[Q] stuck at "dual core" but now can't even fastboot?! - Motorola Droid Bionic

I bought one of the refurb'd bionic's a couple months ago. I've rooted and masked the wifi tether, but nothing else, no custom ROMs or anything. phone's been working great for the past seveal weeks since those changes were made, several reboots, etc. no problems until last weekend.
I randomly found my phone stuck on the "dual core" screen one morning. it must have rebooted overnight and been that way for several hours as it was quite hot. I did a battery pull and tried to turn it back on, got nothing. plug it in to the charger, nothing, no leds, nothing. several battery pulls later, still nothing. try to enter fastboot/bootloader by pressing power + volume up/done, nothing. plug it into the computer, nothing.
I'm sorta fearing its been hard bricked (though I have no idea why... i wasn't loading ROMs), except, the other day, after leaving the battery out all night, I was able to get it to turn on, it booted up to the home screen, but before it was usable, rebooted and was stuck on "dual core" again. messing with it some more, I eventually got to the bootloader screen. I wish I had siezed that moment, but i didn't. Messed with it some more yesterday, saw the 'dual core' screen again, but couldn't get it into fastboot. its very hit or miss and I can't do it consistantly, but on rare occasion, it does seem to want to come back to life.
any advice on what happened? where to go from here? and if it can get it back into fastboot? I'm hoping i can and rsdlite will recognize it and I'll try loading 902 fxz back on it, but sure could use some advice to save this phone... no insurance and it was a refurb thats been rooted, I don't think verizon will be too much help.
THanks
-Rob

Try this
Little known hidden key (actually button) sequence: press and hold both volume up & down then hold the power button ten seconds (five should work, but ten always gets it). You should boot into fastboot mode, then flash 902 using a USB cable. You do NOT need to delete data! Check the batch file and REM out or remove any line that says it will. Worst case, Motofail after that will give you access to your latest CWM backup, assuming you have one, just restore that once you have root.

What he said and also you may need to charge your battery.
Sent from my DROID BIONIC using Tapatalk 2

It could just be a dying phone, I came across an Atrix basically in the same situation. The radio in it had died, so the only way to boot the phone was to skip booting the radio, but if you hit the phone application it would crash the phone.

Related

[Q] Strange Reboot Loop, searched forum Not Addressed

Hello All
I did search the forum and still not answer for the stranger reboot loop.
I got a phone call, and answered it. The reception was crappy and hear no voice. I then looked at the phone to see if call had dropped and it was frozed on the incoming call screen. I then pulled the battery and pressed the power button to turn on the phone and It would not power on. After multiple battery pulls and many many power button presses, still nothing. It was like it was out of battery. It was stitting on the home charger before i left the house. Prior to this the phone worked fine. Over the past week or two I had to do a battery pull may be 3 times.
I got to my car and plugged it into the charger and the orange charge led came on, on the front of the device. I then pressed the power button and it vibrate once as normal and then went to the multi-colored nexus "X." he screen went black and then vibrated once again and and was back at the mulit-colored "X." Then the loop starts.
