Develop Bugs

[HELP] HOX didn't turn on (totally bricked)

My brother has a HTC One X (still not unlock bootloader and root)
yesterday, when he upgraded GO lock screen, the phone freezed and crash. I don't know exactly what was he doing but as he said, he turn on the phone by pressing power + vol+ buttons. And chose something which he didn't know what is this lol
and then, the phone completely off. I tried to press power button or power + vol+ many times but the screen didn't show up anything
I connected it to my PC but PC didn't recognize phone, and of course, it can't be charged too
Anybody can help his HOX please
I don't know what to do now T.T

how old is this phone if it still under warenty i would send it back to either if its contract and covered to them or take it back to the shop you got it from because it sounds like a full on brick to me.

connect it to the charger for ATLEAST 1 hour then try again. there are no options in the bootloader which brick the phone

Vcek said:
connect it to the charger for ATLEAST 1 hour then try again. there are no options in the bootloader which brick the phone
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Click to collapse
yep, i agree... you should charge your phone and you will see you red led blinking... let it charge and that will do the trick

Then plug it to your PC's USB,if your PC can see it's presence and install drivers then it's not bricked.
Most probably your bro did a master reset from the bootloader menu and the battery was weak,if the phone doesn't boot after recharging then hold down power + volume to access bootloader menu and reset again this time with good battery

vegetaleb said:
Then plug it to your PC's USB,if your PC can see it's presence and install drivers then it's not bricked.
Most probably your bro did a master reset from the bootloader menu and the battery was weak,if the phone doesn't boot after recharging then hold down power + volume to access bootloader menu and reset again this time with good battery
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Click to collapse
I had this the other day and I plugged my USB cable into the PC and the notification light went red and then I opened terminal and typed in adb reboot and the phone rebooted hope it helps
Sent from my Xoom using xda app-developers app

before having the problem, his phone was at full charge
and as i mentioned above, connect to PC, charge ... the phone didn't show anything

Hold down the power button for 10 sec to do a ''battery removal'' simulation.
Also did yout try to enter bootloader menu holding power + volume(phone off)?

vegetaleb said:
Hold down the power button for 10 sec to do a ''battery removal'' simulation.
Also did yout try to enter bootloader menu holding power + volume(phone off)?
Click to expand...
Click to collapse
He sent it to warranty center yesterday
They said that the phone was damaged some cables ...

[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
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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?
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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!!

[Q] LG Optimus G Sprint is stuck on android recovery system, screen is cracked?

My LG Optimus G is stuck on the Android System Recovery screen. I can move up and down with the volume bar but I can select anything because you need to use the soft menu button and my screen is cracked there. Is there anyway to get around this? I've tried holding power and volume down to reset it but it just restarts and goes back to the recovery screen.

angelottia said:
My LG Optimus G is stuck on the Android System Recovery screen. I can move up and down with the volume bar but I can select anything because you need to use the soft menu button and my screen is cracked there. Is there anyway to get around this? I've tried holding power and volume down to reset it but it just restarts and goes back to the recovery screen.
Click to expand...
Click to collapse
The power button should be the select. Press up or down on the volume to navigate and press power when you are where you want it to be.
Is the recovery stock or CWM? The power button should work either way for the select. Hope this helps.
also if you are just trying to restart, try holding down only power for about 20-30 seconds, it should do a hard shut down, then when you press power to turn on again it should go to the system.

dopy25 said:
The power button should be the select. Press up or down on the volume to navigate and press power when you are where you want it to be.
Is the recovery stock or CWM? The power button should work either way for the select. Hope this helps.
also if you are just trying to restart, try holding down only power for about 20-30 seconds, it should do a hard shut down, then when you press power to turn on again it should go to the system.
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Click to collapse
I'm not sure if it's stock, it says Android Recovery System e3. It says to hit enter to choose an option but hitting the power button wouldn't select anything. I held down the power down and it shut off and isn't turning back on.

