Boot loop; what to do! - Galaxy Tab S Q&A, Help & Troubleshooting

I tried to increase dpi with build.prop change and got in boot loop. I always had devices with removable bateries....but here what to do??? How to escape

ivanox1972 said:
I tried to increase dpi with build.prop change and got in boot loop. I always had devices with removable bateries....but here what to do??? How to escape
Click to expand...
Click to collapse
Hold volume up+down and power and home buttons all at the same time till it reboots. Then quickly press them recovery combo to boot into recovery

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[Help] My phone is hard brick

so reason, i'm delete file build.prop. my phone is hard brick. i press power + volume up it turn on logo htc and off. i press power + volume down. nothing happen and when i charge baterry. no charge. help me
Kent21 said:
so reason, i'm delete file build.prop. my phone is hard brick. i press power + volume up it turn on logo htc and off. i press power + volume down. nothing happen and when i charge baterry. no charge. help me
Click to expand...
Click to collapse
1. Unplug phone - VERY important
2. power on phone, doesn't matter if it is boot looping or whatever
3. hold vol up and power EXACTLY 10 seconds
4. let go of both
5. hold vol down and power till boot loader comes up.
You have no charge because you are running an old ver of twrp, get 2.7.1.0
an0ther said:
1. Unplug phone - VERY important
2. power on phone, doesn't matter if it is boot looping or whatever
3. hold vol up and power EXACTLY 10 seconds
4. let go of both
5. hold vol down and power till boot loader comes up.
You have no charge because you are running an old ver of twrp, get 2.7.1.0
Click to expand...
Click to collapse
hold vol up and power EXACTLY 10 seconds
tks for your help. i'm press 30s. my phone is rescure
Share how I fixed my HTC M8 with the same problem.
Hi,
I just want to share how I fixed my HTC M8 with the same issue. The method is the same but a bit different. I found the solution from googling the below link:
http://forum.xda-developers.com/htc...ter-download-mode-t2853100/page2#post62490577
The essential method is to keep holding down the power button and don't let it go while pressing on the volume up button to reset. At the very moment before the phone resets and shows the HTC logo white screen, switch from pressing the volume up button to the volume down button while holding down the power button. Or you can count 10 seconds and switch before the screen resets.
I hope this helps other people with the same issue.
an0ther said:
1. Unplug phone - VERY important
2. power on phone, doesn't matter if it is boot looping or whatever
3. hold vol up and power EXACTLY 10 seconds
4. let go of both
5. hold vol down and power till boot loader comes up.
You have no charge because you are running an old ver of twrp, get 2.7.1.0
Click to expand...
Click to collapse
Thanks, the pwr + vol-up 10 seconds before the phone hard resets, them pwr + vol-down got me back into hboot and recovery and then out of a build.prop issue.
I have no idea why this is a thing: Getting into the boot loader is usually easy. I can't imagine why when the system doesn't boot normally that the standard procedure to enter hboot changes.
regardless of retarded engineering on qualcom or htc's part, thank you an0ther.

