Develop Bugs

Device wont turn on but shows when connected via usb

Hey there,
I got this Desire Z from a friend as he was going to throw it away,
it does turn on, no notification light, screen doesnt turn on, no sounds but when i connect to my computer it shows up as Zeus Flash Device
Is the phone dead or is there any way to revive it?
im unsure what happened prior to it stopping working
any help appriciated
edit: found out its hard bricked, oh well lol

havokk said:
Hey there,
I got this Desire Z from a friend as he was going to throw it away,
it does turn on, no notification light, screen doesnt turn on, no sounds but when i connect to my computer it shows up as Zeus Flash Device
Is the phone dead or is there any way to revive it?
im unsure what happened prior to it stopping working
any help appriciated
edit: found out its hard bricked, oh well lol
Click to expand...
Click to collapse
Is this phone Rooted? well try this pull the battery out put it back in, and press and hold volume down button and press power and see if you are able to get into boot loader...

tricky !
two options
1- check bootloader (volume down + power) , if it gets a white screen with options , you can repair the device.
2- if it does not go into bootloader , then first download Htc sync for desire z , setup the android SDK , then plug ur phone inn, in command prompt , type *adb devices* .
If it shows a serial number below List Of Devices , then get back to this forum and report
And the last thing is the power Hardware button fine ?? Although quite impossible , but the hardware power button might be faulty !!

ahmedrzvi said:
Is this phone Rooted? well try this pull the battery out put it back in, and press and hold volume down button and press power and see if you are able to get into boot loader...
Click to expand...
Click to collapse
No response from anything lol
mohnish.killer said:
two options
1- check bootloader (volume down + power) , if it gets a white screen with options , you can repair the device.
2- if it does not go into bootloader , then first download Htc sync for desire z , setup the android SDK , then plug ur phone inn, in command prompt , type *adb devices* .
If it shows a serial number below List Of Devices , then get back to this forum and report
And the last thing is the power Hardware button fine ?? Although quite impossible , but the hardware power button might be faulty !!
Click to expand...
Click to collapse
Wasnt able to get into bootloader and nothing showing in abd lol
I unsinstalled and removed the driver that it was showing as when i plugged it in and now it lists itself as QHSUSB_DLOAD
After googling around it says this can be fixed with jtagging, and i know someone who does that so gonna let him take a look lol
And i know the power button is working as it doesnt show up in device manager untill i press it

!
as always JTAG FTW !!

[Q] Booting problem

hi. I encountered a problem on my phone that doesn't boot properly.
When i tried to switch on my phone it showed at first the welcome msg "Samsung S4 mini gt-i9192" then after that, a pitch black screen, could not properly boot. But i learn that it does not turns off after the screen turns all black, i have to press the power button first to turn off the phone.
This problem started when i installed an app with some compatibility problems.
I wanted to root my phone hoping that can solve the problem, but then again a problem occurred when i tried to connect my phone to my laptop. It fails to install MTP usb device to my computer. I tried connecting it again provided that samsung kies was installed but again failed to connect my phone. Therefore i cant root my phone because i cant copy the files needed to root to my phone sd card.
I tried reinstalling kies, installing mtp drivers but nothing happened. I tried also restoring the previous boot image, restoring factory settings using recovery mode. But then problem still exist.
And fyi my phone can't mount any external sd card using recovery mode. And i think it was not in a debugging mode.
Phone: samsung s4 mini gt-i9192
firmware: i dont know
So basically, the problem is:
my phone wont boot,
i cant connect it to my pc
and i cant root it.
How should i root or even flash my phone when i cant connect to my computer? Do you have any idea on how to solve this problem? Any solutions or suggestions would be much appreciated. tnx.

champagneerantja
emzgames said:
snipped.
Click to expand...
Click to collapse
Have you tried putting the phone in download mode (Volume Down + Home + Power) and then connecting it your p,c , if not give this a shot it should pick up the drivers , once done , take out the usb cable hold the power the button to shut down and boot up .
since you have not mentioned your OS am assuming it is windows , try taking out Kies via some software like revo uninstaller which will remove all directories plus all registry entires then reinstall it if you really need it.