my lg optimus g turned off and now it wont come on or hold a charge
Well where do I start, I love this phone and I have not had a single issue with it until yesterday, took my phone off the charger in the am walked out the door , started my car went to make a phone call and my phone was off , tried to turn it on and to no avail, so i took the battery out of the phone (mind you this was quite an experience taking the back cover off) took care of that unhooked the battery let it sit for 5 minutes and it came back on like a charm , well as the day progressed my battery eventually died , so im thinking no biggie right? wrong tried to turn my phone on and nothing at all , just a solid red light which eventually cuts off but thats only when you put it on a charger and does nothing no blinking lights no power nothing. So ive been online following a bunch of different steps and the only thing i could do was put the phone into download mode when connected to a cpu but the cpu doesnt seem to see the device nor does it have power , im trying to fix this myself if possible, im really not trying to pay for a repalcement phone or wait 14 days to get another one so ill try as hard as i can here first and see if i can get some help.. PLEASE!!!! HELP!!!

angelottia said:
I'm not sure if it's stock, it says Android Recovery System e3. It says to hit enter to choose an option but hitting the power button wouldn't select anything. I held down the power down and it shut off and isn't turning back on.
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Click to collapse
Did the battery die? What happens when it is plugged in and you hold down the power? (to attempt to turn back on)

M8 won't power on

My M8 won't power on here is what happen my battery drained out and phone phone went off and when I got home put phone on the charger and left it charge over night the next morning tried to power on the phone but won't power on I held down the power button and volume down nothing and held down power button and volume still nothing it completely won't power on at all it been 3 to 4 days now still not powering on can anyone help or have any other solutions

bdouc said:
My M8 won't power on here is what happen my battery drained out and phone phone went off and when I got home put phone on the charger and left it charge over night the next morning tried to power on the phone but won't power on I held down the power button and volume down nothing and held down power button and volume still nothing it completely won't power on at all it been 3 to 4 days now still not powering on can anyone help or have any other solutions
Click to expand...
Click to collapse
well, if you can't power you M8 with any buttons combination i think you might have to send it to repair service...

Do you see the charging light at all?
Try plugging the phone into the pc via usb. Press and hold volume up and power until you hear a ding on the pc, might take a while.

bdouc said:
My M8 won't power on here is what happen my battery drained out and phone phone went off and when I got home put phone on the charger and left it charge over night the next morning tried to power on the phone but won't power on I held down the power button and volume down nothing and held down power button and volume still nothing it completely won't power on at all it been 3 to 4 days now still not powering on can anyone help or have any other solutions
Click to expand...
Click to collapse
I had the same problem after I did a dirty flash of a new ROM. Phone went black and didn't want to reboot anymore. What I did was to connect the phone via USB with the PC first. Then I tried combination of holding the power button for 20 sec. After that holding the Volume up key first then pressing together with the Power button and also hold it for 10-15 sec. After cycling that for 2-3 times finally my phone rebooted. I have no clue why but after that I was able to jump back into recovery and reflashed the ROM with full-wipe. Then everything was ok.

unplug phone, vol up and power for 11 seconds, let go of both, vol down and power to enter boot loader, then choose reboot. Must be unplugged for this

RoughNeck1971 said:
I had the same problem after I did a dirty flash of a new ROM. Phone went black and didn't want to reboot anymore. What I did was to connect the phone via USB with the PC first. Then I tried combination of holding the power button for 20 sec. After that holding the Volume up key first then pressing together with the Power button and also hold it for 10-15 sec. After cycling that for 2-3 times finally my phone rebooted. I have no clue why but after that I was able to jump back into recovery and reflashed the ROM with full-wipe. Then everything was ok.
Click to expand...
Click to collapse
Do you use TWRP recovery?
Sent from my HTC One_M8 using XDA Premium 4 mobile app

Yes. Version 2.7.1.0.

