Sudden boot loop - Xperia Z1 Q&A, Help & Troubleshooting

In order to simplify stuff I will write it in steps as it happened
1) Phone turned off while listening to yt, most likely battery drain as I didn't pay attention to it and it was low already
2) Tried to turn it on after 3% charge and it started doing application optimization (Phone did this before with no issues)
3) Looked at it again in a few min and phone was turned off
4) Proper charge and turned it on which ended with constant restarts once boot animation was reached
5) Right now it's just stuck on boot animation
Things I tried so far:
1) power and volume down button for safe mode > Keeps repeating the Sony logo and doesn't do anything
2) 2 min restart > nothing happened
3) Flashing it with sony flash tool > phone is locked as bootloader is off (I can't turn it on as I need a turned on phone for that)
Any ideas on how to fix this? Phone is neither rooted, unlocked or whatever, classic factory settings.

Related

[Resolved]Bricked phone or battery problems?

Hello, I'll start with writing all the things i did:
I flashed JenaMIUI v1.29 succesfully then i waited about 30 minutes at the boot image, then I got the battery out, tried again another 10 minutes stuck at the boot image. After that I reflashed JenaMIUI v1.29 wiped data etc...same thing, stuck at boot image, I got the battery out and back in, one time just after turning on the phone ( before the boot image appear). Then I could'nt start the phone in recovery or normal or download mode. After some tries and leaving the phone for a few minutes i managed to start it normally( but still stuck at boot image) , so I wasn't able to get to recovery, one time I managed to power it up with the charger on, it showed a circle 1/4 full and then went to boot image. Now I'm not able to power up the phone at all, I tried getting the battery out and back in several times. When I connect the charger to the phone with no battery in it, it shows a black screen for a second then nothing. I am not able to start it in recovery or any other way. Is this a battery problem or sth like the mother board ? The bin counter is set to 0 (using triange away), can I take it to service ?
One more thing, when i managed to start it normally and was stuck at boot image i pressed all keys(vol up,down,home,power) and went into a black screen saying something with ARM ..idk.
Is this a battery problem or a brick ? What can I do ?
EDIT: I think the problem was caused by pulling out the battery right after powering on the phone, solution...disconnect battery from phone leave it for 10 minutes, hold power button for 30seconds then turn on the phone in download mode and flash stock...that worked for me
Are you stuck on Miui bootanimation?
Now i can't get it to turn on...i tried replacing the battery , but when i press power nothing happens
Edit: I'm pretty sure is battery problems because I pulled out and put in the battery very fast ...
no, never pull out battery while the device is on splash screen. Wait till boot animation at least. In that moment the kernel is being loaded. This is also causing the recovery bug. People get boot-loop and reset their phone by pulling out the battery. It's actually true, it's the same as if you turn off your PC by unplugging it from power cord.
So if the kernel has some problems because i pulled the battery out while it was loading...can I take it to service ? Can they see what ROM I have installed regardless of my 0 bin counter ? Will they give me a new phone or sth ? Will a lie like...I tried to change the grey case with the orange case and the battery fell out while I reseted the phone work ?
EDIT: I managed to "repair" my phone ! I used a method I found on the internet. I hold the power button for 30 seconds ( while the battery was disconnected) and then put the battery in and I managed to get it in download mode and flash stock rom, now everything works great)
Sorry for the inconvenience, i wrongly packed the rom
RageFoxtrot said:
Sorry for the inconvenience, i wrongly packed the rom
Click to expand...
Click to collapse
No problem...i knew the risks I was taking...and as long as everything turned out fine, It's all good.

[Q] Z1 4.4.4 build 154, Stock, lots of issues.