In between the restarts I try to get it to boot into the bootloader by using the "vol down and power" and the "trackball and power button" and the white screen for the boot loader flashed for a milisecond the goes to black. As long as I hold the "vol down" button the while bootloeader or recovery screen flashes every 4-5 sec for a milisecond. As soon as I let go of one of those button, it automatically goes to the full reboot loop.
THis all happens when it is plugged into a power source. As soon as i unplug it, it goes back to the power button not responding. Again it acts as if it has no battery power. But it is in the 90%.
So i am unable to do any other step as in reflashing, and or doing a recovery.
ANY IDEAS any one.
I was running Cyanogen RC3. the latest rom with amon RA 1 7 1, korean radio 5.0.8
It was running perfectly up till today. when it went into its loop.
ANY HELP WOULD BE AWESOME
THanks in advance
DD
Plug it in to the USB, adb reboot recovery, reflash rom. Or even wipe and reflash if needed.
Sounds like it could be hardware the way you have to hold the keys down and you said it wasn't responding to the power button press.
ok thanks, ill give it a try.
here is my only issue. I am not using my original computer Mac. I just sent it out to apple for repair. So i am using my companies computer. I need to set up the AndroidSDK to be able to talk to the nexus. Since the phone will not turn on i can not load the drivers. and ive tried every way and it has not installed and i cant check because it wont stay on. it just goes to the loop. and it wont turn on if its not plugged to a power source.
Any ideas or suggestion.
SOrry I am an noob, so could you please be specific in your instructions.
I as of right now have insalled the Android SDK and i am unable to see the serial number (working on an old dell, running XP sp3) because it wont turn on.
It cant manually install the drivers because I cant turn the phone on to specify the drivers.
and
I using USBDeview, the phone also has to be on to erase all HTC previously installed drivers. i think. but there were none in the usb log...i think becuase they didnt install...agains because it would not power on...:-(
any ideas...please
DD
Also
Sorry excuse me if its a sort of a duhhh question...
even if i am able to load the device bridge, if the phone will not boot can i still flash another rom, or do a recovery. The phone is not getting past the Multi-colored "X" ???
DD
It should still read the commands when it's trying to boot. You don't need to turn the phone on at all to be able to install the ADB drivers, they are independent of each other.
As strange as it started, is a strange as it went.
This morning open the phone to pull the sd and the sim to put it in a throw down phone. I replaced the battery and cover and just hit the power button. The phone does a full boot and it appears to be working properly. the sd card and sim are fine. I the odd thing is i did this multiple times yesterday and last night. I pulled both sim and sd, replaced the battery and tried to boot with the same issues as named above with nothing different.
I left the phone on charge last night and it was charging for close to 8 hours and it was still showing the orange charging light.
So after it booted this morning, and i checked everything. It showed the same amount of charge as yesterday, right before it froze, which was 75%. So that is another strange occurance.
I plan on reflashing the rom and seeing how things go.
I thank you for your assistance and time.
appericate you helping out a clueless noob.
DD

