Develop Bugs

[Q] firefirefire bootloop problem can you help?

I have a Kindle Fire that I have successfully rooted and using CM7.
I let the battery completely discharge and since then the device has been stuck in what appears to be a boot loop at the fire fire screen (I have a video of the problem but because this is my first post I am not able to post links, you could find it by going to graham dot doel dot org forwardslash kindlefire)
It won't turn on unless a usb cable is plugged in. When the usb cable is plugged in the apparent loop starts.
This is what I have tried:
1. trying to charge the device.
2. trying a hard reboot. Holding the power button for 20 seconds, doesn't make any difference.
3. connecting via adb, the device isn't seen.
4. Making a factory cable and trying to connect via that, but no joy there, the device isn't detected by the computer (windows or linux)
Could anyone make any suggestions about how to unbrick this device, I have searched high and low and have found nothing that helps or works.
Thank you

the repeatent on/off is typical - what happens:
kf tries to start - battery breaks down - kf tries to start - battery ...
the only solution i know is to charge with the wall charger for some hours (over night)
but if you plug it to the wallcharger it turns on
so press and hold the power button till it turns off to allow the kf to charge

Thanks. Pressing the power button seems to have no effect what so ever. Do you have any other suggestions?

i meant to hold the button till it turns off -> ~30sec
that it is off when on the wall charger
don't know an other solution - worked for a lot of others

I have tried this. the power button doesn't respond. plugged in or not.

Hello !
Same problem for me ... I let the battery completely discharge and since then the device has been stuck in what appears to be a boot loop at the fire fire screen... I plugged it (in the wall) pressing and holding the power button till it turns off to allow the kf to charge but there nothing ie no orange/green light... Do you have an idea?

Same problem here...
Here is my thread http://forum.xda-developers.com/showthread.php?p=22685015

Since it is quite obvious to me the device will never work again due to this POS battery, does any one want to buy it for parts? Or can Amazon repair it, even though its rooted with a custom ROM and recovery?

I have found a solution!
The problem was a power problem. I tired a different more powerful charger and It gave me enough power to turn the unit off and let it charge up.
Hope that works for others.

just for information:
the original charger is 1.8A - you should use one with nearly this power
i use a 1A and it's working fine - nevertheless i think that is the minimum
please mark the subject of the topic (edit first post) with [Solved]

b63 said:
just for information:
the original charger is 1.8A - you should use one with nearly this power
i use a 1A and it's working fine - nevertheless i think that is the minimum
please mark the subject of the topic (edit first post) with [Solved]
Click to expand...
Click to collapse
Just wanted to indicate my experience:
1.0A Charger = Boot Loop
1.3A Charger = Booted!
Yay!

have a headache from reading ... and re-reading...
Nestor94 said:
Hello !
Same problem for me ... I let the battery completely discharge and since then the device has been stuck in what appears to be a boot loop at the fire fire screen... I plugged it (in the wall) pressing and holding the power button till it turns off to allow the kf to charge but there nothing ie no orange/green light... Do you have an idea?
Click to expand...
Click to collapse
I have this exact same problem on my stock KF. Powers on with wall charger plugged in (no light green or red), immediately shuts down when unplugged. Been through all of the forums guides KFFB and the linked ones by Kinfauns I purchased a factory cable attempting to make it fast boot on computer, no power at all. Doesn't appear to have any effect
b63 said:
the repeatent on/off is typical - what happens:
kf tries to start - battery breaks down - kf tries to start - battery ...
the only solution i know is to charge with the wall charger for some hours (over night)
but if you plug it to the wallcharger it turns on
so press and hold the power button till it turns off to allow the kf to charge
Click to expand...
Click to collapse
I am at my wits end . Is there some type of battery failure that would account for being on charger for hours and not keeping the charge? or since it does boot up would it still be the software not in fastboot to allow a charge??? I plug in the wall charger, press button until it shuts off, and left it for several hours ( one last time going to try longer than overnight)

