Develop Bugs

[Q] OTG Charge + USB Host Plug and Unplug Timur Alternative

Hello all,
I have a nexus 7 2013 and I am looking for a kernel that supports otg plus charge. Now, I know elemental x (by flar2) and a few others have this but the ones I have found do not support hot swap, or unplug and replug without rebooting. I am pretty sure Timurs kernel supports this but he wants $36 to buy it and I would rather not spend the money without trying it out first. Specifically, I have a fixed in-car installation and a febon100 UVC video grabber to display a backup camera. When the car shuts off, the febon will be disconnected from the usb side of the nexus, and the only way to reconnect it is to reboot the tablet with power connected. Anyone have any ideas? Thanks for the help.

Ok so I figured part of it out. After the device looses and regains power, these two commands simulate the usb disconnect and reconnect and seems to work (only tried it a couple times)...
Code:
echo "2-0:1.0" > /sys/bus/usb/drivers/hub/unbind
echo "2-0:1.0" > /sys/bus/usb/drivers/hub/bind
However, I have another issue. I am using the elementalx kernel on android 4.4.4 (currently on Carbon rom but have tried stock and other roms as well with same outcome). When the tablet reboots with the otg cable connected, it does not charge when it first starts up. To charge it, I have to physically unplug and replug the cord in the nexus. Any ideas?

bigc9731 said:
Ok so I figured part of it out. After the device looses and regains power, these two commands simulate the usb disconnect and reconnect and seems to work (only tried it a couple times)...
Code:
echo "2-0:1.0" > /sys/bus/usb/drivers/hub/unbind
echo "2-0:1.0" > /sys/bus/usb/drivers/hub/bind
However, I have another issue. I am using the elementalx kernel on android 4.4.4 (currently on Carbon rom but have tried stock and other roms as well with same outcome). When the tablet reboots with the otg cable connected, it does not charge when it first starts up. To charge it, I have to physically unplug and replug the cord in the nexus. Any ideas?
Click to expand...
Click to collapse
you find a fix for this? i will try that command you posted but i need it to run at startup automatically if it works.

quicksilvr2006 said:
you find a fix for this? i will try that command you posted but i need it to run at startup automatically if it works.
Click to expand...
Click to collapse
Just use tasker to run the commands at startup...

Does this set of command still work with lollipop? I just tried a few times and it seems to have made no difference.
Thanks in advance!

Yeah im in the same boat. Soooooo many problems with this ****ty tablet. Knew i should have installed an iPad. They said this is the 'best' of android. It's ****ing terrible. People who are thinking of installing an android into your car? A word of advise. Dont do it.
-guy who has worked on nexus 7 2012, AND 2013 car install for more than a year.

jimmng said:
Yeah im in the same boat. Soooooo many problems with this ****ty tablet. Knew i should have installed an iPad. They said this is the 'best' of android. It's ****ing terrible. People who are thinking of installing an android into your car? A word of advise. Dont do it.
-guy who has worked on nexus 7 2012, AND 2013 car install for more than a year.
Click to expand...
Click to collapse
Do you feel better now?
Sent from my LG-D850 using XDA Free mobile app

It's been almost a year any way to accomplish charging without having to physically unplug the OTG and plug it back in. Im have timurs kernel but I want to use elemental so I can use marshmallow. Timur accomplished it somehow. Someone has to know how.

Qi Wireless Charging
samt3 said:
It's been almost a year any way to accomplish charging without having to physically unplug the OTG and plug it back in.
Click to expand...
Click to collapse
It is actually trivially easy to accomplish - on any kernel - it is called Qi Wireless Charging.

