Database Users

My Uni doesn't boot.

Hello.
I have big problem with my Uni. It's not booting, it's not going to bootloader mode. When I connect Uni to computer the red LED blinks and nothing happen. Battery works in other uni.

hmm leave the uni on the charger with battery in.
also have you tried using another battery in the dead uni?

same problem
I have the same problem during upgrading to wm6.5 computer gave me an error message
i pressed the reset button and the unit went blank
now its dead whatever i do notthing happens bootloader keys , hardrest keys , reset buttons nothing happens
if i connect to the wall charger to the unit nothing happens
if i press reset button red light blink once and if i remove the battery and connect the pda with the charger red light remains on
please help
I connected the unit with charger for whole night hoping it will work but nothing happened even the battery is cold ?

holy **** me too. i borked my sd slot so i took it apart, just popped off the back and fiddled with the sdpins and now it refuses to boot+redlight.
any thoughts? i miss my phone -_-

Hi
I noticed if i connect the device with my pc the red light flushes time to time and the pc gives the error of usb device not recognized please help I miss my o2 exec.
many thanks

keyfetcher said:
Hi
I noticed if i connect the device with my pc the red light flushes time to time and the pc gives the error of usb device not recognized please help I miss my o2 exec.
many thanks
Click to expand...
Click to collapse
did you try another battery in your uni? also did you try tapeing the pin on the battery that reads the voltage level?

according to the universal service manaul flowchart, a redlight indicated bad battery>bad battery pins>shot motherboard.
so i don't think this is good. anyone got any..thoughts on figuring out WHAT exactly happened?

Hi
thanks for the input
will you please guide how I can tape the pin on the battery that reads the voltage level
many thanks

help
I have upgraded my xda exec from wm5 to wm6.1 but later decided to upgrade by downloading this upgrade from xda developer site " BA_6.5.23004.WWE-xplode-R7.1"
during upgrading it reached to 75% and then my pc gave me an error message
unfortunately i continued and later on a gray screen appeared on the xda exec
i pressed the reset button and the unit went blank
now its dead whatever i do nothing happens bootloader keys , hard rest keys , reset buttons nothing happens
if i connect to the wall charger to the unit nothing happens
if i press reset button red light blink once and if i remove the battery and connect the pda with the charger red light remains on
I connected the unit with charger for whole night hoping it will work but nothing happened even the battery is cold ?
I asked my friend to check the power in battery and he said its charged
I dont know what is wrong ?
please help

keyfetcher said:
I have upgraded my xda exec from wm5 to wm6.1 but later decided to upgrade by downloading this upgrade from xda developer site " BA_6.5.23004.WWE-xplode-R7.1"
during upgrading it reached to 75% and then my pc gave me an error message
unfortunately i continued and later on a gray screen appeared on the xda exec
i pressed the reset button and the unit went blank
now its dead whatever i do nothing happens bootloader keys , hard rest keys , reset buttons nothing happens
if i connect to the wall charger to the unit nothing happens
if i press reset button red light blink once and if i remove the battery and connect the pda with the charger red light remains on
I connected the unit with charger for whole night hoping it will work but nothing happened even the battery is cold ?
I asked my friend to check the power in battery and he said its charged
I dont know what is wrong ?
please help
Click to expand...
Click to collapse
I beleive that BA_6.5.23004.WWE-xplode-R7.1 mean blue angel rom. http://forum.xda-developers.com/archive/index.php/t-482997.html
so you are pretty much out of luck unless you can jtag.

again the same problem
keyfetcher said:
I have the same problem during upgrading to wm6.5 computer gave me an error message
i pressed the reset button and the unit went blank
now its dead whatever i do notthing happens bootloader keys , hardrest keys , reset buttons nothing happens
if i connect to the wall charger to the unit nothing happens
if i press reset button red light blink once and if i remove the battery and connect the pda with the charger red light remains on
please help
I connected the unit with charger for whole night hoping it will work but nothing happened even the battery is cold ?
Click to expand...
Click to collapse
...almost the same.
my problem occurred after I did a soft reset. It took it a while to boot and every other time I used soft reset the boot took longer and longer until it did not want to turn on again.
Soft reset doesn't work but when it's left on the charger and pressed, the battery light blinks once. It won't charge and my PC registers a device malfunction when connected through USB.
The only sign of life pops up when I press hard reset but after I press 0 or X nothing happens.
Please help!

