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[Q] tablet won't turn off for replacing digitizer

Hi,
My tf300t got its screen cracked so touch screen is non functional.
I'm trying to turn it off so I can open the case, but it always reboots no matter what I try!
Tried long pressing the power button for 30 seconds but it always reboot after 8 seconds.
Any suggestions? I don't want to open it up while it's on .
Can I shut it down from fastboot mode?

georgeBoy2 said:
Hi,
My tf300t got its screen cracked so touch screen is non functional.
I'm trying to turn it off so I can open the case, but it always reboots no matter what I try!
Tried long pressing the power button for 30 seconds but it always reboot after 8 seconds.
Any suggestions? I don't want to open it up while it's on .
Can I shut it down from fastboot mode?
Click to expand...
Click to collapse
I remember there was a manual Power off option in TWRP (idk if it is still there). Have you tried that?

cmendonc2 said:
I remember there was a manual Power off option in TWRP (idk if it is still there). Have you tried that?
Click to expand...
Click to collapse
I have the stock bootloader - it says
Code:
"Adroid cardhu-user bootloader (1.00 e) released by "WW_epad_10.4.2.9-20120809" A03
I'm inclined against flashing a bootloader (only as last resort).
I am able to get into fastboot and issue fastboot commands. will that help?
"fastboot reboot" only reboots..
by the way, the device is still locked (getvar returns "unlocked: no")..

georgeBoy2 said:
Hi,
My tf300t got its screen cracked so touch screen is non functional.
I'm trying to turn it off so I can open the case, but it always reboots no matter what I try!
Tried long pressing the power button for 30 seconds but it always reboot after 8 seconds.
Any suggestions? I don't want to open it up while it's on .
Can I shut it down from fastboot mode?
Click to expand...
Click to collapse
How did you turn it off if the touchscreen wasn't working? By pressing the power button would cause it to reboot endlessly. If you don't have a dock or adapter to power off properly, one thing I did before was to click the reset button (through the hole below the SD card slot) and press the power button simultaneously, then keep holding the power button for 10 seconds after releasing the reset. It did turn off the tab completely. Failing that, just pop off the back cover and turn off the service switch. The cover is not connected to anything electronic so it's ok. That'd cut off the current to the tab. It can be done, just be careful.

graphdarnell said:
How did you turn it off if the touchscreen wasn't working? By pressing the power button would cause it to reboot endlessly. If you don't have a dock or adapter to power off properly, one thing I did before was to click the reset button (through the hole below the SD card slot) and press the power button simultaneously, then keep holding the power button for 10 seconds after releasing the reset. It did turn off the tab completely. Failing that, just pop off the back cover and turn off the service switch. The cover is not connected to anything electronic so it's ok. That'd cut off the current to the tab. It can be done, just be careful.
Click to expand...
Click to collapse
I didn't turn it off, that's the problem.. I got it yesterday from a guy after his screen cracked.
he gave it to me turned on and I want to replace the screen, so the only thing I can use are the hard buttons.
I only have the power adapter + usb cable.
are you sure about that reset button thing?
EDIT: found info about the "service switch": http://forum.xda-developers.com/showpost.php?p=46159071&postcount=5
EDIT2: did it! thanks graphdarnell!!
now moving to step 2 - ordering a replacement digitizer..

cant access anything

hello
i have nexus 5 that in the last 3 mounts was untouched because i went back to dumb phone, but now my works need me connected to the internet so...
my phone stuck on the google with the unlock\lock screen, every 2 sec its resets, then again same screen for 2 sec, over and over again.
when i try to get in boat-loader, after 2 sec it again reset and go back to the unlock\lock screen.
when i try to plug it in to PC -nothing
when i try to open the phone and check the power button, it is all good and nothing pressing on the button. and its still loops over and over(didn't tried the "band on the edge" thing -its still plastic and small parts)
if its a motherboard problem can i have a price for it and information how to replace it
and if not i am willing to try any other option
thank you and have great day

