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Hi,
I've searched but can't find anything, hopefully I didn't miss anything.
I'm using the Zenithink ZT-280 C71 with official firmware 2.3.4. Since it doesn't have built in bluetooth, I'm using a Bluetooth dongle. It works fine except it seems to have a problem with the power saving function. After some earlier confusing results, I found that if I let the tablet sleep (whether after time or if I push the power button), the dongle light goes off. When I wakeup the tablet, the bluetooh dongle LED comes back on but Bluetooth no longer works. If I try to enable Bluetooth, it tries very briefly then gives up. If the Bluetooth is still working, I can enable or disable it and reenable and it's fine although I'm not sure how much it does. This doesn't happen if the tablet is plugged in, it's working fine hours later. So I'm pretty sure it's because the tablet disables USB power which unfortunately breaks the dongle requiring a restart to fix.
Is there any way to disable USB host mode power saving? Isn't good from a power saving perspective but then needing to restart I've looked in power control widget but nothing useful there, some setting in the build.prop perhaps? I've fooled around with hacking my LG Optimus P500 and another phone before so no problem changing files etc.
Alternatively I could try making the USB bluetooh dongle work with powersaving (although possibly this will be more device specific). I'm not sure but possibly the problem is related to the fact hotplugging doesn't work. If I start the tablet without the dongle and later plug it in, I similarly can't enable Bluetooth.
Any help much appreciated.
so here's the thought:
i have a few old android phones i've collected over the years. i also have a headunit in my car with a rear usb port with which i routed a cable to my glovebox to have a usb stick with my music on it. what i would like to do is replace that usb stick with my old incredible 2. this would not only replace the usb drive, but would also give me the added security of having a hidden phone, always powered, in the car. this would be useful in the event that the car was stolen, since i could reactivate the phone via verizonwireless.com and then use an app like cerberus to do pretty much anything with the phone remotely. including tracking, recording audio, etc. there are just a few kinks i'm not sure how to iron out.
number one, although the phone will last probably a few days with no power, i'm anticipating the battery taking a beating from being in the car 24/7. my concern is that it'll turn off, and if it's stolen i can't expect the perpetrator to turn it back on for me. is there any way to enable an android phone to automatically turn on when it's attached to a power source?
number 2, how can i set the default connection type to 'mass storage device' so that the car stereo automatically mounts the SD card for playing music when the ignition is turned on.
thanks for any help, as well as any other useful suggestions for this application!
rocktonic said:
number 2, how can i set the default connection type to 'mass storage device' so that the car stereo automatically mounts the SD card for playing music when the ignition is turned on.
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under settings, there should be a "connect to PC" section, where you can select "disk drive" as the default connection rather than "charge only".
If you want to take this a different direction, how about turning it into a dash cam?
-- Sent from my TouchPad using Communities
compro01 said:
under settings, there should be a "connect to PC" section, where you can select "disk drive" as the default connection rather than "charge only".
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you know, i'm starting to think something is wrong with the phone. i did find that section, and set the default to disk drive, but when i plug it into my computer all it does is charge. the mac doesn't recognize anything is plugged in, and the phone doesn't recognize it's plugged into anything. i reflashed a stock rom and everything, same results. could the usb port have gone bad in a way that the charging still works but data doesn't?! seems unlikely...
post-mortem said:
If you want to take this a different direction, how about turning it into a dash cam?
-- Sent from my TouchPad using Communities
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that's a neat idea too, especially if i could mount it somehow that it wasn't visible. i've been trying to think of a place to hide it at least so that it can see into the cab to take pictures/video using cerberus, but i'm not sure where i could mount it to do this. my main objective is added security for car theft, so having the phone somewhat hidden is sort of important to me. i live in philadelphia, so the paranoia isn't 100% unwarranted.
For outward facing, maybe behind the grille? Inward facing would be hard to hide. Maybe in the door.
-- Sent from my TouchPad using Communities
Hello everyone, just moved from a Nexus 5 and enjoying many of the unique features, one thing that interests me most is the ability to unlock the phone with a trusted Bluetooth device. I already have a fitbit, so was hoping I could use this, however it turns out you can't, I think it is due to the way Bluetooth 4 is designed to minimise battery drain and it therefore not always connected. I was wondering what other people use , other than say speakers and headphones. I know Motorola have a device planned, but hasn't been released yet.
Thunder_Bolt said:
Hello everyone, just moved from a Nexus 5 and enjoying many of the unique features, one thing that interests me most is the ability to unlock the phone with a trusted Bluetooth device. I already have a fitbit, so was hoping I could use this, however it turns out you can't, I think it is due to the way Bluetooth 4 is designed to minimise battery drain and it therefore not always connected. I was wondering what other people use , other than say speakers and headphones. I know Motorola have a device planned, but hasn't been released yet.