dovakinn said:
Have you tried putting the phone in download mode (Volume Down + Home + Power) and then connecting it your p,c , if not give this a shot it should pick up the drivers , once done , take out the usb cable hold the power the button to shut down and boot up .
since you have not mentioned your OS am assuming it is windows , try taking out Kies via some software like revo uninstaller which will remove all directories plus all registry entires then reinstall it if you really need it.
Click to expand...
Click to collapse
tried both yet still unable to connect.

emzgames said:
tried both yet still unable to connect.
Click to expand...
Click to collapse
dial *#0808# from your cell this would take you in usb settings, tick both mtp+adb , reboot , if they art already ticked uncheck them and check them again.

dovakinn said:
dial *#0808# from your cell this would take you in usb settings, tick both mtp+adb , reboot , if they art already ticked uncheck them and check them again.
Click to expand...
Click to collapse
im afraid i cant do this coz i cant boot my phone properly, up to welcome msg only then screen black out, but not power off.

emzgames said:
im afraid i cant do this coz i cant boot my phone properly, up to welcome msg only then screen black out, but not power off.
Click to expand...
Click to collapse
ohhh best take your cell to your nearest service center then . if you can't flash anything and usb is not getting detected i don't see any other option , maybe someone more experienced here can help.

dovakinn said:
ohhh best take your cell to your nearest service center then . if you can't flash anything and usb is not getting detected i don't see any other option , maybe someone more experienced here can help.
Click to expand...
Click to collapse
yah, thats what im thinking. i just brought this here hoping to solve this problem without going to a shop. thanks anyway.

aac. To me put your phone in download mode then use moborobo(a windows software) . Just open it and it will install the driver. If it dies not work then use adb installer . Remember you should have only any one of the software at one tim means either moborobo or kies or adb installer
Sent from my GT-I9001 using xda app-developers app

btw have you tried to boot the phone in safe mode ?? if it boots in safe mode it is still fixable without going to service center. power down , power up+ tap the menu button 3 or 4 times at THE same time to boot into safe mode if it boots into safe mode that means the hardware and OS is fine if it does not well then your out of luck.

dovakinn said:
btw have you tried to boot the phone in safe mode ?? if it boots in safe mode it is still fixable without going to service center. power down , power up+ tap the menu button 3 or 4 times at THE same time to boot into safe mode if it boots into safe mode that means the hardware and OS is fine if it does not well then your out of luck.
Click to expand...
Click to collapse
tnx man, but no luck..

Tried flashing a custom rom?