The power button doen't need anything pressing on it to be a problem.
Open the phone, remove the motherboard, quickly press and release the power button, using more pressure than normal and try again. If that doesn't work, you may have to replace the power button.
The cheapest way to replace the motherboard would be to find some selling a phone with a smashed screen and a working motherboard.

audit13 said:
The power button doen't need anything pressing on it to be a problem.
Click to expand...
Click to collapse
i will try
thank you

Button combination to enter recovery mode on Xtrons HU

Does anybody now how to get into recovery mode on an Xtrons HU? I tried every combination I could find and I've already been in there but can't remember how I got there. Xtrons support is horrible. They just sent me a video showing a factory reset procedure when I asked for the combination.
I have that one:
http://xtrons.co.uk/pf75aa4a-7-andr...nction-obd2-for-audi-a4-s4-rs4-seat-exeo.html

In my device also dont know how to enter recovery mode. So installed ROM from settings
Upload img file to my map sd card and clicked in settings check update.

pitu120 said:
In my device also dont know how to enter recovery mode. So installed ROM from settings
Upload img file to my map sd card and clicked in settings check update.
Click to expand...
Click to collapse
You installed malaysk new ROM for our MTCD units via the settings menu or another ROM?

malaysk rom
1. downloaded his rar file
2. unrar
3. copy .img file (dupdate.img) to my sdcard for maps
4. in settings clicked check update (rom is installing from recovery after auto reboot)
btw. Have one problem (i think that its problem with I cant wipe data and cache) u can find it in malaysk thread (last my post).

I have an Xtrons HU as well. I'm not sure the exact buttons to press to get into recovery, but I have done it, so it's possible. Try holding down power button until it totally powers off, then keep holding it until it starts to reboot, eventually you might get in.
On my Xtrons, it doesn't like dupdate.img name, and preferes update.img... but for whatever reason, it gets an error during flashing malaysk's rom, and reboots back to stock rom. I need to look more into it... it seems like it is flashing rom, but at some point an error flashes by too fast to read. I only tried it once so far, will again when I get more time to play.

On my unit, I tried the combo power/reset without any success. Before I read up on this, I did however get into recovery once by accident with just the power button. So after playing around with this more, I can get into recovery consistently doing this:
1) Hold power button until unit turns off and (on my unit) light flashes.
2) Let go and then press the power button again. This somehow shuts off the unit since it would normally just reboot after releasing the button it seems.
3) Press the power button again to turn it on. It should hopefully go into recovery.
I have no idea if this works on other units, but I have not seen a description of this in any of the posts/videos I have seen.

vnamee said:
On my unit, I tried the combo power/reset without any success. Before I read up on this, I did however get into recovery once by accident with just the power button. So after playing around with this more, I can get into recovery consistently doing this:
1) Hold power button until unit turns off and (on my unit) light flashes.
2) Let go and then press the power button again. This somehow shuts off the unit since it would normally just reboot after releasing the button it seems.
3) Press the power button again to turn it on. It should hopefully go into recovery.
I have no idea if this works on other units, but I have not seen a description of this in any of the posts/videos I have seen.
Click to expand...
Click to collapse
This worked for me. I'm on KGL unit.

vnamee said:
On my unit, I tried the combo power/reset without any success. Before I read up on this, I did however get into recovery once by accident with just the power button. So after playing around with this more, I can get into recovery consistently doing this:
1) Hold power button until unit turns off and (on my unit) light flashes.
2) Let go and then press the power button again. This somehow shuts off the unit since it would normally just reboot after releasing the button it seems.
3) Press the power button again to turn it on. It should hopefully go into recovery.
I have no idea if this works on other units, but I have not seen a description of this in any of the posts/videos I have seen.
Click to expand...
Click to collapse
same to me. XTRONS HU, got into recovery by the same method but then, cannot flash. The unit is a GS.
Did you make any progress?

da_anton, did you ever get into recovery mode? I have the Xtrons PF75ATTA which looks the same as yours. After changing the /system directory to read write and adding 3 lines to the build.prop file. The unit only showed the car navigation lollipop screen and the android/car logo.
I have tried almost every combination of power and reset button. How did you do it in the end?
Thanks

chammock said:
da_anton, did you ever get into recovery mode?
Click to expand...
Click to collapse
Yes I managed to do it. First I would recommend you have a really silent place. You can hear some very quiet sounds at different stages. At least I could.
I managed it that way:
press the power button till the unit is off. I can hear a sound like a "plop". But very quiet. That is my indicator that the unit is off now
release the button. You should now hear another quiet "plop" when the unit is turning on again.
wait maybe 1sec or even more to press and hold the power button again.
the unit now enters recovery
It took me a while to got it working so you have to try it a couple of times.