Bootloop, Can't get past warning screen in download mode

Hey Guys
So my friend gave me a Note 2 with 4.1.1 that's stuck in safe mode.
So i tried installing TWRP to install a KitKat rom, but i forgot to format data "stupid me :\"
anyways at first it booted till the part where it's "optimizing apps"
after it got to "finishing boot" it rebooted and, well, it's stuck in a bootloop.
so i tried getting into recovery by pressing the 3 buttons, it just continues with booting into the bootloop.
then i tried getting in download mode, it gets to the warning screen, but it refuses to continue when i press the volume up button :|
any help?? thank you
taha_elfeituri said:
Hey Guys
So my friend gave me a Note 2 with 4.1.1 that's stuck in safe mode.
So i tried installing TWRP to install a KitKat rom, but i forgot to format data "stupid me :\"
anyways at first it booted till the part where it's "optimizing apps"
after it got to "finishing boot" it rebooted and, well, it's stuck in a bootloop.
so i tried getting into recovery by pressing the 3 buttons, it just continues with booting into the bootloop.
then i tried getting in download mode, it gets to the warning screen, but it refuses to continue when i press the volume up button :|
any help?? thank you
Click to expand...
Click to collapse
perhaps try to reboot you phone by long press power button...
if you could get the phone to be recognized by adb then you could use:
adb reboot download​
to get to download mode.
Just a reminder:
TWRP :Vol Up + Home + Power (Release Power Button when samsung logo appears, keep holidn Vol Up + Home untill you see TWRP )
Download Mode: Vol Down + Home + Power, then press up when warning appears.
Hope this helps.
dabenaute said:
perhaps try to reboot you phone by long press power button...
Click to expand...
Click to collapse
tried that, with no success
bobfbaby said:
if you could get the phone to be recognized by adb then you could use:
adb reboot download​
to get to download mode.
Just a reminder:
TWRP :Vol Up + Home + Power (Release Power Button when samsung logo appears, keep holidn Vol Up + Home untill you see TWRP )
Download Mode: Vol Down + Home + Power, then press up when warning appears.
Hope this helps.
Click to expand...
Click to collapse
that was how i used to get the phone in download/recovery back when it was in safe mode.
but now, adb can recognize the phone, but it's "unauthorized" and stuck in a bootloop so i'm screwed :\
Anyways i think i should just take it to a repair shop but thanks so much for ur help guys ^^

Changed dpi now the phone won't turn on

I tried to change dpi in my phone and it shut down.
I tried to turn it on but nothing happens.
When I press the power button and volume up it shows the google logo and then nothing.
I can't get to recovery and the phone don't show notification light when I connect it to power or pc.
What do I do?
ofekbeatz said:
I tried to change dpi in my phone and it shut down.
I tried to turn it on but nothing happens.
When I press the power button and volume up it shows the google logo and then nothing.
I can't get to recovery and the phone don't show notification light when I connect it to power or pc.
What do I do?
Click to expand...
Click to collapse
How were you trying to change the DPI?
Tachi91 said:
How were you trying to change the DPI?
Click to expand...
Click to collapse
With this app: DPI Density Changer by Oumugai Enterprises
1:Turn on the phone
2:hold power + volume up
When the screen goes black (reboot) press volume down keep the power button pressed at all times
3:in the bootloader select recovery
4:reflash your rom
5: done
Mr Hofs said:
1:Turn on the phone
2:hold power + volume up
When the screen goes black (reboot) press volume down keep the power button pressed at all times
3:in the bootloader select recovery
4:reflash your rom
5: done
Click to expand...
Click to collapse
I don't know what happened but when I plugged it into power it showed the recovery for a second, then it turned off.
I have waited 15 min and then I tried to power it on into recovery and it worked.
Now I have skydragon and I think everthing is working.
Thanks anyway.

Need Help with ADB [Volum Up/Down + Power button BROKEN]

My ADB is On in settings and I can use ADB normal. But when my Phone is off I can't turn it on anymore the only way would be with ADB command: ADB reboot devices!
Power button + Volume UP/DOWN isn't working anymore...
The thing is, when connecting my Phone to my PC after it gets off it will show the charging animation. And when my phone reached 100% it stays in the animation and doesn't boot up. ADB isnt working in that state.
How can I boot my phone?? Pls I hope someone can help me PLS PLS
You must try conclude pins on motherboard for button volume up when you connecting USB cable, after that fastboot was started and you can type fastboot reboot command on pc.
my volume up button broken and i need that to flash stock rom again as phone in bootloop and cant access recovery,phone boots and shows logo for 1 sec and reboots again any ideas plz i flashed the oneos rom
ireaper4592 said:
my volume up button broken and i need that to flash stock rom again as phone in bootloop and cant access recovery,phone boots and shows logo for 1 sec and reboots again any ideas plz i flashed the oneos rom
Click to expand...
Click to collapse
If you have power and volume-down buttons functioning, boot the phone with the power button and when the bootloader unlocked warning comes up, press the volume-down button and you will get the options for restart, fastboot, recovery etc. Simply choose what you want with the volume-down button and confirm with the power button.
tnsmani said:
If you have power and volume-down buttons functioning, boot the phone with the power button and when the bootloader unlocked warning comes up, press the volume-down button and you will get the options for restart, fastboot, recovery etc. Simply choose what you want with the volume-down button and confirm with the power button.
Click to expand...
Click to collapse
yes got that problem is i need volume up button to work so i can put in adb mode so i can flash stock rom,i decrypted my devices then installed the oneos rom and thats when i lost access to recovery and goot into bootloop?