Android 6.0.1 kernel Quanta-V7-Flo with 'USB Host Mode Charging'
samt3 said:
It's been almost a year any way to accomplish charging without having to physically unplug the OTG and plug it back in. Im have timurs kernel but I want to use elemental so I can use marshmallow. Timur accomplished it somehow. Someone has to know how.
Click to expand...
Click to collapse
Test results for Android 6.0.1 Stock + Kernel 'Quanta-V7-Flo' with active 'USB Host Mode Charging' and inactive 'fast charging' (N7 is only is use when its connected to the USB Power):
Ampere values checked with one of the cheap 'USB Charger Doctor Voltage Current Meter Mobile Battery Tester':
0.45 A for N7 only
0.61 A for N7 + USB Ethernet adapter
I don't use the N7 in a car setup but this should be important for such setups:
-If the USB Y cable is connected before powering on the N7, the USB device was usable in Android after startup without need for reconnecting the USB cable
-If the USB was unplugged and reconnected the device, it was usable in Android
-Important: If the N7 goes to sleep, it can't recover the USB charging and USB devices after waking. You should set the display timeout to always on, which is right for a car setup or am I'm wrong?
I'm happy! :good:

I tried quanta. It does work except for on initial boot. Have to unplug and plug it back in to charge. Then it works fine turning the key on and off for power. However it doesn't mount the OTG devices again without unplugging it and plugging it back in.
Edit: I also have another problem was at work and didn't have time to add it. But my Nexus thinks it's still charging after disconnecting it from power supply through the OTG cable. When I turn the key off it quits charging for about 1 second then switch's back to saying it's charging again and continues to say it's charging even after cycling the key on and off. Only way to fix it is to disconnect the OTG straight from the tablet and plug it back in or boot it into recovery then back to system. Has done this thru multiple roms and kernels. Only kernel it doesn't do it on is Quanta. The thing is it didn't use to do it at all no matter what rom or kernel I was using. I even went as far as to change the charging port board cause I had another one in a old junk Nexus I have and still didn't fix it.

samt3 said:
I tried quanta. It does work except for on initial boot. Have to unplug and plug it back in to charge. Then it works fine turning the key on and off for power. However it doesn't mount the OTG devices again without unplugging it and plugging it back in.
Edit: I also have another problem was at work and didn't have time to add it. But my Nexus thinks it's still charging after disconnecting it from power supply through the OTG cable. When I turn the key off it quits charging for about 1 second then switch's back to saying it's charging again and continues to say it's charging even after cycling the key on and off. Only way to fix it is to disconnect the OTG straight from the tablet and plug it back in or boot it into recovery then back to system. Has done this thru multiple roms and kernels. Only kernel it doesn't do it on is Quanta. The thing is it didn't use to do it at all no matter what rom or kernel I was using. I even went as far as to change the charging port board cause I had another one in a old junk Nexus I have and still didn't fix it.
Click to expand...
Click to collapse
Did you try the glitch kernel?

0xcafebabe said:
Did you try the glitch kernel?
Click to expand...
Click to collapse
I've used it before but not on my current setup.

Assuming one of these kernels provides OTG + Fast Charging, what are the options for the Power-Down + Deep Sleep, then Power-Up + Wake?

[Q] Auto start when connect to charger

Hi,
Ive googled about this matter and cant seem to find a solution for the galaxy tab s lte but for other samsung devices since s3 is possible.
Ive also tried the Auto Power On app (paid apps) both of them didnt work and requested a refund.
It seems that we have to modify the file /system/bin/playlpm or /system/bin/lpm or /system/bin/ipod for this to work.
Ive tried everything and still doesnt work on the galaxy tab s lte.
What i need is for the tablet to boot upon connected to charger when the state is off. Now all i can see is the battery icon stating its charging but never boot into android.
Anyone have any idea how to make this work for the galaxy tab s lte?
Cheers.

Well it begs the question as to why in the world would anyone want this?
I wouldn't want my tab on every time I charge it.

I think you would need a custom rom, don't the apps you can download/buy, need your device to be already running so they can shutdown or run an app or change a mode when they detect you plugging in or removing the charger.
John.
ashyx said:
Well it begs the question as to why in the world would anyone want this?
I wouldn't want my tab on every time I charge it.
Click to expand...
Click to collapse

ashyx said:
Well it begs the question as to why in the world would anyone want this?
I wouldn't want my tab on every time I charge it.
Click to expand...
Click to collapse
Why would anyone need this? Let me answer you.
Some of us use our android tablets in cars ... There's app to make the tablet shutdown when u turn off the engine and the power is disconnected (tons of them).
But when u start the engine back and the power is re-connected, the tablet wont turn on. Right now the only solution i can do is to use tasker to airplane mode on the device when the display is off, and airplane mode off when the display turns back on. This saves power so that the tablet doesnt run out of juice overnight in the car.
So most of this has to do with in-car tablet systems that you want it to boot up as you start your engine. I can custom rom my tablet to run CM12 however even CM12 doesnt boot up, some settings needs to be changed and im not sure which part so i need some help on this.
Cheers.

