Develop Bugs

I can't enter in Fastboot, please help me !

Hello! I have an Xperia Arc ICS 4.0.3 (4.1.A.0.562), I want to unlock my bootloader, but I can't enter in Fastboot, I tried many times (switched phone off, I pressed & hold Menu button and then I connected the USB cable), but don't occur as seen in all tutorials. Turns Sony logo, and blue light flashes only once and the Sony logo remains same. Please help me, as you know almost all, if you have not unlocked bootloader can not really do anything.

you have to hold the right ''options'' button not the home butten
____________________
hit thanks if i helped you

LegendSmoker said:
you have to hold the right ''options'' button not the home butten
____________________
hit thanks if i helped you
Click to expand...
Click to collapse
I know that the menu button is the bottom right

maybe move out the battery wait 30 sec put the battery back in the phone and try then angain
sorry for bad english

Had similar problem once. If its the same, you dont have the drivers installed.
In my case the phone also didnt enter the fastboot mode, LED flashed blue once and the phone kept booting.
Try this thread http://forum.xda-developers.com/showthread.php?t=1582554
or look for fastboot drivers in the forum!
hope i could help!

Ya install fastboot drivers from Flashtool/drivers.
U will be fine.
Arcman™ [email protected] LT15i using Tapatalk 2

Antochrist said:
Had similar problem once. If its the same, you dont have the drivers installed.
In my case the phone also didnt enter the fastboot mode, LED flashed blue once and the phone kept booting.
Try this thread http://forum.xda-developers.com/showthread.php?t=1582554
or look for fastboot drivers in the forum!
hope i could help!
Click to expand...
Click to collapse
Thanks for this link, but I don't know how to install these drivers

dns.vlad said:
Thanks for this link, but I don't know how to install these drivers
Click to expand...
Click to collapse
Did you read the thread? its right here
Velcis Ribeiro said:
Pull up the Windows 8 Main Screen and type, System Configuration, or right-click at Computer. Go at Devices, found you Unrecognized device, right-click on it and Update... "" Than put manually installs... and select the folder.
Click to expand...
Click to collapse
Its the same on Win7 etc. Go to System Configuration -> Device Manager (not sure how its called in english) -> Look for your Arc -> right click -> Install drivers manualy -> show the destination of the fastboot driver folder. :fingers-crossed:
Well something like that... not sure since I'm on Linux.

[Q] One x touch screen fail

Searched many places for my problem but cannot find it specifically and this forum seems to be more clued up than most so here goes.
One x screen started to occasionally freeze on unlock screen (volume buttons worked also the volume pop up came on so screen itself not frozen just couldnt touch input i presume) but would fix with either a full power down or a few presses of the top button. Over the course of a day or two this has progressed to virtually always freezing and finally to where i couldnt unfreeze it even after powering down.
Did a factory reset which did give me access to my phone again but still the problem persists.
From my research it could possibly be some sort of cache problem. Also noticed after factory reset with no apps or data installed, apart from the preinstalled ones, am using 4.7 gb of internal memory with only htc sense running. this seems excessive to me but never checked it before so not sure if this is about right. If not then the cache theory could be right.
So can anyone help me please.

bump

thebarran said:
Searched many places for my problem but cannot find it specifically and this forum seems to be more clued up than most so here goes.
One x screen started to occasionally freeze on unlock screen (volume buttons worked also the volume pop up came on so screen itself not frozen just couldnt touch input i presume) but would fix with either a full power down or a few presses of the top button. Over the course of a day or two this has progressed to virtually always freezing and finally to where i couldnt unfreeze it even after powering down.
Did a factory reset which did give me access to my phone again but still the problem persists.
From my research it could possibly be some sort of cache problem. Also noticed after factory reset with no apps or data installed, apart from the preinstalled ones, am using 4.7 gb of internal memory with only htc sense running. this seems excessive to me but never checked it before so not sure if this is about right. If not then the cache theory could be right.
So can anyone help me please.
Click to expand...
Click to collapse
Did you try RUU?