[Q] HELP!! Stuck in LG boot logo!!!

Please help! My rooted LG Revolution won't turn on. When I unplugged it from the charger this morning I powered it off. when I went to power it back up all it does is flash the LG logo and do a little vibrate like it is force closing! I have 2 days left before I can no longer return it. I did several battery pulls also with no luck. thanks in advance!
tchabalie said:
Please help! My rooted LG Revolution won't turn on. When I unplugged it from the charger this morning I powered it off. when I went to power it back up all it does is flash the LG logo and do a little vibrate like it is force closing! I have 2 days left before I can no longer return it. I did several battery pulls also with no luck. thanks in advance!
Click to expand...
Click to collapse
Did you install Clockwork on it, or just rooted?
If you only rooted it, try performing a factory reset.
This can be accomplished by holding volume down and power until you see the screen change to "Clear data and factory reset?".
Press power to confirm.
You will lose your data, but your phone should return to normal.
Just rooted, no clockwork. I will give it a try! thanks!
Tried your suggestion...just keeps flashing and vibrating. Any other suggestions?
Did you ever see the factory reset screen?
No I didn't. just the LG logo flashing and the force close vibrate. the only way I can get it to stop is to take the battery out and put it back in. Then when I hold the voume down and the power button it just starts doing it all over again.
tchabalie said:
No I didn't. just the LG logo flashing and the force close vibrate. the only way I can get it to stop is to take the battery out and put it back in. Then when I hold the voume down and the power button it just starts doing it all over again.
Click to expand...
Click to collapse
make sure you are holding it long enough. You have to continue to hold the power and vol button for sometime before you get the recovery screen.
As rooting will generally not brick a phone (it is the recovery mod that generally bricks), if you cannot get it, take it back tell them you woke up and it was on the charger like this. They should exchange it with out issue. (Do not mention that you rooted the phone)
It sounds to me like your phone is defective, it happens.
Another option is here: http://forum.xda-developers.com/showthread.php?t=1120062 .
I can walk you through it on IRC tonight if you're on around 12PM Pacific Time...
If not, there are guides for using LGNPST on the internet.
Good luck!
Thanks! Held the buttons down for a full 3 minutes and nothing. Is that long enough? Read through the other info you posted and boy does that look scary! LOL! I will try tomorrow when I have more time. Or maybe I should just return it since I have only had it for 12 days
try pulling the battery and holding the power key for about 30 seconds. my original droid use to do this from time to time and it always worked for me.
Thanks. Tried but it did not work. Ended up just returning it and getting a new one. Now I can start over! LOL Just came from the Samsung Fascinate and was pretty proficient in flashing roms and kernels. But I have to admit that I am a little confused with the process on the Revolution.
Not sure boot problem is related to root
I've had repeated problems with not being able to boot my Revolution. This has happened consistently no matter which ROM I've used. I've factory reset and tried Decrap and Revolt both. I can reboot my phone fine, but if I ever turn it off overnight, I go back to a blank screen in the morning.
It seems a number of non-root users have this problem.
https://www.youtube.com/watch?v=IOGM__SQB6Y
I'm not sure if having a low battery contributes to the problem, but I do know that Clockwork works better with a full battery.
This morning is the first time, however, that I have this exact problem. For a few times this morning I was able to get to clockwork and restore different ROMs, but always to the same blank loop during boot. Now not even able to get to Clockwork or Factory Reset. I'm headed in to Verizon to try for a replacement. I'll let you know if they make any noises about rooting.
Getting back into Clockwork
Update: I ended up getting back to Clockwork. Can't say exactly what did it, but what seemed to work was:
1. Charging the battery fully overnight
2. Removing the battery and holding the power button down for 30 seconds
3. Leaving the battery out for some time, about an hour I guess
4. With the battery still removed, plugging the phone in and allowing the bottom lights to flash about 10 times
5. Replacing the battery, holding down the power button and volume down.
After a full day of not being able to get into Clockwork, I was able to get in and do a factory reset.
Returning Rooted Phone to Verizon
FYI, I returned a rooted, stuck in boot loop phone to Verizon yesterday. In the store they arranged the return and did not ask about or look for rooting in any way.
They did try a factory reset, which was not working in any case, so no signs of Clockwork.
Same problem, different results.
I have a ROOTED LG Revo, but the first one I owned had the same problem. That one was NOT rooted, so must just be an LG thing. First phone had stock android 2.2, and this one has STOCK 2.3.4 ( after OTA ), and is just rooted with simple memory management and font tools. I WAS able to Hard Factory Reset, but the same problem still existed after reset. ADB cannot even recognize the handset. Boots with animation, stops halfway through, reboots into blank screen and freezes. RETARDED!!! This will be the second handset being sent back in as little as a month. I bought the REVO the DAY it came out, and loved it. But now I don't. No love left. I'm getting the Droid Razr!
timus5 said:
I have a ROOTED LG Revo, but the first one I owned had the same problem. That one was NOT rooted, so must just be an LG thing. First phone had stock android 2.2, and this one has STOCK 2.3.4 ( after OTA ), and is just rooted with simple memory management and font tools. I WAS able to Hard Factory Reset, but the same problem still existed after reset. ADB cannot even recognize the handset. Boots with animation, stops halfway through, reboots into blank screen and freezes. RETARDED!!! This will be the second handset being sent back in as little as a month. I bought the REVO the DAY it came out, and loved it. But now I don't. No love left. I'm getting the Droid Razr!
Click to expand...
Click to collapse
Please don't necro threads....