ashyx said:
Well it begs the question as to why in the world would anyone want this?
I wouldn't want my tab on every time I charge it.
Click to expand...
Click to collapse
And btw .... iPhone iOS Behavior is exactly like this ... So no body is begging the question of why anyone would want this ... Just you i guess

arsyan said:
And btw .... iPhone iOS Behavior is exactly like this ...
Click to expand...
Click to collapse
Another reason not to want it then

LOL thats a good one ....
Anyway back to serious matter ... Any one out here can help me with this problem? I think it would help a lot others too that are looking for a solution. a CM12 solution would be great also coz i can flash the tablet with CM12.
Thanks in advance.

arsyan said:
And btw .... iPhone iOS Behavior is exactly like this ... So no body is begging the question of why anyone would want this ... Just you i guess
Click to expand...
Click to collapse
C'mon. You and I both know that this is a niche scenario, and normally it's a bad idea. If your running low enough on battery to run you device dead, you want it to charge a while before turning on. We've all been waiting on a dead phone to get a few percentage points charged so that way it doesn't die immediately upon startup.

I've been leaving my Tab S on a constant power supply in the car. This means I have to turn it on and off manually. I have been toying with using Tasker to turn the screen on/off based on connection with a BT device that would be powered by an switched power source.
The problem I get is warning messages about trying to charge the battery while it is too hot or too cold.

stm8 said:
I've been leaving my Tab S on a constant power supply in the car. This means I have to turn it on and off manually. I have been toying with using Tasker to turn the screen on/off based on connection with a BT device that would be powered by an switched power source.
The problem I get is warning messages about trying to charge the battery while it is too hot or too cold.
Click to expand...
Click to collapse
Why dont u try this app https://play.google.com/store/apps/details?id=com.as.powerchecker it will close the android once ur power is disconnected from the car ...
As for turning it back on when u start. Still no solution ...

Any help guys? Last time asking ...

Using Tasker and Secure Settings, I can get the tablet to turn the screen on and off when the power is connected. If rooted, you could turn Airplane Mode on and off in Tasker also. But short of a change in the firmware, I have no idea how to power off and restart based on external power connection.

From what I remember, when CM12 was still buggy... when you connect a charger when it was powered off, it would show the battery icon and automatically reboot into recovery. Of course that was a bug, so I don't really know.
-DUHA

Same here, did you find an answer?

Same here but no solution found
Iam trying to set my tablet to auto start/boot when charger is connected in mini usb port. I didnot find lpm.sh in root\system\bin folder to modify. But i found ilm file with below script. Plz tell how to modify to make powered off tablet to boot when charger is connected.
Script to start "pm" on the device, which has a very rudimentary
# shell.
#
base=/system
export CLASSPATH=$base/framework/ime.jar
exec app_process $base/bin com.android.commands.ime.Ime "[email protected]"

You can instruct init to reboot the device whenever charger mode is detected. Create a new .rc file or edit any existing one:
# /system/etc/init/off_mode_charge.rc
on charger
setprop sys.powerctl reboot,leaving-off-mode-charging
Source: https://android.stackexchange.com/q...ower-on-android-when-the-charger-is-connected

Device can no longer see computers, need some help figuring things out.