Thanks, I managed to do it, took me about 20 minutes. I have to say I couldn't hear the noises you were referring to but just knowing the process worked only on timing and the power button narrowed down the possibilities. Thanks again

Xtrons TD696AS recovery mode buttons
This method works on the TD696AS as well.. Press and hold power button until dvd leds flash 3 times and then solid on., release and press momentarily a couple of more times. Wait a few seconds and unit will restart into recovery mode.
Regards,

renderstester said:
This method works on the TD696AS as well.. Press and hold power button until dvd leds flash 3 times and then solid on., release and press momentarily a couple of more times. Wait a few seconds and unit will restart into recovery mode.
Regards,
Click to expand...
Click to collapse
Does the unit needs to be off already or on?
Try to enter recovery mode on pcd86clta

the solution of KYD A-sure dead head unit or update to android 6.0
after contacting with KYD, they sent me a package to help me flash the head unit. I was stack on andriod booting logo. the unit was like dead. now I've got the files, i will share with everyone once it has been uploaded to my cloud drive.

i'm having loads of trouble with my head unit, i can get to recovery mode but it keeps getting stuck on the boot screen after i've tried flashing the firmware they have supplied me with, any help please?

vnamee said:
On my unit, I tried the combo power/reset without any success. Before I read up on this, I did however get into recovery once by accident with just the power button. So after playing around with this more, I can get into recovery consistently doing this:
1) Hold power button until unit turns off and (on my unit) light flashes.
2) Let go and then press the power button again. This somehow shuts off the unit since it would normally just reboot after releasing the button it seems.
3) Press the power button again to turn it on. It should hopefully go into recovery.
I have no idea if this works on other units, but I have not seen a description of this in any of the posts/videos I have seen.
Click to expand...
Click to collapse
It worked on a Xtrons PB76FSFAP-S.
Thanks.

Just installed Oreo on my px5 Xtrons unit. (Mine doesn't have physical buttons minus the reset button).
From any point...hold the reset button for 25 seconds, let go of it...when you see the boot animation press the reset button again (not hold).
You will have to use the reset button as the method for going down through the menu...then hold reset button for it to choose the item.
Worked for me.

Xtrons D719AS
D719AS
is there an update android 8?

WinCE 6.0 xtrons pf71ibss
Hi everyone, i need help!!!
I bought a xtrons pf71ibss, i asked them if they have any update for it, but they dont even care about me
So im here to know what can i do to change that horrible visual, or change the image to android!!
I would really like to know how to enter the recovery mode of this radio to make possible changes
Thanks

Xtrons PB7646BAP Recovery
On the Xtrons PB7646BAP:
I tried everything mentioned in this thread. Nothing worked because my unit does not flash lights or make a "plop" sound. As long as the the car ACC is on, the lights on the unit are on. There is, however, one way I can tell if the unit is on or off after pressing the power button -- by the hissing sound from the speakers.
1. Hold power button down until you no longer hear speakers hissing. Then release button.
2. Not fast, and not too slow: Press then release the button. Then press and release a second time.
3. Unit should come up in recovery. If it doesn't, repeat above.
This sometimes doesn't work. Sometimes because I press too quickly or too slowly. You will have to do it a few times to get the feel of the rhythm you should use.

How to get into recovery?