[Guide] Soft unbrick/reflash stock firmware

DISCLAMER and WARNING: I'm not responsible for bricked devices, dead SD cards, thermonuclear war, or the current economic crisis. Please do some research if you have any concerns about this app.
Click to expand...
Click to collapse
Story:
Just received Sony Smartwatch 3 and decided to oem unlock for future so once root available I would not need to reset device.
Enabled adb
manually specified correct drivers in device manager
rebooted to bootloader using adb reboot bootloader
entered fastboot oem unlock twice and watch rebooted
but got stuck on boot for whatever reason.
I tried all the methods to get into fastboot (Swiping diagonal as on LG watch, and together with power button as on samsung ) to no avail.
The only other mode I was able to get into - s1 flash device w/o drivers.
Found Sony Emma software to work with unlocked Xperia, and after its installation it said that bootloader is locked and I need to either update from sony site or unlock bootloader first!
Installed Sony PC Companion software, but software update while listing smartwatch 3 said that there is no firmware for it.
After googling random forums on bootlooping sony xperias found that to reset device you need to click "repair my phone/tablet" in Phone/Tablet Software Update section
Click to expand...
Click to collapse
Guide to unbrick bootlooping SWR50 that is able to get into s1 bootloader/flash mode:
1. Power off device by holding power key until it reboots and then switches off with few vibrations
2. Connect to computer and check device manager - you should see unknown device
3. Install Sony PC Companion from this website http://www.sonymobile.com/us/tools/pc-companion/
Check if driver appeared in the Device Manager, e.g. unknown device will disappear and something like SEFLash will appear under usb controllers
If driver is still not found - try to install Emma (http://developer.sonymobile.com/services/flash-tool/) and get this driver to work
4. Go into PC Companion and click on "Support Zone", it will be downloaded
5. Then click on "Accessories software update" and try to update Smartwatch 3 (We might get new versions in the future, so it will be easiest to do so)
UPDATE: Now you can reflash from Accessories page, it will ask if you want to refrlash. Keeping steps bellow for information purposes.
6. If #5 not working:
Click on "Phone/Tablet Software Update" (yes, silly), click on "repair my phone/tablet", click Continue and Agree to all licenses, etc....
7. Once presented by the list of phones - Select anything I guess, but I selected Xperia Z2, it should start downloading and then updating.
8. Once done it will say build number watch was flashed, in my case it was KNX01V
9. Disconnect watch and boot it.
P.S. I guess they show phone selection just to provide instructions how to get into download mode and then flash based on the versions from bootloader.
P.P.S I'm glad I tried this last resort thing after being ready to deal with verizon support and waiting for new watch...

I've found that formatting cache and userdata partition like it says in the link below makes the device boot as expected:
source.android.com -> /source/building-devices.html#unlocking-the-bootloader
(sorry for faulty link, new user)

Good to know, I decided to wait a bit as I was eager to play with new toy.
Will unlock tomorrow if it is still locked after Sony reset.
And looks like I would have to write my own apps to test GPS and sensors performance.

And the good news is fastboot state unlocked after stock reflash.

XorZone said:
manually specified correct drivers in device manager
Click to expand...
Click to collapse
Can you please elaborate on which driver you used to get access to the Smartwatch 3 via ADB? I am trying to use the latest google USB driver, but the device is showing up as offline listed under "adb devices". Just tried the latest ADB v1.0.32 and it seems the watch shows up as "unauthorized". Did you see an ADB notification on the watch that you had to accept, because I am not seeing anything like that.
NVM, it started working after I restarted adb server like 25 times...

Device offline usually is not about driver. But I hit on device and manually picked google-adb composite device

OK, bricked watch today with corrupted /system and boot process hanged with non responsive power button. Had to wait for discharge and it was pita to get into flashmode with enough juice, because after black screen charging it boots instead of going into kernel charging.
Anyway it is up and running and has ROOT now!
Will upload files and create guide as soon as I will be with good internet.

See my sig!

*delete*
*deleted*

Well, there are different levels of bootloaders
At least Sony s1 flash, fastboot, kernel...
To flash with PC companion you need to boot into s1 by powering off and then hold power and connect to USB once sony logo shown (you should see black screen with backlight on). Make sure you sit on PC companion update screen and that watch had enough juice.
With charging there are different levels of charging:
1. Battery dead
2. Boot loader charging (about 4 min from USB port) with black screen
3. Kernel charging either offline (if you powered off before) or boot and operational charging.
When #2 charges it will boot kernel and if kernel or system is broken it might hang and discharge.
But you can force into s1 flash mode before it boots into kernel. Or if you lucky you could power on and power off before it boots and hang.
In my case I had not enough juice to flash it and watch didn't react to button in kernel mode, so I had to wait for discharge, then plugged into USB and start timer, figured it boots after ~3min 55sec. So I opened PC companion update screen, waited 3:53 and disconnected watch, then hold power button and connect to PC after 5 sec and was able to flash.
To power off - just hold power button until it reboots and continue holding until it vibrates 3 times.
Good luck

