Wizard not turning on. Doesn't boot. - 8125, K-JAM, P4300, MDA Vario General

Hello, a while back I posted a charging problem, which turned out to be the Mini-USB and Wall Charger was bent, and before that, the Mini USB outlet in the phone broke entirely. Well, another problem has arisen, as finally got a new charger yesterday, and worked perfectly. So, I shut it off, and left it to charge overnight. Now, the problem? All of a sudden, it refuses to boot. Held down the power button for 5 seconds, 20 seconds, and a full minute. Nothing. Any suggestions?
~Infinity

nothing AT ALL? or the screen turns on and gets stuck?
if nothing at all happens, try the battery jump start method

Well, after constant trying at starting the phone, I managed to have it boot after hours. What happened? During the boot,where it displays Windows Mobile 6, a line appeared, and the phone darkened, and then crashed.
What the hell.

I suggest a hard reset......

BASSMANBOB said:
I suggest a hard reset......
Click to expand...
Click to collapse
....................And how can I hard reset when it doesn't boot, and whenever it does, crashes during it?

Anyone that's here help?

I'm currently having the same problem with mine. Hard resetting didn't work for me but you may as well try it.
If you can get it to start booting for just a few seconds you can hard reset it without loading the operating system. As soon as you get it to turn on, hold down the Wifi and Voice command buttons (one's on the left, one on the right). After holding those down, press the soft reset button (the little button on the right that you can press with your stylus) very quickly and release it. If you hold the soft reset button too long, it will perform a regular soft reset and you'll have to start over, so do that quickly.
A black screen should come up and tell you to press your send button to hard reset your phone.

I have similar problem,It's turn on to the logo that's always shown when boot and then it show the logo till it discharged.I tried hard reset,but it's still the same,i post 2 topic's in this website and no one help me

i too am facing the same problem, i was able to start it a few times but it crashed after a few seconds each time. i m gonna charge it all night and see if it starts. right now all i m getting is the red led. i really hope someone finds a solution soon.

With me it was my battery that caused the problem. Try it with the battery of another wizard. Succes, Rietje

ok so i charged it for more than 12 hours and my wizadr still didnt start.
I then got a NEW BATTERY and my wizard turned on within the very moment i pressed the power button.
So any one who is facing a similar problem should try a new battery.

Yea,this is a second time when i have this problem.I both A new battery,BUT IT STILL THE SAME!!!
First time when i both a new battery it was working fine,but now the battery won't help

Infinity M said:
Well, after constant trying at starting the phone, I managed to have it boot after hours. What happened? During the boot,where it displays Windows Mobile 6, a line appeared, and the phone darkened, and then crashed.
What the hell.
Click to expand...
Click to collapse
faced a similar problem a while back. i replaced the battery and the phone was back to normal

someoneee said:
Yea,this is a second time when i have this problem.I both A new battery,BUT IT STILL THE SAME!!!
First time when i both a new battery it was working fine,but now the battery won't help
Click to expand...
Click to collapse
try a battery frm a friends phone. u ll be sure that the battery u r using works fine. if ur phone still doesnt work then u need to have it checked.

i have same problem,,and i use T-Mobile MDA Vario
is it just battery problem or not?and if the PDA inactive it can still charge or not?
and i usually use blackberry charger to charge my PDA,is it ok?and is there any possibility my PDA can't work again?i hope not
pls help me..

Well for starters, charging your phone overnight will probably damage the battery over time. It's only the newer phones and batteries that are able to withstand extended overcharging times without serious damage to the battery. With older phones including the K-JAM/MDA Vario, the battery is meant to be charged till its full, and no more. If you overcharge it, you run the risk of damaging your battery and possibly the phone too.
If a new battery hasn't fixed your problem, the problem lies in your phone's mainboard.
Try charging your phone from a USB port on a computer to see if anything happens.

Related

New problem with intermittant soft rebooting

Soft reboots about 1 time per half hour now. Seems to have a hard time coming back to life after shutting down--flickering screen also the orange charge light goes off. Just happened again. This sucks.
Could be related to the charging function??
Did you installed any suspicious software lateley?
Have you tried a hard-reset? (do a backup first)
Now its hard rebootng by itself.
Its hard rebooting byitself now.
No new software. Looks like a trip to the shop where i bought it for service.
Pressing the power switch does a hard boot now.
Checking now the reset button--could be jammed.
On about the 10th hard reset--every time it completes installing and thenas soon as i press the on/off button it goes haywire
-or even before presing the buttton.
i have a similar problem, but i turned out to be that:
one my battery is dead, i cant recharge (charger at home)
i plug an external charger that uses 4 AA batteries...
it works fine, BUT when those 4 start to die, the xda
keep softreseting, somtimes even b4 it fully get booted.
so... check your main battery, maybe its dying on you!
Interesting!!
Took the unit to the shop today--they played around and at one point insisted that it was my sim card that was causing the problem.
Finally could see that the secondary battery had gone to 0% and was not recharging.
So in had to leave it there for extended service. Had to buy another mobile phone to use as a backup--bought the smallest thing i could find as I will use it at times i dont want to lug around the xda.
...you know, that could be true too, there is a small switch by the sim card, that if not pressed firmly, it resets the device.
a common problem if you remove the sim card often.

