I have seen hints online about getting physical phones unstuck from emergency dial mode (e.g. remove the battery to reset the device), but I can't figure out how to apply those hints to the Emulator
Thanks!
And the answer turned out to be pretty obvious. This wasn't emergency dial mode, it was the enter a pin screen. So once I entered my pin, the screen went away, and I was able to use the device. :D
Related
I am using Android management API. I have applied policy to device and turned it to kiosk mode. After a while when I turn on the device, it is not connected to wifi anymore and is still in kiosk mode. Therefore I cannot connect it manually or update its policy. Is there a way to solve it ?
Unfortunately, as you cannot open the wifi dialog and devices cannot update the policy without a connection, the only way to workaround this is to hard reset the device per OEM instruction.
In the future, you can use KioskCustomization to have access to the status bar and navigation buttons so there would be no need to hard reset the device again if there is no connection as you can open the wifi dialog with this.
For people wondering how to escape the kiosk mode. There should be a way for your device to reboot to recovery mode. I my case - samsung tablet - I hold power button and volume down button for a while and when samsung logo appeared a released the power button, but still hold the volume down button. In recovery mode I were able to connect to wifi manually.
We've never seen this before, and search returns almost no instances of this error online.
The problem is, one motor won't spin upon start-up or spin when attempting flight with the RC. It blinks red/yellow on the LED constantly. On the CrystalSky tablet, when we try to fly, it says "ESC ERROR".
The only thing we did different to this motor was unscrewed/screwed a tiny screw on the bottom of the motor.
To fix this, we re-uploaded the firmware to the drone. We also re-uploaded the firmware to the RC. We've also plugged in DJI Assistant, which does not show an error.
Please help, thanks!
This sounds like a hardware issue with the drone itself. I would recommend contacting DJI Customer Support.
So, I'm trying to connect to a custom board using ST-Link. My board uses STM32 Microcontroller and I use ST link utility software to see if I can connect to it.
Right now, If I press connect on utility software and press reset on my board at the same time, the connection is successful. But as soon as I remove my finger from the reset button the connection to the device is lost. Is this expected? And how can I make it stay connected without me keeping the reset button pressed!
Also, assuming I keep pressing it, the utility software gives me an internal command error when I try to erase chip. this happens when I try to program the chip as well.
Any suggestions are appreciated.
So the way to resolve the issue was to pull-up the NRST pin on the board and st link and disconnect it after pressing the reset button.
I still have not found a solution for erasing the chip but I believe the flash is protected. When I try to change the Option Bytes in st link utility, it disconnects from the board saying:
Could not set Option bytes!
Please reset the target and retry!
And then disconnects from the device.
Any clues how I can change the options bytes? That might actually solve the problem!
Thanks
By my experience all of such this problems come from bad assembling one way that may help you to find out first put a light in the back of your PCB right under your micro-controller and see if any pin is outside of footprint if it is aligned correctly,gently press your micro to the PCB and and test if it is disconnecting if it solves your problem then some of pins are not soldered correctly
I set my tango down for a couple of months while busy with other things. I charged it for a bit, turned it on and saw the red battery icon. I charged it overnight and saw the green battery symbol. I clicked the power button The splash screen came up, said it was installing updates and screen turned off. That evening I tried to turn it on and it wouldn't do anything. Next morning it turned on - splash screen - white screen, off. Now it doesn't do anything at all. I've tried - volume button and power, both volume buttons...nothing. Has anyone else had this problem? Any ideas? Thanks.
On the below instruction. it only diagnose your device for hardware and BSP level problem. Tango Core and Apps related is not included.
To diagnose your device problem. First we need reset your device.
Hard Reset device
Press your device power key for around 8-10 secs.
sometimes you will see the backlight of screen is off.
Diagnose what is going on on your tango devices
2.1 Check basic bootloader function.
Plug in device with a charging usb cables.
2.1.1 if your device is out of power.
