Hi guys
I am researching the Huawei P6 for a car head unit project. Is it possible to automatically boot the P6 upon USB power? Or can such a feature be added to a custom ROM? I'd be willing to donate to a developer to do this if it's possible. Thanks.
BTW, I am aware that the Nexus 7 is already has a custom rom with this feature built-in, but only the Huawei P6 fits the dimensions of my car's dash.
Jinster said:
Hi guys
I am researching the Huawei P6 for a car head unit project. Is it possible to automatically boot the P6 upon USB power? Or can such a feature be added to a custom ROM? I'd be willing to donate to a developer to do this if it's possible. Thanks.
BTW, I am aware that the Nexus 7 is already has a custom rom with this feature built-in, but only the Huawei P6 fits the dimensions of my car's dash.
Click to expand...
Click to collapse
There is an app "Auto Boot - Boot On Charge" in playstore. It boots when usb or charger is plugged in. I dont now if it fits your needs but its a start.
savudragosh2 said:
There is an app "Auto Boot - Boot On Charge" in playstore. It boots when usb or charger is plugged in. I dont now if it fits your needs but its a start.
Click to expand...
Click to collapse
It does not work on this phone, works on Samsung mostly.
Am looking for the same function, as I had a Sumsung before
Will let you know if I found a solution.
_Arjen_ said:
It does not work on this phone, works on Samsung mostly.
Am looking for the same function, as I had a Sumsung before
Will let you know if I found a solution.
Click to expand...
Click to collapse
Sorry.
@Jinster
Which rom-version are you using?
If u don't find the solution u search, u can find a software that puts the phone in airplane mode. I think 1% of battery is a good deal for half day.
The real problem could be te ambiental temperature.
To hot or cold it's not good for the phone.
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?
Just the basics . . . recommendation requested
Ok, I'm looking to turn my not active Sprint S3 into a 'monitor only' (no carrier data needed) for an on vehicle dash project. I'd like to have feedback on best means to accomplish the following (based on desired priority):
- have the S3 boot when power is rec'd from the vehicle power (usb from vehicle accessory power)
- boot fast (instead of the 50+secs it takes to boot w/ standard Sprint/Sammy boot process)
- normal use of existing apps (currently on 4.4.x, but will bring to newer if need be)
- have tasker (or similar app) to run certain apps automatically after startup
- retain wifi and BT functions
- have the S3 turn-off after power is lost
- remove all the BS bloatware from when it was a full blown sammy/sprint device
So I have the setup now running as the screen for my OBDII info with the Torque (Pro) app. It works fine, but the turn-on/turn-off steps make it less than desirable. I've read where the capabilities exist, but haven't found a good simple source. I don't need radio, or the other things I've seen for in-vehicle 'screen' capabilities.
Assumptions, will require custom-ROM and additional app's. My question(s) are: 1) best simple ROM 2) apps that can make it 'mo betta' 3)links to solution for some1 who hasn't rooted Android before [I see the links for choosing root/how to root --- awesome info] if a specific ROM is perfect solution.
Thx in advance ~
dec2015 said:
Ok, I'm looking to turn my not active Sprint S3 into a 'monitor only' (no carrier data needed) for an on vehicle dash project. I'd like to have feedback on best means to accomplish the following (based on desired priority):
- have the S3 boot when power is rec'd from the vehicle power (usb from vehicle accessory power)
- boot fast (instead of the 50+secs it takes to boot w/ standard Sprint/Sammy boot process)
- normal use of existing apps (currently on 4.4.x, but will bring to newer if need be)
- have tasker (or similar app) to run certain apps automatically after startup
- retain wifi and BT functions
- have the S3 turn-off after power is lost
- remove all the BS bloatware from when it was a full blown sammy/sprint device
So I have the setup now running as the screen for my OBDII info with the Torque (Pro) app. It works fine, but the turn-on/turn-off steps make it less than desirable. I've read where the capabilities exist, but haven't found a good simple source. I don't need radio, or the other things I've seen for in-vehicle 'screen' capabilities.