Phone will no longer boot... brand new :(

Wondering if you guys could solve my new Nexus issue.
- Working fine this morning.. alarm went off, checked the weather (via Google Now, of course), traffic, etc. Charged overnight with the Samsung cable and wall adaptor.
- When I got to work, I noticed a blank triangle where the mobile signal usually is and "Cannot connect to mobile network" on the home screen with "retry" under it. I hit retry a few times but no joy. So, I powered off......
- It powers off, per usual. I wait the usual 10 seconds or so and I hold in the power button. Nothing. I hold it in longer. Nothing.
- I google for some reset tricks. I hold in the up and down volume at the same time then hold in the power button. Nothing.
- I remove the battery and sim. Plug up the phone to power (even though it was at 99% when I powered down). Do the volume trick. Nothing.
- I plug back in the battery, now connected to the wall, do the volume trick again. Nothing. No flashing lights, no on screen icon telling me it's even plugged in.
The battery doesn't appear to be swollen or anything out of the usual. No electrical storms last night. No blackouts/grayouts according to our microwave.
Any other tips or tricks? I have spoken with Samsung via phone and they said "return it to Google".... Really helpful! :good:

snappjay said:
Wondering if you guys could solve my new Nexus issue.
- Working fine this morning.. alarm went off, checked the weather (via Google Now, of course), traffic, etc. Charged overnight with the Samsung cable and wall adaptor.
- When I got to work, I noticed a blank triangle where the mobile signal usually is and "Cannot connect to mobile network" on the home screen with "retry" under it. I hit retry a few times but no joy. So, I powered off......
- It powers off, per usual. I wait the usual 10 seconds or so and I hold in the power button. Nothing. I hold it in longer. Nothing.
- I google for some reset tricks. I hold in the up and down volume at the same time then hold in the power button. Nothing.
- I remove the battery and sim. Plug up the phone to power (even though it was at 99% when I powered down). Do the volume trick. Nothing.
- I plug back in the battery, now connected to the wall, do the volume trick again. Nothing. No flashing lights, no on screen icon telling me it's even plugged in.
The battery doesn't appear to be swollen or anything out of the usual. No electrical storms last night. No blackouts/grayouts according to our microwave.
Any other tips or tricks? I have spoken with Samsung via phone and they said "return it to Google".... Really helpful! :good:
Click to expand...
Click to collapse
can you enter bootloader? Vol up + vol down + power?
If you can you can try restore a factory image from google

Ozkitar said:
can you enter bootloader? Vol up + vol down + power?
If you can you can try restore a factory image from google
Click to expand...
Click to collapse
Thanks for the tip! The volume up + down + pwr was the first troubleshooting tip I found on Google. No Joy
What really worries me is that, even though it's plugged up, there isn't an icon or light on the device telling me it's hooked up.

When plugging Nexus via USB to PC you can hear the sound if that USB device/thing is connected.. so then should be maybe some ways to fix it with some programs..
does the Odin flash mode work..? when off then press power and then volume down if I remember right..
Try this: http://forum.xda-developers.com/showthread.php?t=1640443

manumanfred said:
When plugging Nexus via USB to PC you can hear the sound if that USB device/thing is connected.. so then should be maybe some ways to fix it with some programs..
does the Odin flash mode work..? when off then press power and then volume down if I remember right..
Try this: http://forum.xda-developers.com/showthread.php?t=1640443
Click to expand...
Click to collapse
I'll give it a shot! Thanks!:fingers-crossed:
Oops, forgot to mention. It does NOT make a ding when plugging up. Tried other USB plugs in the back and front... :-|

Strange?! I would say leave it charging for a couple of hours and then come back and see if it will power back up..

