Develop Bugs

[Q] Phone won't turn on! Vibrates and Green LED only

morning guys/gals,
last night i put my phone to charge, woke up this morning and turned on the screen and it said "no sim card detected, reboot device". Now when I rebooted the device all I get is 5 vibrates and the green led light stays on. Screen stays blank!!. I tried battery pull several times, tried vol-down + power but all I get is the vibration with the screen off and the led on.
When I hook my phone to the laptop I can't access it via fastboot/adb, it shows up as "Qualcomm CDMA Technologies MSM" with a yellow exclamation mark in the device manager. I tried forcing different drivers on it (e.g. adb composite, bootloader) but none let me access the device via cmd.
Now I got clockwork, running latest android revolution 2.0.8, device is radio-soff and eng-soff.
What am I to do now? Is there possibly a hardware fault? If I cant get to access to the device to restore it to stock, I'm going to struggle to get the device replaced, isnt it?
any help is very much appreciated!!!

What ROM were you running on it Prior to this happening?
was there any apps running in the background?
the Vol - + Power should get you into bootloader, if you cant get into bootloader I would be tempted to say fooked, and take it back to the shop as they wont be able to boot it either,, but thats the defeatist attitude...

lefty83 said:
morning guys/gals,
last night i put my phone to charge, woke up this morning and turned on the screen and it said "no sim card detected, reboot device". Now when I rebooted the device all I get is 5 vibrates and the green led light stays on. Screen stays blank!!. I tried battery pull several times, tried vol-down + power but all I get is the vibration with the screen off and the led on.
When I hook my phone to the laptop I can't access it via fastboot/adb, it shows up as "Qualcomm CDMA Technologies MSM" with a yellow exclamation mark in the device manager. I tried forcing different drivers on it (e.g. adb composite, bootloader) but none let me access the device via cmd.
Now I got clockwork, running latest android revolution 2.0.8, device is radio-soff and eng-soff.
What am I to do now? Is there possibly a hardware fault? If I cant get to access to the device to restore it to stock, I'm going to struggle to get the device replaced, isnt it?
any help is very much appreciated!!!
Click to expand...
Click to collapse
it sounds like a h/w fault, i had a simlar problem on my classic desire, turned out it was the 3rd party battery i bought that was at fault, yours sounds diffrent though hope you sort it out

darkenedhammer said:
What ROM were you running on it Prior to this happening?
was there any apps running in the background?
the Vol - + Power should get you into bootloader, if you cant get into bootloader I would be tempted to say fooked, and take it back to the shop as they wont be able to boot it either,, but thats the defeatist attitude...
Click to expand...
Click to collapse
ok very strange, I was playing i around with the phone, now if I pull the battery and connect it to the usb cable the light went red instead of green and it automatically booted in clockworkmod (thanks to the "bug"). vol down + power didnt get me there so once I was in clockwork I thought let me wipe battery stats (eventho I wiped them when rom was freshly installed). I thought the device is unplugged but the green light stays on (after full charge), maybe battery issue. Now after wiping battery stats I'm able to boot the device again.
Thats weird but hey atleast my device is back on track. Either faulty battery or some software bug, either way if anyone experiences a similar issues (phone wont boot, just vibrates 5 times and green led), just pull battery, connect phone to usb cable on your laptop or wallcharge and clockwork should boot up, wipe battery stats and u should be fine

You gotta love that ClockWorkMod recovery image

Hi
I had the same issue yesterday. After one hour of stress(I have DHD for 4 days), I finally find out solution which worked for me:
1.) pull out the battery from phone for at least 10 minutes.
2.) connect phone to the charger.
3.) pull battery to the phone and wait
4.) after orange light recovery should boot up.
5.) wipe battery stat.
6.) enjoy your phone again.
Hope this will help to somebody .