Assumptions, will require custom-ROM and additional app's. My question(s) are: 1) best simple ROM 2) apps that can make it 'mo betta' 3)links to solution for some1 who hasn't rooted Android before [I see the links for choosing root/how to root --- awesome info] if a specific ROM is perfect solution.
Thx in advance ~
Click to expand...
Click to collapse
Interesting. Hope to see some info on how this turns out.
Sent from my LGLS990 using Tapatalk
definitelyjoe said:
Interesting. Hope to see some info on how this turns out.
Sent from my LGLS990 using Tapatalk
Click to expand...
Click to collapse
I've settled on just turning on when I get in the truck . . . and just let it turn off when bat goes out. I do have CONDI starting the SAMMY starting the Torque APP (after turning on BT and WIFI --- sometimes I let it connect to my N6 via HOTSPOT) when USB power is recognized (on start via acc bus of truck), and when power not recognized to dim screen, turn off BT and WIFI in an effort to save battery power [reverses when power recognized]. As you can tell no solutions popped on this thread and I've got comfortable with setup.
My S3 is hardwired to the car's battery. I made a battery replacement pack that taps the OEM battery circuitry and filled it with epoxy, made an adapter to plug into a downstep power supply (from 12v to 4.9v), and the device is plugged in all the time.
I use the Car stereo's bluetooth to tether to it, I can download files/music from YoutubeRed and watch/listen while on the road. I could also preload the device's SD card with music, or even better, plug in a USB otg and plug in a USB hard disk if I needed to. But I so far use it for a dashcam (auto records on bluetooth) using AutoGuard (com.hovans.autoguard) dash cam
Been in multiple accidents, and it has protected me with the auto startup, and auto upload to youtube:
<can't show external links, too new>
Here is the battery I made:
<can't show external links, too new>
But the adapter to convert the car's 12v to the battery's 4.9 (so it thinks it's 100% and fully charged and not attempt to charge it if you want to plug in a charger as the event notification):
Buck Step-down LM2596 Power Converter Module DC 4.0~40 to 1.3-37V LED Voltmeter
You can search that on Ebay or Google for more on that.
I just received my Nexus 7 Gen 2 from an Ebay seller. It came with LineageOS 14.1-20180913-NIGHTLY-Flo installed.
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I have it running carplay pretty flawlessly with the carlinkit wireless carplay adapter (USB dongle).
Now, I have 2 really big issues I need to resolve:
1) I cannot charge the Nexus while the dongle is connected. When I hook a wireless charger to the Nexus, it will only charge when nothing is plugged into the micro USB slot.
2) The only way to wake the screen (after it goes to sleep with the set 5 minute timeout) is to press the top power button. That button is very hard to locate when driving. I need to activate touch to wake or swipe to wake or something.
For 1 and 2 above, what are my options? Is there a version upgrade of the LineageOS that I can get that will address those 2 issues? If not, what would you suggest? Thanks in advance. I'm sure this is going to be great but these 2 issues are a major buzzkill for my carplay joy.
- Scott
Here are some pics of my N7 wireless carplay setup
FWIW, here are a few shots of my setup with the Nexus 7, the Carlinkit wireless carplay adapter, the 3 tail USB adapter cable (I purchased in the event wireless charging + OTG not possible and I have to connect a charger cable to the micro USB slot to make this work). I'm also using the analog audio output of the tablet to route the sound through my car audio.
vestaviascott said:
...1) I cannot charge the Nexus while the dongle is connected. When I hook a wireless charger to the Nexus, it will only charge when nothing is plugged into the micro USB slot.
2) The only way to wake the screen (after it goes to sleep with the set 5 minute timeout) is to press the top power button. That button is very hard to locate when driving. I need to activate touch to wake or swipe to wake or something.
For 1 and 2 above, what are my options? Is there a version upgrade of the LineageOS that I can get that will address those 2 issues? If not, what would you suggest? Thanks in advance. I'm sure this is going to be great but these 2 issues are a major buzzkill for my carplay joy.
