[help] deadboot? - Xiaomi Redmi 4X Questions & Answers

My Redmi Note 4X doesn't start now. It just keeps on vibrating and then restart itself. It doesn't even show the MIUI Logo. I can't even boot into Recovery (because it restarts) any fix or workaround about this?
Its just black screen. And only vibrates every time it shuts down. And it is looping. Vibrate > Black Screen (NO MIUI) > Vibrate > Repeat
Even I tried VOLUME DOWN + POWER BUTTON (FASTBOOT) and VOLUME UP + POWER BUTTON (RECOVERY) nothing happens.

Press power+volume button for more than 10sec and your device will boot into fastboot . Then you can flash your device using MiFlash Tool.

Like I said I can’t boot to FastBoot neither Recovery because it just keeps on blackscreen and vibrates once and will restart. And it will repeat until the battery is out.

Just relaxed the phone for 1 and 2 hour then try to boot on fastboot mod.(not while charging)

If I would do what you said, I will need to let the battery drain first. But, when I open it again using the FastBoot/Recovery method, it will just repeat. The problem will still appear.

Related

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

Note: This is a re-post from the Verizon HTC forums (http://forum.xda-developers.com/showthread.php?t=2533042)
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/show...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 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.
geeibara said:
Note: This is a re-post from the Verizon HTC forums (http://forum.xda-developers.com/showthread.php?t=2533042)
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/show...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 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.
Click to expand...
Click to collapse
If I had to guess I would say your volume down is broken, else it would enter hboot
plug in the power and let it charge all day. then plug it to your pc and try to adb reboot bootloader or adb reboot recovery the instant you here the pc usb ingage.
once you get to the bootloader try and fastboot erase cache followed by fastboot reboot
after your phone boots you should be able to go back to bootloader and reinstall custom recovery
clsA said:
If I had to guess I would say your volume down is broken, else it would enter hboot
plug in the power and let it charge all day. then plug it to your pc and try to adb reboot bootloader or adb reboot recovery the instant you here the pc usb ingage.
once you get to the bootloader try and fastboot erase cache followed by fastboot reboot
after your phone boots you should be able to go back to bootloader and reinstall custom recovery
Click to expand...
Click to collapse
I have a few questions/concerns to this.
1. When I charge it, I can't stop the phone from the continuous boot. I'm afraid that doing this all day might hurt the phone more.
2. Currently I have been charging it via computer (still boot loop), and the computer does not recognize it at all. I think there is really not enough time because the loop duration is only a few seconds.
3. Since the phone is connected to the computer, the commands adb reboot bootloader and adb reboot recovery does not work. Error: device not found.
geeibara said:
I have a few questions/concerns to this.
1. When I charge it, I can't stop the phone from the continuous boot. I'm afraid that doing this all day might hurt the phone more.
2. Currently I have been charging it via computer (still boot loop), and the computer does not recognize it at all. I think there is really not enough time because the loop duration is only a few seconds.
3. Since the phone is connected to the computer, the commands adb reboot bootloader and adb reboot recovery does not work. Error: device not found.
Click to expand...
Click to collapse
well have you held the phone under a bright light and held just the power down for 15 seconds and let go when the phone go's off ?
clsA said:
well have you held the phone under a bright light and held just the power down for 15 seconds and let go when the phone go's off ?
Click to expand...
Click to collapse
So what is this method supposed to accomplish?
I did this and the phone stopped the continous boot. However when I tried to go to hboot it went back into the loop. I did this twice, and I'm able to stop the loop with the bright light method, but I don't know what to do from here.
Note: when plugging phone into computer, the loop starts again.
geeibara said:
So what is this method supposed to accomplish?
I did this and the phone stopped the continous boot. However when I tried to go to hboot it went back into the loop. I did this twice, and I'm able to stop the loop with the bright light method, but I don't know what to do from here.
Note: when plugging phone into computer, the loop starts again.
Click to expand...
Click to collapse
will the phone charge when in the off state / not from PC ?
clsA said:
will the phone charge when in the off state / not from PC ?
Click to expand...
Click to collapse
Plugging the phone into the adapter, the phone charges, but the boot loop occurs again.
geeibara said:
Plugging the phone into the adapter, the phone charges, but the boot loop occurs again.
Click to expand...
Click to collapse
the phone should not bootup with the power cord plugged in from an off state (are you turning the phone back on ?)
turn off phone by holding power 15 seconds under a bright light
plug phone into outlet (not PC) let charge till green light comes on (not Red)
hold volume down and power for 10 seconds ( you should be in hboot)
plug phone to PC choose fastboot hit power
your now in fastboot usb
from here you reflash recovery
fastboot erase cache and reboot recovery
if your still in bootloop I'm at a loss, and seems your hboot is corrupted I think you have to return your phone to Verizon or HTC.
clsA said:
the phone should not bootup with the power cord plugged in from an off state (are you turning the phone back on ?)
turn off phone by holding power 15 seconds under a bright light
plug phone into outlet (not PC) let charge till green light comes on (not Red)
hold volume down and power for 10 seconds ( you should be in hboot)
plug phone to PC choose fastboot hit power
your now in fastboot usb
from here you reflash recovery
fastboot erase cache and reboot recovery
if your still in bootloop I'm at a loss, and seems your hboot is corrupted I think you have to return your phone to Verizon or HTC.
Click to expand...
Click to collapse
Well I don't know if it is truly off, I'm just assuming it is.
But yes as soon as I plug the phone into the power adapter the red led flashes on, and the htc logo appears, then the loop continues.
I'll probably take it into Verizon tomorrow and update on what happens.
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
geeibara said:
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
Click to expand...
Click to collapse
sorry to hear that mate!!!