I have bought this 5.1.1 MTCD unit,but i cant get into recovery.
Does anyone have this unit and can tell me how to get in to recovery.
It is a GS MTCD 1.61.4.1 unit
Thank you

When you put the key in (just before engine start) hold resetbutton until you see the bootlogotype. It took me some tries.

bazuz said:
When you put the key in (just before engine start) hold resetbutton until you see the bootlogotype. It took me some tries.
Click to expand...
Click to collapse
Tried it and it doesnt work. If i pres the reset botton the screen goes black and it stays that way until i pres it again.

zorantoma said:
Tried it and it doesnt work. If i pres the reset botton the screen goes black and it stays that way until i pres it again.
Click to expand...
Click to collapse
Okay sorry to hear that, have you tried the reseller?

bazuz said:
Okay sorry to hear that, have you tried the reseller?
Click to expand...
Click to collapse
The seller is no good. Only problems with him. I am in dispute with him becouse the screen is cut of almost 1cm at the botom.Ifvyou have any other seguestion i am all ears.

I wrote this in another thread, but you can try this method.
1) Hold power button to turn it off (about 5-10 seconds).
2) Let go and shortly afterward (1-2 seconds) hit the power button again. This should keep the unit off and prevent it from automatically restarting.
3) You can then hit the power button again to turn it on, and it should go into recovery

How to get into recovery on a BMW e46 (3Series)? There is no "Reset" Button to press on? Thanks
It's an Erisin ES3062B

zorantoma said:
I have bought this 5.1.1 MTCD unit,but i cant get into recovery.
Does anyone have this unit and can tell me how to get in to recovery.
It is a GS MTCD 1.61.4.1 unit
Thank you
Click to expand...
Click to collapse
I have the same unit (at least looks equal). Can you get in recovery? I'm still trying.

hugovw1976 said:
I have the same unit (at least looks equal). Can you get in recovery? I'm still trying.
Click to expand...
Click to collapse
Can you post a picture of the front of your unit?
If your unit is anything like mine, the rst (reset) button does nothing to get you into recovery. The post by vnamee (http://forum.xda-developers.com/showpost.php?p=67552738&postcount=6) works for me. My unit does not have a recessed power button, it's just the volume knob.
Also, ignore step 3.

zorantoma said:
The seller is no good. Only problems with him. I am in dispute with him becouse the screen is cut of almost 1cm at the botom.Ifvyou have any other seguestion i am all ears.
Click to expand...
Click to collapse
Who your reseller? Im having issues with doctorman, aka JOYING-USA

hugovw1976 said:
I have the same unit (at least looks equal). Can you get in recovery? I'm still trying.
Click to expand...
Click to collapse
First it is wery important,to turn on the lights that you see what is hapenning on the unit. Then press and hold the reset button until the unit shuts off and the lights start blinking. Now the hard part. When the lights blink relise the reset button and when the lights go of pres the reset button.the screen will shut off then press the reset button once more and the unit wil go in to recovery.

DiscoveryOV said:
Can you post a picture of the front of your unit?
If your unit is anything like mine, the rst (reset) button does nothing to get you into recovery. The post by vnamee (http://forum.xda-developers.com/showpost.php?p=67552738&postcount=6) works for me. My unit does not have a recessed power button, it's just the volume knob.
Also, ignore step 3.
Click to expand...
Click to collapse
Still on bench for some mods.

zorantoma said:
First it is wery important,to turn on the lights that you see what is hapenning on the unit. Then press and hold the reset button until the unit shuts off and the lights start blinking. Now the hard part. When the lights blink relise the reset button and when the lights go of pres the reset button.the screen will shut off then press the reset button once more and the unit wil go in to recovery.
Click to expand...
Click to collapse
After many attempts its works thanks.

To save thread space: (I came across this when I wanted to get into recovery mode but it didn't have my info)
I have a Joying RK3188 2-DIN 1024*600 unit. It has a power switch on the side (push the volume dial) and a res button recessed in a paperclip hole.
You don't actually need to use the RES although perhaps that's another way to do it.
To get into recovery mode hold down power. After ten seconds you'll see backlit keys blink three times quickly. Continue to hold the power key for three more seconds (I counted 1 Mississippi. etc because it's a little tricky there) Then release power and press it again normally a single time. Don't hold it this time.
Wait for the recovery mode to come up. If you see the joying or car icon you've booted too far and you need to retry. The three seconds after the blink seemed to be the key to it.
Before your flash I would practice rebooting and getting into recovery a few times so you know you've got it down in case something goes wrong.

this worked for me as well on my unit for chevy cruze. I just had to put my key on accessory. then 10 secs , 3 more seconds then push power one time.