I have same problem as well, I even bought spare battery but uni remains dead and silent.
Beside the fact that when it's connected to PC, windows show unrecognized usb device.

what happened before it died? did you ... do anything to it? mines still dead as a doornail.

I am not alone :'(
It means many other fellows are suffering from same.
strange , total silence from experienced guys... atleast they can say it is useless for you to try.. and now dig a grave for it.

Experienced guys have their own lives too
Wait with patience till someone replies you and do not double post on same topic please

Bricked?

Editing this as I'm desperate for help and things have moved on since I first posted, below is where I am up to post 11 of this thread.
I flashed Vegacomb b (exe), it restarted but stayed on the warning about paying for vegacomb for 10-15 minutes which didn't seem right so I held power for 6 seconds and it turned off. After that it would never turn on or go into recovery (I know all the methods, none worked).
Today I unhooked the battery, when I plug the battery back in the screen comes on for a second but then it's as it was, unresponsive. HOWEVER, if I plug the mains in with the battery disconnected then it immediately tries booting but still sticks at the warning (left for over 20 minutes). If I plug the battery in while on this screen then remove the mains it stays on. The power button is unresponsive through this so I still cannot get into recovery.
Any more ideas that haven't been mentioned?
I've tried well over 100 times to get into recovery but it's not happening
anyone willing to have a go at fixing (cheaply!) if I send them it?
Original Post:
Hi guys, just managed to (re?) install Vegacomb (b, from exe), it restarted but stayed on the white screen with the warning text about paying for Vegacomb for over 10 minutes so I held down the power button to turn it off, now I cannot do anything to boot it up (tried holding power button down from 0.5 seconds to 60 seconds!), it also won't boot into recovery. Is there anything at all that can be done to get this going?
cheers

OK, I've tried holding down back while plugging in (fully charged btw), tried all variations of button presses with back and power, with and without USB, with and without power cable.
Only got until 10PM (UK time) to get this sorted (it's now 6PM) so any help/advise would be appreciated

Flash back to modded stock then try again.
From modded stock go app drawer and run recovery
From recovery wipe data, cache then go advance then wipe dalvik
Then press back
Then install zip from SD
Choose vegacomb from whatever directory on your SD you copied it to then confirm
If you ain't Got Vegacombe zip then download it.
Or you could run the .exe again but the above is my preferred method.
Also you might need to download modded stock v2 if you ain't already got it.
Good luck.

intel007 said:
Flash back to modded stock then try again.
From modded stock go app drawer and run recovery
From recovery wipe data, cache then go advance then wipe dalvik
Then press back
Then install zip from SD
Choose vegacomb then confirm
If you ain't Got Vegacombe zip then download it.
Or you could run the .exe again but the above is my preferred method.
Good luck.
Click to expand...
Click to collapse
??
the Vega won't turn on and won't go into recovery, cannot flash anything, nothing comes up on PC, tried all variations of the back and power buttons (inc back, plug in power & usb, press power, leave 2 seconds and release back) over 100 times. it's like it's dead.
the only thing it does is show a blue LED when I plug the power cable in

I've read that if you got less than 50 or 60% battery it wont go into flash mode (back button 2 seconds - power & back 2 seconds)
Have you got enough battery cause mine takes half a day to charge.

intel007 said:
I've read that if you got less than 50 or 60% battery it wont go into flash mode (back button 2 seconds - power & back 2 seconds)
Have you got enough battery cause mine takes half a day to charge.
Click to expand...
Click to collapse
100% (solid blue LED), been on charge for over 24 hours

I'm baffled mate, I've had same issue couple of times but after 10mins or so I've always got it to power back on.