Question No usb , no bootloader mode only recovery mode reboot sur 1+

Hi,
My Oneplus 11 phone that I had converted from Colors OX to Oxygen OS following a restart only reboots on 1+, sometimes it goes to the recovery menu, the use of the power and volume keys to return to fasboot mode no longer have any effect... it hasn't even been recognized by a pc... Except the usb to charge seems to be working. What can I do in the face of so much mishap because I can't find a solution?
Thanks
Same situation here. I've tried everything for a month. No luck. Only thing you can do is send it back to Oppo or Oneplus
msm tools is the only thing can save it but require official authorization to log in. So don't bother trying anymore.
kikoleboss said:
Hi,
My Oneplus 11 phone that I had converted from Colors OX to Oxygen OS following a restart only reboots on 1+, sometimes it goes to the recovery menu, the use of the power and volume keys to return to fasboot mode no longer have any effect... it hasn't even been recognized by a pc... Except the usb to charge seems to be working. What can I do in the face of so much mishap because I can't find a solution?
Thanks
Click to expand...
Click to collapse
Does the phone boot into recovery by itself when you turn it on? or do you boot it into recovery yourself?
ChrisFeiveel84 said:
Does the phone boot into recovery by itself when you turn it on? or do you boot it into recovery yourself?
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Click to collapse
I would rather say by itself with several restarts alone on the 1+ screen, it arrives on the recovery screen alone and I choose english power off, I press again and it's the same cycle, I can choose reboot device it doesn't change nothing
kikoleboss said:
I would rather say by itself with several restarts alone on the 1+ screen, it arrives on the recovery screen alone and I choose english power off, I press again and it's the same cycle, I can choose reboot device it doesn't change nothing
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Click to collapse
already made a factory reset in the recovery and tried to boot ?
ChrisFeiveel84 said:
already made a factory reset in the recovery and tried to boot ?
Click to expand...
Click to collapse
Doesn't work I do but nothing ... Thank you for your help and no usb recognize only reboot reboot reboot and Recovery/language
If you have any idea or soft to do something ?
because only reboot reboot reboot
kikoleboss said:
Doesn't work I do but nothing ... Thank you for your help and no usb recognize only reboot reboot reboot and Recovery/language
Click to expand...
Click to collapse
Try holding volume up + volume down during boot, it should go into bootloader mode (start holding them before you power on the device by pressing the power button and continue holding them during boot). If it doesn't go into bootloader mode it's very weird because recovery is loaded after the bootloader.
TheNewHEROBRINE said:
Try holding volume up + volume down during boot, it should go into bootloader mode (start holding them before you power on the device by pressing the power button and continue holding them during boot). If it doesn't go into bootloader mode it's very weird because recovery is loaded after the bootloader.
Click to expand...
Click to collapse
Thanks but no change only reboot more speed
if i press the three buttons when booting in fact it turns on and off faster then i stop the three buttons, it stays on the 1+ screen for a long time fixed then arrives at the language screen
chines english
I corrected but I think it's because I press the volume and power button that it launches in fastbootd but no more bootloader and no ubs recognition
Any idea please ? no chance for me
kikoleboss said:
Thanks but no change only reboot more speed
if i press the three buttons when booting in fact it turns on and off faster then i stop the three buttons, it stays on the 1+ screen for a long time fixed then arrives at the language screen
chines english