Ok, first off I chose Sprint because I believe that Boost Mobile is on the sprint network, but my phone doesn't specifically say sprint on it or anything, so I had no clue which of these device boards to post into. This is the exact page I got it on, if that helps. [link deleted - paranoid forum rules] - I will post specs of the device in a minute.
Alright, the issue with my phone, is that after I used a car charger 2 months after I got my phone, it suddenly stopped being able to connect to ANY computer ever again. I suspected it was PDA net at first cause that was the newest change I had done to my phone. So, a few days later, I could find now way whatsoever to fix it, and had to factory reset. This fixed my phone just fine.
Two months later, I was fed up with having battery issues all the time, this phone drains battery faster than my laptop, and its battery is 3.8 years old! I got an external battery that holds 20,000 mAh/74 Wh (Practically the same as my laptop battery too. ) that is from the LimeFuel company. I know that before I used it, my phone worked with my laptop just fine. I don't plug my phone in to my laptop all that often, especially now that I have a battery to use with it. However, I download large files on my phone with 4G to put onto my laptop because my home net is crappy, so a week after, I noticed that my phone lost the ability to communicate with computers, again. I then realized, it had to be the connections. The first time it happened was when I used a car charger, the second time, an external battery. Each time, my phone suddenly inexplicably lost the ability to communicate with a computer ever again. It can only see devices as a power source, nothing more. There's no missing software or drivers, it just doesn't register as anything to my computer. Like a power toggle so it can't tell the computer "Hey, I'm a device that you can transfer data with".
One more note; The first time this happened, I had activated developer options but had them turned off. I mean that I used USB Debugging mode once and turned all of that off. The second time, I hadn't even unhid the option yet, unhid after my phone broke again to try and fix but nope.
I did research on trying to fix it, without factory reset because a factory reset is USELESS, if it's going to happen every single time I use anything but the wall to charge it, right?
There was a topic online claiming that there is a menu under "Storage" in the settings. There isn't. It was a big fat lie. Or Android devs deleted it.
There was another topic, claiming that USB settings would be under some wireless and networks area. Nope.
Now, I remember that when my device would connect to the computer, it would let me change it from MTP to PTP, but after this happened, nothing. It doesn't even pop up anymore, nor does it ask. There is no where in the phone that these options even exist at all. It's like Android devs deleted access to these options for no reason whatsoever.
Another bit in that topic mentioned ‘USB Mass Storage’, which also doesn't exist. Here's the topic with everything I tried, if I'm allowed to give links at all. If not, well not my fault. Topics used to try and diagnose and fix issues, but failed;
[link deleted - paranoid forum rules]
[link deleted - paranoid forum rules]
(There were more but I can't remember them all, it's more or less the same as the two above)
"To prevent spam on the XDA forums, ALL new users prevented from posting outside links in their messages. After approximately 10 posts, you will be able to post outside links. Thank you for understanding!"
Translation: "To prevent spam, we want to hinder only legitimate users by making them post 10 units of spam first before they can get help with their issues by showing exact information and screenshots of their issues or steps taken given by other websites."
So. How do I get my phone to connect to computers again?
Why does it stop accepting data from computers after I use a car charger or an external battery pack?
Why would Google/Android devs choose to intentionally break your phone like this?
Code:
Hardware: L710T.03
Software: L710TVPU0AOA3
Model: SPH-LT10T
Android 4.4.2
Kernal: 3.4.0-1683363 (Ask if need more)
Build: KOT49H.L710TVPU0AOA3
Ask of need more.