XorZone said:
Story:
Guide to unbrick bootlooping SWR50 that is able to get into s1 bootloader/flash mode:
1. Power off device by holding power key until it reboots and then switches off with few vibrations
2. Connect to computer and check device manager - you should see unknown device
3. Install Sony PC Companion from this website http://www.sonymobile.com/us/tools/pc-companion/
Check if driver appeared in the Device Manager, e.g. unknown device will disappear and something like SEFLash will appear under usb controllers
If driver is still not found - try to install Emma (http://developer.sonymobile.com/services/flash-tool/) and get this driver to work
4. Go into PC Companion and click on "Support Zone", it will be downloaded
5. Then click on "Accessories software update" and try to update Smartwatch 3 (We might get new versions in the future, so it will be easiest to do so)
UPDATE: Now you can reflash from Accessories page, it will ask if you want to refrlash. Keeping steps bellow for information purposes.
6. If #5 not working:
Click on "Phone/Tablet Software Update" (yes, silly), click on "repair my phone/tablet", click Continue and Agree to all licenses, etc....
7. Once presented by the list of phones - Select anything I guess, but I selected Xperia Z2, it should start downloading and then updating.
8. Once done it will say build number watch was flashed, in my case it was KNX01V
9. Disconnect watch and boot it.
P.S. I guess they show phone selection just to provide instructions how to get into download mode and then flash based on the versions from bootloader.
P.P.S I'm glad I tried this last resort thing after being ready to deal with verizon support and waiting for new watch...
Click to expand...
Click to collapse
This method is windows only. Is there no cross-platform way to do it?

I did the stupid thing.. and ended up with a softbricked phone.
Sony PC Companion did the trick for me!
I tried doing it through VMWare on my macbook, but didn't seem to work at all.
On windows it was plug'n'Pray

Sony companion will not let me restore my SW50. Detects it and tells me that the software is updated. If I try from the menu to repair phone, it makes me accept all agreements and finally tells me the same thing no updates.
Is in bootloop and do not start after open bootloader

My sw3 is in bootloop.I uesd your guide but still can't repair my watch. I tried many time to use pc companion but always got the same wrong message,wrong code(100) which couldn't connect to the Internet.

@swidon @KONG8691
I find myself in the same situation, you have found a solution to the problem?
Thanks for your help
best regards

jerry_italia said:
@swidon @KONG8691
I find myself in the same situation, you have found a solution to the problem?
Thanks for your help
best regards
Click to expand...
Click to collapse
Yes!, follow these instructions and you can enter in fastboot or recovery and flash a new firmware:
Detach any USB cable connected to the watch
Turn it off holding the power button and keep holding the button until the watch vibrates three times and then switches it off
Press the power button and keep holding. A blue screen that prompts to insert an USB cable will display
Double tap the power button
A black menu will display, with on-screen instructions
Move to Fastboot or Recovery Mode pressing the power button, once a time
Select Fastboot (or Recovery) by double pressing the power button
Good luck bro.

swidon said:
Yes!, follow these instructions and you can enter in fastboot or recovery and flash a new firmware:
Detach any USB cable connected to the watch
Turn it off holding the power button and keep holding the button until the watch vibrates three times and then switches it off
Press the power button and keep holding. A blue screen that prompts to insert an USB cable will display
Double tap the power button
A black menu will display, with on-screen instructions
Move to Fastboot or Recovery Mode pressing the power button, once a time
Select Fastboot (or Recovery) by double pressing the power button
Good luck bro.
Click to expand...
Click to collapse
you are my hero... stock recovery flashed and sw3 reboot! thankyou so much bro

jerry_italia said:
you are my hero... stock recovery flashed and sw3 reboot! thankyou so much bro
Click to expand...
Click to collapse
How do you go about getting stock recovery back at the moment I'm on 5.0.1 and I can't ota update to 5.1.1 because it thinks its on 5.1.1 when it's not the only way I can think of updating it is to get stock recovery then sideload the ota zip on stock recovert but I can't do that with TWRP can someone help?