My phone went black and wouldn't do anything after I clean flashed a rom. I just left it alone once I established it wouldn't do anything and it came back on its own after a while. I was using twrp 2.7.1.0 also. I have switched to Phil's touch recovery to see if it happens next time I flash a rom.
Sent from my HTC One_M8 using XDA Premium 4 mobile app

Thank you for this information!!!
RoughNeck1971 said:
I had the same problem after I did a dirty flash of a new ROM. Phone went black and didn't want to reboot anymore. What I did was to connect the phone via USB with the PC first. Then I tried combination of holding the power button for 20 sec. After that holding the Volume up key first then pressing together with the Power button and also hold it for 10-15 sec. After cycling that for 2-3 times finally my phone rebooted. I have no clue why but after that I was able to jump back into recovery and reflashed the ROM with full-wipe. Then everything was ok.
Click to expand...
Click to collapse
My phone was in a similar situation after rebooting from giving the app "emoji switcher" root access (never had problems in the past).. I freaked out and could not get the phone on until I came upon your comment... Thanks!! :laugh:

Happy that my comment could help .

RoughNeck1971 said:
Yes. Version 2.7.1.0.
Click to expand...
Click to collapse
that reovery bricked my old htc sensation xe, i think the 2.7.1 has some issues

ashyx said:
Do you see the charging light at all?
Try plugging the phone into the pc via usb. Press and hold volume up and power until you hear a ding on the pc, might take a while.
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Click to collapse
MAN!!!!, THANK YOU SO MUCH. I had the same issue, phone completely died, wouldn't charge, had to connect to PC and hold vol up and power for like 30secs.
You are a life saver.

worked for me aswell thanks so much

Thanks!
RoughNeck1971 said:
I had the same problem after I did a dirty flash of a new ROM. Phone went black and didn't want to reboot anymore. What I did was to connect the phone via USB with the PC first. Then I tried combination of holding the power button for 20 sec. After that holding the Volume up key first then pressing together with the Power button and also hold it for 10-15 sec. After cycling that for 2-3 times finally my phone rebooted. I have no clue why but after that I was able to jump back into recovery and reflashed the ROM with full-wipe. Then everything was ok.
Click to expand...
Click to collapse
I have no idea what happened to mine, but it suddenly shut down while I was texting. Did exactly what you did with the 20 seconds and 15 second power/vol up, and it suddenly rebooted. Thank you so much!

holy **** i had this problem and i just did this and it worked.hahahahahaha

Bricked (?) Lenovo Zuk Z2

Hey, new user here.
I recently came across my old dead Z2. Is there any way to revive it?
If I hold the power button for half a second, it will vibrate, show the ZUK splash logo and then turn off.
If I keep holding the power button, it'll loop (vibrate --> show logo for a few seconds --> turn off).
If I plug it into my PC through USB-C, it'll do reboot over and over, similarly.
Most un-brick methods I've read involve using the notification LED to do something, but my phone doesn't show anything on the notification LED so I've tried a few times doing stuff using power button + volume-up but that doesn't work.
Power + volume down gets me into the bootloader I think. It says 'FASTBOOTMODE' in red, SECURE BOOT enabled and DEVICE STATE - locked.

Fluxiey said:
Hey, new user here.
I recently came across my old dead Z2. Is there any way to revive it?
If I hold the power button for half a second, it will vibrate, show the ZUK splash logo and then turn off.
If I keep holding the power button, it'll loop (vibrate --> show logo for a few seconds --> turn off).
If I plug it into my PC through USB-C, it'll do reboot over and over, similarly.
Most un-brick methods I've read involve using the notification LED to do something, but my phone doesn't show anything on the notification LED so I've tried a few times doing stuff using power button + volume-up but that doesn't work.
Power + volume down gets me into the bootloader I think. It says 'FASTBOOTMODE' in red, SECURE BOOT enabled and DEVICE STATE - locked.
Click to expand...
Click to collapse
Phone not dead.

https://youtu.be/nY1leEQF1fY
I gaurantee this will definitely unbrick your phone!:good::fingers-crossed: