[help] clarification needed with the different combinations of buttons during boot. - Xperia Z Q&A, Help & Troubleshooting

I have an xperia z with unlocked bootloader and recently flashed a customised 5.1.1 rom, observing that the phone was overheating abnormally (60°c with only a few apps running) I thought a wipe and reset would help me, so got into recovery (twrp) wiped data and cache without touching internal.
Once done I dint see it telling me that SuperSU is missing and accidentally skipped it (I already have root) . The phone started rebooting and went blank. I think the only option is to flash stock again but I wanted a clarification on the use of buttons..
Vol+ + power restarts it again to the blank screen.
Vol- + power or vol+ + power to start the phone again lands me to blank screen after logo
Now to turn it off again Im holding all the three buttons, it vibrates once and reboots if I leave , if I still hold it after one vibration, it now vibrates three times and turns off.
Can anyone explain what exactly are these vibes in the last point , is it kind of a reset , can it help me any way in the future? (I'm still a noob, I just follow the instructions and have used a lots of roms on lots of phones)
I'm soooo sorry for making it a long story, its my first question..

Welcome
Because XZ doesn't have removable battery buttons combination is kinda way of pulling battery out. You only hold power button and volume up together, first vibration is rebooting device, and if you hold little more until you feel 3 vibrations it's power off, as you find out your self.
All the Best.
Sent from my D2303 using Tapatalk

Oh thank you
So I don't have to be further trying to mess with the buttons and just flash a fresh rom. Thanks

Related

[Q] Problem booting into Recovery

So.... Been playing with this for the last two days trying to root this phone.
I've rooted a few other phones, so I do have experience with the overall process, but I am unable to even boot this phone into Recovery. I have tried booting into recovery by holding down both volume buttons + power and from adb terminal "adb reboot recovery."
Neither method works. The phone will boot (or reboot from adb) and brings up the "at&t World Phone" screen and then nothing else appears. The first time I tried this it actually wouldn't boot up even after pulling the battery and trying to start normally, it still sat at the same screen. I let it sit all day today at the screen until the battery died. I was finally able to get it to boot up earlier.
If anyone can help, that'd be greatly appreciated. Let me know what info I need to add.
I usually just press and hold both volume buttons and power then release just the power button and keeping the volume buttons still pushed on the 2nd time the white at&t screen pops up... Works for me every time.
Sent from my SAMSUNG-SGH-I897 using XDA App
hold volume up+down and power key btw this is wrong section to post supposed to be in general
Oh sorry, didn't realize it was supposed to be posted in general.
I've tried the Volume Up/Down + Power and this does not work, as I stated originally.
I've also tried to do it from the adb shell, which also does not work.
Does anyone have any idea why I can't access recovery?
I"m having a similar issue. Holding volume up+down and power and releasing in any combination just boots the phone up. If I just hold volume up+down and power the phone alternates between the AT&T World Phone screen endless.
Yes u have to let go of the pwr button when the phone screen turns on
Sent from my SAMSUNG-SGH-I897 using XDA App
I've tried just about every combination of the Volume Up/Down + Power and no luck.
I've also tried the following ADB commands, with no luck, it just reboots the phone:
adb reboot recovery
adb reboot-boatloader
When I hold Volume Down + Power I get the a Yellow Triangle with a Android guy with a shove with the text "Downloading... Do not turn off Target!!!"
When I hold Volume Up + Power I get an Android guy with the following text: "POWER RESET or UNKNOWN UPLOAD MODE"
For kicks, I tried to to flash a rooted update.zip via the Volume Down + Power way with the Samsung update software, the same way I have done with the Samsung Moment. Wasn't sure if it'd work, but worth a try.
Any one else have any ideas or suggestions?
Phishie, do you have a final release version? Or anything special about the phone you have?
I just press the two volume buttons first (to make sure theyre pressed before you hit power), then press the power button, as soon as the screen turns on, I let go of everything and it works just fine, no need to have ridiculously complicated instructions.
The trick is to make sure both volume buttons are pressed BEFORE you hit power. Then release. Easy as pie
Also, if you guys are having too much trouble, just download the one click root/unroot. It will run, boot your phone into recovery, then all you have to do is scroll to install packages with volume key and hit power. Done.
Trust me, I am making sure I'm pretty the keys completely. I've literally tried it fifty times by now.
And I've also tried the One Click Root. This does not boot the phone into recovery either. It just sits at the AT&T World Phone screen forever and will actually get stuck here and will not boot up normal even by pulling the battery and powering it back up. It'll just get stuck at the for-mentioned screen. I have to connect it to adb and reboot it there to get it out of the loop it's stuck in.
that doesnt sound good. Maybe you need to try a factory reset? are you running stock rom and everything?
When I first got the phone I did a factory reset.
Yea, it's completely stock to my knowledge. But I have a different ROM than the final release version that everyone else has. This is a pre-production device.
same problem
I try all the combos as well, no luck, would the combos be different for 2e vs 3e recovery?
I try combo, it powers on, the same thing happens, the at-t comes up, goes for a second, then screen brightens, wait a bit and then the home row buttons light up, hangs there... doesnt matter which kernel or which rom I flash, same thing, adb and other stuff wont work as they need usb debugging enabled, which mine isn't.
Is there a way to mod the phone files and flash to enable usb debugging? Anyway to remap the buttons to 2 button vs 3 button?
Everyone post your methods for entering recovery please?

