Sony Xperia ZL (C6506) stuck in boot loop - please help! - Sony Xperia ZL

The phone belongs to my GF so I'm not aware of any apps that may have been installed that could cause this issue, but she generally sticks with things from the Play store, unless I give her an apk.
I'll try to be as descriptive as I can, but since it's not my phone I may not be entirely aware of some of the more technical aspects since I can't boot it up.
Phone basics
Model: Xperia ZL (C6506)
Bootloader: Locked...AFAIK anyway - phone belonged to my sister who is not tech savvy and gave it used to my GF when her Moto Droid RAZR XT910 (which was my old phone) broke.
Rooted: No (AFAIK, same reason as above)
SIM/carrier unlocked: Yes (I did this at least 3 months ago)
Carrier: Rogers Canada
Plan: PayGo (if that matters)
Here's the story:
A couple of weeks ago she decided to do a factory reset because the phone seemed like it was getting bogged down. After that, her data connection wasn't working, so she contacted Rogers who apparently sent a refresh signal. That didn't work, so she contacted them again last week and they sent another refresh. That still didn't work so she called again this past Monday (Feb 15) and they walked her through resetting the APN; because the phone was unlocked, it didn't automatically pick up Rogers' APN settings, even with her SIM inserted.
However, a mere 2 hours after she was walked through the APN settings, her phone began a boot loop. Every time it boots up it goes through the splash screen then "Android is optimizing apps" then it sometimes gets to the home screen, freezes/hangs, and reboots. It will do the boot sequence running on battery, so I don't think that's the issue.
Bootloader is locked and phone is not rooted and there is no custom recovery (i.e. TWRP) but I was under the distinct impression that Android has a built-in recovery module anyway so I've Googled and tried every possible combination I have known and found to try to boot into it:
Shut off phone, hold Vol- & Power to boot up
Shut off phone, hold Vol- & Vol+ & Power to boot
Shut off phone, hold Vol- & Home button (not hardware, softkey so I hold where it would be) & Power to boot up
Shut off phone, hold Vol- & Vol+ Home button & Power to boot up
Shut off phone, hold Vol+ & Home button & Power to boot up
Turn on phone, wait for pink (or other colour) LED to turn on then hold Vol- (no LED comes on at beginning of boot as far as I can tell)
None of the above methods have given me access to a recovery menu. I've downloaded the Sony Flashtool (Emma) in order to try to flash a stock ROM/firmware but it seems that I can't use it without a registered account and account registration appears to be manually approved by Sony (I'm thinking they limit it to authorized retailers and repair shops?) so that seems to be a dead end.
I downloaded the PC Companion and was able to get it to recognize the phone and perform a repair/update (by holding the flash key, Vol-, and plugging it in while the updater was running, as it instructs to do).
I've done the repair/update twice now. Each time it says it succeeds (update to 10.something, sorry can't recall specifically), then when I boot up the "new phone setup" starts but hangs/freezes and the boot loop starts all over again.
I'm out of ideas...please help!

Related

Newbie help. debug mode, bootloader

i received my new htc one x on o2 network yesterday, after years of been a die hard symbian fan i have made the move to android now,
im having trouble booting the device into bootloader mode, i am pressing the down volume holding it in and pressing the power button, but the device boots as normal.
i want to get the device routed as there are a few apps i want that dont work as it stands
Have you turned off Fast boot (Settings > Power)? While that's turned on your phone doesn't fully power off, just hibernates, and it needs to be fully off to boot into the bootloader.
have now ad guess what it works ill try follow the instructions see it i get stuckagain
sorted thanks bootloader unlocked