- Scott
Click to expand...
Click to collapse
Both issues can be resolved with ElementalX kernel, which features:
doubletap2wake
USB OTG + charge mode
If "USB OTG + charge mode" does not work, make no-battery mod which is preferred for car installations anyway.
:good:
k23m said:
Both issues can be resolved with ElementalX kernel
Click to expand...
Click to collapse
Sweet! So, basically I can install that kernal over top of my existing 14.1 LOS or is there more to it than that? I haven't modded a device before, this one, luckily, already came with LOS pre-installed.
Reading through that opening post, it appears all those functions are "optional". I suppose I'll figure out how to opt-in soon enough, lol.
Also, it says "For fixed-install (Complete working OTG+charge mode) Use version 5.16", so I guess I should follow that?
vestaviascott said:
Sweet! So, basically I can install that kernal over top of my existing 14.1 LOS or is there more to it than that? I haven't modded a device before, this one, luckily, already came with LOS pre-installed.
Reading through that opening post, it appears all those functions are "optional". I suppose I'll figure out how to opt-in soon enough, lol.
Also, it says "For fixed-install (Complete working OTG+charge mode) Use version 5.16", so I guess I should follow that?
Click to expand...
Click to collapse
Yes, for LOS14.1 just install ElementalX-N7-6.17. "Optional" means that you need to activate it during setup.
First try "OTG+charge mode" with your existing LOS. If it does not work AND you don't like the no-battery mod, then do:
install TWRP, backup your LOS and copy the backup to a PC
install stock 6.0.1 - RESTOCK simplifies the process
install ElementalX-N7-5.16 ("For fixed-install - Complete working OTG+charge mode")
:highfive:
k23m said:
First try "OTG+charge mode" with your existing LOS.
Click to expand...
Click to collapse
OK, I don't think my existing LOS (14.1 as indicated in my opening post screenshot) has an OTG+charge mode option, so I expect what you mean by that is to install ElementalX. To be certain, which version are you referring to? ElementalX-N7-6.17 or ElementalX-N7-5.16-cm (I'm assuming "cm" stands for "charge mode") or something else?
k23m said:
If it does not work AND you don't like the no-battery mod
Click to expand...
Click to collapse
After checking out the video, it looks pretty interesting but my concern is that the tablet will basically have to reboot with every time the car engine stop and starts? Unless there is something I'm missing?
The "no battery" option, the more I read about it, may just be the way to go. I just need to figure out where/how to tap a source of constant power to supply to the tablet. I've just purchased a "new" N7 battery from ebay to use as a backup in the event I screw mine up doing this mod. I thought I might be able to buy a ready made cable but no searches returned on ebay for that.
One thing I'm still not certain about is if the no battery option compromises in any way, my ability to connect an OTG device to the tablet. Because the carplay dongle adapter MUST be connected to tablet and its the heart of my carplay solution I'm doing all this for.
With that done, I suppose I'd just need the swipe/touch to wake functionality. Is there an easy way to get that added as a one-click install through the Google Play store over top of my existing LOS 14.1?
vestaviascott said:
OK, I don't think my existing LOS (14.1 as indicated in my opening post screenshot) has an OTG+charge mode option, so I expect what you mean by that is to install ElementalX. To be certain, which version are you referring to? ElementalX-N7-6.17 or ElementalX-N7-5.16-cm (I'm assuming "cm" stands for "charge mode") or something else?
After checking out the video, it looks pretty interesting but my concern is that the tablet will basically have to reboot with every time the car engine stop and starts? Unless there is something I'm missing?
Click to expand...
Click to collapse
vestaviascott said:
The "no battery" option, the more I read about it, is definitely the way to go. I just need to figure out where/how to tap a source of constant power to supply to the tablet. I've just purchased a "new" N7 battery from ebay to use as a backup in the event I screw mine up doing this mod. I thought I might be able to buy a ready made cable but no searches returned on ebay for that.
