Xperia Z2 stuck in bootloop with generic android / cyanogen runs without problems.. - Xperia Z2 Q&A, Help & Troubleshooting

Hi, I have a strange problem with my Xerpia Z2..
After flashing a cyanogen mod to test it out.. it`s not possible for me to get a working generic Android system anymore.
The smartphone stuck in a caint of "bootloop" or, if it start android at last, it reboots after a short while automaticly.
The bootloop is like this:
Screen: Shows 10 sec. sony-logo -> than 2 sec. black screen -> than 5 sec. sony-logo -> than it starts from beginning..
The bootloop-lenght varied until it starts finally into android.. sometime it doesn`t come to that point, and it reboots for a very long period (until I get annoyed and shut it down)
I have trying the following things to solve that issue:
- Flashing several stockroms wirh flashtool (D6503_17.1.2.A.0.314_Generic DE.ftf / D6503_23.0.1.A.0.167_Customized DE.ftf)
- trying to reset the hole phone with the xperia "emma" tool
- trying to reset the hole phone with the pc companion software
.. in my opinion, the problem could be find in the bootloader/recovery.. I don`t think it`s a hardware issue, because cyanogen mod is still runs without problems. Maybe some cyanogen remains are still leftover in the bootloader, that don`t work with generic android versions.. that`s what I can imagine. (but i`m not an expert
I don`t get why flashing the phone doesn`t solve the issue., it almost seems that the flash process don`t touch the bootloader, to overwrite it with stock parameters (?) or does not fix that area which is responsible for that issue..
Phone status at this time:
Not root - not unlocked - no backup of TA - DRM Keys (The guy that I bought that phone from, saddly doesn`t do a backup /

Before you flash the stock rom, are you clearing the Dalvik cache?
Whenever I've been through instructions on flashing roms, that always seems to be a step, but I didn't see you mention doing that before flashing.

Lagamorph said:
Before you flash the stock rom, are you clearing the Dalvik cache?
Whenever I've been through instructions on flashing roms, that always seems to be a step, but I didn't see you mention doing that before flashing.
Click to expand...
Click to collapse
Hi, I did that.. the 3 checkboxes in Flashtool are always enabled (Wipe: Cache, APPLOG. Data)

Related

[Q] com.android.phone force close, X10 Mini Pro

Hello,
I have a weird problem, I sold my X10 mini pro, but the customer has a weird force close of the phone app...
the rom version is 2.1.1.A.0.6 as it is the latest available with an italian KIT number.
Anyone knows how to solve this?
He already tried to reflash via Pc Companion, and hard reset via settings...
he is allready done hard reset and memory reset and what the phone doing now?
he says that sometimes the phone hangs, and it shows the phone FC, the only way to reboot is to take the battery out. But the rom is the original one
if the phone is stock... 3 things
1. the phone has problem in it electronic cirquits not firmware
2. he maybe try to unlock it or root it or other kernel /rom
3. dont put the battery out just press the menu button and on/off button together to reboot it
tell him to make a reset and let the phone as stock without programms to see... if the phone has stock apps with the latest stock firmware maybe is the (1.) if the phone is stable in stock mode tell him that is some programm make that hang... because i see that on my phone where i had it stock... install apps only from android market and see if it stable.... then continue easily and stable ... not 5 to 5 programms every time....
wankel29 said:
if the phone is stock... 3 things
1. the phone has problem in it electronic cirquits not firmware
2. he maybe try to unlock it or root it or other kernel /rom
3. dont put the battery out just press the menu button and on/off button together to reboot it
tell him to make a reset and let the phone as stock without programms to see... if the phone has stock apps with the latest stock firmware maybe is the (1.) if the phone is stable in stock mode tell him that is some programm make that hang... because i see that on my phone where i had it stock... install apps only from android market and see if it stable.... then continue easily and stable ... not 5 to 5 programms every time....
Click to expand...
Click to collapse
I don't think he rooted or installed anything, and the phone was working fine when I had it. It's so weird...
if the phone work fine when u had it and is stock and it did not fall down and brake any electronic parts tell him to reset it all everythings programms and start from begginng maybe is a programm... or else he is unlucky guy recycle or fix it to Sony Ericsson... after all i believe that is a programm problem and i say again ... if the truth is that the phone is stock...
IMHO full memory (on-board).
Remove some apps...
Cheers,
M.

[Q] bootloop after root?

i have just got an xperia s, and unlocked the bootloader through sony's site today. i then flashed the pre-rooted firmware, the correct one for my model, and am stuck in a bootloop. I have had android phones before, and always been able to get out of messes like this, but sony's system seems to be somewhat different from my previous Moto. can anyone tell me how to possibly fix this? many thanks
Flash another firmware with flashtools.
Sent from my LT26i using Tapatalk 2
thanks, currently downloading the 73 version to test. I have an issue with flashtools though, and fastboot in general on my PC, the drivers do not seem to have installed, as when i try fastboot i get blue led for aprox. 5 seconds, then reboot into the bootloop. fastboot works fine on my mac though
Must install them manually. You open the device manager, right clicking on the S1boot, update drivers. Then shows you which folder is the drivers. and voila.
thanks, ive got it to boot again, and tried various roms, but keep having the same wierd issues. first, everytime i boot i have to go through the xperia setup completely from scratch again, as if the phone is brand new.
secondly, im using doomkernel v4a, and have installed the wifi modules as specified, but turning on wifi causes an instant crash and then reboot, sometimes immediately, sometimes after a short freeze
thirdly, somehow 'phone memory' is completely full, whatever i do. Internal memory, when the phone is completely empty, only shows as 25gb, but phone memory is totaly full, regardless of weather i clear app data/cache etc
any help would be greatly appreciated XD
hello,
you must flash doomkernel v1 or v1a , then after modules wifi for v1, before flashing v4a ,
(sorry for my bad english)