-solved-

Is it hard-bricked (after flash attemp)?
With the recent ICS ROM release, I followed the posted instructions with my noob attempt at flashing ICS for the lt28i (not att). I got ICS on but after flashing GB 6.0.F.0.111 Firmware (the baseband only), the phone showed Sony logo a few times and went to a greyish screen (like it is still on?). The USB connection no longer works and I couldn't charge or force shutdown (power+volume up). So it is hard-bricked?
Try to hard reset your phone -power and volume up -hold until it vibrates.Then try to shut the phone and put into flash mode - volume down first and then usb
Sent from my LT28h using xda app-developers app
That was one of the first thing I tried, no respond no matter how long I held it.
Try another cable first. Then see if you can get out back in flash mode.
Sent from Rooted LT28at with ICS.
1. Press and hold both the volume up key and the power key for five seconds.
2. After your phone vibrates once, release the keys. The phone restarts automatically.
To force a phone shutdown
1. Press and hold both the volume up key and the power key for 10 seconds.
2. After your phone vibrates three times, release the keys. The phone turns off automatically.
Sent from my LT28at
KEB64 said:
1. Press and hold both the volume up key and the power key for five seconds.
2. After your phone vibrates once, release the keys. The phone restarts automatically.
To force a phone shutdown
1. Press and hold both the volume up key and the power key for 10 seconds.
2. After your phone vibrates three times, release the keys. The phone turns off automatically.
Sent from my LT28at
Click to expand...
Click to collapse
I think he's said he tried this and got no response from his phone. Based on that I'm guessing his phone is dead and can't get it to charge. Perhaps the cable is bad, it happens, at least you can rule it out.
Sent from Rooted LT28at with ICS.
jeriku said:
I think he's said he tried this and got no response from his phone. Based on that I'm guessing his phone is dead and can't get it to charge. Perhaps the cable is bad, it happens, at least you can rule it out.
Sent from Rooted LT28at with ICS.
Click to expand...
Click to collapse
I detailed it out to help differentiate between a restart and a forced shutdown.
Sent from my LT28at
Hard reset/force shutdown didn't work for me
I tried to recharge the battery with a wall charger, and the screen powered off in around an hour and the red led turned on after another hour or so.
But the phone now couldn't power on and still not responding to USB connection or hard reset (the red led is still on whenever I plug in the charger or an USB port though)
EDIT: I got some respond, the phone now powered on by itself and keep on resetting at the Sony logo (stuck in bootloader?).
When I plugged it into the charger, didn't get the red led like usual, but when I plugged it into the USB port, the pc tried to detect the phone, but couldn't since the phone kept resetting.
Got some vibration for trying to hard reset (1) and force shutdown (3), but those didn't work as the phone powered on and reset by itself
I know it's not much help at this point but weren't you supposed to not flash the ics baseband and leave that gb file there? It sounds like your just stuck in a boot loop (soft brick) so something should get you back to working. Just be careful what instructions you follow next.
Sent from my LT28at
My wild guess you flash with a low battery (or when the boot loop happened, it killed the battery). I don't think the phone can turn on by itself without a human touch. Reading your post - look like there was an error while you flash baseband. My suggestion:
1. If you still see the Sony logo, hold volumn up then hold power button until you fell the vibration. The phone will shutoff. Or if the phone off (black screen) - plugin the wall let it charge for at least 2 hrs. Don't do anything with the phone.
2. Reflash LT28i firmware, run flashtool on your computer (keep all wipes checked) until it ask for 'turn off phone and put in flashmode. Then hold down volumn down plugin the USB. This should revise your phone back to GB. After done, unplug and turn it on. You can setup anything you want or do it later. Make sure charge the phone again if battery is under 50%.
3. Flash ICS LT28h, run flashtool - uncheck all wipes and check 'exclude baseband'. Until it ask for phone in flashmode. Turn off phone, hold down volumn down plugin the usb. This should flash ICS to your phone. Unplug turn on and setup if you haven't done so.
Good luck.
Sent from my Sony Xperia™ Ion - ICS & Rooted
Got the phone to stay in flash mode instead of reboot after constantly trying to put it into flashmode.
Got ICS but back to the initial LTE issue which messed it up in the first place.
Thanks for all the advices.
kulimkan said:
Got the phone to stay in flash mode instead of reboot after constantly trying to put it into flashmode.
Got ICS but back to the initial LTE issue which messed it up in the first place.
Thanks for all the advices.
Click to expand...
Click to collapse
The LTE issue is because you didn't read. Get a generic GB and use flash tool. Dont wipe, uncheck all the "Exclude" boxes EXCEPT exclude baseband. Flash and restart.
"Flash the Gingerbread 6.0.F.0.111 Firmware excluding everything except baseband and do not wipe data. This will give you ICS with LTE."
http://forum.xda-developers.com/showpost.php?p=28302842&postcount=1
I like a newb wiped and got a fatal error. I am going through the steps posted but am thinking I may have just bricked this thing. Not sure what to try from here as I am not getting much response from my device at all.
joe3681 said:
The LTE issue is because you didn't read. Get a generic GB and use flash tool. Dont wipe, uncheck all the "Exclude" boxes EXCEPT exclude baseband. Flash and restart.
"Flash the Gingerbread 6.0.F.0.111 Firmware excluding everything except baseband and do not wipe data. This will give you ICS with LTE."
http://forum.xda-developers.com/showpost.php?p=28302842&postcount=1
Click to expand...
Click to collapse
That was the guide I followed actually.
At my second attempt (all unchecked except baseband), the phone powered on but got a lot of 'Sorry!' messages as some of the processes failed.
When I checked the phone stat, it went back to GB lt28i.
@zackspeed
try to charge the phone for a few hours and see if the red led turn on (at least that what I did to get some responds from my phone)
So I also had the phone come back to the Sony splash loop on its own. Will the phone continue to charge while its doing that??? I have a red light again and now just playing the waiting game I guess.
KEB64 said:
1. Press and hold both the volume up key and the power key for five seconds.
2. After your phone vibrates once, release the keys. The phone restarts automatically.
To force a phone shutdown
1. Press and hold both the volume up key and the power key for 10 seconds.
2. After your phone vibrates three times, release the keys. The phone turns off automatically.
Sent from my LT28at
Click to expand...
Click to collapse
It works friend thz