With that done, I suppose I'd just need the swipe/touch to wake functionality. Is there an easy way to get that added as a one-click install through the Google Play store over top of my existing LOS 14.1?
Click to expand...
Click to collapse
Let's clarify:
ElementalX-N7-6.17 - use with LOS14.1 or stock 6.0.1
ElementalX-N7-5.16 - use with stock 6.0.1
ElementalX-N7-5.16-cm - use with Cyanogenmod (obsolete version of LOS), don't consider it
cm = Cyanogenmod, not "charge mode"
no-battery mod power connection --> ACC/ACCESSORY ignition position or car-battery-direct (*)
doubletap2wake - no Play Store alternative
OTG - no conflict with the no-battery mod
The no-battery mod is really recommended as Li-po batteries do not last long in cars. However without the mod, make sure to activate "Battery life extender" in the kernel's setup.
(*) in direct connection, N7 will drain the car battery after ~2 months of parking (50mA @ screen off) if you don't turn it off.
Thanks for the help. So my task is to install ElementalX-N7-6.17 onto my N7.
I could not find ElementalX-N7-6.17 through a Play Store search, so I'm assuming maybe I will need to download the ROM to a PC/Mac (I have Macs, no PCs) and then connect the N7 to the PC and unzip/extract/copy the 6.17 files over to the N7, disconnect and then restart the N7 to finish the install.
Is that about right? I'm sure I'm oversimplifying. Or should I simply be able to direct install the EX 6.17 software onto my device through the Play Store?
Update: I found a video that seems to be on point for the level I'm at (total newbie to modding devices) and it appears I first need to install a "Custom Recovery" app onto my N7, Based on your suggestions above, I expect that's the TWRP app?
https://www.youtube.com/watch?v=RIi4KXgZYsI
k23m said:
Yes, for LOS14.1 just install ElementalX-N7-6.17. "Optional" means that you need to activate it during setup.
First try "OTG+charge mode" with your existing LOS.
Click to expand...
Click to collapse
How? Do I need to use TWRP for this or should I just be able to do a Play Store search for "ElementalX-N7-6.17" and install it. I'm guessing not, because that search does not appear to return the result. In the response below, it appears to indicate if the above fails, THEN use TWRP, so I'm stuck at this point because after installing TWRP, the "TWRP Flash" option does not offer ElementalX-N7-6.17 as an option. It does offer several "device images" to choose from so I choose what appears to be the latest one at the top of the list "twrp-3.3.1-0-flo.img" which takes me to a download page. After downloading the img, opening it just appears to have downloaded a web page, not an img.
k23m said:
If it does not work AND you don't like the no-battery mod, then do:
install TWRP, backup your LOS and copy the backup to a PC
install stock 6.0.1 - RESTOCK simplifies the process
install ElementalX-N7-5.16 ("For fixed-install - Complete working OTG+charge mode")
:highfive:
Click to expand...
Click to collapse
Kinda spinning in circles here, but after finding no mirrors available to download ElementalX-N7-6.17, I installed "Root Checker" and find that it says "Sorry! Root access is not properly installed on this device"
Maybe I need that for above stuff to work? I probably just need to walk away and come back later. Confused.
Update: I was finally able to get a mirror to download the ElementalX-N7-6.17.zip to my Nexus. Appreciate any help on what to do next. Since this is just a zip file and does not appear to contain an installer, I suppose I need one. Not sure which or how. Thanks in advance for clearing the path for me to get this installed.
vestaviascott said:
Kinda spinning in circles here, but after finding no mirrors available to download ElementalX-N7-6.17, I installed "Root Checker" and find that it says "Sorry! Root access is not properly installed on this device"
Maybe I need that for above stuff to work? I probably just need to walk away and come back later. Confused.
Update: I was finally able to get a mirror to download the ElementalX-N7-6.17.zip to my Nexus. Appreciate any help on what to do next. Since this is just a zip file and does not appear to contain an installer, I suppose I need one. Not sure which or how. Thanks in advance for clearing the path for me to get this installed.