[Q] how to enter stock recovery in JB

Hi all,
My phone is EU retail, locked, unrooted. I updated from ICS to JB via manual download of the update and installation via SD card as explained in one of the more popular threads here. Now after the JB update, I want to enter recovery in order to clear the cache.
With ICS, I was perfectly capable to enter the stock recovery. Press power + vol. down for a few seconds, and the (fastboot?) menu appreaed where I could select recovery. Then the dead robot shows up, I pressu vol. up + vol. down and I had the expected options. Now on JB however, this does not work. It does not matter how long i hold power + vol.down, it always boots the system. When I press power + vol. down and keep holding the two buttons, the green LED goes on and off, then the phone vibrates, showes the red M and seemingly starts to boot. Then the screen goes off and it repeats the 3 steps (LED, vibrate, red M) but then goes on to boot up the system...
Is this supposed to happen?
Same here. It looks like there is no Recovery installed at all, so will try to flash one tonight.
Sent from my XT890 using xda app-developers app
I'm new to Motorola so need to ask...what is this stock recovery for? Is it the same as a typical 'custom recovery'? I've never heard of a manufacturer putting on in their ROM...so can I do a normal backup of a ROM or no? Thanks
AW: [Q] how to enter stock recovery in JB
http://forum.xda-developers.com/showthread.php?p=37784402
Sent from my BataKanged XT910
HSD-Pilot said:
http://forum.xda-developers.com/showthread.php?p=37784402
Sent from my BataKanged XT910
Click to expand...
Click to collapse
Thanks, this releasing of the power button while still holding vol. down works reliable to get into fastboot. However, when I select recovery, the screen goes black? Something is not quite right with my phone...
Edit: I seem to get the hang of it. Now I finally get into recovery. When I select it from the fastboot menu, the screen gets black for a couple of seconds and then the dead robot appears. To get the options in recovery, I press both vol up + down at the same time twice. Initially, the layout in recovery is broken up. Just two blue lines at the top and a few characters in green at the left border. Once I press any of the volume buttons, the options finally appear.
Hmm I have not gotten into recovery on JB even once...can't get in.
help please!!
i have de same problem
when i push power button, the green led turns on for a few seconds and then the phone get off... i can not enter into recovery mode either
anyone know how to fix it or fix it already
thanks!! :crying:
The above tip doesn't work for me - either my timing is wrong or I don't understand the instuctions.
Someone else kindly explained it differently and eventually I got it working. That was posted in some other thread and I don't think it was directly related to recovery - I can't even find that post now!
I have found people saying they've got root on the RAZR M on locked bootloader Jelly Bean...but you need to access stock recovery which I can't do now.
SharpnShiny said:
... That was posted in some other thread and I don't think it was directly related to recovery - I can't even find that post now!
Click to expand...
Click to collapse
Do you mean this post?
http://forum.xda-developers.com/showthread.php?p=37784402#post37784402
That's the original post...I don't fully understand it.
I am grateful to that poster for trying help people - so I don't want to be misunderstood! :good:
If I were to describe the boot process to someone, nothing 'vibrates' - so I don't understand that. My phone doesn't vibrate when boot begins, and no 'i' vibrates either. Also, there are two 'i's. There is the i in Intel and in Inside. I'm guessing it's the first i. Believe me, I have tried 10 combinations like 50 times. I know it can be done, but can't do it using that post.
Nope, someone else explained it differently and I got it the first time. It wasn't a recovery thread so it's hard to find now.
Your Razr does not vibrate after boot? This is strange. Ok, let me try to describe the process based on my Razr i. (As simple as possible)
1. The mobile is turned off
2. Press and hold the Vol- button
3. Now press and hold the Power button and observe the green light. It turns on at the same time I press the Power button. The green light is on for approx. 2 seconds than it turns off.
