Ok, apparently there is no recovery mode for the device or any other similar unbranded devices. The only way to fix firmware or any other issues is to flash it directly using the sequence below, especially if you don't have physical buttons. Make sure you have the firmware in a usb drive directly plugged in without extension cable, or using sd card slot.
Turn off the power to the HU, then press reset button, and keep it pressed. Then turn on the power, the illumination should remain dark at this moment due to the reset button is still pressed. After 3 secs, release the reset button, and immediately when the HU start to illuminates, turn off the power, then turn it back on in quick succession. The screen should show start update, and the progress will be shown on the screen.
You don't need to take the device out from your car. Just turn the key slightly, no need to turn on the ignition, to turn the power on.
Hope it helps somebody.
Hi guys,
Any idea how to enter recovery mode with this hu? It does not have physical buttons. Pressing reset button for few seconds did nothing. Thx in advance.
Related
Hello all,
My mother got an a500 about seven months ago and the other day she put it to charge and the next day it wouldn't turn on at all, just a black screen. When the charger is plugged in, the power button glows white. Take it off charge and the light goes out and that's all it will do.
I have tried searching through multiple forums and I have tried all the solutions I have found. I tried pressing the reset button near the usb plug, I tried a hard reset by holding the power and volume + buttons multiple ways, i.e. I held them both for thirty seconds, held the vol button and pressed power for three seconds and about every other iteration I could find. Nothing happened not even a vibration like from what I've read it is supposed to do. I downloaded the update.acer.zip file and put it on an sd card and tried flashing it by holding the power and vol - buttons, still nothing.
The tab has not been moded in any way, however, God only knows what apps my mother way have downloaded to it...
I am at my wits end and I don't know if I'm doing something wrong or what. Any help would be greatly appreciated. I am a noob so it wouldn't surprise me if I am not doing the flashing right or if I have the wrong files, all the links I found on the forums were non functional and I had to download it from filecorp.com.
Thanks in advance!
Core645 said:
Hello all,
My mother got an a500 about seven months ago and the other day she put it to charge and the next day it wouldn't turn on at all, just a black screen. When the charger is plugged in, the power button glows white. Take it off charge and the light goes out and that's all it will do.
I have tried searching through multiple forums and I have tried all the solutions I have found. I tried pressing the reset button near the usb plug, I tried a hard reset by holding the power and volume + buttons multiple ways, i.e. I held them both for thirty seconds, held the vol button and pressed power for three seconds and about every other iteration I could find. Nothing happened not even a vibration like from what I've read it is supposed to do. I downloaded the update.acer.zip file and put it on an sd card and tried flashing it by holding the power and vol - buttons, still nothing.
The tab has not been moded in any way, however, God only knows what apps my mother way have downloaded to it...
Click to expand...
Click to collapse
The white light when plugged to the charger just indicates it's fully charged.
Test 1. Press and hold the PWR button for 7 seconds, release, wait a couple seconds to see if it responds, then press and hold for another 7 seconds. See if it responds.This is to check if the tab is in Sleep of Death (SOD)
Test 2. Using a paper clip, press and hold the pinhole reset (near USB) and then press and hold PWR. After 4 seconds release PWR, 1 second later release pinhole. See if is vibrates and goes into APX mode, (tab should vibrate once with a black screen and white PWR button) if it does, press and hold PWR only for a few seconds. Wait a couple seconds, then PWR on tab by holding PWR about 6 or 7 seconds.
Test 2 is just to see if the tab responds to anything,
If you can't get any response from the above, then it's best to turn it in for repair.
MD
@Moscow Desire: he pressed the reset button already so it is probably not SoD. Unless SoD makes reset button unresponsive too.
My tab does not vibrate when entering APX mode at all. Only the white power button LED turns on and the screen stays off.
@Core645: try this at first
- disconnect charger so the LED turns off
- hold power button for about 5 seconds
If the power button LED turns white and nothing else is happening then your tab is stuck in APX mode. You can confirm this by connecting micro USB cable from your PC. If you have windows it'll ask for drivers for Nvidia Download Mode or something like that.
Then check what Moscow Desire suggests with the reset button. I only ask you do my check at first because by holding reset you would achieve the same result and you wouldn't know if it is stuck in APX or you just forced it to APX by holding reset button.
Hi all,
My new Nexus 7 (2013 model) arrived today, and it seems that it can only boot up through the bootloader menu, i.e. the power button does not work properly. When plugged in, the battery charging icon does appear for a few seconds before disappearing.
The problem is that holding down the power button does not turn the device on. Holding down volume down+power button works correctly and shows the bootloader menu, and from there selecting "Start" is the only way to actually boot the device. When plugged in to a power source (outlet or computer), holding down the power button causes the battery charging icon to appear, disappear, and reappear constantly. Holding down the power button when unplugged shows no response on the screen, even after holding down for a full minute. Once the device is booted, the power button works perfectly for locking, unlocking, and showing the power off menu.
I already tried doing a factory reset, which did not help at all. Is there anything I can do to fix this problem?
Your best bet is to ask in your device's forum section as this section is for the 2012 version.
#stayparanoid
My A3 doesn't "wake up" from stand-by.
If I reset it keeping pressed power up button, it correctly reboots, I can see all boot process and it correctly reachs the starting home page.