Sounds like your phone has died. Better to take it to corporate Verizon store and get it replaced
Sent from my Galaxy Nexus using xda premium

snappjay said:
I'll give it a shot! Thanks!:fingers-crossed:
Oops, forgot to mention. It does NOT make a ding when plugging up. Tried other USB plugs in the back and front... :-|
Click to expand...
Click to collapse
Okay..
try this:
take battery off and then plug it to PC via USB cable, let it to be like that something 30 seconds and then open CMD in Windows and then put cd ADB platform-tools location to it if you have installed SDK, you need USB driver from AVD manager!...
then type to CMD: adb devices and if it can find your device then put to cmd the adb re-boot or what is the command, maybe it works..
If PC says cannot be installed the USB driver then find from google the OMAP4440 driver and install it and then type ADB devices..
for ZTE Blade this de-bricking was so easy, just needed to pust image folder where is the tpt files and then to boot by pressing power, menu and volume -...
To unbrick Galaxy Nexus is a bit harder but you might be able to fix it like with the OMAP4440 files + driver to flash the boot stuff to it.. there was something thread how to do it (in thegeneral forum,maybe 5-8 threads back..) ..

manumanfred said:
Okay..
try this:
take battery off and then plug it to PC via USB cable, let it to be like that something 30 seconds and then open CMD in Windows and then put cd ADB platform-tools location to it if you have installed SDK, you need USB driver from AVD manager!...
then type to CMD: adb devices and if it can find your device then put to cmd the adb re-boot or what is the command, maybe it works..
If PC says cannot be installed the USB driver then find from google the OMAP4440 driver and install it and then type ADB devices..
for ZTE Blade this de-bricking was so easy, just needed to pust image folder where is the tpt files and then to boot by pressing power, menu and volume -...
To unbrick Galaxy Nexus is a bit harder but you might be able to fix it like with the OMAP4440 files + driver to flash the boot stuff to it.. there was something thread how to do it (in this general forum,maybe 5-8 threads back..) ..
Click to expand...
Click to collapse
He says the phone is brand new and didn't mention it was rooted. I don't think he bricked his phone. It probably just died. He can replace it since its under warranty.
Sent from my Galaxy Nexus using xda premium

huskers15 said:
He says the phone is brand new and didn't mention it was rooted. I don't think he bricked his phone. It probably just died. He can replace it since its under warranty.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
the ROOT is not needed if not editing any system files...
if ADB can find the device then the phone can be fixed via ADB!
also with the OMAP4440 files..
So he doesn't need any root!

Thanks for all the help, guys.
This phone is completely "virgin" with 4.1.1. No root, bootloader, or anything at all. I wanted to get the feel of stock JB before I went rom crazy.
I always figured I'd brick a phone at some point, but I didn't think I would brick it before rooting!
Also, this is the GSM (post-ban) GNex directly from Google Play. I'm on the phone now with Google Support (45 minutes and counting! Yikes!) :silly:
Also, the phone has been plugged in for around an hour now without any life. I had the battery out for 30 minutes before that, each time cleaning the contacts on both battery and SIM.

As Professor Farnsworth would say...
"GOOD NEWS, EVERYONE!"
Not sure why, or how, but leaving the battery out for an hour or so will, apparently, bring a dead phone back to life.
I haven't had a removable battery since 2007 (pre iPhone 2G), so this stuff is new to me :good:
You guys rock. :highfive:

Fullbrick?

I got a Xperia S here from a friend, he says that the screen suddenly turned off when he was using it. But the notification bar was on!
So he gave me the phone, because I want to fix it.
If I plug in the charger, no reaction.
Soft-Reset - No Reaction.
Hard-Reset - No Reaction (No Vibrates)
Trying connect to fastboot mode / flash mode. No Success.
My last chance is to remove the battery for 5 min and then look if the battery will charge or not.
The bootloader is unlocked and there was OpenSEMC beta 2 installed.
Is this a Hardware bricked phone, or a software issue with empty battery?

GoldenRazz said:
I got a Xperia S here from a friend, he says that the screen suddenly turned off when he was using it. But the notification bar was on!
So he gave me the phone, because I want to fix it.
If I plug in the charger, no reaction.
Soft-Reset - No Reaction.
Hard-Reset - No Reaction (No Vibrates)
Trying connect to fastboot mode / flash mode. No Success.
My last chance is to remove the battery for 5 min and then look if the battery will charge or not.
The bootloader is unlocked and there was OpenSEMC beta 2 installed.
Is this a Hardware bricked phone, or a software issue with empty battery?
Click to expand...
Click to collapse
this sounds like a softbrick, there are lots of threads on fixing such issues, i seem to remember 1 problem was switching off auto lighting and bang the screen goes blank, holding the power and vol up/down for about 15 seconds makes a hard reboot 3 vibes, then plug in via usb and restart with flash tool running might work. there are lots of different help threads that will guide you through this. dont give up.