4. Just at the moment when the green light turns off my Razr vibrates twice within 1 second.
5. I need to release the Power button before the 2. vibration and at least 0,5 seconds later the Vol- button. This is the point to get in the fast boot menu.
Without any vibration you should try to release the Power button just at the moment when the green light turns off - followed by releasing the Vol- button 0,5 seconds later.
-AdMiRaL- said:
Your Razr does not vibrate after boot? This is strange. Ok, let me try to describe the process based on my Razr i. (As simple as possible)
1. The mobile is turned off
2. Press and hold the Vol- button
3. Now press and hold the Power button and observe the green light. It turns on at the same time I press the Power button. The green light is on for approx. 2 seconds than it turns off.
4. Just at the moment when the green light turns off my Razr vibrates twice within 1 second.
5. I need to release the Power button before the 2. vibration and at least 0,5 seconds later the Vol- button. This is the point to get in the fast boot menu.
Without any vibration you should try to release the Power button just at the moment when the green light turns off - followed by releasing the Vol- button 0,5 seconds later.
Click to expand...
Click to collapse
CHAMPION!!!! I understand that perfectly and it worked first time!!! :laugh: :victory: :good:
I'm saving that on a file on my desktop. Chaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaampion!!
SharpnShiny said:
CHAMPION!!!! I understand that perfectly and it worked first time!!! :laugh: :victory: :good:
I'm saving that on a file on my desktop. Chaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaampion!!
Click to expand...
Click to collapse
It was my pleasure to help you.
iam havin galaxy s3 mini and it is locked because of too many pattern tries and i dno m google a/c nor youtube. i tried bypassing it but couldnt!! atlast i thought of reset by entering recovery. bt wen i tried(power buttn+menu+vol up) it doesnt enter recovery!! i tried again still no gain. i kept holding fo few seconds it showd samsung logo and thn vibrate and again screen got off again logo...i released buttons, thn phone got ON. but didnt enter recovery mode
any help?? i want to reset my phone because its locked..
Sent from my GT-S5830i using xda app-developers app
sect0r8 said:
iam havin galaxy s3 mini and it is locked because of too many pattern tries and i dno m google a/c nor youtube. i tried bypassing it but couldnt!! atlast i thought of reset by entering recovery. bt wen i tried(power buttn+menu+vol up) it doesnt enter recovery!! i tried again still no gain. i kept holding fo few seconds it showd samsung logo and thn vibrate and again screen got off again logo...i released buttons, thn phone got ON. but didnt enter recovery mode
any help?? i want to reset my phone because its locked..
Sent from my GT-S5830i using xda app-developers app
Click to expand...
Click to collapse
Why did you post in Razr i forum? Wouldn'd it be more effective to post in Galaxy S3 mini forum?
http://forum.xda-developers.com/forumdisplay.php?f=1831

Hard reset/reboot won't work

I have seen and read many tutorials and guides on how to hard reboot my htc one, non work..
I tried to flash a rom on my One, and just when it done flashing and I pressed next just to reboot, the device freezed..
I triead hard reset by holding the vol- & power buttons but instead of rebooting the touch buttons (home & back buttons) start to flicker, and when I stop holding the buttons it stops flicker as well..
It also flicker if i only press and hold the power button..
This happens also when the device works perfectly fine, when i was on the stock rom with locked bootloader - instead of hard reset the buttons fliker..
I tried the command in the cmd and the allinone kit to get to recovery, nothing helped..
Right now in waiting for the battery to run out of juice and i hope it will fix the problem..
I just cant understand how i found only one guy with the same problem on the internet, and he solved it by waiting for the phone to run out of battery..
Arent there any answer to this situation
I appritiate any comments
Find a bright light. Hold phone under bright light. Hold power button. Buttons will flash. Phone will shut off.
adb reboot