VasVadum said:
Ok, first off I chose Sprint because I believe that Boost Mobile is on the sprint network, but my phone doesn't specifically say sprint on it or anything, so I had no clue which of these device boards to post into. This is the exact page I got it on, if that helps. [link deleted - paranoid forum rules] - I will post specs of the device in a minute.
Alright, the issue with my phone, is that after I used a car charger 2 months after I got my phone, it suddenly stopped being able to connect to ANY computer ever again. I suspected it was PDA net at first cause that was the newest change I had done to my phone. So, a few days later, I could find now way whatsoever to fix it, and had to factory reset. This fixed my phone just fine.
Two months later, I was fed up with having battery issues all the time, this phone drains battery faster than my laptop, and its battery is 3.8 years old! I got an external battery that holds 20,000 mAh/74 Wh (Practically the same as my laptop battery too. ) that is from the LimeFuel company. I know that before I used it, my phone worked with my laptop just fine. I don't plug my phone in to my laptop all that often, especially now that I have a battery to use with it. However, I download large files on my phone with 4G to put onto my laptop because my home net is crappy, so a week after, I noticed that my phone lost the ability to communicate with computers, again. I then realized, it had to be the connections. The first time it happened was when I used a car charger, the second time, an external battery. Each time, my phone suddenly inexplicably lost the ability to communicate with a computer ever again. It can only see devices as a power source, nothing more. There's no missing software or drivers, it just doesn't register as anything to my computer. Like a power toggle so it can't tell the computer "Hey, I'm a device that you can transfer data with".
One more note; The first time this happened, I had activated developer options but had them turned off. I mean that I used USB Debugging mode once and turned all of that off. The second time, I hadn't even unhid the option yet, unhid after my phone broke again to try and fix but nope.
I did research on trying to fix it, without factory reset because a factory reset is USELESS, if it's going to happen every single time I use anything but the wall to charge it, right?
There was a topic online claiming that there is a menu under "Storage" in the settings. There isn't. It was a big fat lie. Or Android devs deleted it.
There was another topic, claiming that USB settings would be under some wireless and networks area. Nope.
Now, I remember that when my device would connect to the computer, it would let me change it from MTP to PTP, but after this happened, nothing. It doesn't even pop up anymore, nor does it ask. There is no where in the phone that these options even exist at all. It's like Android devs deleted access to these options for no reason whatsoever.
Another bit in that topic mentioned ‘USB Mass Storage’, which also doesn't exist. Here's the topic with everything I tried, if I'm allowed to give links at all. If not, well not my fault. Topics used to try and diagnose and fix issues, but failed;
[link deleted - paranoid forum rules]
[link deleted - paranoid forum rules]
(There were more but I can't remember them all, it's more or less the same as the two above)
"To prevent spam on the XDA forums, ALL new users prevented from posting outside links in their messages. After approximately 10 posts, you will be able to post outside links. Thank you for understanding!"
Translation: "To prevent spam, we want to hinder only legitimate users by making them post 10 units of spam first before they can get help with their issues by showing exact information and screenshots of their issues or steps taken given by other websites."
So. How do I get my phone to connect to computers again?
Why does it stop accepting data from computers after I use a car charger or an external battery pack?
Why would Google/Android devs choose to intentionally break your phone like this?
Code:
Hardware: L710T.03
Software: L710TVPU0AOA3
Model: SPH-LT10T
Android 4.4.2
Kernal: 3.4.0-1683363 (Ask if need more)
Build: KOT49H.L710TVPU0AOA3
Ask of need more.
Click to expand...
Click to collapse
First off, after the factory reset and everything worked did you reinstall the pdanet?
Second, 20,000mah battery? Holy cow im jealous!
Forgive me if you have already tried these things but this is what i would do...
Did you reenable developer options and reenable adb debugging?
Did you uninstall and reinstall your phone drivers?
Is there an updated phone driver?
Have you tried a different usb cord?
Is there excess dirt or dust in usb charge port on your phone?
Does your usb charge port even work anymore or do you just charge external battery on wall?
Have you tried a different usb port on the computer?
Have you tried on another computer?
Have you tried updating computer drivers?
Have you enabled a fast charge tweak like on a kernel tweak app?
If none of these questions fix it then a workaround is downloading app called airdroid. You can wirelessly transfer files from phone to computer and back again without usb cord.
Let me know what worked please! Good luck!

ZipAddict said:
1. First off, after the factory reset and everything worked did you reinstall the pdanet?
2. Second, 20,000mah battery? Holy cow im jealous!
3. Did you reenable developer options and reenable adb debugging?
4. Did you uninstall and reinstall your phone drivers?
5. Is there an updated phone driver?
6. Have you tried a different usb cord?
7. Is there excess dirt or dust in usb charge port on your phone?
8. Does your usb charge port even work anymore or do you just charge external battery on wall?
9. Have you tried a different usb port on the computer?
10. Have you tried on another computer?
11. Have you tried updating computer drivers?
12. Have you enabled a fast charge tweak like on a kernel tweak app?
13. If none of these questions fix it then a workaround is downloading app called airdroid. You can wirelessly transfer files from phone to computer and back again without usb cord.
Click to expand...
Click to collapse
1. No, I never touched PDA net again.
2. Too bad forum rules say I can't be friendly and give you the link to it.
3. Read the topic you quoted. I did, only after my phone broke again. Except it's not adb debugging, it's USB debugging. Doesn't work, because the phone can't communicate with a computer anymore.
4. 5. 11. Yes I reinstalled drivers and no there were no updates.
6. 7. Nothing's wrong with the cable. I did try with others.
8. What does that even mean? Yes my phone's port works. Nothing's wrong with any hardware.
9. 10. I've tried different ports and different computers.
12. Can't, phone isn't rooted.
13. I'm not using this. My phone is not there for Google/Android to tell me I'm not allowed to use my USB port ever again. I'm also not going to wait 4 hours for a 4 GB file to transfer via my router to my computer nor am I installing some app software to my computer just to have wireless transfer. This is not a work around. This is an "Oh well, it's broken, guess you can't ever use USB ports again for data access!"
note; I tried all of these (except 12/13) before I ever came here looking for help.