Bricked
I've had the same problem and although quite drastic, remove the rear cover and unplug the battery connection (the multipin one with red and brown/black wires).
With the mains plug out,i found that if you press volume up and power with the wires unplugged and leav eit for a few mins then use back + power it will start as you need it to.
It may take a few tries but i have managed to do it following this procedure about 7-8 times.
Hope this helps.
DAve

I had trouble getting into recovery when the Vega was 100% charged (i.e. charge led was solid blue). When I let it discharge a little so it was flashing with the charger plugged in, I managed to get into recovery then.

dmarchant said:
I had trouble getting into recovery when the Vega was 100% charged (i.e. charge led was solid blue). When I let it discharge a little so it was flashing with the charger plugged in, I managed to get into recovery then.
Click to expand...
Click to collapse
I can't discharge it though as it doesn't turn on, left it 14 hours from last night, back at work again now and it still says fully charged
got the battery disconnected now to give it a try

Disconnected battery for around 10 minutes, put it all back together, still can't boot or get to recovery
EDIT: it works when the battery is disconnected (goes to the Vegacomb warning screen but no further, cannot power off or get to recovery still)
any ideas?

Anyone got any ideas?
it's meant to be unbrickable from what I've read so there must be a way around it but I'm out of ideas!

its user error. remeber to put it into recovery mode you need the power cable plugged into it too as well as usb.

slybunda said:
its user error. remeber to put it into recovery mode you need the power cable plugged into it too as well as usb.
Click to expand...
Click to collapse
Cheers, but its not user error. I'm not that stupid

Hi, this may not help but i had trouble flashing the stock rom because of the battery being fully charged, could only get the screen to light up so left it over night and then went through the normal routine and got into recovery.
Bill

Hi there
Just one question, how do you know for sure it hasn't gone into nvflash mode?
I know what you are going through trying to get the ruddy thing into nvflash, it's a mare if you don't quite get that timing right but seeing as the screen doesn't light up when it's in nvflash what is telling you whether you are actually in it, other than the screen coming on to say you are not or relying on a windows message?
As I said I had the same problems many a time but I use Audi tool now to tell me if nvflash has started, I got it off the Modaco forum, but when you are in nvflash it actually tells you so rather than relying on perhaps windows to tell you it has happened
If you haven't come across the audi tool before then just do a search for it on Modaco, I don't know if they have got it here on XDA.

mmace said:
Anyone got any ideas?
it's meant to be unbrickable from what I've read so there must be a way around it but I'm out of ideas!
Click to expand...
Click to collapse
wow, i'm quite surprised by the number of people who are taking their batteries out when they think there is a problem. You should never need to do this unless it is actually faulty.
Ok yes the Vega is nearly indestructible I have had my in a complete mess many times and have never had to do anything that hard to recover. Some times it will be a pain to get into nvflash mode but this can always be done just have to be patient and know a couple of tricks.
If you have tried the back button and then the power a few times and nothing there is another method.
Instead unplug the power then hold the back button down, whilst holding down the back button plug in the power release the back button after a couple of seconds (I like to count to 5)
I am hoping that you already have the USB cable connected and the right drivers installed on your PC.
Billy..
If you need more help head over to TabletRoms and look in the Vega forum (sorry XDA guys just there is a lot of other useful information there)

