Develop Bugs

[Q] Help!! a100 Blackscreen

i have a a100 with the latest flexreaper rom installed and im stuck with a pretty serious issue:
a couple of days ago the tab was acting real slow and sluggish and getting bad battery life didnt think nothing of it so i just rebooted a couple times and left it alone . all was good untill the battery hit 10% and i plugged it up using the factory ac adapter. the next day (maybe 6-7 hours later) i went to turn it on and nothing no vibrate no screen flash nothing; other than the power button turning blue as i pressed it and it would stay on for a couple hours but still no other response from the tablet.
im at my wits end on what could be wrong and now i got my wife with her foot on my neck till i get it fixed. can anyone help me?
ive tried to do a hard reset with the reset button tried to boot into recovery /bootloader no dice
(also my home button flashed a couple time i pressed the power button) dont know if its relevant but wanna get as much info out as possible

wondering if anyone can help me...

frenize said:
wondering if anyone can help me...
Click to expand...
Click to collapse
It may take awhile for someone to see this and form something to try, random bricking for no reason is rare, its almost always some error by the user. However have you attempted adb connection to it? Leave it powered off, connect to the PC you used to unlock the boot loader then power on. Does the PC make the USB connect sound? Does the Acer vibrate? Did the home key blink again?
It really sounds like your boot partition is wrecked which wouldn't normally happen outside of flashing. If boot loader is trash then it won't know what to do and just sit there. No recovery or anything else.
Tapatalked from my Galaxy S II.

pio_masaki said:
It may take awhile for someone to see this and form something to try, random bricking for no reason is rare, its almost always some error by the user. However have you attempted adb connection to it? Leave it powered off, connect to the PC you used to unlock the boot loader then power on. Does the PC make the USB connect sound? Does the Acer vibrate? Did the home key blink again?
It really sounds like your boot partition is wrecked which wouldn't normally happen outside of flashing. If boot loader is trash then it won't know what to do and just sit there. No recovery or anything else.
Tapatalked from my Galaxy S II.
Click to expand...
Click to collapse
it made something like the connect sound but instead of the regular duh doom sound it did a dadadoom (kinda hard to describe the sound) but it was faster than ive ever heard the connect sound before which is weird. the tab didnt vibrate and it seems the home button blinks when the tab is dead and needs recharged

frenize said:
it made something like the connect sound but instead of the regular duh doom sound it did a dadadoom (kinda hard to describe the sound) but it was faster than ive ever heard the connect sound before which is weird. the tab didnt vibrate and it seems the home button blinks when the tab is dead and needs recharged
Click to expand...
Click to collapse
Yeah I know that sound it means USB connected but error for some reason. Its been shown if this thing dies all the way down it wont read the battery correctly and probably needs to be sent in. Before that I personally would unplug it open it up and remove the battery for awhile, maybe an hour then put it back and plug it in. But thats me, not the advice I'm giving. If you have warantee on it use that.
The batteries on a lot of devices and laptops etc have something of a fail safe, if the voltage drops below a certain point it trips to prevent cell damage, however it renders the battery useless.
I haven't searched out much past that if a reset is possible by us, but it seems the pack is trash after or needs sent in.
Since this is a sealed unit you void warranty opening it (well unlocking the boot loader did too) so you can't send it in for repairs without paying for it.
I hope someone can jump in and help figure this out, and prove me wrong.
Tapatalked from my Galaxy S II.

Weird, This exact same thing happened to me. Used it in the morning and now after work it won't turn on. I had already tried disconnecting the battery, but hadn't thought to leave it disconnected for an hour. My tablet has been running the leaked ICS since it came out and The last factory reset it had was about a month ago. It was working fine up until this. The power button seems to be responding correctly, the issue is that after the LEDs light up, there is no vibration or display. I hope someone can help us with this issue.
EDIT:
It won't connect in ADB mode. It will only appear on my computer as an APX device and since there is no vibration I am unable to boot into fastboot. Any help or suggestions? All the threads I have found have involved booting into fastboot.

i am also having this problem. i set ti backup last night to save to box i turned it on this morning it.worked set it on the charger came back to a frozen screen. I turned it off now just a black screen it turns on or the home button dose but nothing comes up on the screen

same thing here.
max69power said:
i am also having this problem. i set ti backup last night to save to box i turned it on this morning it.worked set it on the charger came back to a frozen screen. I turned it off now just a black screen it turns on or the home button dose but nothing comes up on the screen
Click to expand...
Click to collapse
I have been using ICS the leaked one, and last night I was goint to check my email and it did not turn on, I though the battery died. I plugged to the charger and this morning I tried to turning it on but it failed. I did the reset pin but nothing. I connected to the computer and it was recognized as a APX device and installed a driver ACER Picasso USB recover but i cant access anything. I am a nob. Thanks

A100 blackscreen
i am also having this problem. last night. just a black screen it turns on or the home button dose but nothing comes up on the screen. :crying: Help!!!!!!