Q: WT19a random wifi disconnect and Custom ROM flashing problem

Hi!
I have 2 problems with my lww.
The first one is the wifi. It disconnects at random times even having the wifi config to always on and using the wifi high performance wigdet. I go then to the wifi list and i can't see my home network. I have to press scan a couple of times to make it appear again. Is there any fix for that?
I am using stock kernel (cant unlock booloader) and flashed 4.0.4 stock ROM.
The other problem is that i have tried like 4 or 5 different cusrom ROMs. All of them supporting locked bootloaders but they always get stuck at Sony logo at first boot or enter a bootloop. When they enter to the bootloop i get to cwm but i dont know what to do for fixing it. And when it gets stuck in the sony logo i cant even get to cwn and i am forced to connect again to flashtools and start all over again to have rooted ICS...
Any help would be very appreciated!!
PS: any other owner of lww notices a slight noise coming through speakers while playing quiet music through them?
Sorry for my english! I'm fron Chile
Sent from my WT19a
Before you flash the ROM you have to wipe data/factory, wipe cache partition and wipe dalvik-cache. Additionally i do "Format /system," . If you not wipe you got the bootloop. Apart from that you need to use correct ROM and recommended kernel.
That wifi disconnecting issue i also face, but i can't identify what's the correct reason.
Oh. I forgot to tell that even formatting and cleaning dalvik, cache, system, etc. I get bootloop or stuck at sony logo. I double checked to install Real ICS for locked bootloaders but always stuck or bootloop.
Sent from my WT19a

MiniCM10-4.0.1 Can't install any apps

Hello,
since i've updated my firmware to MiniCM10-4.0.1 i can't install any apps.
The only thing is coming when i'm trying to install something is: 'Application not installed'. I already tried a factory reset but it didn't help and the option 'unknown sources' is activated..
Everything works except of that.
My phone is a Sony Ericsson Xperia Mini Pro.
please help me..
Hi
Did you wipe /system, /data and /cache through cwm before installing?
Did you try a full reinstall with kernel and rom?
Do you have the newest jb kernel from nAa?
Can you install apps from the sdcard with the apk?
Answer these and we could propably help
black screen
Ok, i solved the problem. Just added some apps to the rom of the firmware und reinstalled it. And yes, it was the actual firmware and kernel. There was no PlayStore when I installed it for the first time and only some .apk are working.
Now i've got another problem, sometimes the screen stays black after pushing a button. What means sometimes, it happens about every hour, or twice a hour, or four times a hour. It's so annoying, because then i have to take out the battery und put it back in the device again.
I don't know what to do about it, i tried to change the cpuspeed and turned off the automatical screenbrightness, but with no effect.
If you'd read the miniCM10 thread, then you'd know that
this is a known bug.
You dont have to pull out the battery,
when I got this problem I have to push
the power button few times and then
the screen lights up.
doesn't work, the phone just restarts.

[Q] Sony Xperia Tipo ... Bricked?! Please Help

Phone info:
Sony Xperia Tipo ST21i
Rooted
LOCKED Bootloader
Custom Firmware and Custom Rom: Gimlo
Xposed Framework Installed
Problem:
After my last reboot, phone is stuck at 'SONY' bootlogo. I am able to boot to CWM Recovery. On removing battery, phone would switch on automatically sometimes. But the main problem,, the phone doesn't go past the 'SONY' logo.
Edit: The phone charges(shows red led and the charging icon) on connecting to pc via usb.
'Might Be' Causes:
Everything had been working fine upto yesterday. Yesterday i was cleaning up my phone so..something might have happened yesterday. So all the things i did in chronological order(besides daily routine):
Uninstalled apps- Meme Generator Free, Township
Installed- Wakelock Detector and ran it once
Uninstalled Script- TweakDrypt(using Terminal Emulator)
enabled Xposed module for Greenify(free version)
Reboot!
And the phone has been like this since yesterday.
I haven't flashed any rom or anything..and i don't think it is a hard brick either..So will i have to use the flashtool to flash the stock firmware and rom?( I would like an alternative to preserve my data please!)
Solutions Tried:
→Google searches...only found suggestions regarding flashtool to flash the device stock
→At first, i went to CWM and took a nand backup of 'current state' of the phone. Then, I cleared cache and wiped dalvik cache. Rebooted, still it is stuck.
→Did a soft reset, "Power+volume up" until i get 1 vibration..and then released it..no effect.
→I make weekly nand backups of my phone..so i tried restoring last week's backup. Even then it is stuck! I don't understand why would that happen...
Please help...If i have missed out to mention any detail, please do tell and i will send it.
Sherl Holmes said:
Phone info:
Sony Xperia Tipo ST21i
Rooted
LOCKED Bootloader
Custom Firmware and Custom Rom: Gimlo
Xposed Framework Installed
.......
.
Click to expand...
Click to collapse
-_-..Could find no solution...Finally flashed stock ****.

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