Develop Bugs

[Q] HTC ONE V fails to start, please help.

My brother is using HTC ONE V for last 8 months. He got it rooted from his friend some 20 days back, was on stock rom. Yesterday suddenly phone got switched off in the afternoon. he tried to restart it, tried to soft reset- by holding power button. and tried to hard reset by holding power and volume down. but unfortunately phone didnt respond, he connected to a wall charger but no led notification light. now today evening, when he got back home, i also tried same things, but no luck. At last I attached it to my laptop via usb cable, and led notification light was back. I allowed it to charge it for some time and then tried to start it with power button. it worked. phone worked for about 20 mins, during that time it auto rebooted one time, but we thought problem was solved. we also did factory reset to make a new start, it worked fine..phone worked like new for an hour, battery was around 50% or so, and then.. went dead again..we just inserted micro sd card and sim..few minutes after that it went DEAD.. now even laptop isnt recognizing it. no led notification light or windows sound when connected to laptop.
Can anyone help? what has happened? Is it some battery problem??
thanks and regards,
K

any help...

hold power and volume down key button for 7-10 secs and try to install new custom rom

gulsher said:
hold power and volume down key button for 7-10 secs and try to install new custom rom
Click to expand...
Click to collapse
phone doesnt boot up or go into recovery when i press this buttons.. nothing happens...

drketul said:
phone doesnt boot up or go into recovery when i press this buttons.. nothing happens...
Click to expand...
Click to collapse
Hold power button for 6-8 sec.... When the screen turns black, quickly hold the power down button... U will be in bootloader.... And then flash recovery....

rohov said:
Hold power button for 6-8 sec.... When the screen turns black, quickly hold the power down button... U will be in bootloader.... And then flash recovery....
Click to expand...
Click to collapse
nothing happens...phone is dead i guess..??
should i take it to service centre, i have no warranty here in india as it's imported piece..

drketul said:
nothing happens...phone is dead i guess..??
should i take it to service centre, i have no warranty here in india as it's imported piece..
Click to expand...
Click to collapse
Send it in I did on my htc one x , no led or hard reset will fix most likely the motherboard went dead or battery im just guessing.
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2

[Help] Phone wont turn on after low battery

I have been using my LG Optimus G for about 6 months now and everything was working fine, untill yesterday.
My phone ran out of battery and i left it over night to recharge. In the morning when i tried to turn it on
the screen just stayed black and it wouldnt start. The only thing i can get out of it is when its plugged in
and i hold the power button for about 10-15 seconds the led light shines red for about 7 seconds.
Other than that i cant do anything with it, cant even get the lg logo or the vibration from the boot.
Tried a hard reset-didnt work
Ive looked a little bit online but i couldnt find any problems like this and i really dont want to buy a anew phone
since ill have to save up for like 6 months
Please help
Thank you in advance
PS: Sucks to have this as my first post

Had also that problem. For me it helped to press the power button as long as it takes untill phone goes on even if it takes some minutes. But if it not help, try to boot in bootloader(volume up+power+home). In Bootloader mode press 2times volume down and power button to get to your recovery. If getting succesfully to recovery make a full wipe and install your rom.

cyraxx84 said:
Had also that problem. For me it helped to press the power button as long as it takes untill phone goes on even if it takes some minutes. But if it not help, try to boot in bootloader(volume up+power+home). In Bootloader mode press 2times volume down and power button to get to your recovery. If getting succesfully to recovery make a full wipe and install your rom.
Click to expand...
Click to collapse
Held the power for 2 min and no effect. And for the second point, what do you mean by Vol up+ Power+Home, because my phone doesent have a physical home button.

Press volume up+ home+ power (all together). Home button which you usualy use all the time, yes that button in the mid, i know its not really pressing so hold your finger on it. After that you will come to the Bootloder mode, in there you should press 2x volume down and then power, this will bring you to your recovery.

cyraxx84 said:
Press volume up+ home+ power (all together). Home button which you usualy use all the time, yes that button in the mid, i know its not really pressing so hold your finger on it. After that you will come to the Bootloder mode, in there you should press 2x volume down and then power, this will bring you to your recovery.
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Click to collapse
Wont work . This looks more like a hardware malfunction.

It seems the battery is not charging. If your phone is not modified in anyway,send it to warranty. If you're rooted and have a custom rom,go to a gsm service,at least to make it turn on. If they do that,flash stock and up to warranty with it.
Sent from LG E975 pwd by CM 10.2

Brick maybe?