[Q] Stuck on 'Warning bootloader unlocked' screen

Hi everyone! Could I have bricked my Razr I? I was on 4.0.4 GB, then flashed the Motorola JB 4.1.2 EU vith RSDlite which was booting in fine. Made a backup from recovery as well. After that I have installed this zip: [ROM][MOD] Motorola RAZR i - One V.1.3.1 [JB EU 4.1.2] and rebooted. Still working fine. But wanted to clean it again, so I have booted into recovery and made a wipe of data/cache which did not finish for minutes. I have switched off from recovery and cannot switch back again. It stops on the 'Warning bootloader unlocked' screen whichever key combination I start with (power + vol down does the same) does not boot into rom or fastboot either. After a while the screen switches off and the green led stays on only, which can be switched off with the power+vol down. If I push the power again the warning sreen comes and stayes again. What can I do you think? Please help! :crying:
Tried all the key combinations, timings, but there is only 3 states coming up: 'Warning bootloader unlocked' screen / black screen with continuous green led / completely off. PC and RSD Lite 6.1.5 (with correct drivers and tested before) does not react to connection is any state.
Enter in fastboot and try installing again from RSD Lite
Thank you for the reaction, but that is my problem. If I am holding PWR and vol down the warning screen comes up, releasing the PWR and the warning screen stayes.
If I keep holding the PWR with the vol down, first there is the warning screen,then there is blank screen with continous green led, which just stayes.
Same thing if press vol up+ vol down + power. Releasing the PWR just makes the warning screen stay.
Is it possible that the fastboot mode is broken? (I did nor downgrade). I am very desperate now
Turn off the computer, wait 10 seconds, then hold L + Volume Down Power when Power vibrate loose, if not enter fastboot repeats the combination of buttons without switching off the mobile.
still no luck with holding vol down + power. If I release the power after the vibration (and keep pressing vol down) it stays on the warning screen. If I continue holding both it goes to a blank screen with the led shining green.
oroszms said:
still no luck with holding vol down + power. If I release the power after the vibration (and keep pressing vol down) it stays on the warning screen. If I continue holding both it goes to a blank screen with the led shining green.
Click to expand...
Click to collapse
release power as soon as you see the green led after reboot! not after vibration, this can be to late...
hi, just to update this issue has been solved by changing the motherboard (from a razr i with broken screen)

Boot loop. No Recovery but Download mode

Hello,
this is my first post on here and I am sorry for it being a "Help me" one.
So yesterday I found my S4 Active again and I remembered it having problems booting up and being stuck in a boot loop. So I powered it on and it worked fine (exept for the lower halve of the touch screen not working, but I think that's another Problem). So I took out the battery. A couple of hours later I tried turning it on again, but this time I had the same Boot loop. When I insert the battery nothing happens (so no stuck Power Button). If I then press the power button it turns on. After the Samsung Logo it goes black for a while but the Backlight is on. After this it shuts down then turns on again but only for a short Moment (no Samsung Logo visible but it vibrates). Then it turns off again and turns on again and flashes the Samsung logo and so on. If I try to Boot into Recovery mode, sometimes it enters Recovery for a second and then turns off and on again but most of the time it just turns of after the Samsung logo and shows the same behaviour as described above.
I am able to enter Download Mode though. If I go into it and press down (to Abort Download Mode) it goes into Boot loop. If I press volume up I am able to flash through Odin ( I did this to flash the stock Rom 5.0.1 again, but it did not help at all). I also noticed that if I attach the phone via usb to the computer but no battery is inserted, the Backlight flashes every 2 seconds or so.
So does this look like a Hardware defect or is there any hope for me.
Thanks

no download mode & no recovery mode

hi all
my note 5 stuck on Samsung Galaxy Note 5 logo
and i can't turn it off
and i can't boot into recovery mode
and i can't boot into download mode
I tried ( vol+ home power ) & ( vol- home power )
nothing worked
any can help please!
similar issue.
Constant boot loop, cannot turn it off. Can access boot options, even using the shutdown from that menu fails and returns to boot loop.
The notification led is on at max brightness, not flashing, just on. Won't turn off.
I DID manage to get to Odin (holding Vol Up, Home, Power, does not work every time), was able to successfully flash the stock firmware. (Which I was already on, Verizon Note 5 so no custom roms for me), didn't help. Once it finished right back to infinite boot loop, with no recovery mode or ability to turn it off.

Bootloop, help!

After flashing AEX ROM phone hangs on boot screen. I can't force it to shut down, I have to wait until battery drains. Then I connect the charger, phone immediately boots up, here we go again...
I can't use newflasher.
Brick?
Use Sony Emma.
My phone is also bootlooped after i failed to flash the software.
I don't remember but maybe hold volume up and power button and the phone vibrates 3 or 4 times and after turning off.
Brick is not likely. Plug the phone into a PC, hold power button and up volume until it vibrates then hold the volume up until the blue led shows, meaning you entered fastboot mode. Then open a terminal for adb, wipe with fastboot commands and flash another rom of your choice.
I can flash zip using fastboot??
Code:
fastboot flash system rom.zip
Somehow key combo worked and I got into twrp and flashed rom

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