Click to expand...
Click to collapse
I assume that the previous N7 owner had installed TWRP already to flash LOS, if so please do:
copy ElementalX-N7-6.17.zip to N7
boot TWRP
in TWRP "install" the zip and preset desired ElementalX options
boot system - all done
If the above does not work for some reason, here is the complete setup:
copy ElementalX-N7-6.17.zip to N7
setup fastboot on Mac
boot N7 in fastboot mode and connect it to your Mac
install TWRP
boot TWRP
in TWRP "install" the zip and preset desired ElementalX options
boot system - all done
:fingers-crossed:
k23m said:
I assume that the previous N7 owner had installed TWRP already to flash LOS, if so please do:
Click to expand...
Click to collapse
If they did, they must have deleted it. I've installed it via the Play Store.
k23m said:
1. copy ElementalX-N7-6.17.zip to N7
Click to expand...
Click to collapse
I've downloaded the zip via the N7 browser. Check.
2. boot TWRP
Click to expand...
Click to collapse
Assume by "boot" you mean just launch the application on the N7. Done.
3. in TWRP "install" the zip and preset desired ElementalX options
Click to expand...
Click to collapse
There is no "install" button per say, there are 3 options I see, they are:
TWRP Flash
Backup Existing Recovery
Network Statistics
Opening TWRP Flash it asks me to "Select Device". I choose "Asus Nexus 7 2013 WI-FI -- Flo
Next screen shows "Current Device: flo" then "Select a device image to download", there are several files labeled "twrp-x.x.x-0-flo.img".
Not sure what to do next, there is nowhere there to install the zip I downloaded. Perhaps it has to be placed in a certain directory.
ME >>> :fingers-crossed:
vestaviascott said:
If they did, they must have deleted it. I've installed it via the Play Store.
I've downloaded the zip via the N7 browser. Check.
Assume by "boot" you mean just launch the application on the N7. Done.
There is no "install" button per say, there are 3 options I see, they are:
TWRP Flash
Backup Existing Recovery
Network Statistics
Opening TWRP Flash it asks me to "Select Device". I choose "Asus Nexus 7 2013 WI-FI -- Flo
Next screen shows "Current Device: flo" then "Select a device image to download", there are several files labeled "twrp-x.x.x-0-flo.img".
Not sure what to do next, there is nowhere there to install the zip I downloaded. Perhaps it has to be placed in a certain directory.
ME >>> :fingers-crossed:
Click to expand...
Click to collapse
You've got a lot to learn. Turn off your N7, Boot into Recovery(TWRP) by holding POWER an Volume Up buttons simultaneously. Install the elementalkernel.zip file from there. There are tutorials around the web with complete step by step instructions that you should check out.
Genestealer said:
You've got a lot to learn. Turn off your N7, Boot into Recovery(TWRP) by holding POWER an Volume Up buttons simultaneously. Install the elementalkernel.zip file from there. There are tutorials around the web with complete step by step instructions that you should check out.
Click to expand...
Click to collapse
Perfect, thanks. And also thanks to K23m for extreme patience and the PM sent last night which essentially said the same thing. The missing link was:
Genestealer said:
Turn off your N7, Boot into Recovery(TWRP) by holding POWER an Volume Up buttons simultaneously. Install the elementalkernel.zip file from there
Click to expand...
Click to collapse
Done and now I'm upgraded. I can't believe how simple it was once I understood exactly how to do it. They key was what "Boot" actually means and specifically "Boot into Recovery" and how to do it with POWER and VOLUME UP.
Can’t say enough how much I appreciate the help on this leading me through my first attempt at customizing an OS.
The tablet now wakes up when the screen is tapped. I can’t yet get swipe to wake or swipe to sleep working (I did enable those options during install) but most importantly the tablet now charges in my car while the car play adapter is connected to USB.