2. I will google it
3. I didnt realize toggle to turn on usb debugging didnt work sorry. I just know it needs to be on for the computer to see the phone. This seems to be an area of problem possibly.
8. Lol! What i meant was did the area where u insert charger function properly. Only reason i asked is because some of those batteries charge on wall unit made specifically to charge the battery only not with charge.
12. Doesnt require root for basic settings like changing governor usually. Only to overclock/undervolt, etc.
13. Great answer! But i meant as a temporary fix until someone more experienced with this issue helps you.
I also figured listing all those things would help other people see what you had and hadnt tried before asking you next time. Wish i couldve helped more. Good luck

ZipAddict said:
2. I will google it
3. I didnt realize toggle to turn on usb debugging didnt work sorry. I just know it needs to be on for the computer to see the phone. This seems to be an area of problem possibly.
8. Lol! What i meant was did the area where u insert charger function properly. Only reason i asked is because some of those batteries charge on wall unit made specifically to charge the battery only not with charge.
12. Doesnt require root for basic settings like changing governor usually. Only to overclock/undervolt, etc.
13. Great answer! But i meant as a temporary fix until someone more experienced with this issue helps you.
I also figured listing all those things would help other people see what you had and hadnt tried before asking you next time. Wish i couldve helped more. Good luck
Click to expand...
Click to collapse
2. amazon dot com /External-20000mAh-Limefuel-LP200X-Flashlight/dp/B00OHZVN5U/ - It let me charge my phone 7-8 times fully before it was empty. Automatically stops when your phone is full.
3. USB debugging doesn't need to be on in order for a phone to communicate with a computer. This is only if you want to debug apps or use other developer tools. File transfer works just fine without it.
8. I still don't understand what you mean. My phone is not broken in any way. Nor is my battery. My external battery charges off any USB input, my phone charges off any USB input. My phone just can't communicate data wise between devices anymore via USB.
12. Fast charge isn't going to fix my phone. Unless it disables data communication, then I need to turn it off. All "kernal tweak apps" appear to require root. The top 5 google searches shown this.

3. Wasnt sure. Ive always had it on
8. Some aftermarket batteries dont charge while in phone hooked up to charger. They come out of phone and into specialized charger for battery only not phone with it, so that it can charge the larger battery in a matter ofan hour or so is what i have been trying to say. But its obvious thats not the case for you now since i asked and clarified. If this was the case one might not know that the small usb port on their phone needed cleaning to make a good connection because they literally dont use it to charge their phone. They charge their phone with external battery charger. You see?
12. On my custom rom and on my trickstermod app it does say fast charge disables data communication and that you have to turn it off for computer to recognize phone again. This fast charge mode only works when connected to computer not wall charger it says
Wish i could be more help but im out of ideas. Good luck

Update to the current situation.
My phone is somehow, repaired. But I have no clue why. I did several things today, just screwing around while I backed up my stuff to the SD card. One of them could have fixed it, or my phone is magic and self repairs after a while. Lets list everything I can remember that I did.
1. I typed in *#9900# in my dialing app. Toggled an option called "Low battery dump" to "on".
2. I deleted a whole bunch of files, including hidden files on the internal storage. Probably screwed up my apps but, whatever, it works now.
3. I pulled the SD card out.
Shortly after all these things, I plugged it in for power, and it finally, got my computer to see it as an MTP device again. No clue which of these succeeded. I'm going to wait a small bit before I test the things that tend to break it.
The magic option, is because I tried to root, it broke, stuck in download mode with some error about firmware. For 4 hours it was stuck like this, I tried everything I could think of, which wasn't much, tried installing the ROM back too, after wasting 2 gigs of bandwidth downloading it only to get an error before it even started the install. Phone was still rebooting in download mode error screen. Left it sit there off for like a minute and it just turns it's self back on, flickers a few times and the logo pops up and the device pops on like nothing had ever happened to it. I'm so confused. :/ At least everything's back to normal. Now add a good confusion post icon below so I can click it and post. :|