If I keep touching screen, open apps, navigate from various menu all works fine. But when I leave it without pressing any button/screen for 10/15 sec (display power off delay) the screen correctly goes black, but there's no way to wake up it again although it seems working. The A3 "under" works because plugging to AC Adapter beeps the sound of charging in progress, PC (Kies or SmartSwitch) detect it correctly; only the screen remains black.
I already tried to wipe and even reflashed last firware with Odin but with no luck.
Is there anything else that I can try (except send it to repair center...)?
Thanks in adv
JYD
P.S. When I call It from another phone, it rings but the LCD remains black and doesn't respond clicking vol +, vol - and home buttons
P.S. 2 Thinks become "funny": Home button, vol + & vol - don't work at all. Power button powers off display, but long pressing it, doesn't pop up power off/reboot menu. Softkeys don't work.
Sounds like SoD. Try installing the app "Wake Lock" and choose the PARTIAL_WAKE_LOCK option.
Hi all,
I have accident on sea where one wave splashed a bag where my phone was. After small problems with "laggy" buttons everything went fine and my phone worked correctly except power button. It doesn't react. I couldn't even restart the phone. And when my battery was used I coudnt turn it on. I tried to press volume up + power button million times, or all 4 buttons, and somehow I manage to turn it on again while still I was on vacation. Few times I have entered Android recovery screen, and Power button worked perfectly there (I managed to press power button and select reboot device). And after the phone turn on power button would usually works few minutes and then it would died again.
I have installed software for simulation of power button and it worked ok. This morning somehow I decided to turn off my phone, and I couldn't even imagine what kind of problems I will have to turn it on again. Whole day I am trying to turn it on, but it doesn't react. When I pull in charger then it shows regularly battery status (70%). I am desperate :crying:
I am trying to google or find any solution how to bring it ON again without power button, but without success
Is there any way how could I turn Samsung galaxy S6 Edge Plus without power button?
And what you think, is this some kind of software problem, and maybe some factory reset or flashing might help? Or it is more likely hardware problem?
Many thanks in advance.
Can anyone help me?
I have just found this article which might help me:
How to turn ON Galaxy S6 without using the power button:
When the Galaxy S6 or Galaxy S6 Edge is turned off, press and hold the volume button for a few seconds.
While holding the volume button, connect the Galaxy to a computer using a USB cable.
Wait for your phone to boot to Download mode.
Then press down on the volume rocker to cancel the operation.
After the operation has canceled, the Galaxy will reboot and turn on.
You have successfully turned on the Galaxy S6 without using the power button.
source: http://recomhub.com/blog/how-to-turn-on-and-off-galaxy-s6-without-power-button/
But somehow this doesn't work for my phone? First I wasnt sure which volume button should be pressed, so I tried with both in all combinations and still cant get into Download mode.
But I am glad that samsung had created some workaround if power button is not working. THis used to work on older models I guess.
Is there anyone who might know the way how to turn on phone without power button?
I just bought and installed this unit in my 2010 Prius from a seller on Ali Express
I want to install a custom ROM on it but first I want to make sure I can successfully boot into recovery in case something goes horribly wrong. The seller REALLY doesn't want to share that information with me, so I was wondering if someone here might know how this is done.
If you have a reset button...
Press it (with toothpick) and hold it pressed until you see blinking the lights of buttons...then release and press it again until you see the lollipop logo. Release it and you will be on recovery menu.
You can move on different options from recovery by pressing quickly the reset button and choose an option by holding pressed the reset
if I did help you, please hit "thanks" button
ikerg said:
If you have a reset button...
Press it (with toothpick) and hold it pressed until you see blinking the lights of buttons...then release and press it again until you see the lollipop logo. Release it and you will be on recovery menu.
You can move on different options from recovery by pressing quickly the reset button and choose an option by holding pressed the reset
if I did help you, please hit "thanks" button
Click to expand...
Click to collapse
So I tried that, but on my unit when you press the reset button all the light go out and stay out until the button is released. The only time I can get the lights around the buttons to flash three times is when I release the reset button and hold down the power button. But when I release the power button and hold it down again after the flashes it just repeats the three flashes again like the first time. If I release the power button at any time it just loads up like normal. If I hold it down again when the lollipop logo comes on it just goes blank and repeats the three flashes again. If I press the reset button it just resets the unit again, if I hold it down it does nothing until I let go, then it resets the unit again like normal.
The three flashes seem like they mean something but I can't figure out how to get to the next step of actually starting the recovery. I want to flash a custom rom but I am afraid to do it without the safety net of being able to get into recovery if I need to, you know?
any update
I also want to buy this unit, but I'm just not sure:
Does it connect to all the functions of the Prius 3? Camera? Microphone? Steeringwheel buttons? Other?
Or do you need extra modules? Which?
Are you enabled to edit the basic car functions from it at least?
Found the thread on google, waiting for someone custom rom it, its good, everything works excepts its buggy, sometimes camera dont work etc that is why i also want a simlle custom rom on it
Edit: solved here : https://forum.xda-developers.com/an...pment/mtcd-intel-sofia-units-wifi-3g-t3533154
Could you explain me how? I have same screen but I don't even get those 3 lights pushing both reset + power at same time. Thanks
Hey guys, so I have this media and my camera doesnt work, I just bought this car and when i put to reverse just yellow triangle appears, i found on google that they might be a solution in my factory settings, but I dont know the password, so do any of you know it, i would apreciate any kind of help, thanks.