[Q] Stuck in boot loop BUT I wasn't even trying to root or flash

Hi All.
Phone details:
1. It is the first HTC One X (International version) from 2012 bought in India. It is not rooted. So I have everything official.
Problem:
1. I had low battery and my phone was exposed to some moisture. I had put it to charge.
I opened browser and the screen flickered, phone rebooted and now it is stuck in reboot loop.
2. While the phone reboots, if I press just the Volume Down button, I can see HBOOT menu. This makes me suspect that somehow the phone thinks that Power button is pressed although I don't press it.
3. I took it to a shop for repair. He said that there is no issue with buttons, motherboard is gone.
What I tried:
1. I tried selecting Factory Reset and Recovery from HBOOT menu. But before anything can work, phone simply reboots.
Question:
1. I am able to see the HBOOT menu and even select options. Is this possible for a phone whose Motherboard is dead?
2. Is there any way I can save my phone without having to change Motherboard? Like, some minor short-circuit that makes the phone believe that power button is being constantly held down etc.
Thanks in advance.
-Amit

LG G4 Safe Mode will not power on

First off, I have the Canadian LG G4 H812 which I bought back in July of 2015 from Rogers.
So, today I got a software update on my device in my notifications, which I am guessing was the Marshmallow update, and proceeded to ignore it while I was doing some work in an app. My phone then randomly restarted/crashed and kept restarting again and again, which I assumed was the bootloop issue everyone seemed to be having. I then took out my battery and put it back in the phone hoping that might solve the issue. The phone now would load the lock screen but then restart again as soon as I tried entering my knock code. So, I opened up the power menu and held the power off button to access the safe mode boot option and selected boot into safe mode.
After selecting boot into safe mode, my phone has become completely unresponsive and will not turn on. I have tried holding the power button down, doing a hard reset and charging the phone but nothing seems to make the phone turn on or give any kind of responsive.
ANY help you can give me is greatly appreciated. I don't want to send in the phone for repairs as I am apparently no longer under warranty since I got the phone unlocked from the carrier.

Note II GT-N7100 Not Turning On at all

Hello Everyone!
First of all, let me say that i'm desperately in need of help with my phone. Here's what happened to it so everyone knows.
My Phone was bought in UAE and was given to me, i live in the Philippines and it was working fine, i can use it on everyday tasks Until, a few days ago my phone performed updates (auto updates) which made it froze, i tried to press and hold the power button but it doesn't turn off. I removed the battery and restarted my phone then all i get is the Boot screen. I went to recovery mode to perform a wipe/factory reset. it returned with a lot of errors about files missing, etc etc...
At that point i thought that my phone might have been updating the OS when it froze so i DLed a stock firmware because i can still go to download mode.
After a day (crappy internet + limited download speed from sammobile) i finished the firmware download then tried going to download mode on my phone but now, my phone doesnt turn on at all. when i press and hold power+down vol+home nothing happens. i tried going back to recovery mode and still nothing happens. Even if i just press the power key nothing happens at all. I tried charging the phone but its not charging as well, The Battery Icon is not showing on the screen anymore but after minutes f charging i can feel my phone getting warmer.
Anyone experienced this issue before or knows how to fix it? i do not believe that the battery died because it was working just a day before.
Any help and TIPS would greatly help.
again: I cannot go to download/recovery mode nor go to the boot screen.
Hello there,
Try to connect your phone to PC and press power button / vol / home button simultaneously, if PC still recognize your phone, then you still got chance to recover it using Octoplus software?

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