Not rooted my phone so was hoping to find a fix without rooting in case i have to send it back.

thebarran said:
Not rooted my phone so was hoping to find a fix without rooting in case i have to send it back.
Click to expand...
Click to collapse
Try following this:
http://forum.xda-developers.com/showthread.php?t=1859714
No need to root / unlock bootloader
EDIT: follow option 2

following option 2 but stuck.
Make sure that USB debugging is enabled (Settings/Developer options). In order to determine which ruu file you require, boot your device into bootloader mode (Power off and then restart device by holding Power and Volume Down button together). Connect to pc via USB and check that device shows FASTBOOT USB on screen. Enter the following command in command prompt:
fastboot getvar version-main
But when i enter that in Command prompt i get fastboot is not recognised command etc using windows 8. Any help
Note: my phone is locked

thebarran said:
following option 2 but stuck.
Make sure that USB debugging is enabled (Settings/Developer options). In order to determine which ruu file you require, boot your device into bootloader mode (Power off and then restart device by holding Power and Volume Down button together). Connect to pc via USB and check that device shows FASTBOOT USB on screen. Enter the following command in command prompt:
fastboot getvar version-main
But when i enter that in Command prompt i get fastboot is not recognised command etc using windows 8. Any help
Note: my phone is locked
Click to expand...
Click to collapse
Can you try running fastboot on a different OS? Windows XP/7, Ubuntu? Something else?
EDIT: BTW, are you sure you are running the fastboot command from the fastboot folder?

davidk-il said:
EDIT: BTW, are you sure you are running the fastboot command from the fastboot folder?
Click to expand...
Click to collapse
not doing this what do you mean?

thebarran said:
not doing this what do you mean?
Click to expand...
Click to collapse
Navigate on your PC to the fastboot folder lets say "c:\fastboot".
Shift+right click on any blank place and choose open command window here(or something like that my OS is not in english now).
Try using fastboot commands .

ah nice works, thanks. stay with me in case i get stuck again.

thebarran said:
ah nice works, thanks. stay with me in case i get stuck again.
Click to expand...
Click to collapse
Sorry,
Gotta get some sleep =)
If after running RUU nothing changes take the phone to service.

more problems
Ran and installed the ruu but got an
error[152]:image update error
The ROM update utility cannot update your android phone.
Please get the correct ROM update utility and try again
But i have the correct version already 3.14.401.31 it just wont install and now my phone is stuck on a black screen with htc in centre and nothing else.

Did you run the ruu.exe as a administrator ?
Right click the ruu exe and select that.....and put the phone in the bootloader/fastboot usb mode

Mr Hofs said:
Did you run the ruu.exe as a administrator ?
Right click the ruu exe and select that.....and put the phone in the bootloader/fastboot usb mode
Click to expand...
Click to collapse
tried it in admin mode still no good and cant get to any other screen on my phone now other than the black screen with htc in the middle

thebarran said:
tried it in admin mode still no good and cant get to any other screen on my phone now other than the black screen with htc in the middle
Click to expand...
Click to collapse
Phone for sure in fastboot usb mode?

davidk-il said:
Phone for sure in fastboot usb mode?
Click to expand...
Click to collapse
it was when i first did it biut cannot check no more

Hold the power button and the volume - button together until it reboots and boots into the bootloader, hook the usb cable and you should see "fastboot usb" in red text. At that point you run the ruu with administrator rights

Mr Hofs said:
Hold the power button and the volume - button together until it reboots and boots into the bootloader, hook the usb cable and you should see "fastboot usb" in red text. At that point you run the ruu with administrator rights
Click to expand...
Click to collapse
i cannot. all that happens now is that it powers down and comes back to the black htc screen. cannot get to boot screen anymore.

thebarran said:
i cannot. all that happens now is that it powers down and comes back to the black htc screen. cannot get to boot screen anymore.
Click to expand...
Click to collapse
Try shutting of the phone, powering on when holding power button+volume down for about 8s.
You will get a hboot, choose fastboot connect usb cable and try ruu with admin permissions

finally did get to hboot screen by letting the phone shutdown itself but couldnt ruu as battery power to low so i powered down and recharged battery but back to square one where i cannot get to boot screen just constant black htc screen and cant power down again.
So ill let my battery run down again to power off completely open boot screen then stay on that til i power up enough to try ruu again.
Il let you know what happens when this is done later.