I have the screen sleep set at max 30 mins and it still steadily gains charge faster than I expected with CarPlay connected and audio output from the 3.5mm audio out. As a bonus, if the tablet is sleeping, it wakes as soon as I turn in the car due to fact it’s connected via the accessory power (cigarette lighter socket with 2.4amp USB adapter plugged in).
One interesting thing is that the OTG device (the CarPlay dongle) does not appear to get power from the battery. It only works when I plug a usb power source into the pigtail adjacent to the dongle. I suppose this is normal?
Some things I’d still like to do I’m not sure if possible via the elementalX options:
1) Force sleep when the power is cut.
2) get swipe to sleep to work
3)
vestaviascott said:
One interesting thing is that the OTG device (the CarPlay dongle) does not appear to get power from the battery. It only works when I plug a usb power source into the pigtail adjacent to the dongle. I suppose this is normal?
Some things I’d still like to do I’m not sure if possible via the elementalX options:
1) Force sleep when the power is cut.
2) get swipe to sleep to work
3)
Click to expand...
Click to collapse
OTG+Charge mode disables self-powered OTG, external power source required.
For sleep when power is cut look into apps like Tasker or MacroDroid.
Swipe to sleep, make sure you doing it right. I'm using ElementalX 7.0, it's a quick swipe LEFT on the NAV bar, not status/notification bar. Some other kernel i used long ago (might have been older elementalx) was a swipe right on notification bar. Try different swiping combinations.
Genestealer said:
OTG+Charge mode disables self-powered OTG, external power source required.
For sleep when power is cut look into apps like Tasker or MacroDroid.
Swipe to sleep, make sure you doing it right. I'm using ElementalX 7.0, it's a quick swipe LEFT on the NAV bar, not status/notification bar. Some other kernel i used long ago (might have been older elementalx) was a swipe right on notification bar. Try different swiping combinations.
Click to expand...
Click to collapse
Thanks. I'll check my gestures and location for swipe to sleep. On the self-powered OTG issue, I believe its confusing my "Carlinkit wireless carplay dongle" a bit - which the developer is actively updating to address issues so maybe its the dongle and not the new settings on the tablet or maybe its a combination. Its like the dongle is not getting power some of the time despite that its connected the exact same as a previous driving session where it worked as expected. This dongle connects via Wifi to the phone. And I'm using a 3 way splitter to allow the dongle and a power cable to be connected at the same time.
Between driving sessions, its hit or miss whether it connects or not. I had to reboot the tablet once to get the dongle to come alive. I'm going to have to troubleshoot what's going on. I haven't had the dongle long enough to know if the problem is with it or with the new settings on the table for OTG_Charge mode.
I suppose it could be one of a few things:
- The tablet
- The dongle
- The cable
- The Power source (a 2 port USB adapter connected to the 12 volt cigarette lighter socket)
FWIW, here's my new carplay setup and thanks to you guys help:
The tablet fits just about perfect in that location. I currently have the two left and right dashboard panel covers slightly ajar and the bottom tablet corners wedge fit behind them. The tablet hasn't budged all day while driving. I'm going to cut out recesses in those panels to allow the tablet to slide in there. In person, It actually appears close to a factory setup but for USB and audio cables coming off the tablet - those are routed behind those cover plates out of sight.
I spent some more time today working with the tablet after the ElementalX upgrade and I believe I understand what's happening now with the connected OTG device failing to come back online after power shut off.
So, since the OTG device is now getting its power from the same cable that's now responsible for charging the N7 (rather than from the battery), when I cut off my car engine, the accessory power source is shut off and the OTG device loses power abruptly. With battery power it would not have to deal with this every time the car engine/accessory power is stopped/started.
So, what appears to be happening is that the OTG device does not like losing power in that way and the only way I can get it to connect again once that happens, is to reboot the Nexus.
I suppose the "No Battery" hack would resolve the issue, since the OTG device would never be shut down and should remain in a ready state at all times.
Short of that, I guess I'll just have to keep rebooting the N7 whenever the dongle crashes. I've tried shutting down the "Autokit" application before shutting down the car engine, but the device is still crashing when power is lost.