Has anyone tried holding the power button for a while? Laptops do this too, if someone felt ventures, try taking the battery out and hold the power button. No promises, might work.
sent from my ICONia

same here
Having the exactly same issue, here...
I also tried to hit the hardware reset button and it does not help.

If the screen is blank while powered on its in failsafe mode, in other words is bricked, has to go to Acer.
Tapatalked from my Galaxy S II.

This just happened to me a few weeks ago as well. If you are still under warranty send it in to Acer, thats what I did. I just got an email saying they had fixed it and were sending it back for free!!
At the time I was on the 9/02 JB build. I wonder if this issue is caused by faulty hardware or if it is an issue that was made by rooting and unlocking it? I don't know enough about this stuff to answer that though, but it does make me think whether I should root/unlock it when I get it back or leave it stock.
Also thanks Pio_masaki for helping me a few weeks back wasn't sure if I was even going to send it in until you said they most likely won't be able to tell.

I highly doubt they even CARE when sending these in. They will void for physical damage most likely.

tshm55 said:
Having the exactly same issue, here...
I also tried to hit the hardware reset button and it does not help.
Click to expand...
Click to collapse
Ohmygod,
Same here, but it's 3 years ago. Sorry for digging the topic. Still no hope? I still keep the tablet and have just buy another refurbished mainboard to replace but still no vibrate and blacksreen still there.

Galxy s2 Vibrating and crashes at loading bar.

So i've looked around and no one that i've seen has the same exact problem as i do. Here's my post in another forums about my problem.
Here's my story about my Galaxy s2 for T-mobile. My phone randomly turned off 2 days and whenever i tried to turn it on, it would restart and basically never get pass the blue loading bar screen. Second, i found out about this boot loop sequence and i was able to do a factory wipe.
After i factory wiped the data etc off the phone, i was able to use it until it ran out of battery, but then after i found out it ran out of battery, it wouldn't let me turn it back on, it wouldn't get pass the loading screen, once again. On the other hand, i am able to go to recovery mode or download mode, but the phone shuts off before i can even try and click on the options i want.
Today, i found out that if i kept pressing power button consecutively on the phone, I'd be able to go to my home screen and basically act as if nothing ever happened, it'd function as a new phone! I then had the nerves of turning off my phone just to make sure it finally works now, but my hopes were crushed and now the pressing the power trick does not even work anymore. It would probably work one out of 10-15 times, and in the end it'd still restart. I am using a gingerbread galaxy s2. My friend tried using the usb jib on my phone, and it worked but whenever he tried to plug in the usb, the phone would just restart. I am extremely frustrated with this, and if you can help, please do so because it's important that i fix this phone. If you have any questions, please feel free to ask!
Hi there, thank you for the welcoming me to the forums. No, my phone is not rooted, it has always been gingerbread etc i never tried rooting because i never knew how:/ I believe this started when i was just browsing around facebook, so i'm not entirely sure what happened... Uhmm i tried going to download mode through the volume keys and power button when it's connected to usb to the i think it's odin3? and it'd be in the download mode but as soon as the computer says it's connected, the phone would just turn off again and bam, it's like nothing ever happened. My phone does charge when it's plugged in, but it doesn't show it's being charged but i remember my battery was dead last night and i charged it till today and now it's got power. ANd no i don't have a warranty:/ i really hope you can help me

Sounds like a faulty power button. Check out Mobiletech video for thier power button repair service.
http://mobiletechvideos.mybigcommerce.com/samsung-galaxy-s-ii-t-mobile-power-button-repair/
Sent from my SGH-T989 using xda premium

[Q] Touch Screen Not Working

Guys my N7 touch screen suddenly stop working, I din't drop it or nothing fell on it, I was just using it, I put it down on the side, when I tried to unlock it, it didn't work, I gave a minute and the same happen.
This happened last night, my battery still has some juice and I don't know how to re-start it?
Help please.

palomosan said:
Guys my N7 touch screen suddenly stop working, I din't drop it or nothing fell on it, I was just using it, I put it down on the side, when I tried to unlock it, it didn't work, I gave a minute and the same happen.
This happened last night, my battery still has some juice and I don't know how to re-start it?
Help please.
Click to expand...
Click to collapse
If you press and hold volume down and power that will reboot it.