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HX550 earpeace is the only thing I have used. The Moto 360 is the coolest option - but an expensive one. I understand the new micro power-bank is like your fitbit and doesn't do the trick.
I actually have the Power Pack Micro that I use as a trusted device. Works perfectly!
Thanks for the replies, I never knew about the power pack micro, think that is what I will go for, hopefully Motorola will release it in the UK soon.
I connected mine to my desktop PC. Tried it for a bit and it was a cool idea, except that when connected to it the sound would go through the headsets plugged in to the PC. If I tried disabling the audio connection through properties on the PC the phone would disconnect. I couldn't find a way to keep it connected without audio so I ended up removing it.
Would be nice if there was a WiFi option, then I could pair it with that. For now I guess I'll just live without.
cbsevenfifty said:
I connected mine to my desktop PC. Tried it for a bit and it was a cool idea, except that when connected to it the sound would go through the headsets plugged in to the PC. If I tried disabling the audio connection through properties on the PC the phone would disconnect. I couldn't find a way to keep it connected without audio so I ended up removing it.
Would be nice if there was a WiFi option, then I could pair it with that. For now I guess I'll just live without.
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Have a look at Skiplock in the play store. I have been using that in the meantime, it works much the same as the trusted devices, but also does wifi. I have it set up with my home wifi network so when my phone is in the house I don't need to put the unlock code into the phone, does Bluetooth as well, just need to get myself one of those power pack micro now...
Advanced Keyguard Manager also let's you bypass the lockscreen based on WiFi connection.
cbsevenfifty said:
I connected mine to my desktop PC. Tried it for a bit and it was a cool idea, except that when connected to it the sound would go through the headsets plugged in to the PC. If I tried disabling the audio connection through properties on the PC the phone would disconnect. I couldn't find a way to keep it connected without audio so I ended up removing it.
Would be nice if there was a WiFi option, then I could pair it with that. For now I guess I'll just live without.
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Wifi trusted areas is supposed to come as part of Android L I believe.
You cant use it with your fitbit because it doesnt pair, it only uses bluetooth to sync to the app occasionally. It doesnt have anything to do with BT 4.0 afaik.
The only trusted device I use is my car.
Celeras said:
You cant use it with your fitbit because it doesnt pair, it only uses bluetooth to sync to the app occasionally. It doesnt have anything to do with BT 4.0 afaik.
The only trusted device I use is my car.
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Thanks for the info Celeras, that makes perfect sense.
pseudopsyche said:
I actually have the Power Pack Micro that I use as a trusted device. Works perfectly!
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Is there a way to quickly/easily lock the phone when using this? I'd like to do the same, but wonder about the security if someone steals both my phone and my keys -- the phone's power button won't lock the device if the trusted bluetooth is nearby.
Is it possible, for example, to use the button on the Power Pack Micro to disconnect or lock the device? Or is there some quick way to re-enable the PIN using the phone itself? It would presumably be easy with a Moto 360 or a BT headset -- just turn the BT device off, and the connection will be broken. But it's not clear that the Power Pack Micro can be turned off or disconnected without going through the Moto Connect app.
Thanks!
/dev/random said:
Is there a way to quickly/easily lock the phone when using this? I'd like to do the same, but wonder about the security if someone steals both my phone and my keys -- the phone's power button won't lock the device if the trusted bluetooth is nearby.
Is it possible, for example, to use the button on the Power Pack Micro to disconnect or lock the device? Or is there some quick way to re-enable the PIN using the phone itself? It would presumably be easy with a Moto 360 or a BT headset -- just turn the BT device off, and the connection will be broken. But it's not clear that the Power Pack Micro can be turned off or disconnected without going through the Moto Connect app.
Thanks!
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You can quickly lock the screen from the notification shade...there is a persistent notification at the top of the shade saying you're unlocked, and and if you tap it, it locks and stays locked until the next time you unlock it from the PIN/Pattern/PW lockscreen. You could also quickly unlocked it by turning off whatever device you are using as a trusted BT device. The Power Pack Micro has a power button you can turn it off with.
I've got so many things I use as Trusted Devices:
Moto 360
Moto Hint
Power Pack Micro
BT stereo headphones (Bluebuds X)
BT speakers at my work desk
BT HR monitor while at the gym
My cars Sync system
Cobra Tag - this one is really cool device, like the Power Pack it tethers your phone and lets you page it the phone if you've misplaced it, but goes one step further - if you get too far from your phone, both the phone and the Cobra Tag sound an alarm. Great for making sure you don't walk away from a restaurant or home or wherever with your keys in your pocket but the phone left behind (or vice versa). the Power Pack doesn't do that tethering alarm.