I-MATE JAMIN Dead

Hi, my device was low on battery and it went blank. Then I recharged it. After the recharge, the power button press started to soft reset the device and it got stuck at the blue windows mobile screen. After a few hard resets the device went totally blank. I took the battery out waited for a couple of hours, then put it on but no change in the situation. Now when I try to hard reset (camera+conn+soft reset) nothing happens. When I put connect it to the charger, nothing happens as well.
please help I am going mad in here.
camelking said:
Hi, my device was low on battery and it went blank. Then I recharged it. After the recharge, the power button press started to soft reset the device and it got stuck at the blue windows mobile screen. After a few hard resets the device went totally blank. I took the battery out waited for a couple of hours, then put it on but no change in the situation. Now when I try to hard reset (camera+conn+soft reset) nothing happens. When I put connect it to the charger, nothing happens as well.
please help I am going mad in here.
Click to expand...
Click to collapse
use original battery and original charger. be patient, just let it connected long time. (this in case your battery was fully discharged and you did not no use your device for long time)
i am read that it stucks with blue windows well it is window mobile so you not have really blue window, but i think you mean the splash screen.
maybe you have downgraded your device somehow? If so, upgrade it again and it will not stuck any more at the "blue window"
many thanks. my i-mate is plugged in for power now.. there are no lights showing up as well.. i am being patient.. lets see how it goes.
It sounds to me that you have a problem with the battery connectors or maybe the battery it self.
I once let my Jamin run down (when I accidentally left MP3's playing over night) and it refused to boot (stuck on the splash screen just like yours).
Fortunately for me, once I connected the power supply, the problem went away.
If you don't see the orange "charging" light check all connections, make sure the battery is installed properly and the contact surfaces on it are clean, make sure the power supply is plugged in tightly and the wall socket has power.
If nothing helps you'll probably need a new battery.
Many Thanks.. I will order a new battery and see if it works. Very unlucky situation to be left Jaminless on the beach during my summer holiday..