Holding down the power button should be able to restart it also. Try that, and then try a cold-boot if that didn't work. It might be a faulty digitizer, and if so, I would recommend sending it in for service. We can fix the touch screen issue for you pending any physical damage to it.

You're not the only one
http://forum.xda-developers.com/showthread.php?t=2386151

Verizon G3 won't power up

Hey there. Hoping someone can help me out here. Long time lurker, and I used the search button, but similar threads did not help me out...
I was out and about yesterday, phone was fully charged, and working just fine. I had used my phone and place it back into my pocket. A couple hours later, I pull the phone out to check the time, and it won't turn on. I assumed the phone had shut itself off like it has in the past randomly. So I press and held the power button. Nothing comes on at all. Screen does not turn on, there is no boot sequence, no LED light, NOTHING. I proceeded to remove the battery and replace it, still no power. I press and held the power and volume down, NOTHING. I read on here about removing the battery and holding the power button for 15 seconds to clear any power in the phone, put the battery back in and on the stock charger for 15 minutes, then trying to power the phone up. NOTHING. I took the phone to Verizon, and they were no help, they could not power the phone up either. We even tried a different battery. I am not awaiting a refurbished phone... only problem is I have loads of pictures saved to the phone (I don't use an SD card).
I am creating this to reach out and see if any of you know of a method I can try to get this phone to begin working?
At the very least, I would like to pull the pictures and files I have downloaded onto the phone... and I am really hoping that there is a way! (I have my serious doubts since the phone doesn't power up... but still I want to ask).
Any help would be GREATLY appreciated!
And thanks in advance for anything that may be provided!

Two options I would try:
-leave the phone plugged in a whole night/day (original charger)
-try a spare battery (if you didn't already)
-clean all contacts

Definitely try leaving it plugged in for a while. Also, have you tried hooking it up to your PC? Does the computer recognize the device?

Rodeojones said:
Definitely try leaving it plugged in for a while. Also, have you tried hooking it up to your PC? Does the computer recognize the device?
Click to expand...
Click to collapse
Hi all, stumbled upon this thread while google searching. I'm also having similar problem as op. one moment the phone was working, next moment cant power it on no matter what buttons I press.
To answer this question, at least for me, when I hook it up to my PC it just shows QHSUSB_BULK, which according to my research means its been hard bricked.
I'm probably going to send it in for repairs

battle3321 said:
Hi all, stumbled upon this thread while google searching. I'm also having similar problem as op. one moment the phone was working, next moment cant power it on no matter what buttons I press.
To answer this question, at least for me, when I hook it up to my PC it just shows QHSUSB_BULK, which according to my research means its been hard bricked.
I'm probably going to send it in for repairs
Click to expand...
Click to collapse
What did you do that may have led to a hard brick?

Rodeojones said:
What did you do that may have led to a hard brick?
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Click to collapse
Idk. its odd. I fired off a text message, placed it face down on the table. Came back 5 mins later to check it and it wouldn't work.
The only thing I did was root the phone, and did very minor tinkering like use xposed framework. Didn't flash a rom or anything.

battle3321 said:
Idk. its odd. I fired off a text message, placed it face down on the table. Came back 5 mins later to check it and it wouldn't work.
The only thing I did was root the phone, and did very minor tinkering like use xposed framework. Didn't flash a rom or anything.
Click to expand...
Click to collapse
Wow, that's terrible. What module? I know messaging with the build prop can are you up, but I've been tinkering with various Xposed mods for a while and never had an issue. And I'd think if it was a bad module you'd have seen the issue immediately, not after a random text message. That's just bizarre.