Possibly bricked phone

So I tried to safestrap cm10.1 onto my Droid 4. But, I was much more familiar with a previous version, not with the touch interface and stuff. I did what I thought I had to do: Create a partition, install the zip to it, reboot.
But, to my horror, when I rebooted, I was greeted with a black screen (backlit). I couldn't turn off the phone by holding down the power button either. I had this problem once with my Droid 3, and I 'solved' it by just taking the battery out. But I know things are much more 'locked-down' back there with the Droid 4, so I didn't want to do that.
After a little while, the thing just ran out of batteries. I was hoping to charge it up again. When I plugged it into a wall, I got the little battery icon, which I thought was definitely good news. But now I can't even turn it on, or get my computer to charge it!
UPDATE: I'm going to try using fastboot
Have you tried booting into fastboot and then flashing the stock firmware to the phone?
Also to reboot the phone when it freezes, you can hold the power button and volume down together for about 10 seconds.

Pure 5.1: Boots, has moto display, but black screen when I unlock

So currently I can boot my phone and it displays the boot screen fine. Once its done loading though I just have black screen. Moto display still works and shows new notifications but if I try to unlock the phone its still just the black screen. I can hold down the power button and the power menu shows up fine. I tried clearing the cache but that didn't help. Before I do a factory reset I thought I might see if any one here had some ideas on solutions.
I have the latest 5.1 OTA update. My phone us unlocked, but not rooted. I tried to hook it up to my computer to see if I could at least grab my files off of it, but while it shows up on my computer I can't access any actual files or directories.
I've tried searching around, but I can't find anyone else with a similar issue. Last night my phone battery ran down to zero (and rather quickly compared to normal usage). I may have ****ed it up by trying to get it to boot and be usable while charging but with the battery only at 1% (I guess with the standard charger an in-use Moto X uses power faster than it can take it from the charger). I tried letting it charge for a few minutes and then letting it boot, but after a couple of minutes of use it would shut down again. I finally gave up and let it charge. I didn't really pay attention to its status, but in the middle of the night when I woke up I booted it before falling back to sleep. Not sure there's a connection to my issue and this or not.
Any ideas on what the cause might be or what I can try to do to remedy the issue without data loss?
Edit: I ended up just doing a factory reset and that worked. Admin can feel free to delete this thread if they want.
This sounds similar to the issue here:
http://forum.xda-developers.com/mot...-screen-to-recover-data-t3168103#post62117413
http://forum.xda-developers.com/moto-x-2014/help/black-screen-boot-t3161110
https://www.reddit.com/r/MotoX/comments/3cf4gr/51_black_screen_after_turning_on/
https://www.reddit.com/r/MotoX/comments/3aqr95/moto_x_2nd_gen_black_screen_after_update/
https://www.reddit.com/r/MotoX/comments/383ej6/black_screen_on_startup/
This is a bug that needs to be reported to Motorola.
I am that guy from the second post, and I wasn't able to recover the phone. Connecting to PC did not do anything. I would like to ask: is it booting with the new boot animation? Or old one? Because mine showed old animation long after the update was sent out, so I'm thinking the update may have tried to apply and failed, thus breaking the phone. Should all efforts fail, your only bet is to boot into recovery (power + volume up when off, volume down, volume up in the option menu (to select recovery), then hold power when Android robot appears, and while holding it down, press the vol up button once to make the list of recovery options appear. Scroll down to wipe data/factory reset, press power to select, then find Yes to confirm. Good luck!
so this just happened
i came back from a trip and took a whoooole lot of photos. when i came back my battery went to zero and device switched off. i charged the phone to 10-20% and switched it on and all i see is blank screen only moto display is working and power off option is showing itself when i hold the power button which is the same problem as yours
havent done any factory reset yet. is there any way to retreive the photos since i dont want to lose them. there are around 600 and all of them are of the trip.
im on 5.1
there are other people too who faced the same problem and all of them are on 5.1 but there is no solution
link :-
https://www.reddit.com/r/MotoX/comme..._after_update/
Mine did this yesterday, although I'm not entirely certain that the battery hit zero percent. The best I could tell from looking through the logs in recovery was that something was trying to update and failed. I suspect that it was a push from Motorola that hosed it. The only way to fix it is to do a factory reset. Once I did that and restored all my apps the battery was draining at a rate of 40% per hour or so. I found that the package access helper was the culprit and rebooted the phone. Post reboot, I immediately noticed that the boot animation and Moto logo had changed from what they had been on 5.0/5.1 (prior to yesterday). I also noticed that some of the widgets I hadn't reconfigured after the reset were now back. Weird indeed.
Anyway, I have to agree with the others that this is a very bad bug, that needs to be fixed. I am cautiously optimistic that the factory reset has cured it but we'll see. Based on my experience with this phone so far and the sale of Moto to Lenovo, this will be my last Moto phone.
I am having the exact same issue. Has anybody had a luck resolving it short of a factory reset?
My phone battery died last night. I plugged my phone in, let it get about 15% charge, then tried to turn it back on. The phone boots like normal, but after the boot animation goes away, the screen is black. Active notifications still seem to work, and I can hold the power button to get the Power Down option. I can boot into the bootloader & access recovery just fine. However, my phone is fully stock (no root, no bootloader unlock, no anything). I can't seem to access ADB when the phone is powered normally (ie, when I'm at this mysterious black screen), but it's possible that USB debugging isn't even enabled.
So far, I've found a bunch people who've said a full factory reset will fix the problem, but I'm looking for another solution, or at least a way to grab my data before I reset. Since my bootloader's still locked, I can't seem to use fastboot boot to boot into TWRP, and I can't find any other way to access my data to copy it off the phone. I've tried wiping the cache using the stock recovery to no avail. Any suggestions?

H811 won't boot after multiple battery pulls... HELP!