I have a HotAudio MTCD unit and this has worked for me everytime.
Turn on your lights so that the hard key lights are on. Hold the power button for approx 10 sec until you see all of the buttons flash 3 times. Keep holding the power button for approx 3 more seconds, then release and immediately just press and release it again once. It will then boot right into recovery.

I have no idea why they made them so complicated to get into recovery mode with the 5.1.1 versions. All the old 4.4 versions it was simple as reset+power, let go of reset and hold power button. These new ones are much more tricky and you have to get the timing just right to get it into recovery. Usually takes many attempts for me to finally get it into recovery mode because I do it so rarely.

How to enter recovery?
I can't create new thread but have similar problems with Opel/Vauxhall Astra J headunit.
Android stucks just before launcher after rooting and installing Xposed and I don't have access to menu.
I want to make full system reset.
How to enter into recovery?

I'm Stuck in Recover Mode Menu (PX-5 MTCD)

I installed "Quick Reboot" application from Google Play Store and select reboot in to recovery mode. My MTCD device rebooted in to recovery mode and i can see the menu. Problem is buttons are not working in this menu. I tried every button. So I can't exit from recovery mod menu.
If I turn off the engine and lock the car and wait some time, after that I enter the car and turn on the engine and i saw see recovery mode menu again.
My main concern is if this device is stuck at recovery mode menu is it cause my car run out of battery after some time?
What should i do?

Did you try to push reset button ? It's navigate in recovery menu...

Find the reset button and long press it. That should reset you beach to factory new.
Sent from my VS996 using Tapatalk

moeduss said:
Find the reset button and long press it. That should reset you beach to factory new.
Sent from my bananaphone using Raffi
Click to expand...
Click to collapse
Nope, it won't.
What physical buttons do you have?
What other threads have you read about this issue and tried?

marchnz said:
Nope, it won't.
What physical buttons do you have?
What other threads have you read about this issue and tried?
Click to expand...
Click to collapse
I have a tiny button behind the SD card slot cover, it nerds to be pressed with a toothpick or something similar. I have a seicane radio.
Sent from my VS996 using Tapatalk

marchnz said:
Nope, it won't.
What physical buttons do you have?
What other threads have you read about this issue and tried?
Click to expand...
Click to collapse
My unit is Android 6.0 version of "https://tr.aliexpress.com/item/32857277792.html". It doesnt have any physical buttons except the one which car already has. "https://i.ytimg.com/vi/Ok_J6oQRLQw/hqdefault.jpg"
I was able to control selections in recovery mode the last time I upgraded to another firmware(If I long press the power button it was selecting an option, if I short press the power button it was changing the selection). And than i updated newest version of MCU. I think new MCU broke this.(My device is from Witson, and i was used MCU update from Witson.) But today, if I press the power button in recovery mode it's turning screen off. If I press it again it's turnning screen on.
My device has a small hole in front of it. (I thought its a microphone.) I tried to push a needle to it to check if its a reset button. Nothing happened.
I think I should disconnect the battery of the car and reconnect it so my device will reboot to firmware normally. After this i will revert back to older MCU and I'll enter recovery mode again to check if buttons are working.
https://img.xda-cdn.com/ce6n--mehLGuMyV2TkWxKyGMW2g=/https%3A%2F%2Fpreview.ibb.co%2FceVU5L%2FIMG-1173.jpg
Edit: I will try to push a needle from that small hole. It looks like there is something behind that hole. https://pasteboard.co/JheL6Ck.jpg Red thing in the left side of screen.

Solved. I disconnected battery from car for 1 minute and reconnected it. Device rebooted in to firmware without any problem.