wks said:
Hi, this may not help but i had trouble flashing the stock rom because of the battery being fully charged, could only get the screen to light up so left it over night and then went through the normal routine and got into recovery.
Bill
Click to expand...
Click to collapse
I've tired fully charged and letting the battery drain for 40+ mins after it's been on the "warning" screen
mitt69 said:
Hi there
Just one question, how do you know for sure it hasn't gone into nvflash mode?
I know what you are going through trying to get the ruddy thing into nvflash, it's a mare if you don't quite get that timing right but seeing as the screen doesn't light up when it's in nvflash what is telling you whether you are actually in it, other than the screen coming on to say you are not or relying on a windows message?
As I said I had the same problems many a time but I use Audi tool now to tell me if nvflash has started, I got it off the Modaco forum, but when you are in nvflash it actually tells you so rather than relying on perhaps windows to tell you it has happened
If you haven't come across the audi tool before then just do a search for it on Modaco, I don't know if they have got it here on XDA.
Click to expand...
Click to collapse
I have Audi, I also have Device manager open, I know 100% it's never gone into recovery mode sine I started with this problem.
BillyFish said:
wow, i'm quite surprised by the number of people who are taking their batteries out when they think there is a problem. You should never need to do this unless it is actually faulty.
Ok yes the Vega is nearly indestructible I have had my in a complete mess many times and have never had to do anything that hard to recover. Some times it will be a pain to get into nvflash mode but this can always be done just have to be patient and know a couple of tricks.
If you have tried the back button and then the power a few times and nothing there is another method.
Instead unplug the power then hold the back button down, whilst holding down the back button plug in the power release the back button after a couple of seconds (I like to count to 5)
I am hoping that you already have the USB cable connected and the right drivers installed on your PC.
Billy..
If you need more help head over to TabletRoms and look in the Vega forum (sorry XDA guys just there is a lot of other useful information there)
Click to expand...
Click to collapse
TabletRoms has been no help for me, there's been no reply at all for my problem but there has here and at MoDaCo. I pulled the battery as a last resort as NOTHING is working, I've tried all the tricks at least 2 dozen times, some a hundred +, including the one you mention

Well I don't want to teach you to suck eggs, but I take it you did use Audi to delete and replace your drivers.
And then when powering on the Vega you held the back button for 2 secs and then the back and power buttons for 6 secs to get the Vega detected?
For me I can only see that there can only be 3 other possible causes
1./ the back button is broken on the vega
2./ The USB port on your PC or on the Vega has gone up the swanee
3./ The USB lead is no good
The Vega may be unbrickable but if the back button or the USB port has had it then .....

Yeah, tried it, cheers.

[Q] HELP!!! mytouch 4g went into comatose...

my phone just simply went useless after a drained battery more or less a week from now... it wasnt like that before until the most recent update from froyo to gingerbread that my phone just doesnt function or power up after connecting the charger... all it does now is.... if you press the power button itself, it vibrates 3 times then the LED blinks orange and thats it.... if you press power + vol. up, it vibrates 5 times and the LED lights up green. and when connected to my laptop with the orange LED blinking, it is recognized as a USB mass storage device. with the green LED on, it is recognized as "android phone'' - ''adb android interface."
i tried adb but always error no device found or list of devices attached empty/blank... can i still revive my phone???? help please......

Did you try power + volume down? That would get you into bootloader. When you are in there, connect your phone to the computer and download a stock gingerbread ROM and place it on your SD. Rename it to PD15IMG.zip Then the phone will recognize the name and update. Good luck. Thanks if I helped

did that alreaDy.... if i press power + vol. down, my phone just vibrates 5x and the LED lights up green while the screen remains black....

Did you put it on life support? lol jk.
If I helped, give thanks, if you please.
........Death before dishonor........
Team inferno
Leader

badboi409 said:
did that alreaDy.... if i press power + vol. down, my phone just vibrates 5x and the LED lights up green while the screen remains black....
Click to expand...
Click to collapse
Based on what you said, if device is plugged in that adb doesnt recognize it as well as not being able to boot into bootloader I would say that if you are still able to warranty the device with tmo that you better do it soon and let them know that the problem started right after you received the OTA GB update. They shouldnt take any issue if they beleive it may somehow have been caused by them.
Just my 2cp

eqjunkie829 said:
Based on what you said, if device is plugged in that adb doesnt recognize it as well as not being able to boot into bootloader I would say that if you are still able to warranty the device with tmo that you better do it soon and let them know that the problem started right after you received the OTA GB update. They shouldnt take any issue if they beleive it may somehow have been caused by them.
Just my 2cp
Click to expand...
Click to collapse
I agree.
Here are some other options to try. Use the charger and cable that came with the phone and fully charge your battery (if charged already let it die and recharge). Remove battery for about ten minutes and then retry to boot up. If none of this works then you are SOL. Just take it back to tmo and tell them this occurred after the update like eqjunkie has said.

badboi409 said:
my phone just simply went useless after a drained battery more or less a week from now...
Click to expand...
Click to collapse
You said your phone's battery was drained to zero for a week, and after that the device won't start? Therefore it might be a battery related problem. Could you try replacing it with another one? There's a lot of them on the market, and they cost not that much.
Btw Mt4G uses the same battery type as HTC Thunderbolt.