But Hardreset doesn't work. I already tried it.

Read this : http://forum.xda-developers.com/showthread.php?t=1849170

Thank but I read already this thread.
I can't remove the battery right now, so I asked you guys if this issue is a Software issue or Hardware issue.
If I can remove battery I will test everything I can and then I'll report.

GoldenRazz said:
Thank but I read already this thread.
I can't remove the battery right now, so I asked you guys if this issue is a Software issue or Hardware issue.
If I can remove battery I will test everything I can and then I'll report.
Click to expand...
Click to collapse
i think it's hardware issue. cause for it to be software issue it must at least show red led when plugged into the charger.
bring it to service center is a wise choice. but u can try different charger (with bigger amperage output is preferable), and what happen when u plugged it to PC? did the led color shows up?

If I connect to my PC nothing happens.
No Fastboot Mode no Flashmode possible.
I remove the battery the following days, cause I don't have a torx 6 to remove the screws. Must buy one.

Removed Battery and insert it back again. Now trying to charge but no reaction.

If you plug-in a Real charger(Not pc usb), what happen?
Sometimes when the battery is full empty, you have to keep it charges about 15-20 minytes without powering on
Sent from my LT26i using xda app-developers app

Put it in the real Charger, and charged 30 minutes.
But still no reaction. I guess it's a fullbricked Phone now.

[Q] Phone does not turn-on upon "Restart"

Good Day,
Phone:
Asus Zenfone 2 ZE551ML (ASUS_Z00AD) - 1.8GHz, 4GB RAM, 32GB storage. (Not Rooted)
Kernel Version: 3.10.20-x86_64_moor_265182-gb0fff5c
Build Number: LRX21V.WW-ASUS-Z00A-2.13.40.13_20150401_8390_user
Problem:
My brother couldn't update an application in Google Play Store. He tried to restart the phone through Hold Power Button -> Restart but the phone does not turn-on anymore
Methods Tried:
1. Hold the power button around ten seconds. The phone slightly vibrates but still does not turn on.
2. Hold the Volume Up + power button for ten seconds. The phone slightly vibrates but still does not turn on.
3. Charge the phone using provided Asus charger and try to turn the phone on. Still, the phone slightly vibrates but still does not turn on.
4. Tried charging the phone for around 30mins and the phone gets warm. Tried turning the phone on but still, same results.
Please help advise for solutions or possible fixes. Thanks in advance.
Regards,
Ed

Please ensure to use the bundled AC power adapter and micro-USB cable to charge your device. This model may not come equipped with 18w Boostmaster adapter and will require longer charge. Please see http://www.asus.com/us/support/Sear...5-480F-AADA-FE49EDD81C01/?keyword=boostmaster
ZenFone Quick Service - http://www.asus.com/us/support/self-service/11/
FAQ - http://www.asus.com/us/Phones/ZenFone_2_ZE551ML/HelpDesk_knowledge/
If still unable to power on it will require RMA service.
Sincerely,
ASUS_USA

Asus_USA said:
Please ensure to use the bundled AC power adapter and micro-USB cable to charge your device. This model may not come equipped with 18w Boostmaster adapter and will require longer charge.
Click to expand...
Click to collapse
Thanks for the quick response. Yes, the bundled AC power adapter and micro-USB cable is used for charging. The AC power adapter output is 5.2V and 1.35A. Also tried to charge the phone for a few hours but still, the same problem is encountered.