VasVadum said:
12. Fast charge isn't going to fix my phone. Unless it disables data communication, then I need to turn it off.
Click to expand...
Click to collapse
this was your problem remember? fast charge does disable data communication.
VasVadum said:
Update to the current situation.
My phone is somehow, repaired. But I have no clue why. I did several things today, just screwing around while I backed up my stuff to the SD card. One of them could have fixed it, or my phone is magic and self repairs after a while. Lets list everything I can remember that I did.
1. I typed in *#9900# in my dialing app. Toggled an option called "Low battery dump" to "on".
2. I deleted a whole bunch of files, including hidden files on the internal storage. Probably screwed up my apps but, whatever, it works now.
3. I pulled the SD card out.
Shortly after all these things, I plugged it in for power, and it finally, got my computer to see it as an MTP device again. No clue which of these succeeded. I'm going to wait a small bit before I test the things that tend to break it.
The magic option, is because I tried to root, it broke, stuck in download mode with some error about firmware. For 4 hours it was stuck like this, I tried everything I could think of, which wasn't much, tried installing the ROM back too, after wasting 2 gigs of bandwidth downloading it only to get an error before it even started the install. Phone was still rebooting in download mode error screen. Left it sit there off for like a minute and it just turns it's self back on, flickers a few times and the logo pops up and the device pops on like nothing had ever happened to it. I'm so confused. :/ At least everything's back to normal. Now add a good confusion post icon below so I can click it and post. :|
Click to expand...
Click to collapse
glad whatever you did fixed it lol. have a good day

ZipAddict said:
this was your problem remember? fast charge does disable data communication.
glad whatever you did fixed it lol. have a good day
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Except, I don't have a fast charge option anywhere. I can't toggle fast charge. My phone is unrooted and locked and such. If plugging in a device like a battery or a car charger, toggles this option and the OS developers deleted access to toggle this option, it is an OS bug and a critical issue in the device that needs to be fixed. I don't know what fixed it, but I'm assuming it was the low battery dump, and that doesn't appear to have anything to do with fast charge and it was a hidden secret option in the system.

VasVadum said:
Except, I don't have a fast charge option anywhere. I can't toggle fast charge. My phone is unrooted and locked and such. If plugging in a device like a battery or a car charger, toggles this option and the OS developers deleted access to toggle this option, it is an OS bug and a critical issue in the device that needs to be fixed. I don't know what fixed it, but I'm assuming it was the low battery dump, and that doesn't appear to have anything to do with fast charge and it was a hidden secret option in the system.
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The way u said it i misunderstood i thought u did have it on. Its not an option on all roms though. Mine has it and i tried it and couldnt see files thru usb until i toggled it off so it was just an idea. I dont know the effects of the low battery dump off top of my head but i will remember that if i hear someone else with same problem. Glad its fixed now

[Q] Does leaving USB debugging enabled negatively affect battery life?

I prefer to leave it enabled since it gives me a little parachute if the device has issues upon bootup. Plus it's easy to send commands via ADB.
Just curious if leaving this enabled drains the battery more? For example, on my Gear S3 watch, it's recommended to leave debugging disabled since not only is it a "security risk" according to them but it also can negatively affect the battery.

cant say for sure, but Ive never turned it off, never had any issues with regards to battery because of it.

Never heard anything like this... Mine is on all the time for evry device I've had.

same as above...have used usb debugging since...forever...

uicnren said:
cant say for sure, but Ive never turned it off, never had any issues with regards to battery because of it.
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galaxys said:
Never heard anything like this... Mine is on all the time for evry device I've had.
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twiz0r said:
same as above...have used usb debugging since...forever...
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Great, thanks for the info!