N4 Bricked!! No responses! Just red led when I plug in to AC/USB

Hello guys, first than nothing, sorry for my bad english, isnt my native languaje. I got this problem yesterday in the night of the new year!!!!!!!:crying: I was rooted, using Xylon and Faux Kernel, but the problem appears from nothing!!
The first thing that I detected was, the phone take a WHILE!!! for charge.... then, out of the power, the phone get overheating and discharging so fast, never in life that happends, when N4 got discharged i try to turn on again but download mode appers in the screen, finally I get in the recovery, then I did a wipe cache/system and factory reset. Install again the Xylon... but when phone finally turns off, when I plugged in to AC absolutelly nothing happends, the led just turn in red, and the N4 dont start in FB, dont get charge, dont do a sh*t !!!! I conect it to the PC but also nothing appends, the N4 doesnt appear in my device list.
So... my N4 its broken?

There was possibly something wrong with the kernel and rom combination that caused your phone to overheat. I think eventually the heat may have damaged your hardware. Sorry but, if something was wrong in the first place it was not a good idea to reinstall the same thing that was causing the problem, if I were you I would have flashed a stock ROM. My only advice now would be to RMA it and pray
EDIT: I found this if it helps at all:
If you are unable to access the settings menu of your device, you can still reset your phone by performing a Hard Reset. Here are the instructions:
If your phone is on, power it off.
Press and hold Power until the device powers on, then immediately press and hold Volume Down (while still pressing Power). You will see the word Start with an arrow drawn around it.
Press Volume Down twice to designate Recovery mode.
Press Power to restart into Recovery mode. You will see an image of an Android robot with a red exclamation mark.
While holding down Power, press Volume Up.
Use the volume keys to scroll to "wipe data/factory reset" and press Power to select it.
Scroll down to "Yes - erase all user data" and press Power to select it.
Note: If at any point during the above steps your phone becomes unresponsive, you can restart it by holding down the power button for several seconds.

Before you try anything else, try and leaving it plugged in for a while and then try turning it on. Or leave it plugged in to a computer then try turning it on.

joshnichols189 said:
Before you try anything else, try and leaving it plugged in for a while and then try turning it on. Or leave it plugged in to a computer then try turning it on.
Click to expand...
Click to collapse
Try this. I haven't had it happen to me, but I do have a friend who this exact same thing happened and he thought it was bricked. He left it plugged into AC over night, and in the morning it would turn back on.

First than nothing, thanks for reply, I appreciate your intentions to help me.
I will leave it charging all the night and while Im working too... I hope after that, the phone at least turn on.
I dont install the STOCK ROM because I dont have it in my internal memory and I was in my girlfriend house, the night of the 12/31/12, there is not much to do...
I did the same post, but a little bit more explained
Its here: http://forum.xda-developers.com/showpost.php?p=36165434&postcount=2708
(In case you want to know all details about this problem..)
And Thanks againf for your help!

got the same ****
have a look here
http://forum.xda-developers.com/showthread.php?t=2050811&highlight=bricked+
we are not alone with that problem
some more people have the same problem
i did not even overclocked or benchmarked..
read this post, maybe its helpfull for you
http://forum.xda-developers.com/showthread.php?t=2011328

battery
It could be bad battery, how long did bought of you had working phone, how many times did you charge?
Did you use out of the box charger?
Did you have problems with usb jack?

kibox said:
It could be bad battery, how long did bought of you had working phone, how many times did you charge?
Did you use out of the box charger?
Did you have problems with usb jack?
Click to expand...
Click to collapse
I bought it the 13/nov..
I received it 29/nov.
I ALWAYS use stock charger, only 1 time i try to charge it in my car, but it was less thant 5 minutes, I decided dont charge with the car because the energy variates when I accelerate...
After that, I use my phone quiet normal.

