So what is the difference between the fast boot mode (settings-> power) and normal boot? Will having cwm cause issues? Other issues?
Using Fastboot doesn't shut your phone down completely when you power off. Think of it as hibernate for a PC. This allows the phone to boot up quicker from being powered off.
If you leave fastboot on you need to pull the battery (to power it off completely) in order to boot into the bootloader, hence the possibility of it causing a problem with certain apps. I hardly ever power my phone down and I hate pulling my battery so I leave it off.
Related
Here's what I'm looking at. I just flashed SuperJelly and the device goes into a bootloop. Since it's a new ROM, ADB is disabled, and I can't simulate a battery pull because it restarts rather than shutting down (eliminating my ability to access the bootloader). S-OFF'd with LazyPanda. I'm stuck.
Update: No longer bootlooping, now it's frozen on the boot animation.
Update: After repeated attempts, I was able to open the bootloader (although I'm still not sure how I did it.) MOD's, please delete thread.
If your s-on you have to flash the kernel separately either try fast-food or flashed image gui
Sent from my EVO using xda premium
For future reference, pressing and holding the power button, waiting for the cap lights to stop blinking, and then when the screen back, letting go of power and holding down Volume Down will bring you to the bootloader. It doesn't matter if you are booting, in Android, stuck, frozen, blackscreen, whatever; as long as you have even 1% battery power you will be able to use that hard coded shortcut. It's similar to how pressing and holding the power button on a laptop will forcibly shut it off and that function is not related to Windows.
Hello,
Since rooting the phone it will not restart without pulling the battery.
If in Xposed "soft reboot" or "reboot" both turn the phone off and it will not respond to button input to re-start
If pressing power until power off menu comes up and I press reboot, it shuts down and will not re-start until I pull the battery.
If I plug in the power while it is in this state it will not charge or start
Once I pull the battery, it will:
Charge without starting when plugged in
Start with power button press
All else acts normal.
Any ideas? I just hate taking the stupid case off and pulling the battery any time I have to re-start!
I haven't narrowed down what causes it, but I've eliminated a lot of things:
http://forum.xda-developers.com/verizon-lg-g3/general/rebooted-140-times-attempt-to-narrow-t3251949
Just for clarity, it more than likely isn't actually "off", it's rebooting and getting frozen with a black screen. Besides pulling the battery you can also long press the power button (10 seconds?) to force it to turn off, then turn it back on again. I usually just pull the battery too because it's quicker.
Yeah, no the long press doesn't do anything no matter if I leave it pressed for 5 seconds or even 45 seconds (Tried that several times)
Leaving it alone for an hour doesn't do anything. If anything I'm doubting that it turns all the way off rather than gets stuck rebooting. It is absolutely frozen until I pull the battery.
Here are the only things I have found which works to avoid taking the phone apart:
From Quickboot: Power Off (do not reboot, do not soft boot, etc, just power off) (quickly powers down, almost instant)
or
Press and hold power button for menu: Power Off (longer time to power down)
From either of those, the power button turns the phone back on no problem.
No rebooting works.
I have a rooted c8633 and factory reset it yesterday, then battery suddenly dropped from 30% to 0%.
1. After turning it on again, the power button wont work(cant screen on/ off) . But i can still use it to power on or force turn off the phone (power + volume up), so i assume its some software problems but i didnt install any apps i never use before.
2. The battery percentage seems not accurate, sometimes it drops fast but some times its very slow.
Could anyone please help with these problems? Thank you.
Sorry i cant capture any screen because my power button is not working.
Hello
My Kurio TAB 2 got into an infinite boot loop. The battery got completely drained and when plugging the charger it will charge for a minute and then it will try to boot again. Afterward it's off (not enough battery), then again charging for 1 minute and trying again to boot, and so on. Looks like this tablet everytime it's connected to a charging source it will try to boot if turned off...
I had to unsolder the battery and charge it manually. After that tried to get into Recovery mode but it will not work. Every time it will try to boot like when normally switching it on, and after a minute, the screen goes black and then tries to boot again (boot loop). I tried to boot into recovery mode with Volume Down + Power button, then releasing the power button and holding the Volume Down button. Also the same with Volume Up + Power Button. Nothing made a difference. Every time it will just boot in an infinite loop until the batter is drained. To avoid this, I have to always disconnect and then connect back the battery.
Also tried to boot it into recovery mode using ADB tools (with "adb wait-for-device"), but without luck.
One "interesting" thing, is that when connected to the PC and booting (from itself), I can hear the sound of "New device connected" and after 1-2 seconds the disconnected sound. These connect/disconnect sounds will happen twice in the first ~10 seconds of one boot cycle.
The problem started from one day to another. My kid was playing with it as usual and after it was discharged and turned off, I plugged the charger and this loop started.
Would be great if anybody could help or has an idea of what I could still try to fix this.
Thank you!
Hello
I have the same problem here.
Is there already a solution for this?
Hey everyone,
I have an issue with the bike tablet no longer turning on.
Previously, the bike wouldn’t boot past the P boot loader. I got it into fast boot with Power + Volume Up. There, I went to recovery. This presented a screen with an error robot and text “No command.” I powered the device off, planning to go back to fast boot and try something else, but now I can’t get the device to turn on.
I’ve tried
- holding the power button for extended periods of time
- holding the power button + volume up for an extended period of time
- directly connecting the power to the monitor
- unplugging for several hours to let batteries and capacitors drain
- using adb. Adb does not see the device, though windows device manager does recognize something is connected via usb
Ultimately, the screen is a large Android tablet so hoping someone could help out. Any suggestions?