[Q] Sprint HTC ONE stuck on white boot screen

Hello,
I've just installed this ROM after wiping Cache/Delvik Cache and system wipe.
Now the phone is stuck on the boot screen and I can not get back into recovery to sort it out.
I held down power & vol+ buttons to get into recovery but nothing happens. The Home & Back buttons flash after 3 seconds then nothing happens.
Any thing else I should do to get into recovery ( TWRP)
My friend whop is a member asked this question on the Developers forum and so far no luck.
we have tried the following:
This is suggested by chogardjr: Plug your phone in to charge. Don't use a USB port for power. After you plug it in try the hard reboot again.
PLEASE HELP
Just for the sake of testing... Have him hold power without holding the volume. It should force reboot, not to the bootloader, so he can get a feel for how the reboot works. It can be finicky during a bootloop cause there are processes trying to run in the background. But it should do it if you hold power long enough.
Edit:
Also find out if the charge light comes on when he plus it in.
Tried and no joy.......
rking786 said:
Hello,
I've just installed this ROM after wiping Cache/Delvik Cache and system wipe.
Now the phone is stuck on the boot screen and I can not get back into recovery to sort it out.
I held down power & vol+ buttons to get into recovery but nothing happens. The Home & Back buttons flash after 3 seconds then nothing happens.
Any thing else I should do to get into recovery ( TWRP)
My friend whop is a member asked this question on the Developers forum and so far no luck.
we have tried the following:
This is suggested by chogardjr: Plug your phone in to charge. Don't use a USB port for power. After you plug it in try the hard reboot again.
PLEASE HELP
Just for the sake of testing... Have him hold power without holding the volume. It should force reboot, not to the bootloader, so he can get a feel for how the reboot works. It can be finicky during a bootloop cause there are processes trying to run in the background. But it should do it if you hold power long enough.
Edit:
Also find out if the charge light comes on when he plus it in.
Tried and no joy.......
Click to expand...
Click to collapse
I had a similar problem with a bad kernel flash and could not get the device to shut all the way off - thats why the keys are blinking. I plugged it in to a charger, left it like that for a few seconds, then unplugged, held it under a bright light and waited. After a few more seconds, it shut all the way down and I was able to boot to recovery in the usual way (power+down). You may have to try combinations or maybe not. But, you won't get to recovery until the phone shuts all the way down. High light under in the 'eyes', plugging and unplugging, and holding the power button for up to 30 seconds are all known ways to do this, but as was said before a bootloop has processes trying to run, so the machine can be 'confused' and have difficulty shutting down. Hope you are successful...
Thanks. I actually got it going with one of the answers posted for me, by powering it off under a bright light.
Sounds daft, but it works.

Black screen, capacitive buttons on

Ok, so here is my problem, I was in twitter and suddenly the phone froze, I press the power button for a while and my screen never turned on again, although I get the capacitive buttons on, at first I heard sounds like the lockscreen, I even somehow got to twrp with the screen off cause my pc recognised it in recovery mode.
I've tried to enter the mode for bricked phones but as I cannot see anything I'm unable, also tried pressing the power button for 20 seconds multiple times, dont know what else to do.
Any idea will be greatly appreciated.
Also, some info on the phone: OOS 4.1, phh roooted, magisk.
It should be press and hold power plus volume down, for around 20 seconds to force a reboot.
Stephen said:
It should be press and hold power plus volume down, for around 20 seconds to force a reboot.
Click to expand...
Click to collapse
Yeah tried that múltiple times to no avail, it was like the screen was not turning on.
I solved it by waiting 1 hour and trying again and suddenly it was working fine
This has happened to me a number of times already. It completely sucks. I boot to a black screen, capacitive buttons work, I can hold power button until I get the Power Off / Reboot menu, and from there reboot, but the screen keeps being on on the system. Recovery works fine, or so it would seem, because a few times, wiping system and reinstalling the OS gives me a "No OS installed. Are you sure you want to boot?" and EVERY time, the only solution ("solution") has been wiping data. It might start happening randomly, maybe updating Franco Kernel, maybe applying a substratum theme, maybe, like just now, after doing NOTHING at all. I don't know what to do anymore.
edit. of course, the hard bricking guide, step 2, works, but step 2 deletes your data, and if i remove the erase userdata lines, it doesn't do anything.

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