May I know why such incident occured?

thermoska said:
Hi
I had the same issue yesterday. After one hour of stress(I have DHD for 4 days), I finally find out solution which worked for me:
1.) pull out the battery from phone for at least 10 minutes.
2.) connect phone to the charger.
3.) pull battery to the phone and wait
4.) after orange light recovery should boot up.
5.) wipe battery stat.
6.) enjoy your phone again.
Hope this will help to somebody .
Click to expand...
Click to collapse
my phone doese not turn on, when i press the volume - with power button, green light blinks. would not go in to recovery mode. when only power button is pressed it vibrates three times and amber light flashes.
please help

ray00136 said:
my phone doese not turn on, when i press the volume - with power button, green light blinks. would not go in to recovery mode. when only power button is pressed it vibrates three times and amber light flashes.
please help
Click to expand...
Click to collapse
Having the same problem and wiping battery stats isn't working for me! See here for more info on my problem!

thermoska said:
Hi
I had the same issue yesterday. After one hour of stress(I have DHD for 4 days), I finally find out solution which worked for me:
1.) pull out the battery from phone for at least 10 minutes.
2.) connect phone to the charger.
3.) pull battery to the phone and wait
4.) after orange light recovery should boot up.
5.) wipe battery stat.
6.) enjoy your phone again.
Hope this will help to somebody .
Click to expand...
Click to collapse
Thanks for your reply! this worked for me, allmost.
I did however had to press the Power button ONCE to start the phone.
- Plugged in charger, pulled in battery, (orange light was turned), then after 25 sec I pressed the Power button - and Voila! My Phone started as normal.
I diden't need to do any "Wipe battery status", but after reading about it I did it anyway. It was'nt necessery though in my case.
THanks a lot you guys for your replys! I thought for sure my phone was dead.

try sptool to format your phone except the boot loader then try to flash the phone, if its not working then change the mother board !!!!!

Completely unable to boot to download mode

Hi, as the title says I am completely unable to boot to download mode on my E988. I have literally tried every possible combination of button pressing but nothing works. I have tried rebooting to bootloader from cwm but that doesnt work either, all it does is reboot, show the LG logo, then it reboots normally.. I have tried using terminal emulator to use the command "reboot download" but it doesnt work either, all it does is reboot, show the LG logo, then it reboots normally again. It seems that I am completely unable to access it at all. Any ideas?

Have you try with one end of the usb cord already plug in either your computer or phone, hold down both volume buttons, and plug in the other end. This was the only way down load mode would came on for me until I fixed the phone.

Yup I have. No combination of keys and button pressing seems to work for me it's odd.
Sent from my LG-E988 using XDA Free mobile app

To add on to my previous post, when I do the method whereby I hold vol + and vol - and plugging the usb cord in without my phone's battery, a message shows up when it is detected saying that a "...usb device has malfunctioned...". My phone will then just keep showing the lg logo over and over again causing the message to pop up again and again as the phone is detected and then not detected and the cycle just repeats itself. I have tried to reinstall lg drivers but nothing seems to work...
Edit: It would seem that the phone is indeed trying to boot to download mode whether I use the key combination or command, but it is unsuccessful in doing so and just reboots. Has anyone ever encountered this problem?

i can't access download mode on my lg f240l
guys please help me
i have tried to install a cwm on my lf but when i tried to restart it boots up and stopped on lg logo
i want to use flash tool i have the dll and tot file bot i can't access download mode (does not work vol + and connecting it with usb)
and when you start the power button menu and back keys blinking
Does anyone know what to do?

sllavy said:
i can't access download mode on my lg f240l
guys please help me
i have tried to install a cwm on my lf but when i tried to restart it boots up and stopped on lg logo
i want to use flash tool i have the dll and tot file bot i can't access download mode (does not work vol + and connecting it with usb)
and when you start the power button menu and back keys blinking
Does anyone know what to do?
Click to expand...
Click to collapse
i made it
1 pulled out the battery
2 press volume key up and down(at the same time)
3 plug the usb
and it worked !!!!
happy with download mode and flash tool

sllavy said:
i made it
1 pulled out the battery
2 press volume key up and down(at the same time)
3 plug the usb
and it worked !!!!
happy with download mode and flash tool
Click to expand...
Click to collapse
I have tried that at least a 100 times (I really did) but it doesnt work for me...

Me too, I'm having the same problem, I'm totally unable to get into download mode using standard methods (vol up/down, battery in, battery out etc etc)

dkusnierz said:
Me too, I'm having the same problem, I'm totally unable to get into download mode using standard methods (vol up/down, battery in, battery out etc etc)
Click to expand...
Click to collapse
I have the same problem, and I don´t know what to do. I get lost.....
I can understand why this happend. It should be a simple way to enter in download mode, but nothing results. I´m almost crazy...