I had this problem with my nexus 7. I think my battery died all the way and it couldn't charge. The stick charger wasn't doing anything. But I plugged it into my computer for a few minutes and tried turning it on. Then when the loading screen appeared I ran it to it's stock charger and charged it to full. Your battery probably died. Try different combinations of ways to get it to take a charge. Just long enough to turn on then plug it into its charger. Though the overheating could have fried it
Sent from my SPH-D710 using xda premium

[Q] N4 doesnt turn on. Red Light blinks once.

Hello.
When I try to turn on my N4, I hold power button, and after about 10 seconds Red light blinks (just once, if it's connected to USB that 1 blink last for 3 seconds, if connected to wall, it's just quick 1 blink. If it not connected anywhere there is no action at all, it just stays dead, no blinks, nothing). Same if I try to go in bootloader by holding volume down+power.
This happened after I successfully installed CM12, with no errors. Then I rebooted my phone, and it just stayed black as it is now. Battery was around 25~30% that time, and phone was connected to USB.
Did I bricked my phone totally? I am now trying to charge it up already for 1 hour... but it nothing changes.
I have searched here for similar problems, but couldn't find solution...
Edit: Charging already for 10h+ , still same..
Edit2: I removed battery, reconnected after a while, still same problem.
So I tested it with multimeter, it says 2.6V, but fully charged must be 3.8V. Could this be a problem? I was charging it for whole night.
Edit3: I just got new battery . But it looks the same.. phone doesn't boot up.. same red light blinks once.. so.. its my phone is dead? I can't believe that...
When I connect to PC usb, there are unrecognized deviced called "QHSUSB_DLOAD".

easy fix
Hold down the power button and the volume down button at the same time until phone reboots. If you see the little android no need to worry just let go and wait for your device to reboot on its own. This is not a factory reset it's just like restarting your device. :good:

zelexon said:
Hold down the power button and the volume down button at the same time until phone reboots. If you see the little android no need to worry just let go and wait for your device to reboot on its own. This is not a factory reset it's just like restarting your device. :good:
Click to expand...
Click to collapse
I have tried that many times. Nothing. It's bootloader screen, but I can't get there. Nothing happens. If I keep holding volume down+power it just keep blinking once every ~10 seconds, same if I hold just power button. If phone is not connected to charger, there are no blinks at all.

I removed battery, reconnected after a while, still same problem.
So I tested it with multimeter, it says 2.6V, but fully charged must be 3.8V. Could this be a problem? I was charging it for whole night.

Cracken6 said:
I removed battery, reconnected after a while, still same problem.
So I tested it with multimeter, it says 2.6V, but fully charged must be 3.8V. Could this be a problem? I was charging it for whole night.
Click to expand...
Click to collapse
I had the same problem a year ago, I tried to remove the battery, charging all night, and other solutions that I found online and no one worked.
Finally I found here in XDA a user with the same problem and his solution was charger the phone with a wireless charger, a friend of mine has one and I put the phone to charge and after a few minutes the screen goes on and the phone was charged, then I press power button and the nexus run again.
Hope this works.
Sorry for my bad English, I'm from Spain.
Good luck.
(I bought a wireless charger in case it happen again)

I don't know anyone with wireless charger. I already ordered a new battery, and then I probably will get wireless charger also. Ty.
But this problem is very weird if you think so.. I think it happened because of many aspects together:
1) Battery was already below 30%
2) I pretty regularly charge phone with USB (won't do it again)
3) It was connected to PC USB in same time.
4) I installed CM12 ROM in same time
So main reason I think is USB, that I restarted phone while it was on pretty low battery and with USB connected.. phone restarted and got invalid voltages and couldn't even boot up or charge phone. I also found an article which says, minimum voltage, when phone battery has 0%, it's 3.0V, so I was below that.. it just screwed everything and battery died. Well, I am not sure for 100% that it's battery fault, but I hope so, I really love my N4 and still wanna use it for long time, I hope it's not dead phone, just a dead battery. Lets see! I will update this thread , when I get my new battery (less than month probably).
Sorry, my english is also not perfect. I am from Latvia.