It will show red battery icon. or green icon which you device still enough battery to boot it up.
2.1.2 if your device is not any icon pop up.
Try 1 step again. or
switch different Usb cables and chargers or charging docks.
If it still doesn't work.It is possible a hardware issues now. you may need to contact project-tango-help#google.com
2.1.3 if you do see the battery icon, but without charging icon on it.
That mean something wrong with your charging cable or devices. Switch different charger and cables. if problem still exists. you may need to contact project-tango-help#google.com
2.2 Check the Software side of the devices
if you can see the icon in 2.1.1, that is good.
Normally on Green icon, you can boot up your device.
2.2.1 after the icon is gone, press the power key are 1-3 secs, device will boot up.
you will see the tango icon and the rolling tango icon as part of booting process.
if you get stuck at this two process forever. it means that there is some problem on booting image on android. please go to section 2.3.
if you can see the Android UI without problem. you are fine.keep a eye on your battery. if it show 50% on charging full. and some weird condition. you may need to contact project-tango-help#google.com for more details.
2.3 Recovery your device by android recovery mode.
if you android system can't boot up successfully, Recovery your device is needed. Remember it will wipe out all your data,and cache. so try to backup your data if possible.
2.3.1 If you device can access by ADB, try : adb reboot recovery
or try below steps:
{ make sure device is off,
press the power key with volume Up and Down key at the same time for around 2-3 seconds, till you see Bootloader menus
you will see
{
Continue
Fastboot protocol
Recovery mode
Reboot
Power off
Force Recovery
}
by using volume Up and Down, and power key you can select the item.
select "Recovery mode"
2.3.2: now you are at Tango android recovery mode.
it will show
reboot system now
apply update from ADB
wipe data/factory reset
wipe cache partition
Using Volume down key for moving, and power key for selecting.
The same step as normal Android recovery step.
1. wipe cache partition
2. wipe data/factory reset
then select reboot system now.
Waiting device to boot up.
2.3.3, If your device is still not good. Google didn't provide the tango image for customer fastbooting the device. you had to contact project-tango-help#google.com for next step.
I purchased a RadBeacon USB from Radius Networks and iBeacon Locator on my Nexus 7 says the calibration is: -59.
My iPhone 5s sees it, the measured power is: -64, so I press OK to copy this value to the Measure Power field of the beacon settings. You must apply the settings to update the Measured Power on the beacon device.
So I press Apply and use the PIN 0000.
Apply Settings.
It says "Invalid PIN".
I use my 4 digit PIN that I use for everything and it says "Connection timed out".
Now in the instructions it says "If you are unable to discover you beacon using the RadBeacon Config App, remove the plastic cover and firmly press the configuration button above and to the right of the battery holder. This will restart the 30 minute configuration window and your beacon should show up in subsequent scans.
Define firmly.
I didn't think it had a battery. What is a battery holder?
Does this button give any kind of tactile feedback when pressed so that I can know that I'm pressing it?
There's a square opening on the top-right of both sides after removing the metal cover. Is one of them the button?
Is there a product that doesn't have this 30 minute restriction so that I can get it to work the first time as a proof-of-concept, and not have to worry about it being bricked after 30 minutes?
Sorry you are having trouble, Philip.
You are correct that your RadBeacon USB does not have a battery. We also sell a RadBeacon tag, which does have a battery and it sounds like you are reading the instructions for that model. So please ignore those instructions.
To restart the config time window on your RadBeacon USB, simply unplug it and plug it back in. Then try using the iPhone RadBeacon app to configure it using the default pin of 0000. If it does not accept that pin, and you did not change the pin to something else you remember, contact us at support#radiusnetworks.com and we will arrange a replacement.
Understand that the configuration time window is simply a security feature to keep other folks from trying to reconfigure your beacon. You can always restart the time window by cycling power. So you don't need to worry about bricking your device -- just be careful not to change the pin without writing down the new number.