Rucosta said:
I have the same problem, and I don´t know what to do. I get lost.....
I can understand why this happend. It should be a simple way to enter in download mode, but nothing results. I´m almost crazy...
Click to expand...
Click to collapse
Please help. I am stuck too... No download mode is insane

Not turning on

Hi,
asus zenfone 2 not charging or turning on. just the symbol as attached pic.
when connected to charger it get vibrates and turn on with charge symbol and after few mins goes off. and this repeats. Please someone help on this. Appreciate your help.

if u can acces the bootloader menu (press the power button until the phone turn off then press volume up + power when it vibrate release the power button only) u can install the stock rom using this guide "http://forum.xda-developers.com/zenfone2/general/wwze551ml2-20-40-19420160713-raw-t3437416"
if can´t acces to bootloader u have to do this "http://forum.xda-developers.com/zenfone2/general/guide-brick-soft-hard-bricked-zenfone-2-t3284256"

lineu94 said:
if u can acces the bootloader menu (press the power button until the phone turn off then press volume up + power when it vibrate release the power button only) u can install the stock rom using this guide "http://forum.xda-developers.com/zenfone2/general/wwze551ml2-20-40-19420160713-raw-t3437416"
if can´t acces to bootloader u have to do this "http://forum.xda-developers.com/zenfone2/general/guide-brick-soft-hard-bricked-zenfone-2-t3284256"
Click to expand...
Click to collapse
Hi lineu, Thank you so much. I'm trying the 2nd method which you advised as dont have access to bootloader itself.
during this step, when using xFSTK Downloader 1.7.0, in download status i can see
"Details: BATI:42415449: Batter voltage: 0x45(1294.760000V) The threshold: 0xbf(3.585000V)" and progress bar shows only 8% for a longer time. am i missing something.
My phone is in dead state, i cannot even see charging icon in the screen. Appreciate your help on this. Please help. Attaching the screenshot for your reference.

I think that error is because the battery go to 0%, any chance to extract it and charge manually? With that process u recover the bootloader and later u can use the Asus flash ttools
Or try again the procedure (u can see if the windows device manager recognize the morefield driver when u connect the phone)

how to charge battery manually? as when i connect to the charger it is not getting charge.

suracesh said:
how to charge battery manually? as when i connect to the charger it is not getting charge.
Click to expand...
Click to collapse
just leave it on charge for few hours

LG G3 Stuck in Factory Reset Status 2

Hello there,
Today my rom (Xenon HD) stopped working and i wanted to get my old stock rom back.
So i started to downgrade, but in the end i ended up in the Factory Reset Status 2 after it shows the boot animation of an os called "mini os".
Anybody got experience on this ?
Thanks
Baschdi

Factory Reset 2
Baschdi_ said:
Hello there,
Today my rom (Xenon HD) stopped working and i wanted to get my old stock rom back.
So i started to downgrade, but in the end i ended up in the Factory Reset Status 2 after it shows the boot animation of an os called "mini os".
Anybody got experience on this ?
Thanks
Baschdi
Click to expand...
Click to collapse
First remove your battery then insert battery dont power on mobile . holding the volume up, plug in a microUSB cable into your phone.
Make sure the USB side is already plugged into the computer
You should start to see "Download Mode" for a few seconds and then it will show "Firmware Update". You are now in Download Mode!
Open LG Flash Tool and Put your dll and tot files in and use Board DL (Very Important)
after u success
It should boot into MiniOS just hit ok. Push power button plus touch the screen where it says Normal boot+(power)
done

This is not working for me. it says waiting for connection, please help
i am frustrated !!!

likhil2k3 said:
This is not working for me. it says waiting for connection, please help
i am frustrated !!!
Click to expand...
Click to collapse
Try unplugging and plugging back in and ensure you are on PORT41 for the device driver. After you do that and in Download Mode, then unplug and replug USB.
Also do not use USB 3 and try another port if you still have issues.

Bhimani bhargav said:
First remove your battery then insert battery dont power on mobile . holding the volume up, plug in a microUSB cable into your phone.
Make sure the USB side is already plugged into the computer
You should start to see "Download Mode" for a few seconds and then it will show "Firmware Update". You are now in Download Mode!
Open LG Flash Tool and Put your dll and tot files in and use Board DL (Very Important)
after u success
It should boot into MiniOS just hit ok. Push power button plus touch the screen where it says Normal boot+(power)
done
Click to expand...
Click to collapse
I have same issue in my LG G3 D850 I have apply your procedure Thanks It works ... first time the setup screen completes but when i powered off mobile and insert the sim and then powered on its again going to miniOs again i Normal boot+(power) but now boot looping auto ... what can i do now ???