Hi,
My watch boot loops on the marshmelow boot animation after I Got marshmelow
I tried XorZone instractions and it said it re-updated image. but it will boot looped.
I tried to factory reset from the menu (double tap at download screen then go factory reset).... didn't work. still boot loops.
I see I can go to fastboot or recovery, but what do I do there? Any instructions I can follow to try to revive my watch please? thanks.

wonderfull!
XorZone said:
Well, there are different levels of bootloaders
At least Sony s1 flash, fastboot, kernel...
To flash with PC companion you need to boot into s1 by powering off and then hold power and connect to USB once sony logo shown (you should see black screen with backlight on). Make sure you sit on PC companion update screen and that watch had enough juice.
With charging there are different levels of charging:
1. Battery dead
2. Boot loader charging (about 4 min from USB port) with black screen
3. Kernel charging either offline (if you powered off before) or boot and operational charging.
When #2 charges it will boot kernel and if kernel or system is broken it might hang and discharge.
But you can force into s1 flash mode before it boots into kernel. Or if you lucky you could power on and power off before it boots and hang.
In my case I had not enough juice to flash it and watch didn't react to button in kernel mode, so I had to wait for discharge, then plugged into USB and start timer, figured it boots after ~3min 55sec. So I opened PC companion update screen, waited 3:53 and disconnected watch, then hold power button and connect to PC after 5 sec and was able to flash.
To power off - just hold power button until it reboots and continue holding until it vibrates 3 times.
Good luck
Click to expand...
Click to collapse

Cant enter fastboot ＆ recovery mode！

Hello，everyone,i got a problem that i cant enter fastboot and recovery mode.
today ,i installed CM12 22/7 upgrade ,and before i install this ,i did a backup of build.prop because i have V4A and every time i upgrade CM i have to change this build,prop ,so i want make a copy and when i finish upgrade i can just move that file without do anything ,and everything goes well, i installed upgrade and installed V4A driver ,it says i need restart,so i restarted,but after LG logo ,screen turn black, cant enter system ! i thought maybe i flash CM one more time can repair this,so i press POWER and volume down,but,nothing happen ,after LG logo,and screen turn black,and i try to enter fastboot mode ,its the same ,when LG logo shows screen turn black.......
My phone is LG d855,and my English is bad,i hope you can understand
Can anybody help me?

did you try entering Download mode?

Phone stuck in bootloop, help please
wrong trhead

Are you sure you there is no fastboot and no download mode?
You can enter download mode by pressing and holding the “Volume Up” and connecting the USB cable from phone to PC
If it works then you Soft bricked it...And you can use this guide to fix it:
http://forum.xda-developers.com/showthread.php?t=2785089
.
.
.
BUT if that does not work then you Hard bricked the phone
I had that problem because of flashing with faulty win8 drivers...no download mode or fastboot, all i got was security warning and bootloop. The only way you can fix hardbrick is through JTag, but i don't know if you can fix it without paying someone money, because you need special hardware to do it. You can find people on ebay that can fix it but it will cost you 30-50$.
I sent mine to warranty...they didn't know what was wrong with it and couldn't fix it...and so they just replaced the motherboard. If you have a warranty then send it and do NOT!! tell them you flashed it or rooted it. Tell them you don't know what happened...The chances of them finding out is very small.
If ebay and/or warranty not work, then there was an article on the Internet to fix a hard brick but for some reason it is now password protected...i do not know why....You can send the owner an email so he can give you the password.
http://www.androidbrick.com/unbrick-recover-your-dead-lg-g3-g2-all-variants
...There is another article but it is in Portuguese
http://arena4g.com/forums/topic/tutorialunbrickhard-unbrickd855
But then again you cant be certain this will work either.
Conclusion: Fk LG...They don't want people upgrading their slow buggy software.

Alex_XV6700 said:
did you try entering Download mode?
Click to expand...
Click to collapse
i cant enter download mode,always turn black after LG logo

Disconnect cable from pc and phone
Press power + vol -
You will get first black screen, keep pressing until lg logo appears and it shuts off completely.
Then press just vol + and reconnect cable to computer.
That should leave you in download mode or fastboot.