Let Andriod die now have a paper wheight

ok here is the problem.
4 nights ago i forgot to plug in my hd2 while android was running and the battery died.
the next morning i went to turn it on and the screen no longer turns on but the phone does boot. the battery doesnt charge, status light doesnt either, end key doesnt work, when i answer calls no noise can be heard or made.
any hope?
Im guessing you cant run bootloader?
Maybe this is a warrenty jobby
If you know someone with another HD2, Try swapping the battery.
chrisizzle492 said:
ok here is the problem.
4 nights ago i forgot to plug in my hd2 while android was running and the battery died.
the next morning i went to turn it on and the screen no longer turns on but the phone does boot. the battery doesnt charge, status light doesnt either, end key doesnt work, when i answer calls no noise can be heard or made.
any hope?
Click to expand...
Click to collapse
does it enter in bootloader mode?
retry flashing wm rom+radio
chrisizzle492 said:
i went to turn it on and the screen no longer turns on but the phone does boot. the battery doesnt charge, status light doesnt either, end key doesnt work, when i answer calls no noise can be heard or made.
Click to expand...
Click to collapse
Hi Chris,
Please eleborate/clarify your OP, because I don't think anyone gets this... At least i don't! You say the screen doesn't turn on but the phone boots?! How do you figure that? Your device is actually on because you can receive/answer calls!?! :S
Sounds like your device has just BSOD (Black Screen of Death) which is discussed quite a lot here. Just press reset button or pull the battery (please tell me you have tried that before...).
If your device IS NOT powered on, please try this:
Does the device vibrate shortly when pressing the End-button? If so you should leave it connected to the charger for longer. If battery has drained too much it takes a while for the device to allow it to power itself up (prevention of overdrainage, which Lithium-batteries don't like very much).
Do you charge through USB, or with the supplied charger? I've had this before trying to charge it with a (different brand) microUSB charger. Turned out most chargers only give out 500mAh, whilst my normal charger (and car-charger) give out 1000mAh i believe. That might help.
You can order a cheap replacement battery from China (i got mine with dockingstation), which is already charged about 60% (for storage purposes).
BTW if your problem is fixed, please add the prefix [FIXED] or [SOLVED] to your topics title.
shufflez said:
Hi Chris,
Please eleborate/clarify your OP, because I don't think anyone gets this... At least i don't! You say the screen doesn't turn on but the phone boots?! How do you figure that? Your device is actually on because you can receive/answer calls!?! :S
Sounds like your device has just BSOD (Black Screen of Death) which is discussed quite a lot here. Just press reset button or pull the battery (please tell me you have tried that before...).
If your device IS NOT powered on, please try this:
Does the device vibrate shortly when pressing the End-button? If so you should leave it connected to the charger for longer. If battery has drained too much it takes a while for the device to allow it to power itself up (prevention of overdrainage, which Lithium-batteries don't like very much).
Do you charge through USB, or with the supplied charger? I've had this before trying to charge it with a (different brand) microUSB charger. Turned out most chargers only give out 500mAh, whilst my normal charger (and car-charger) give out 1000mAh i believe. That might help.
You can order a cheap replacement battery from China (i got mine with dockingstation), which is already charged about 60% (for storage purposes).
BTW if your problem is fixed, please add the prefix [FIXED] or [SOLVED] to your topics title.
Click to expand...
Click to collapse
i have restarted many times.
i use the wall charger.
but why would the phone boot but not turn on the screen or have the mic work?
remove your sd card and the battery. you may have to hit the rest button on the back after you plug the battery back in as well, but as long as you have the sd card out it should come back on. try plugging the phone into a charger and then remove the battery as well sometimes it'll wake it up so to speak. it's just a matter of playing with it. mine did the exact same thing and i freaked out for a little bit.
now if after all this it doesn't work and you've played with it for a while then yeah, best of luck to you =\. but whatever you do in playing with the battery and the charger, keep the sd card out until you can boot into winmo.
EDIT: never mind, i thought the phone wasn't booting. i misunderstood, but i went back and reread the original post. try reflashing your rom if you're in winmo and experiencing those issues. or take the sd card out and reboot.
i would suggest making an backup, as your phone turns on you should be able to estaplish a remote-connection with some (3rd-party-)software and do a hardreset.
if this wont work i would recommend setting it back to factory default (revert hspl if you have one and install stock rom) and send it in for warranty.
seems to be some major problem...
All this steps should be possible without screen turning on (working touchscreen may be needed for backup, but flashing doent need screen input)
if drive-mode is default for your usb connection and holding you from flashing you can do a hardreset and afterwards active sync will be default again and you can establish an active sync connection and flash
check if any of the pins that contact the battery are bended or broken, try to avoid removing the battery when you have to reset your hd2 because the pins are fragile
similar thing happened to me just last night!
I tried the jmz dual boot last night and I was nearly out of battery. I didnt look at any instructions I just installed it and restarted the phone to check out the new toy. it finally got done loading I chose android right away and I was walking towards the bedroom. when I went to see if android had fully booted and plug in the phone I had nothing! It was off. I decided that the battery must have died so I tried to turn it on and all that happened was the tmobile flash screen came up for a second and then it went right off, I got so desperate that I was going to do a hard reset but that wouldnt even work! the boot loader screen would just shut right off. I was suggested to try another battery we had at the house and bang it fired right up I took a wiff of my other battery and I dont know what happened but I think I let the magic smoke out cuz it is fried!
chrisizzle492 said:
ok here is the problem.
4 nights ago i forgot to plug in my hd2 while android was running and the battery died.
the next morning i went to turn it on and the screen no longer turns on but the phone does boot. the battery doesnt charge, status light doesnt either, end key doesnt work, when i answer calls no noise can be heard or made.
any hope?
Click to expand...
Click to collapse
hello friend...i have a problem similar to this. basically when my phone is in android which i use alot if it dies in android, when i reboot it it will turn on for about a second to see my splash screen then turn itself off (the battery is obviously flat). so i plug my charger in and it stays on now but doesnt indicate charging....i boot it into windows mobile and the batt just stays at 0% but its still working. however once i unplug it it will die.....its like the battery is not in the phone. luckily i have two batteries and a dock which charges batteries, so i replaced the battery and everything works fine. once the battery that died in android was fully charged i tried it again and it was fine.................im guesing the moral to this story is dont let your phone die in android mode
I do notice my HD2 runs hotter while in android than while it runs in Windows.
I am not sure if that's an issue to this, which is why I never mentioned about it being hotter. Although my HD2 is noticeable hotter, it never gets to a point that I think I should unplug the USB due to overheating concern...
Just a few inputs from passed experience
I use TMOUS Stock 2.13.531.1 WWE ROM
2.12.50.2_2 radio (not stock)
k going to tmobile today to see if they have any extra batteries i can try.
then ill update
i went to tmobile. and while i was there i noticed the screen was turning on but very dim without backlight (barely noticable). but the rep helping me did not notice and i let it stay that way because tmobile is sending me a new refurbished phone as long as i send the old one (and the rep was totally cool he uses xda also and said they wont check my software and if they do they wont ask for the phone back). he also let me get insurance in case this happens again, instead i will just say its lost. so i basically killed 2 birds with one stone