So I can't boot my phone. Previously stable h811, unlocked bootloader running latest 20i Extreme 3.3 MM with G4 Tweaksbox. I have a Qi/NFC sticker on the back, but which has worked flawlessly and was not in use when the phone died. Here's what happened and what I have attempted.
Problem began when phone simply went black. The only thing running was Maps, which had a route displayed but was not in navigation mode. The screen went dark like normal, and when I went to wake the phone, nothing happened. I was in the car and tried plugging in the car charger and did not get a charge light. Pulled the battery and was unable to get a response. The phone and battery were quite warm.
When I got home, I tried a different battery, and the screen turned on to the LG initial boot screen, but nothing else happened.
After many battery pulls and attempts to boot into recovery, I tried it with the phone plugged into the computer. Finally, it showed the charging screen and light, and after several more attempts- pulling the battery and inserting it, then powering on, it appeared to be booting, (boot animation started, but then looped and froze on the initial boot screen (with bootloader state: bootloader unlocked in the upper corner). After another round of attempt/battery pull, it booted all the way up, but at that point I had my sim pulled. Pulled the battery and tried to restart and it froze on the initial boot screen again. Haven't been able to get into recovery at all, can't get into download, can't boot past the initial LG screen. Sometimes it loops, sometimes it just hangs. Nothing I do pressing combos of buttons, plugged into computer or unplugged, seems to change anything. The very farthest I've gotten is the breathe blue light before the boot animation, but then it looped. Now it's boot looping plugged into the computer.
Any ideas? I'm at a total loss.
bdportil said:
So I can't boot my phone. Previously stable h811, unlocked bootloader running latest 20i Extreme 3.3 MM with G4 Tweaksbox. I have a Qi/NFC sticker on the back, but which has worked flawlessly and was not in use when the phone died. Here's what happened and what I have attempted.
Problem began when phone simply went black. The only thing running was Maps, which had a route displayed but was not in navigation mode. The screen went dark like normal, and when I went to wake the phone, nothing happened. I was in the car and tried plugging in the car charger and did not get a charge light. Pulled the battery and was unable to get a response. The phone and battery were quite warm.
When I got home, I tried a different battery, and the screen turned on to the LG initial boot screen, but nothing else happened.
After many battery pulls and attempts to boot into recovery, I tried it with the phone plugged into the computer. Finally, it showed the charging screen and light, and after several more attempts- pulling the battery and inserting it, then powering on, it appeared to be booting, (boot animation started, but then looped and froze on the initial boot screen (with bootloader state: bootloader unlocked in the upper corner). After another round of attempt/battery pull, it booted all the way up, but at that point I had my sim pulled. Pulled the battery and tried to restart and it froze on the initial boot screen again. Haven't been able to get into recovery at all, can't get into download, can't boot past the initial LG screen. Sometimes it loops, sometimes it just hangs. Nothing I do pressing combos of buttons, plugged into computer or unplugged, seems to change anything. The very farthest I've gotten is the breathe blue light before the boot animation, but then it looped. Now it's boot looping plugged into the computer.
Any ideas? I'm at a total loss.
Click to expand...
Click to collapse
Im bricked myself from another issue but i think there is a black screen of death issue with some of the g4s
Try to boot download mode and re flash stock kdz with Lg up tool
You will loose all data though.
Good luck on help here noones helped me at all .
The g4 is just not a good device or user friendly
Sent from my LGMS631 using XDA Free mobile app
Black screen of death here too
Yesterday, I was using Chrome, site loading, screen just went black. I had about 1/2 battery at the time. I figured maybe the battery was just reporting wrong. When I got home, swapped batteries, same issue. I've been able to get into recovery and attempt a factory reset a couple of times (after many frustrating attempts.) The phone seems to only be able to be powered on for about 30 seconds before it goes black again. I'm going to attempt to fix with download mode now. If anyone else has solved a similar issue, any tips would be appreciated.
Hardware appears to be at fault!
Check this out, people!
http://www.androidauthority.com/lg-admits-g4-bootloop-problem-hardware-fault-669603/
Spread the word. Sounds like this is our problem. Apparently affecting mostly models with serial numbers starting 505xxxxx... which is what mine is. Called LG and they issued an RA# and shipping label to send it to them for service. I'm a little concerned since I didn't buy mine through a carrier, but this seems more like something of a soft recall than strictly a warranty issue, so I'm hoping they fix it no questions asked. I'll keep you guys posted on the progress.
Same thing happened to me today. My phone randomly shut off and it won't boot. Its stuck at the Android logo. I wasn't messing around with it. Just normal use (Snapchat, youtube). I tried booting into recovery but it just goes back to the android screen LG logo and keeps looping. I at least want to wipe the phone before I send it (personal info).
Same here. Mine has serial number starting 505, was purchased back at end of 5/2015 with not problems until this. I filled out the warranty repair form on LGs website and they sent me an RMA with label to get it fixed. I sent it in, they sent it back, and the only thing I see is on one sheet they printed out and included in the package said 'replaced board'. However, when I started up the phone it looked like new initialization with xx of yy apps initializing and then it began bootlooping with the LG splash screen. So frustrating!
So, this time I contacted t-mobile via their online chat, and did a warranty exchange through them. They will send me a replacement LG G4 next day ups air and I will send them the defective one for them to claim warranty themselves. We'll see where this goes. I might just take the replacement unit and do a tmobile jump exchange to another device. I wanted to wait for the new line of HTC nexus phones that are rumored for this year (and was loving the LG 4 until it died), but I might need to just jump twice this year and go for something like the new Samsung S7 of new LG G5 now and then again switch to HTC nexus once that comes out.
Sent mine to LG, and they fixed under warranty with no questions asked. Got it back within a week. All good now.

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