Good morning
I have a topway ts7 and the USB port does not work anymore and also when I plug in a phone it does not charge. the topway is plugged into my car. there is a fuse for the usb
Probably you have 2 USB ports, I have noticed they sometimes swap, one is for DVR camera, and second for external usb memory/phone connection etc., try different port if you have 2 ports.
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Am beginning my project to install a 2012 N7, 32 gig, wifi only, in my 2006 Scion xB double DIN as a replacement for the stock head unit. I am keeping the stock speakers for now. I am adding an external amp.
I've done head unit swaps over the years so I know how to open up the dash, remove the existing unit, and how to wire up a regular head unit.
Here's question #1. I am going to use Timur's kernel (using USB ROM for Nexus 7) so that I can use a USB hub and the OTG cable. The OTG cable micro USB will plug into the N7 micro USB port, but the other end of the OTG cable has two plugs. One is a regular USB (female), which I will need to gender change so I can plug into my powered USB hub. The third plug is a micro USB female. Is that third plug needed to bring power or data back to the N7? And if so, what does it get plugged in to?
To power the hub I plan to use a buck converter connected to a dedicated 12v line. The converter will step the voltage down to 5v 3a to power the USB hub. The only thing coming off the hub will be the N7 and a USB 3.0 thumbdrive that will hold my music library.
The second q concerns heat. I'm in S Texas. Has anyone experimented with leaving the back of the N7 off and adding a heat sink to the battery, or adding some sort of insulation, or diverting AC air from the existing ductwork (for when the car and AC are on)? Just looking for ideas.
Thanks in advance for any and all help.
bob.lehardy said:
Am beginning my project to install a 2012 N7, 32 gig, wifi only, in my 2006 Scion xB double DIN as a replacement for the stock head unit. I am keeping the stock speakers for now. I am adding an external amp.
I've done head unit swaps over the years so I know how to open up the dash, remove the existing unit, and how to wire up a regular head unit.
Here's question #1. I am going to use Timur's kernel (using USB ROM for Nexus 7) so that I can use a USB hub and the OTG cable. The OTG cable micro USB will plug into the N7 micro USB port, but the other end of the OTG cable has two plugs. One is a regular USB (female), which I will need to gender change so I can plug into my powered USB hub. The third plug is a micro USB female. Is that third plug needed to bring power or data back to the N7? And if so, what does it get plugged in to?
To power the hub I plan to use a buck converter connected to a dedicated 12v line. The converter will step the voltage down to 5v 3a to power the USB hub. The only thing coming off the hub will be the N7 and a USB 3.0 thumbdrive that will hold my music library.
The second q concerns heat. I'm in S Texas. Has anyone experimented with leaving the back of the N7 off and adding a heat sink to the battery, or adding some sort of insulation, or diverting AC air from the existing ductwork (for when the car and AC are on)? Just looking for ideas.
Thanks in advance for any and all help.
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Timurs kernel is old. Use kangaroo rom or any 4.4.2 rom and kangaroo or oxydo kernel in the kangaroo thread there is a power manager app that will allow the tablet to fast charge and turn on and off with ignition. If your worried about heat buy a 12 volt fan and power it up with 12 volt from car. The micro usb female is for power use the cable that came with the n7 Power it with a 2amp or more 5v power car charger(i bought a samsung branded) works great. You dont need a hub if your only gonna power a flash drive. Micro male to tablet, full size female to flash drive ,micro female to nexus charging cable to usb car charger plug.
The GPS WiFi Bluetooth and NFC antennas are all on the back cover so none of them will work without it. So that means no sat nav or internet. I wouldn't worry about cooling it the tablet is meant to function with the back on in a variety of conditions. If you want you could cut a hole in the back there is a copper sheet that is the Nexus's heat sync. Maybe hook up a CPU or graphics card heat sync out a desktop. Or even just stick it to the plastic back its bound to do something.
Sent from one of my 47 iPads running android C3P0
So, my 2014 Kia Soul has a new map update that is arriving in the mail tonight, and it includes Android Auto. I know I have to connect my device directly to the USB plug in my car to use it, but I have some questions for everyone.
I want to be able to keep my phone QUICK charging at 3A but also connect for the USB requirements for Android Auto. I also have a 32gb micro sized USB drive I'd like to keep plugged in, as it is loaded up with great driving music. I can live without the USB drive if needed, but really want to keep the ability to quick charge.
If I use an adapter like this one.
https://www.amazon.com/gp/product/B01A6ZPHAQ/
And connect the Type C connector on that to my phone, and then the Type C USB charger in my car to this, can I connect a Type A male to Type A male cable to satisfy Android Auto?