My Galaxy S5 won't start up... (black screen)

Hi everybody
I have a problem with my Galaxy S5 (no custom rom, official)
I normally used my phone, I locked it. But, after about 10 mins I tried to unlock my phone, but nothing happens
I tried to reboot, nothing happens. I tried take out and put the battery - nothing happens. So I searched on Google and tried some keys combinations, but nothing happens. My phone has about 80% battery. I tried to charge it in the charger, but nothing is happening (black screen, no notiffication light). Also I tried to put off my SIM and SD Card, but nothing happens
Do you have some skills in it? Can you help me?
Few days ago, I faced the same problem..
http://forum.xda-developers.com/showthread.php?t=2853472
Then I'd to take it to the Samsumg store.. And they return it back in 2 days and said me it was a software problem..
I wanted to do a recovery reset, but i can't boot my phone anymore, also the Kies doesn't see anything, so. Did you really think that is a software problem? Because my phone won't vibrate at boot. So maybe it can be a hardware prob :/
EDIT: Phone started blinking red light... (nottiffication), I tried to charge it, but nothing...
Mate as mentioned early, same problem I faced..
It'll be better, if you return it to Samsung customer care..
You seem to be saying that the problem occurred unexpectedly. So presumably this isn't subsequent to a flash error, newly installed app or a trauma (dropping the phone, etc).
First ensure that your battery is charged, plug in the phone to a charger as well and try turning it on. If at all possible, borrow a battery from a friend's S5 or go to a store and borrow a battery for 30 seconds to confirm that the battery isn't the issue.
If the problem persists, then remove the cable and battery. Then put the battery back into the phone and press and continue to hold in this order, the volume down key, then menu key, then power key. Hold all three until the screen powers up (about 5 seconds). If this doesn't work.. the most likely problem is a damaged power key - try pressing hard or "wiggling" it to see if that makes a difference.
If you still can't start the phone, then see if a local cellular repair shop has a "jtag jig" that you can borrow. Or you can buy one on Ebay for a few dollars. When this jig is plugged into the USB socket, the phone should automatically restart.
If all of the above fails (which is unlikely), you would seem to have a hardware problem or unknown origin. Which would be very unusual. If your phone is under warranty, make a claim. Otherwise get an estimate to repair it.
.
If I hold all 4 buttons at the same time and connect the phone to PC, PC recognises the phone for a few seconds. Well, maybe not recognises, I cant see it, but it plays the same sound as if connected flash drive to pc. However, everytime it disconnects within a few seconds...
I´m in the same case, but I was flashing the Galaxy S5 with the four files ROM and the pit file using Odin3.09. All the process ended well, but after rebooting there apeared one Screen sayin something like "Some files at this phone are encripted and there can´t be modified......." so I did a manual reboot and take off USB cable and from this moment the phone don´t do anything but giving a sound when I plug USB to computer cable and I can see new COM --> Qualcomm HS-USB QDLoader 9008, and there repeat a loop.
I´m still looking for a solution, but it gives me that there is time to change phone.
Possible Fix
This thread is old but idk if this was ever solved, so in case anyone else ever has an issue like this. My Gf is still rocking this phone so i've had a little experience with it. The phone wont turn on or charge. I got it to work by sticking a flat head screw driver and prying it fairly hard against the bottom of the battery (the side closest to the charge port) and forcing the battery harder against the metal contacts. While pushing the battery I turn on the phone and it starts right up and continues to run even after letting the pressure off. I've noticed this happens every few times i take the battery out, but this method has never failed for me turning the phone back on. Hope someone finds this helpful.
kimo hands said:
This thread is old but idk if this was ever solved, so in case anyone else ever has an issue like this. My Gf is still rocking this phone so i've had a little experience with it. The phone wont turn on or charge. I got it to work by sticking a flat head screw driver and prying it fairly hard against the bottom of the battery (the side closest to the charge port) and forcing the battery harder against the metal contacts. While pushing the battery I turn on the phone and it starts right up and continues to run even after letting the pressure off. I've noticed this happens every few times i take the battery out, but this method has never failed for me turning the phone back on. Hope someone finds this helpful.
Click to expand...
Click to collapse
weird, youd think that bending the tabs out to force contact with the battery better would do the same trick fwif

[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.

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