Hello there, I was installing Recovery using this, http://forum.xda-developers.com/showthread.php?t=1746682, I only went up to the first part of unrooting the phone where it asks me to connect my and install te recovery, my phone after the root did not want to turn on. I tried using the Volume +/- along with the home key, nothing, it just vibrates and nothing. I tried pulling out the battery and the same thing happened, no matter what I did, it vibrates and won't turn on. Also when I hook it up to the charger and try turning on it vibrates and it keeps vibrating in loops, around 2-3 sec apart. What is wrong with my phone? Please don't tell me it's a brick, I just got it yesterday ;p

infernel250 said:
Hello there, I was installing Recovery using this, http://forum.xda-developers.com/showthread.php?t=1746682, I only went up to the first part of unrooting the phone where it asks me to connect my and install te recovery, my phone after the root did not want to turn on. I tried using the Volume +/- along with the home key, nothing, it just vibrates and nothing. I tried pulling out the battery and the same thing happened, no matter what I did, it vibrates and won't turn on. Also when I hook it up to the charger and try turning on it vibrates and it keeps vibrating in loops, around 2-3 sec apart. What is wrong with my phone? Please don't tell me it's a brick, I just got it yesterday ;p
Click to expand...
Click to collapse
I think this kit is honestly the easiest way to brick your phone. There are simply too many options, most of them have no real use for this phone, and the free version never gets updated. Honestly think it's a bad move for people who are new to the game.
To get in download mode:
Start with the phone off.
Press and hold the home button and volume down button.
Press the power button until the phone vibrates.
Release the power button.
To get in recovery mode.
Start with the phone off.
Press and hold the home button and volume up button.
Press the power button until the phone vibrates.
Release the power button.
Release the volume up and home button when the blue text appears in the top left corner of the screen.
If these won't work, you are bricked. Time for JTAG.

I agree 100%. That kit seemed pretty helpful for some when this was still pretty new, but recently it seems there are more reports of failures (or worse) than successes. When you get this fixed I suggest reading all the stickies and then take it from there.
Good luck
Sent from my SGH-T999L using XDA Premium 4 mobile app

[Q] Bootloop help (cannot access fastboot/adb)

I just rooted and S-off my HTC via rumrunner.
No flash roms install or custom recovery installed.
I wanted to see if I still had CWM from my last root (I returned to stock via http://forum.xda-developers.com/showthread.php?t=2475216&highlight=s-on.
So I went into the bootloader or fastboot (I don't remember) and hit recovery. This did not send me to a CWM, but it appeared to be the stock version of recovery. The process took too long (I know impatient) so I turned it off via power button + volume down.
Now I come to you in need, my phone is constantly turning off/on only displaying the green htc text, no red text, then pausing for 8 seconds, then off again to black screen. The whole process lasts 12 seconds, and this had been going on for about 10-15 min atm.
Plugging it in, my computer does not have the time to recognize it with adb, or fastboot.
I cannot use the power button + volume down to go into bootloader, and pressing the power button does nothing.
Please help me.

So the problem still persists and I assume it's going to keep turning on and off for a while.
I'm just going to wait until the battery dies and see if it can charge and turn it back into bootloader. I'll report back on that.
On a side note in the case that this is bricked, anyone recommend any future phones out there better than the one with verizon? If not I'm probably just going to stick to this phone.

geeibara said:
So the problem still persists and I assume it's going to keep turning on and off for a while.
I'm just going to wait until the battery dies and see if it can charge and turn it back into bootloader. I'll report back on that.
On a side note in the case that this is bricked, anyone recommend any future phones out there better than the one with verizon? If not I'm probably just going to stick to this phone.
Click to expand...
Click to collapse
Hold down the volume down and power button at the same time, until the white hboot menu appears.
This may take a good 15 seconds or more, keep holding them down until the hboot menu appears.
Sounds like you aren't holding down long enough. If that doesn't work, try both volume up and down and power all at once.
Then when the screen goes black, let up on the up volume key, so that you enter fastboot via volume down and power.
Then you should be able to fastboot flash whatever you need to get back up and running again.
I wouldnt just let it keep looping until it dies though.
Probably won't damage anything but I doubt that it's real great for the device.