Alex_XV6700 said:
Disconnect cable from pc and phone
Press power + vol -
You will get first black screen, keep pressing until lg logo appears and it shuts off completely.
Then press just vol + and reconnect cable to computer.
That should leave you in download mode or fastboot.
Click to expand...
Click to collapse
no,when i reconnect phone,and only press volume + ,its shows i am Charging then phone is off.......cant enter download mode,but i found when i press volume +and- , i can enter hardware key control mode,but there only have 3 choice,cancel , mode on and mode off,i have tried mode on and mode off,doesnt work.

rubisco1 said:
Are you sure you there is no fastboot and no download mode?
You can enter download mode by pressing and holding the “Volume Up” and connecting the USB cable from phone to PC
If it works then you Soft bricked it...And you can use this guide to fix it:
http://forum.xda-developers.com/showthread.php?t=2785089
.
.
.
BUT if that does not work then you Hard bricked the phone
I had that problem because of flashing with faulty win8 drivers...no download mode or fastboot, all i got was security warning and bootloop. The only way you can fix hardbrick is through JTag, but i don't know if you can fix it without paying someone money, because you need special hardware to do it. You can find people on ebay that can fix it but it will cost you 30-50$.
I sent mine to warranty...they didn't know what was wrong with it and couldn't fix it...and so they just replaced the motherboard. If you have a warranty then send it and do NOT!! tell them you flashed it or rooted it. Tell them you don't know what happened...The chances of them finding out is very small.
If ebay and/or warranty not work, then there was an article on the Internet to fix a hard brick but for some reason it is now password protected...i do not know why....You can send the owner an email so he can give you the password.
http://www.androidbrick.com/unbrick-recover-your-dead-lg-g3-g2-all-variants
...There is another article but it is in Portuguese
http://arena4g.com/forums/topic/tutorialunbrickhard-unbrickd855
But then again you cant be certain this will work either.
Conclusion: Fk LG...They don't want people upgrading their slow buggy software.
Click to expand...
Click to collapse
thx for your reply. i tried many times with different way,try to enter download mode or fastboot .......but failed.and now i decided buy Nexus 6

Panasonic DMC-CM1 Factory Reset

hello
i searched the whole internet but there are not much informations about this Phone so i thought i make a new Thread
about the panasonic DCM-CM1 Factory Reset.
please write here any informations and experience you have about the Panasonic DMC-CM1
i never saw someone on youtube google or any other side or anyone who can tell me how to do a Factory Reset with this phone
today i called 5 Panasonic service numbers but noone can help, i also called about 10 Phone Service points for repair no one can help.
i tryed so much with this phone and i finaly found that the CM1 have a Secret key combination to connect it with USB as a Android ADB Interface without having acces to the phone cause it is screen locked.
1 .Turn Phone off
2. press Camera + Volume-up + Power ( Hold )
3. while Holding connect USB. (Hold)
4 .the LED should go green for maybe 2 seconds release all bottons while the led is green before it turns off and then the LED must still green.
then windows found a Android ADB Interface
if im in android SDK Tools i the phone will be found in fastboot!
if i type Fastboot Devices
the other thing i know is how to start in Save mode.
but this is nothing to help with a lost pin.. it only starts the phone without apps that have been installed by the user.
maybe for deinstalling a app or a buggy app.. dont know..
start phone at the screen for the pin or at the home menu..press the power botton hold for 2-4 seconds or so it ask for Shut down Restart and so.. just press and hold Shut down. and then it ask you if you want to start in Save mode. then press yes.
2 weeks ago i wanted to make a Screen lock with a pin for more secure.. i cant remeber the pin anymore thats why i want to make a Factory reset i think im not the only one. so any information would be nice
if there is someone who made Factory Reset with this phone or was able to start in fast boot or anything.. please share the infos with us!
thank you.