I corrected but I think it's because I press the volume and power button that it launches in fastbootd but no more bootloader and no ubs recognition
Any idea please ? no chance for me
Click to expand...
Click to collapse
Very strange, fastbootd is inside the recovery and could be unbootable but normal bootloader mode should work nonetheless. Try having the phone connected to PC why attempting the button combination, maybe they added this security measure.
This device is hard bricked. I faced the same issue. Any key combinations won't take you to fastboot to fix. I gave it to service centre to fix.
TheNewHEROBRINE said:
Very strange, fastbootd is inside the recovery and could be unbootable but normal bootloader mode should work nonetheless. Try having the phone connected to PC why attempting the button combination, maybe they added this security measure.
Click to expand...
Click to collapse
When he can boot to fastbootd he can fix the phone
My phone is not bricked and i can with key Combo not boot to fastboot .
Power off
And press power, voll down and voll up boot to edl.
Power off
Voll down and Power boot to recovery
Power off
Voll up and power normal boot to system
When you can boot to fastbootd you can flash the full firmware over fastbootd
With fbe (Same firmware what you have used on your phone )
A hard brick is when you phone goes only in edl
kikoleboss said:
Thanks but no change only reboot more speed
if i press the three buttons when booting in fact it turns on and off faster then i stop the three buttons, it stays on the 1+ screen for a long time fixed then arrives at the language screen
chines english
I corrected but I think it's because I press the volume and power button that it launches in fastbootd but no more bootloader and no ubs recognition
Any idea please ? no chance for me
Click to expand...
Click to collapse
ChrisFeiveel84 said:
When you can boot to fastbootd you can flash the full firmware over fastbootd
With fbe (Same firmware what you have used on your phone )
A hard brick is when you phone goes only in edl
Click to expand...
Click to collapse
He has got a very strange brick, he can boot to recovery but not to bootloader, so it's not an hard brick like when you can only go into EDL mode. Did seriously OnePlus remove the possibility to enter bootloader mode with a key combo??? They make it worse with every phone they release, first edl, now fastboot. What will be next?
ChrisFeiveel84 said:
When you can boot to fastbootd you can flash the full firmware over fastbootd
With fbe (Same firmware what you have used on your phone )
A hard brick is when you phone goes only in edl
Click to expand...
Click to collapse
But no usb recognize with fastboot enhance
How I can flash ?
kikoleboss said:
But no usb recognize with fastboot enhance
How I can flash ?
Click to expand...
Click to collapse
You can boot to fastbootd?
TheNewHEROBRINE said:
He has got a very strange brick, he can boot to recovery but not to bootloader, so it's not an hard brick like when you can only go into EDL mode. Did seriously OnePlus remove the possibility to enter bootloader mode with a key combo??? They make it worse with every phone they release, first edl, now fastboot. What will be next?
Click to expand...
Click to collapse
I am very seriously annoyed, I can't find any solution since the usb is no longer recognized
kikoleboss said:
But no usb recognize with fastboot enhance
How I can flash ?
Click to expand...
Click to collapse
Is the fastboot driver installed ?
TheNewHEROBRINE said:
You can boot to fastbootd?
Click to expand...
Click to collapse
yes the phone go only on fastbootd with volume and power
ChrisFeiveel84 said:
Is the fastboot driver installed ?
Click to expand...
Click to collapse
normally yes the same on two pc
but how can i be sure
On CMD
fastboot flashing unlock
< waiting for any device >
Fastboot enhance nothing because no usb recognize
kikoleboss said:
yes the phone go only on fastbootd with volume and power
Click to expand...
Click to collapse
Are you sure that's not just recovery mode?

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