Rodeojones said:
Wow, that's terrible. What module? I know messaging with the build prop can are you up, but I've been tinkering with various Xposed mods for a while and never had an issue. And I'd think if it was a bad module you'd have seen the issue immediately, not after a random text message. That's just bizarre.
Click to expand...
Click to collapse
yea. its weird. the two modules I used were the volume one and the one hiding root from Isis wallet/softcard. I'm going to get a replacement phone from Verizon. Will let u know how it goes. :/

M9 won't turn on anymore - bricked?!

Hey guys
I was super happy with my Australian Telstra M9 until an hour ago. I plugged it with 3% of battery in for charging and turned it off to speed the process up. When it was off the charging icon showed up just as usual. After a few hours I came back, unplugged the phone and it flashed 100% for a second. After that - nothing! It just won't turn on! I pressed every button and every possible combination of those. I plugged it back in for a bit and connected it to my laptop. But it's not even recognized. I googled for a bit but found no solution. I rooted the phone a couple of weeks ago but didn't do anything like that today. No updates, no new apps only some WhatsApp and 9gag.
What do you reckon? Is it bricked? Will I get a replacement and how long will that take? I have to leave Australia in 9 days so I'm quite on a schedule. -.-
Does anyone have any advice?!
Cheers Max
Edit: is there a chance to recover the data? I'm traveling and forgot to back anything up. Some of the data is quite important. And do you think I'll get into trouble because of the root?

No clue, try a different charger maybe.

I tried three different charges plus my laptop. Neither of them worked. Is there gonna be any way to rescue the data from the internal storage or will the just wipe it after they repaired it?

I would try holding the power and volume up button for at least 2-3 minutes. If it does come on, as soon as you feel it vibrate, move your finger down to the volume down button and hold it until you get into download mode. Then boot to the bootloader and then recovery and restore a nandroid.

Oh my god!!! Thank you so much! I have no idea why but after a minute it booted up just fine an all my data are still there. I'm never ever gonna forget a backup anymore. But what happend? Why did it start again? Battery is down to 50% so it seems it has been running all night and was stuck at some point. What can I do to avoid this from happening again? I don't wanna get a heart attack every time the phone won't turn on
But for the moment I'm alright! Thank you, thank you, thank you!

MrDuvet said:
Oh my god!!! Thank you so much! I have no idea why but after a minute it booted up just fine an all my data are still there. I'm never ever gonna forget a backup anymore. But what happend? Why did it start again? Battery is down to 50% so it seems it has been running all night and was stuck at some point. What can I do to avoid this from happening again? I don't wanna get a heart attack every time the phone won't turn on
But for the moment I'm alright! Thank you, thank you, thank you!
Click to expand...
Click to collapse
Hold power + volume up button will work in most cases.
TBH, don't really know what happened to you. Did you flash custom rom, recovery? or only root?

I didn't know that. I only new power + vol down. And I didn't hold it for a minute. I did nothing but flashing TWRP and root the stock rom. I didn't even change much with the root and only use it for titanium backup and adaway. That's why I was so baffled, when the phone suddenly "broke" because I didn't do anything unusual to it.

MrDuvet said:
Oh my god!!! Thank you so much! I have no idea why but after a minute it booted up just fine an all my data are still there. I'm never ever gonna forget a backup anymore. But what happend? Why did it start again? Battery is down to 50% so it seems it has been running all night and was stuck at some point. What can I do to avoid this from happening again? I don't wanna get a heart attack every time the phone won't turn on
But for the moment I'm alright! Thank you, thank you, thank you!
Click to expand...
Click to collapse
I'm glad you got your phone up and running. I know exactly how you feel, I had the same thing happen to me. I thought mine died when the screen went black after I flashed a kernel. Its always scary when the phone won't respond.

The phone was likely frozen. Power + Volume Up forces the phone to reboot after being held for a while. It could be some weird software issue due to the rooting and TWRP, but no one can say for sure. It might happen again but now you know how to reboot it If you really want to avoid the possibility of problems, you probably want to run stock and not root the phone or change bootloader... but what's the fun in that?