For me who had the same issue, I just rebooted the device back into download mode and the LG flashtool resumed automatically. (I did not close or stop the process from the LG flashtool when I got this message).
Once the process resumed automatically, I still got download fail.
I can see whenever the device reboots, the modem disappears from within device manager after getting to the "Factory Reset 2" screen.
Any advice?
Update: I tried about 7 times to get it flashed. I ended up just restarting the phone in normal mode and strangely voila it works perfectly. Even though the software said the flash failed, it still worked. Thanks anyway!

Bhimani bhargav said:
First remove your battery then insert battery dont power on mobile . holding the volume up, plug in a microUSB cable into your phone.
Make sure the USB side is already plugged into the computer
You should start to see "Download Mode" for a few seconds and then it will show "Firmware Update". You are now in Download Mode!
Open LG Flash Tool and Put your dll and tot files in and use Board DL (Very Important)
after u success
It should boot into MiniOS just hit ok. Push power button plus touch the screen where it says Normal boot+(power)
done
Click to expand...
Click to collapse
This worked. Tks a lot.

I just got a LG harmony and as i soon turned it on it went to factory reset status and I tried to bypass but it keeps taking me to Factory reset, I also tried the download mode which took me to firmware update for hours it has still been at 0%. Taking forever

Bhimani bhargav said:
Factory Reset 2
First remove your battery then insert battery dont power on mobile . holding the volume up, plug in a microUSB cable into your phone.
Make sure the USB side is already plugged into the computer
You should start to see "Download Mode" for a few seconds and then it will show "Firmware Update". You are now in Download Mode!
Open LG Flash Tool and Put your dll and tot files in and use Board DL (Very Important)
after u success
It should boot into MiniOS just hit ok. Push power button plus touch the screen where it says Normal boot+(power)
done
Click to expand...
Click to collapse
thank you very much ,it work succesful

Question My Poco F3 froze then i proceeded to a hard reset. Phone goes into bootloop without any display. Any FIxes?

So I am normally using my phone scrolling through social media but it suddenly froze so I tried to hard reset it, but it goes in to a bootloop without any display on the screen. I could tell it is on a bootloop because of the repeating vibration everytime the phone boots up.
My device is Poco F3 (alioth) Running stock MIUI 12.5 bootloader unlocked and rooted with Magisk.
Things I have tried:
Long pressing power button, long pressing both power button and volume down button, long pressing power and volume up button, then long pressing all of them.
Plugging it on my PC but it doesn't even detect it. Tried inputting
Code:
adb devices
and
Code:
fastboot devices
Still doesn't work. I even made sure that my drivers are working so I tried it on my brothers Poco F3 and the PC can detect his phone through ADB commands.
Waiting for a day if it magically turns on again. Nope.
Charging it up because maybe the battery is low. Nope.
At this point my only two choices is opening up the back panel then replugging the battery so it completely turns off and hopefully boots up. But its a risky task since I don't have special tools to open up my phone, and my another choice is just bring it on a service center.

rururi said:
So I am normally using my phone scrolling through social media but it suddenly froze so I tried to hard reset it, but it goes in to a bootloop without any display on the screen. I could tell it is on a bootloop because of the repeating vibration everytime the phone boots up.
My device is Poco F3 (alioth) Running stock MIUI 12.5 bootloader unlocked and rooted with Magisk.
Things I have tried:
Long pressing power button, long pressing both power button and volume down button, long pressing power and volume up button, then long pressing all of them.
Plugging it on my PC but it doesn't even detect it. Tried inputting
Code:
adb devices
and
Code:
fastboot devices
Still doesn't work. I even made sure that my drivers are working so I tried it on my brothers Poco F3 and the PC can detect his phone through ADB commands.
Waiting for a day if it magically turns on again. Nope.
Charging it up because maybe the battery is low. Nope.
At this point my only two choices is opening up the back panel then replugging the battery so it completely turns off and hopefully boots up. But its a risky task since I don't have special tools to open up my phone, and my another choice is just bring it on a service center.
Click to expand...
Click to collapse
If the phone is bootloader locked don't do anything, take it to service center it's out of your hands.
If service center intends to charge you something well you could find some people online with edl accounts to do flashing for you but this sounds like hardware issue if you don't see poco logo ...
Edit: Sry didn't read the post fully - did u try fastboot devices when in fastboot mode - volume down and power ? If it is recognized and bootloader unlocked you can try flashing - go with xiaomi firmware, last thing you want is to be stuck on custom firmware when you take it in for repair - again only if bootloader is unlocked