Does the LED indicator light up when charging? Have you tried charging while being connected to a PC? (this will take longer to charge)
Sincerely,
ASUS_USA

Asus_USA said:
Does the LED indicator light up when charging? Have you tried charging while being connected to a PC? (this will take longer to charge)
Sincerely,
ASUS_USA
Click to expand...
Click to collapse
Sorry for the late reply, sir. Many thanks for the prompt responses. As advised by my brother, he tried charging it again using the AC charger for more than two hours and turned the phone on. Good news that the phone booted properly.
It seems that the problem is really about a drained battery. This issue can now be closed.
Thank you very much.
Regards,
Ed Oswald Go

Hi Sir, I am facing the same problem right now. Please help me with this. I am getting Error symbol with dead andriod symbol. Even it is not showing the LED indicator while charging.

santhosh_kv said:
Hi Sir, I am facing the same problem right now. Please help me with this. I am getting Error symbol with dead andriod symbol. Even it is not showing the LED indicator while charging.
Click to expand...
Click to collapse
That's the "welcome message" before going to recovery mode.. Long press power button to turn off... Then you may turning it on again or connect the charger...
Sent from my ASUS_Z00AD using Tapatalk

This is happening to my zenphoe 2 as well. Is this a problem when the battery completly drained?. I am using ac adapter and led indicator is also not glowing to show if its charging. The ac adapter is good as its charing other phone.. ? Kindly help. If the bttery is completly drained then how long will it take for the phone to start?

chepoz said:
That's the "welcome message" before going to recovery mode.. Long press power button to turn off... Then you may turning it on again or connect the charger...
Sent from my ASUS_Z00AD using Tapatalk
Click to expand...
Click to collapse
Hi Sir, I have tried it. But it is still not going into recovery mode. And when to connecting to charger the dead android symbol is getting popped up and the mobile is heating heated without switching on.
:crying:

Hi Sir, yur reply is very much necessary as i am stuck with the dead symbol even after battery getting drained and recharged as well.

Hi Sir santhosh_kv,
My brother's phone couldn't be switched on before and we just sent the phone to the service center. After a month or two, they replaced the unit with a new one. I think my brother got a lemon unit before.
Thank you.
Sent from my ASUS_Z00AD using Tapatalk

santhosh_kv said:
Hi Sir, yur reply is very much necessary as i am stuck with the dead symbol even after battery getting drained and recharged as well.
Click to expand...
Click to collapse
Maybe there's something wrong with the system. Try flash stock rom using adb sideload. While in that dead android symbol, press power+vol up to go to recovery.
Sent from my ASUS_Z00AD using Tapatalk

chepoz said:
Maybe there's something wrong with the system. Try flash stock rom using adb sideload. While in that dead android symbol, press power+vol up to go to recovery.
Sent from my ASUS_Z00AD using Tapatalk
Click to expand...
Click to collapse
Hi Sir, when i have connected it to my PC, it is showing me Android bootloader interface. Can you please tell me the procedure on how to recover my mobile back.

santhosh_kv said:
Hi Sir, when i have connected it to my PC, it is showing me Android bootloader interface. Can you please tell me the procedure on how to recover my mobile back.
Click to expand...
Click to collapse
Hi Sir, I have tried the procedure u said. But nothing seems to be working. Please help me with this. I have installed the ABD divers and updated it. But its not working after re-switching on.

After using the phone until the battery was completely drained, I tried to charge it. Initially the indicator showed orange (suggesting it was charging), but after attempting to turn the phone on, it vibrated once or twice and the indicator stopped glowing. The phone has since failed to turn on at all, and connecting the charger no longer shows any sign of charging (ie. no orange indicator or on-screen battery icon).
Has anyone eno****ered this issue, or know of a way to fix it? Let me know if I can provide any more information, and thanks

I have recently bought asus zenfone 2 ze550ml in september,when i connected my phone to laptop it suddenly got turned off and it is not at all restarting i tried many ways like i charged for an hour and tried to on it but i am not successful its not at all responding the light on the top is not even blinking.....and no vibration too
what to do...?