Just like OEM unlocking...always leave it on! :good:

I kinda think of it as a wall switch on a ceiling fan. you can flip the switch, but no power should be used unless you pull the fan chain. it's just a path you are allowing access to underlying stuff, I don't see any reason having it on would drain anything more than not being enabled.
you will still get that prompt for allowing a new device to perform actions anyway. it's best to leave it enabled, and have it already familiar with a primary device with platform tools installed
Sent from my Pixel 2 XL using Tapatalk

Migamix said:
I kinda think of it as a wall switch on a ceiling fan. you can flip the switch, but no power should be used unless you pull the fan chain. it's just a path you are allowing access to underlying stuff, I don't see any reason having it on would drain anything more than not being enabled.
you will still get that prompt for allowing a new device to perform actions anyway. it's best to leave it enabled, and have it already familiar with a primary device with platform tools installed
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Great analogy!

It is a security risk.
Of course, everything has a downside, and for USB Debugging, it’s security. Basically, leaving USB debugging enabled keeps the device exposed when it’s plugged in over USB. Under most circumstances, this isn’t a problem—if you’re plugging the phone into your personal computer or you have the intention of using the debugging bridge, then it makes sense to leave it enabled all the time. The problem comes into play if you need to plug your phone into an unfamiliar USB port—like a public charging station. In theory, if someone had access to the charging station, they could use USB debugging to effectively steal private information from the device, or push some sort of malware onto it.
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https://www.howtogeek.com/258788/wh...nd-is-it-safe-to-leave-it-enabled-on-android/
Back with Secure Settings, I had phones set to enable USB debugging while connected to my home wifi SSID and disable when not connected. I can see no way it drains battery, since it is a permission only and not an active app.

Screen won't turn off, when connected to power...

Just got my H7x Saturday and am blowin away that a phone this nice can be had for under $200usd.
Anyways, Whenever I have the phone connected to the power-cord(charging) the screen won't turn off. I'll wait for the 60sec I have it set to, fade, the screen turns off, and then right back on immediately. Does the same when connected to USB on a windows computer. Charging only, file transfer etc. does it no matter the mode.
Any input with help would be greatly appreciated... Thank you
edit***All software is up to date via OTA

NeWcS said:
Just got my H7x Saturday and am blowin away that a phone this nice can be had for under $200usd.
Anyways, Whenever I have the phone connected to the power-cord(charging) the screen won't turn off. I'll wait for the 60sec I have it set to, fade, the screen turns off, and then right back on immediately. Does the same when connected to USB on a windows computer. Charging only, file transfer etc. does it no matter the mode.
Any input with help would be greatly appreciated... Thank you
edit***All software is up to date via OTA
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This setting is normally defaulted to off, but check the development option "stay awake"

No, it's set to off. But good call.
It seems like the screen saver would make it do this too. I just noticed that everytime the screen comes on, it's a different picture. However, settings>display>screen saver is off.

Just figured it out.
Under settings>Apps and notif...>notification and status bar> I had 'notifications turn on screen' turned on. That's what was causing it. Strange...
Can anyone else test for this?

NeWcS said:
Just figured it out.
Under settings>Apps and notif...>notification and status bar> I had 'notifications turn on screen' turned on. That's what was causing it. Strange...
Can anyone else test for this?
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Most users are on roms right now, I suggest you do he same.
And, no need for other people to test for this, you fixed the problem.

crayonicle said:
Most users are on roms right now, I suggest you do he same.
And, no need for other people to test for this, you fixed the problem.
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I guess I could root and rom. I am just so impressed with the battery on the stock rom I was going to try and keep it as long as I can.
What ROM do you suggest?
And I didn't fix the issue. Just turned it off... Its still an issue for people who want thier screen to turn on when they get notifacations.
Thanks for the help!

NeWcS said:
I guess I could root and rom. I am just so impressed with the battery on the stock rom I was going to try and keep it as long as I can.
What ROM do you suggest?
And I didn't fix the issue. Just turned it off... Its still an issue for people who want thier screen to turn on when they get notifacations.
Thanks for the help!
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Openkirin roms are good, but the support chat in telegram is a bit toxic...
Also, any hi6250 rom will work well, like with the p8 lite 2017; roms there work on the honor 7x too, i've tested.