I hope this makes sense. I'm thinking it'll work, but maybe someone else has tried it. I have this adapter from some testing I did, but don't have a male to male type A USB cable to test out with yet.
I am almost sure it won't work. And where will you get 3A power to quickcharge? Cars usb are not prepared for that.
I would get to 3 amp power from where I get it now, the quick charger that I put in my car as mentioned above.
So the USB C cable would go from my current charger to the USB C in port on this adapter, which is designed only for charging through that port, then a USB A to USB A cable to connect the car USB port to the USB A port on the adapter.
I picked up a short USB a male to male cable earlier today so I can test this on Friday.
I’m new to Android headunits, and XDA-style android hacking. My headunit doesn’t have the standard micro usb otg plug, but 2 females standard usb 2.0 from the harness.
I purchased a usb 2.0 male to male cable and tried connecting it to my laptop’s usb port, but no device is detected. I wonder if there are other ways that I’m not aware about.
I have what is hopefully a simple and straight forward question. I purchased this unit about 12 months ago https://www.aliexpress.com/snapshot...&orderId=87843158798481&productId=32807153130 and I have both a DVR USB Camera and DAB+ Module connected to the 2 USB ports on the rear of the unit.
It appears that one of the USB ports is faulty, so I can only get reliable DVR or DAB+ but not both. If I were to buy a small, simple USB Hub like this https://www.aliexpress.com/item/keb...-Splitter-Hub-Adapter-For-PC/32889011052.html, connected it to the working USB and then connected the USB Camera and DAB+ Module to the hub, would this work?
Thanks for reading!
I'm not certain if it works correctly on Android 6, but on my unit that has Android 8 i have a similar USB Hub connected that has a memory stick, the TPMS receiver and the receiver for a wireless keyboard, they all work correctly.
Taking into account how cheap a USB Hub is, i think it's worth checking it out.
Also, i managed to get one of the USB connectors into the glove compartment and connect the USB Hub into it, so the devices are easily accessible but not too visible.
Note, if you can take the unit out and send it to a service, they can probably fix the USB connector (the one that doesn't always work), it might have a loose connection, they sometime come loose and can be resoldered to the motherboard.
Also, if you open the unit and check the motherboard, some units have a 3rd internal connector that needs an adapter, not all of them though.
I have tried several different cables and no success. Every time I plug a USB Cable into my old laptop (Dell Precision M4600) and into the USB Cable from the AllWinner T8 head unit, it does not recognize that there is a USB Connected. I have no idea what I'm doing and I was wondering if anyone had any ideas? I've tried all four USB ports on the laptop (3.0 and 2.0), a monoprice male a to male a usb data cable, a QVS 3 feet 'high speed' 2.0 data cable, a transfer cable (added to computer as F: drive, unable to access headunit files and PhoenixSuite did not detect Android Device nor did my computer beyond Portable Device listing 'F:'). I have uninstalled drivers, updated drivers, made sure there are no unknown devices. Plugging into the laptop nothing is added in device manager, so I'm clueless at this point.
USB Debugging is on. USB is set to use MTP, not charging. It doesn't even show up as recognized. I used terminal emulator to check and see if as 'su' if there were any devices using adb devices, nothing showed.
When I use my phone charger cable, plug into the usb cable from headunit and into phone it recognizes the device. When I plug the charger cable from phone into laptop, it recognizes phone. When I use the same exact cable with an adapter to convert to Male A, it does not detect a usb device connected on either end. No device under Device Manager, no 'usb connected' on head unit.
Does anyone have any idea what I need to do for the head unit to recognize that there is a USB Cable connected?
Both your Laptop and your HU are USB Hosts. Hosts cannot communicate. Only a host with clients.
Some HU can be switched to client mode in some Setting page, usually hard to find. And often client mode is then active only on one specific USB port of the HU.
And note, not all HUs have the capability at all.
If you want to use adb, then try via WiFi.
realzoulou said:
Both your Laptop and your HU are USB Hosts. Hosts cannot communicate. Only a host with clients.
Some HU can be switched to client mode in some Setting page, usually hard to find. And often client mode is then active only on one specific USB port of the HU.
And note, not all HUs have the capability at all.
If you want to use adb, then try via WiFi.
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Is there anyway around this? I'd like to try and upgrade the head unit from 7.1.2 to 8.1 but if I can't get the unit to communicate then I am out of luck.
MrStuffing said:
Is there anyway around this? I'd like to try and upgrade the head unit from 7.1.2 to 8.1 but if I can't get the unit to communicate then I am out of luck.
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Hi, can you finally update?