7, it shut off suddenly. After transferring those files to my computer, my computer shut off suddenly. Likely possibility: USB power surge, as the N7 was connected at both times. Thoughts?