Hi I have the same problem. I have also tried to charge it for 2 hours. The phone vibrates when pressing the power button or the power and up arrow button simultaneously or when the charger is plugged in but does not show anything. The screen is black. The led indicator also does not show any light.

Hi Im having the same problem, I was charging my phone but it is not charging when i notice it was a bit warm what I did was I restartedmy phone and it did not turn on anymore. I tried the reboot process of holding the power button and volume but it wont start it just vibrates, have done the charging it for almost an hour but it still wont turn on. what to do about this, Asus Zenfone

Stock Robin won't turn on, what now?

Cross-posting this from r/NextbitRobin
So Tuesday night before bed I went to check my phone (which had been on the charger for the last couple hours and so was at >95%) and noticed the volume button was not responding. I figured something buggy was going on, sometimes I need to reboot my phone every couple of days to get it to work properly (especially if it had run down into low power mode before recharging), so after unplugging it from the charger, I held down the power button, selected reboot, and clicked okay. The phone then proceeded to shut down, but not start back up.
When I tried to start it up again by holding the power button, I got no response initially. Then I was able to get it to buzz/vibrate, but the screen never came on.
I tried holding down the Vol- button and the power button together for 20 seconds to force a reset, and it vibrates a couple of times, but nothing happens.
If I plug it into a charger, I don't see any LEDs illuminate, and it just vibrates approximately every 3 seconds (not continuously, it seems to have some semi-random pattern). If I unplug it, the vibrating stops, but I still can't get it to turn on. It does not seem to make a difference if I am using a wall charger or trying to charge it off my laptop.
I have not rooted the phone or installed any custom ROMS, and have had it since I bought it on Amazon in June of 2017.
Any ideas what might be the issue? Any tips for reviving my phone?
This doesn't seem to match anything I have been able to find with some basic google searching.
Edited to add that I also tried removing the sim card and starting it up without one, but that did not appear to make a difference.
Update: I left it plugged into a wall charger for about 18 hrs and when I came back there was no change in behavior.

This many sound repetitive but lets first get the obvious out of the way so that we are sure you tried the most basic things for sure.
Is there an issue with the cable not able to charge the device? Can you try changing the cable?
Power + volume down for 30 secs / 1 minute / few minutes. This usually helps, sometimes more than 30 seconds for some reason. Try doing it while plugged in.
When you connect to the laptop what happens? Does it power on for a minute or vibrate?
Do you have adb installed on your computer? does you device get detected on your laptop?

/root said:
This many sound repetitive but lets first get the obvious out of the way so that we are sure you tried the most basic things for sure.
Is there an issue with the cable not able to charge the device? Can you try changing the cable?
Power + volume down for 30 secs / 1 minute / few minutes. This usually helps, sometimes more than 30 seconds for some reason. Try doing it while plugged in.
When you connect to the laptop what happens? Does it power on for a minute or vibrate?
Do you have adb installed on your computer? does you device get detected on your laptop?
Click to expand...
Click to collapse
Tried charging it with both the OEM cable as well as an amazon basics USB-c cable (both of which had been used to charge the phone successfully in the 24 hrs before it went wonky), no noticeable difference in behavior.
Held the power + volume down buttons for 180 seconds, did not boot. Repeated this with it plugged in (wall charger) and it still did not boot.
When I connect it to my laptop, I get the same behavior of vibrating as when plugged into a wall charger, but it does not boot or power on, nor does the laptop detect the phone in any fashion. I do not have adb installed on my laptop.
Anything else I can try, or is the phone a write-off at this point?

First step to solving any device issue is to somehow boot it and get in any mode possible. Since you can't do that I can't think of any other way to get it working.

I'm having the same issue, phone is not giving me any signs of life...frustrated at the moment

It's a total long shot, but try carefully cleaning out your charge port with a needle or a small pin and a little bit of alcohol. I pulled quite a bit of pocket lint out of mine and it works fine now. It didn't look like it was that dirty, but I pulled out a large ball bearing sized amount.
Other than that the only other thing I can think of is that your battery might be shot. It might have been taking enough of a charge to try and turn on, but not enough to do so.