If Anyone can help me I'll really appreciate the tips.
First, My Z1 is completely stock, Android 4.4.4 build 157.
After no apparent reason the following issues started:
1- After depleting the battery, the phone just didn´t charged and a red light blinked 3 times. Solved this out of nowhere, it charged and was running ok
2- when charging the phone while it was on, when the capacity reached 96% the screen forced to be on, even if I hit the off button, it turned back on. I can charge it without a problem with the phone off.
3- If I turn the phone off another problem arises, he starts to boot, shows the Sony logo, turns off, and again, shows the Sony logo.... indefinitely!
Before this issue I was getting around 4h to 5h30min of screen, now I get around 2h.
What I tried to do:
- Hard Reset using the hardware button, didn´t do anything.
- Hard Reset using recovery mode (safe mode), deleted all apps and files from the phone... didn´t change anything.
I Would Like to remain stock, but if the only solution is to root, I don´t mind.
I had all the samsung S line (expect S5) and I've rooted and installed custom rooms in all of them, but in this one, the updates are fast and stable, that's the reason to prefer to stay stock.
STILL SAME ISSUES
I´ve rooted the phone, intalled recovery and wiped the phone... Problem rermains.
Installed a Costum rom... Didn´t solved my issues.
Can someone help?
1. The red lights, they blink when you plug the charger because you have totally drained your battery, so it will blink until you have the minimum amount of power to turn the phone on.
2. Go to settings, dev options and see if "STAY AWAKE" is checked. Uncheck it.
3. Software or hardware issues?
Following my phone problems (while in stock when I turned off my phone it keeps boot looping into the sony logo and the screen stays turned on after 96%, now 90%, while recharging), I've installed the DstrikerZ1Kai rom (LB) and since the problems didn´t disapeer I want to go back to stock.
My question is how? Where's the stock unbranded rom? I've backup the TA files.
The option to stay awake while recharging was off, I've turned it on, 90% and over it turned on, now I've turned it off and will see what happens.
Thanx in advance.
I think you should restore stock firmware and restore TA , then send your phone to sony, i used the 157 update for 2 weeks it only had a battery drain issue.

[Q] Moto G 2014 - boot loop, next step

Hi, got a Moto G 2014, bought from new in October
Always had minor problems with it, especially including touchscreen going fuzzy/unusable when used with a particular charger, at low battery levels (although this isn't the one it was being used with most recently).
Recently apps have been crashing a bit more etc, quite annoying. Cleaned all caches etc today. Thought that there's a decent amount of space on the phone now so should download an app to make more of the phone - downloaded Fifa 15 which is a 1GB install.
Fell asleep during the install, woke up, and the phone was on boot loop. Didn't have a clue what was going on so I just tried to turn it on and off. Vaguely remembered something about power button and volume down, got to fast boot (I think it's called) with the normal boot, recovery etc options, tried both of those and they didn't work.
Put it on a different charger, somehow miraculously it turns up as '15%' charge stage, after a while, which it never did before. Charging now and it's reached 45%, in fairly normal time.
What's my next step? Turn it on? Or is there some way of recovering the files on the phone memory without turning it on?
edit: I mean is there some way of recovering phone files without attempting to turn it on, andd see it go into bootloop again, possibly
okay so turned it on when it had reached 100% battery, and it basically just goes back to boot loop ffs

[Q] XT1068 (Dual Sim) boot looping, recovery unaccessible, bootloader locked

I bought a XT1068 last year and have had no problems with it until this month. I used an anker power pack and almost immediately couldn't turn it on. I was assisted by a member of this forum and had no problems afterwards. However, yesterday I left it charging with the same charger and couldn't turn it on. The problem is that the Motorola logo shows for a few seconds (the flat one that shows at the end of a boot up) and then the phone turns off. So I went into fastboot (power + volume down) and tried to access recovery, the same thing happened. The same happened when I tried to factory reset it. It sometimes will not turn after I try one of these and stays on the Motorola screen indefinitely, for no apparent reason. Throughout this the battery slowly dies, having to be charged twice in 24 hours. And when I try to bootup from fastboot I get stuck on the Motorola screen. I am at loss of what to do and wondered if any of you had an idea?
Adb works from fastboot, but forcing a reboot from the command line produces the same results.
My bootloader is locked, I am running stock 4.4.4 and I am not rooted.

Moto X 2 (2014) Bootloops and restarts on recovery menu

Hello!
I have a XT1097 (that has some battery issues - shutting down at 15%). When I started it while charging it would sometimes enter in bootloop.
Recently I was using it (the battery was low, almost 15%) when it shut down. It entered in bootloop and I couldn't access recovery mode. After the TWRP logo screen it restarts.
After some attempts and after full charges and discharges, I was able to access the TWRP menu. Everything works fine from there.
Yesterday this happened again. I tried a full charge and discharge but nothing happens: still bootloop and I couldn't acccess the TWRP menu.
Have you ever seen anything like that? I wonder if there's any other form of accessing the TWRP menu (via PC or something).
I'm using Lineage OS rom and I didn't notice anything different or strange before this happened.
I've had this happen for over a year now. It's not every time my phone dies, maybe 1 in 100. I've learned how to extract my texts messages then factory reset and start over.
Are you saying if you get to twrp, and click restart from there it'll start properly?!?
You can get out of the bootloop and into bootloader by pressing vol down and power for 20 seconds ish. Sometimes you need to do it multiple times.

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