[Q] Lenovo P780 enters Boot Loop after Factory Reset - Android Q&A, Help & Troubleshooting

From couple of days ago I started to get popups saying "android ____ .com" or something and every time I clicked OK the message would pop up again not letting me press anything but the OK button continuesly.. so I powered off the phone
I powered back up again and my phone wouldn't boot anymore. The screen said "Encryption Unsuccessful" and then there was a "Factory Reset" button right below - nothing happens when I clicked it
So I went on and performed a factory reset by entering recovery mode (power button + volume up + volume down) and after it didn't work I went back to recovery mode and tried "clear cache" which didn't work so I then went to factory mode (power button + volume up) and cleared data by selecting MMC or something (it was in chinese)
What happens next is, the phone enters a boot loop. It boots, shows the Lenovo logo, then turns off, then boots again, Lenovo logo, turns off, and so on. I wasn't even able to turn off the phone so I clicked that red reset button at the back
I didn't try removing the battery or SD card
How do I go from here?

Related

Restart Loop

I can't post this in the development forum, so I am posting it here.
I followed these directions: http://briefmobile.com/atrix-4g-rom-installation-guide from this thread: http://forum.xda-developers.com/showthread.php?t=991595
Now my phone is in a restart loop. It will load the red Motorola logo, then the green Motorola label, gets into the "setup your phone" screens, then it waits approximately 60 seconds and restarts. I can't make it stop and I can't figure out how to access the CWM recovery from the powerbutton + volume button combinations to try and reflash.
Can anyone help me?
Thanks!
Make sure you're plugged in to use CWM
If you cant get into it, you should be able to get into RSD mode and flash a fresh 1.83 sbf
or get into standard recovery and wipe data/factory rest
Thanks for your input - it did help!
For anyone else that finds this thread, here is what I did to fix my phone (more or less):
Removed battery
Put battery back in
Held "volume down" button until "fast boot" appeared on the screen
scrolled (via volume down - NOT volume up) to "Android Recovery"
Pressed the Volume Up Button to "click" it
Waited for it to load and touched the bottom right hand corner of the screen (hidden button that toggles showing/hiding all of the menus)
Used that to clear cache and userdata
Restarted
Phone worked!
I couldn't get RSD mode to work, though, but this method did work.

Recovery/bootloader/factory reset isnt working

Hello, I have a problem with my phone (Z5S Nubia Mini). When I want to turn on the phone, i have to push it for like 5s, then the phone starts (sometimes it vibrates for few times). But my problem is, that I CAN NOT get into recovery or bootloader, also i cant do factory reset via settings. When I select "recovery" (or restart or bootloader) in restart menu, the phone just turn off. When I hold VOL UP+POWER, the phone vibrates for few times, then the white screen with orange chinese text shows up, I still hold VOL UP+POWER, then it turns off again. When I tried to do factory reset via settings nothing happened, nothing was restored/uninstalled. Can you help me with this, please?
I tried to hold POWER+VOL UP+HOME and after the phone vibrates hold VOL UP+HOME only, but the phone stuck on white screen with chinese text (something like "wo")

Help: Can't factory reset t-mobile Galaxy S6 Edge

Hello,
My wife just bought a Galaxy S6 from a friend of her and we are trying to factory reset it.
If we do it from the menu the phone just turns off and when we turn it on again all the data is still there.
If we try using the keys before turning it on (volume up + power + home) after it turns on and we are holding the keys the capacitive keys leds start flashing like crazy and the phone doesn't turn on again after a while.
Any one knows what we can do to factory reset this phone?
sorry, just noticed there is a different forum for the t-mobile version
So you did try recovery mode, but it did not work? That's strange! When phone is turned off, press Volume up + Power + Home button and hold them until you see recovery screen (Android bot on cyan background). Then recovery menu will pop up (sometimes it can take a while for it to be shown). From there do the factory reset and wipe cache. But it seems you already tried it...
Tenhi said:
So you did try recovery mode, but it did not work? That's strange! When phone is turned off, press Volume up + Power + Home button and hold them until you see recovery screen (Android bot on cyan background). Then recovery menu will pop up (sometimes it can take a while for it to be shown). From there do the factory reset and wipe cache. But it seems you already tried it...
Click to expand...
Click to collapse
actually after posting this I noticed recovery mode was working but the display turns off while in recovery mode, I had to press the keys necessary for factory reset with a blank screen it worked and I got it to factory reset but recovery mode stills show and empty (off) display
Weird as hell =P
renatofontes said:
actually after posting this I noticed recovery mode was working but the display turns off while in recovery mode, I had to press the keys necessary for factory reset with a blank screen it worked and I got it to factory reset but recovery mode stills show and empty (off) display
Weird as hell =P
Click to expand...
Click to collapse
probably screen time off is enable

Hardreset not working

Hey guys ! my phone is not switching on. When i press the power on button, the samsung logo keeps on appearing but doesnt show the home screen. Also when i try to switch it off, it doesn't. So i remove the battery to turn it off :silly:
I tried the Hard reset option by pressing Volume up + Select + Power on button. The reset window appeared. First i selected the factory reset option and then the reboot option. But it still didn't help. Even after rebooting the phone , the samsung logo keeps on appearing instead of showing the home screen.
Note : Its not a rooted phone.
Please Help

I can't factory reset HTC Desire 610

Hello,
this is my dad's phone and it started rebooting by itself. When phone boots you can use it for 30 seconds and then it reboots again. I tried to factory reset from settings but nothing happens when I press ok on the last menu. So i tried opening menu when phone is booting (power button + volume down) and selecting factory reset with power button. Phone then showes red triangle with exclamation mark. After 2 minutes phone reboots itself without doing factory reset.

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