santod040 said:
Hold down the volume down and power button at the same time, until the white hboot menu appears.
This may take a good 15 seconds or more, keep holding them down until the hboot menu appears.
Sounds like you aren't holding down long enough. If that doesn't work, try both volume up and down and power all at once.
Then when the screen goes black, let up on the up volume key, so that you enter fastboot via volume down and power.
Then you should be able to fastboot flash whatever you need to get back up and running again.
I wouldnt just let it keep looping until it dies though.
Probably won't damage anything but I doubt that it's real great for the device.
Click to expand...
Click to collapse
So here's the update.
Screen is now black, meaning the boot up/down process has stopped.
I have tried these:
A. Hold down the volume down + power button for 20+ seconds.
B. Hold down the volume up + volume down + power button for 20+ seconds and let up on the volume up button when screen goes black.
These two methods results in a single boot up to green HTC text then black screen.
I suspect the device has lost most of its power. Tried it for a third time, the device is now unresponsive and remains at black screen.
Now I plugged the usb cable connected to the power adapter.
The device enters the aforementioned continuous boot loop.
I tried method A and B, and there are no results, the boot loop continues. Now the device returns to the low or no powered state.
Now the device is connected to the computer. The same happens as if it were connected to the power adapter.
Method A and B still do not work.
Results: holding down buttons longer do nothing for me. The device seems to have lost power, but when charged, immediately the device enters the boot loop state.
Note: when doing method A and B the trials were done when screen is on and when screen is off, still no results.
Now the screen is off and not connected to anything. The problem still persists.

ak074 said:
leave the phone charging for at least 10-15 min on the AC adapter. press and hold both vol buttons then press and hold power for 2+ minutes. after 2 minutes, let go of all buttons except volume down. success?
---------- Post added at 10:10 AM ---------- Previous post was at 09:40 AM ----------
actually doing that will destroy the battery. well maybe destroy is too strong of a word but it will damage it for sure. this is a very useful site for anything battery...
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Click to expand...
Click to collapse
I actually tried the 2+ minutes because I saw someone had success with another phone and they said they did it for 3 1/2 min. However it did not work.
Update: Welp, I gave up. I'm going to get my replacement soon and I'll be turning it into Verizon. Really it's not that bad of a loss since I just wiped the phone, only thing is I lost my screen protector and carbon skin

ak074 said:
have you tried to just let the phone bootloop while holding vol down?
Click to expand...
Click to collapse
Yep, nothing happened.

Bootlooped too!
Hello I have a HTC Thunderbolt that is S-ON Unlocked and unrooted with stock recovery that is in a bootloop that does now show on ADB or Fastboot. PLEASE HELP!!!!! I REALLY NEED IT!!

M8 Screen won't come on

M8 screen won't come on at phone does power on but the screen does not is any body else had this same issue and what is the fix on this
does anyone have an idea on how to fix this

bdouc said:
M8 screen won't come on at phone does power on but the screen does not is any body else had this same issue and what is the fix on this
does anyone have an idea on how to fix this
Click to expand...
Click to collapse
How can you tell the phone is on if the screen won't come on?
What have u flashed?

Heisenberg420 said:
How can you tell the phone is on if the screen won't come on?
What have u flashed?
Click to expand...
Click to collapse
i can tell the phone is on cause when i plug the phone on my PC sync manager pops up and Auto play also pops up flashed vipeneroneM8 ,last week and phone was working good till today screen started to flash and went off did 3 key reset by holding the power the volume down and volume up while phone was on charger but no luck

bdouc said:
i can tell the phone is on cause when i plug the phone on my PC sync manager pops up and Auto play also pops up flashed vipeneroneM8 ,last week and phone was working good till today screen started to flash and went off did 3 key reset by holding the power the volume down and volume up while phone was on charger but no luck
Click to expand...
Click to collapse
Did you make a nandroid backup before u flashed viper one? If u did enter recovery by rebooting holding down vol down and restore your backup. Or flash your carriers stock firmware. Check the back to stock thread for info on that.
If that doesn't work it's a hardware issue and you should check your warranty and get a replacement.

Thank you guys for the help and for everyone coming together to come up with solution it is deeply appropriated my M8 was finally able to boot it up I plugged phone on the charger and directly to the power outlet on the wall and hold the volume up + volume down + power bottom all 3 keys at same time for 20 minutes and released all key at the same and left phone on charger over night for 24hrs and phone was able to boot up

I think you only need to hold Vol Up + Power for a few seconds and it should reboot.
Mine did the same thing once and that's how I got it to restart.

gokun said:
I think you only need to hold Vol Up + Power for a few seconds and it should reboot.
Mine did the same thing once and that's how I got it to restart.
Click to expand...
Click to collapse
True. Power + Vol Up is a reboot, basically a simulated battery pull (for phones that have a removable battery.
Power + Vol Down boots into bootloader.
Power + Vol Up + Vol Down is not any button combo on this device, that I know of. This is perhaps a button combo for another device? Care should be taken to only do known button combos. Although I don't think there is any "harmful" button combo on the M8; on my old One X (EVITA) folks would mistakenly do Power + Vol Up to go into bootloader (correct combo is Power+ Vol down) which erased the ROM and sent the phone into Qualcomm download mode, which would probably give you a heart attack!