since your brother pc can recognize, tried fastboot miui.eu on his pc
but I had this problem before and the only solution is to change mainboard on the xiaomi service center.

rururi said:
So I am normally using my phone scrolling through social media but it suddenly froze so I tried to hard reset it, but it goes in to a bootloop without any display on the screen. I could tell it is on a bootloop because of the repeating vibration everytime the phone boots up.
My device is Poco F3 (alioth) Running stock MIUI 12.5 bootloader unlocked and rooted with Magisk.
Things I have tried:
Long pressing power button, long pressing both power button and volume down button, long pressing power and volume up button, then long pressing all of them.
Plugging it on my PC but it doesn't even detect it. Tried inputting
Code:
adb devices
and
Code:
fastboot devices
Still doesn't work. I even made sure that my drivers are working so I tried it on my brothers Poco F3 and the PC can detect his phone through ADB commands.
Waiting for a day if it magically turns on again. Nope.
Charging it up because maybe the battery is low. Nope.
At this point my only two choices is opening up the back panel then replugging the battery so it completely turns off and hopefully boots up. But its a risky task since I don't have special tools to open up my phone, and my another choice is just bring it on a service center.
Click to expand...
Click to collapse
Do you have any clue as to why this happened? Any mods done besides applying Magisk?
If the software got damaged, you could try the EDL Mode but that's difficult. Should be your last resort.
If hardware, then I don't know unfortunately...but then how?

rururi said:
So I am normally using my phone scrolling through social media but it suddenly froze so I tried to hard reset it, but it goes in to a bootloop without any display on the screen. I could tell it is on a bootloop because of the repeating vibration everytime the phone boots up.
My device is Poco F3 (alioth) Running stock MIUI 12.5 bootloader unlocked and rooted with Magisk.
Things I have tried:
Long pressing power button, long pressing both power button and volume down button, long pressing power and volume up button, then long pressing all of them.
Plugging it on my PC but it doesn't even detect it. Tried inputting
Code:
adb devices
and
Code:
fastboot devices
Still doesn't work. I even made sure that my drivers are working so I tried it on my brothers Poco F3 and the PC can detect his phone through ADB commands.
Waiting for a day if it magically turns on again. Nope.
Charging it up because maybe the battery is low. Nope.
At this point my only two choices is opening up the back panel then replugging the battery so it completely turns off and hopefully boots up. But its a risky task since I don't have special tools to open up my phone, and my another choice is just bring it on a service center.
Click to expand...
Click to collapse
If it's recognised by your brothers pc, try that pc for flashing stock fastboot rom using miflash, and don't forget to choose 'flash and wipe' instead of 'flash and lock' in bottom right corner of miflash. Let us know how you get on

Happened today. Random bootloop while under normal use. Also occasionally attempted to trigger the emergency SOS call when power BTN clicks 5 times.
Saved by a solution in poco x3 thread.
The failure mode I experienced was possibly a "sticky" power button.unsure if it's an electrical short or something mechanical in nature tho since it's intermittent triggering of the power button.
Temp fix was some quick clicks of the power button a bunch of times(20-30 clicks?).
Also shut off the emergency sos function.

jowaii89 said:
Happened today. Random bootloop while under normal use. Also occasionally attempted to trigger the emergency SOS call when power BTN clicks 5 times.
Saved by a solution in poco x3 thread.
The failure mode I experienced was possibly a "sticky" power button.unsure if it's an electrical short or something mechanical in nature tho since it's intermittent triggering of the power button.
Temp fix was some quick clicks of the power button a bunch of times(20-30 clicks?).
Also shut off the emergency sos function.
Click to expand...
Click to collapse
Same... it started calling emergency number and wouldn't shut off by holding power button.
Worst device ever
{Mod edit: Inappropriate language edited. Oswald Boelcke}