You're right no risk no fun. I'm actually waiting for cm so running stock is no option anyway
Thanks for saving me lots of headaches

FYI - I thought I had bricked mine as well - no flashing activity in a couple of weeks, all good chargers. Even made an appointment for repair.
Read the "hold power and vol up for a minute or two," and was like... nooooo... 10 seconds is the max you'd do that for... but tried it... bam, worked like a charm at ~45 seconds for me. Got into HTC FTM mode in which no option worked (reboot to bootloader, simlock, couple of others seemed to just pop immediately back to this weird non-download menu). Holding power for a while after that reset the device. Working now.
Thanks for the thread... been doing this for five years and this is the first no-charge no-response event I've had

lyall29 said:
I would try holding the power and volume up button for at least 2-3 minutes. If it does come on, as soon as you feel it vibrate, move your finger down to the volume down button and hold it until you get into download mode. Then boot to the bootloader and then recovery and restore a nandroid.
Click to expand...
Click to collapse
Worked like a champ, thanks a ton! :good:

Hi All,
About a week ago my M9 powered down while on charge and then wouldn't power on again. No response at all from the standard power button but only holding it for a few seconds at a time.
I knew the buttons to hold to enter bootloader and after several tries it powered on again.... It then ran for a couple of days with no issues.
Then a couple of days later had to power off the phone on a flight - same issue - wouldn't power on - dead.
It took several attempts to bring it back to life. I'm now in a position when every time I power off the phone it just doesn't want to come back on? Thought that it may have been a custom rom issue or a kernel issue - have tried changing both (painful experience by the way - having to wait for the phone to decide when its ready to wake up "when it feels like it after each new installation) but the problem is still there.
I have also found that entering bootloader using the power button and volume button isn't the only solution to "waking up" the phone. Just holding the power button for 10-60 seconds has the same effect - but it sometimes takes several attempts over several minutes - its very random.
Does anyone else have this recurring problem every time they power off? Does anyone on "stock" have the problem?
I'm starting to think that maybe its hardware rather than a software issue?

Try turning off the phone, plugging in the charger, and holding all three buttons for two minutes.
HTC has recommended this as a fix for battery issues like the slow charging bug. Apparently it clears all the battery settings and recalibrates it. The phone will reboot repeatedly while you're doing this, but that's normal. Keep holding the buttons.
I have seen HTC phones do this in the past when the battery system gets confused.

Bricked M9
iElvis said:
Try turning off the phone, plugging in the charger, and holding all three buttons for two minutes.
HTC has recommended this as a fix for battery issues like the slow charging bug. Apparently it clears all the battery settings and recalibrates it. The phone will reboot repeatedly while you're doing this, but that's normal. Keep holding the buttons.
I have seen HTC phones do this in the past when the battery system gets confused.
Click to expand...
Click to collapse
My M9 is not quite 6 months old - ALL stock. Went to bed last night , M9 quick charger plugged in with green light and phone power on - just in airplane mode. Woke up 4 hours later and found the phone dead.
I tried 1 button, 2 button, and 3 button holds for 5 minutes each, plugged in and not plugged in - still dead!
Any help would be appreciated.

aairlinepilot said:
My M9 is not quite 6 months old - ALL stock. Went to bed last night , M9 quick charger plugged in with green light and phone power on - just in airplane mode. Woke up 4 hours later and found the phone dead.
I tried 1 button, 2 button, and 3 button holds for 5 minutes each, plugged in and not plugged in - still dead!
Any help would be appreciated.
Click to expand...
Click to collapse
Best to run a logger like BetterBatteryStatsor GSam Battery Monitor to find out what is draining it

sausje85 said:
Best to run a logger like BetterBatteryStatsor GSam Battery Monitor to find out what is draining it
Click to expand...
Click to collapse
I am unaware of any way to do this if the phone wont turn on - it's dead.

aairlinepilot said:
I am unaware of any way to do this if the phone wont turn on - it's dead.
Click to expand...
Click to collapse
Ah you cannot even get it charged anymore?
I know HTC phones had an issue that when they are completely drained, they seem to be dead, even not charging or anything. Yet if you keep them in the charger, eventually they would show as charging and being able to turn on again.

aairlinepilot said:
My M9 is not quite 6 months old - ALL stock. Went to bed last night , M9 quick charger plugged in with green light and phone power on - just in airplane mode. Woke up 4 hours later and found the phone dead.
I tried 1 button, 2 button, and 3 button holds for 5 minutes each, plugged in and not plugged in - still dead!
Any help would be appreciated.
Click to expand...
Click to collapse
Leave it in connected to the stock charger overnight and see if that helps. If not, you might have a hardware fault and need to return it for warranty service.

I too thank you most profusely!!