To your original concern, if someone walks off with both your BT device and your phone, you're screwed, unless you have time to get on Android Device Manager and remotely lock the phone.
Wow, you have a lot of devices, unfortunately the Motorola powerpack micro is not available in the UK yet, hopefully it will arrive soon.
I want to buy a USB 4G modem, to connect to my PX5 (I have a GS, with Malaysk ROM 4). Is it possible to share the internet connection from the unit. Reason why, is that I want to install AirPin Pro, so that my kids can connect to the unit via AirPlay on their iPhones, and play music.
Which carrier are you planning to use?
Hi, I want to buy also doesn't matter the carrier, any supported one. I want to know what device is recognized by PX5 is it an 3G or 4G? I'm from Romania and I can try on several networks. So if you know please give me some USB modem type to buy. Thanks
I bought one of these instead of a USB dongle and it's perfect. Added bonus that the car now has it's own WiFi for passengers' devices
https://www.aliexpress.com/item/Unl...Hotspot-Dongle-with-Sim-Card/32806566954.html
chandlerp said:
I bought one of these instead of a USB dongle and it's perfect. Added bonus that the car now has it's own WiFi for passengers' devices
https://www.aliexpress.com/item/Unl...Hotspot-Dongle-with-Sim-Card/32806566954.html
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Thanks that's really cool I think I will buy it also. Are you happy with it? No bad or software bugs / wifi drops ... Etc and how you can configure it. Do you have some settings what can be applied? Or insert a Sim card directly into the slot and everything is working? Thank for your answer.
Matrix1990 said:
Thanks that's really cool I think I will buy it also. Are you happy with it? No bad or software bugs / wifi drops ... Etc and how you can configure it. Do you have some settings what can be applied? Or insert a Sim card directly into the slot and everything is working? Thank for your answer.
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When you start it up it is as simple as putting in a SIM card and then logging onto the WiFi using the network name and password printed on the dongle. Once you have joined the network you go the the configuration webpage, something like http://192.0.1.1 and setup your provider details for the sim you have put in. It was really easy. I changed the WiFi name and password to something more memorable for me. It does not stay on so will not drain your battery. It automatically powers off if nothing connects for two hours or if your socket powers off with the ignition. You have to press the button on it to switch it back on, it doesn’t switch on automatically when you turn on the ignition.
Not had any problems with it at all, worked perfectly ever since I fitted it
chandlerp said:
When you start it up it is as simple as putting in a SIM card and then logging onto the WiFi using the network name and password printed on the dongle. Once you have joined the network you go the the configuration webpage, something like http://192.0.1.1 and setup your provider details for the sim you have put in. It was really easy. I changed the WiFi name and password to something more memorable for me. It does not stay on so will not drain your battery. It automatically powers off if nothing connects for two hours or if your socket powers off with the ignition. You have to press the button on it to switch it back on, it doesn’t switch on automatically when you turn on the ignition.
Not had any problems with it at all, worked perfectly ever since I fitted it
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Thanks for clearly informations ! Have a nice day
I've been keeping my battery alive by using Battery Pro app but you have to monitor it 24/7. So I bought a couple of CHARGIE devices - a hardware controller that goes between the cord and charge block to turns charging on and off via an app.
My phone connected to the device only once during many tests. I've been trying various settings and suggestions by the company. They insist it will work with Android v6 so maybe the phone is the problem. Device requires bluetooth "ble" so I turned on full location options (GPS, Wi-fi, bluetooth, cellular networks). I turned on setting to display all ble devices - shows a printer from a neighbour's house but not a Chargie 2 feet away! Ideas or information welcome...
Bluetooth is required for basic communication with the Chargie device, but if your particular phone's Bluetooth doesn't work, you can use another phone to configure Hardware Limiter and use it on the 1st phone without the app. Location Access is unfortunately required by Android's device scan library. Chargie doesn't use it (no purpose). iOS doesn't request that, for example.
If that particular Chargie doesn't work at all, on any phone, please contact [email protected] and it will be replaced for free.
Thank you so much for the info. The Chargies work (I have 3), just not reliably or quickly. I can plug in my phone right beside the Chargie and the app says it isn't in "range". Or it continually says the BLUE Chargie isn't in range even when plugged into the RED one! I had all radios including GPS on during the testing but GPS isn't needed. Still not sure how Airplane mode with Bluetooth turned on affects it. BTW my Oneplus One has Bluetooth 4.0.
Getting the phone connected takes so long, it's hardly worth the time to figure out the "hardware limiter" option with a Windows laptop. Not much documentation on it. I certainly don't want to leave my phone beside the device while charging. I was getting some answers via email until I asked how to return the devices. I may have to just accept that the device works 'sometimes'.