I was playing when it happened to me. The phone was very very hot and the battery was around 70%. When I put in the wireless charged and I can reboot the phone the battery was at 65%, so it had charge but the phone won't boot.
I charge my phone almost every day, sometimes with AC, others with USB (plugging to PC) or wireless that depends of my needs
I hope you can fix it. Good luck.

Btw. Do you know if battery charges with wireless charger, if it's removed from the phone?

Don't think it does, since the receiving coils for wireless charging are located just behind the glass back.

Flipz77 said:
Don't think it does, since the receiving coils for wireless charging are located just behind the glass back.
Click to expand...
Click to collapse
The battery will charge with a NCF Charger
Major Issue Google
This "Nexus SOD" issue is showing up on many sites across the Internet. I have multiple "Nexus" devices including 2 Nexus 4, 1 Nexus 5, 2 "Nexus 7 2013". It suddenly started out of the blue with one of my Nexus 4 phones. Symptoms included rapid battery discharge. I am using Lollipop 5.1 on all devices. There are many claims as to the cause, Hardware Motherboard, Power Button etc. Others claim it is "Software Related" or App Related. The problem effects Nexus 4 and Nexus 5 phones. I have ordered a new motherboard for my nexus 4 device and see if that makes a difference.
This problem should warrant a "Major Android Lollipop Crisis Team" by Google to investigate the cause and let us know what it is and what Google is doing to solve the problem before moving to announce "Android M". This issue needs to brought up and actively pursued at the upcoming "Google I/O Conference" by the strong Android Developers Groups to press for "Formal Action"

charging method
Cracken6 said:
I have tried that many times. Nothing. It's bootloader screen, but I can't get there. Nothing happens. If I keep holding volume down+power it just keep blinking once every ~10 seconds, same if I hold just power button. If phone is not connected to charger, there are no blinks at all.
Click to expand...
Click to collapse
I had this problem a long time ago and my fix worked for me after doing a little research it seems like this is a case called battery total discharge. The fix was simply to charge your phone using the wall adapter that came with your phone (I still use my old apple cube wall thing) and to wait for the red light to appear then wait about ten minutes before trying to reboot.

I just got new battery . But it looks the same.. phone doesn't boot up.. same red light blinks once.. so.. its my phone is dead? I can't believe that...
When I connect to PC usb, there are unrecognized deviced called "QHSUSB_DLOAD".

Maybe this video will help you: Oh I´m not allowed to post links until now.
Just search for: - Nexus 4 "red light of death" fix - at youtube.
Hope it will help

AndRe5575 said:
Maybe this video will help you: Oh I´m not allowed to post links until now.
Just search for: - Nexus 4 "red light of death" fix - at youtube.
Hope it will help
Click to expand...
Click to collapse
I have checked all kind of videos there. Also that one. Most of these cases are related to battery, but it seems in my case it isn't. I just searched for QHSUSB_DLOAD unrecognized device, all posts says it means phone is bricked... But cmon, how? I installed CM12, successfully, without any errors, then just restarted phone, and its dead...

Cracken6 said:
I have checked all kind of videos there. Also that one. Most of these cases are related to battery, but it seems in my case it isn't. I just searched for QHSUSB_DLOAD unrecognized device, all posts says it means phone is bricked... But cmon, how? I installed CM12, successfully, without any errors, then just restarted phone, and its dead...
Click to expand...
Click to collapse
Did u try booting the phone without battery by connecting to wall charger and what about flashing stock ROM via PC
Also check that the power button works
This case should be solved

as9333 said:
Did u try booting the phone without battery by connecting to wall charger and what about flashing stock ROM via PC
Also check that the power button works
This case should be solved
Click to expand...
Click to collapse
Just tried booting without battery, and connecting to wall. Same - red light blinks once, after I hold Power button or Power+Volume down for about 15 seconds. If I keep buttons pressed, it just repeats every ~15 seconds.
Power buttons works fine.
After I checked that Device manager thing in google.. it looks very bad.. phone is dead.. probably need to change motherboard. I am just shocked, how this could happen... I didn't receive any errors during CM12 installation. Phone just instantly died after restart.