Accidentally installed cloudy for a G2 on my G3. Stuck in Fastboot

Now my phone thinks it's a D800. I was able to get into download mode and tried using LG Flashtool. I used the 850 dll and .tot but got an error.
Download Fail!
Device model is different.
Check phone or dll.
I read something about using a modified .dll but cant find more info on it. Feeling pretty stupid for possibly ruining a $400 device with such an idiotic mistake. Any advice you guys can give me is truly appreciated.
Thanks Guys

Muuust said:
Now my phone thinks it's a D800. I was able to get into download mode and tried using LG Flashtool. I used the 850 dll and .tot but got an error.
Download Fail!
Device model is different.
Check phone or dll.
I read something about using a modified .dll but cant find more info on it. Feeling pretty stupid for possibly ruining a $400 device with such an idiotic mistake. Any advice you guys can give me is truly appreciated.
Thanks Guys
Click to expand...
Click to collapse
I had a similar issue but it was my d800 lg g2, i flashed a diferent rom by accident that wasn't made for the phone. I'm assuming you tried twrp and it didn't let you enter it?

theinspector said:
I had a similar issue but it was my d800 lg g2, i flashed a diferent rom by accident that wasn't made for the phone. I'm assuming you tried twrp and it didn't let you enter it?
Click to expand...
Click to collapse
Sorry if this is an absolutely stupid question, but you can get into twrp from download mode? I had an app that rebooted into twrp, that's the way I did it. Sorry for the noob answers, I'm completely new to rooting.

Muuust said:
Sorry if this is an absolutely stupid question, but you can get into twrp from download mode? I had an app that rebooted into twrp, that's the way I did it. Sorry for the noob answers, I'm completely new to rooting.
Click to expand...
Click to collapse
If you pull the battery so the phone is full powered off, press and hold the volume down button, and the power button down at the same time until you see the LG logo, then release just the power button, keep holding the volume down button, and then quickly press power and hold it again, you will be brought to a factory reset page, that tells you it will wipe all your data, don't worry about it, nothing will wipe, scroll down with the volume key to the yes button, hit power to accept it, it will ask you to confirm it, hit power twice and it should boot into twrp. If it boots into twrp, like it should, then you can either sideload a rom, flash an existing one you have on the phone, or hopefully you have made a twrp backup of your previous rom to restore. If instead of going into twrp, it puts you back into fastboot or download mode after agreeing to the factory reset, then there is a few more things to try.

theinspector said:
If you pull the battery so the phone is full powered off, press and hold the volume down button, and the power button down at the same time until you see the LG logo, then release just the power button, keep holding the volume down button, and then quickly press power and hold it again, you will be brought to a factory reset page, that tells you it will wipe all your data, don't worry about it, nothing will wipe, scroll down with the volume key to the yes button, hit power to accept it, it will ask you to confirm it, hit power twice and it should boot into twrp.
Click to expand...
Click to collapse
ok ya, I tried that earlier. It takes me back into download mode after I confirm yes with the volume buttons.

Muuust said:
ok ya, I tried that earlier. It takes me back into download mode after I confirm yes with the volume buttons.
Click to expand...
Click to collapse
Have you tried using the fastboot boot command from your computer, to boot into twrp?

theinspector said:
Have you tried using the fastboot boot command from your computer, to boot into twrp?
Click to expand...
Click to collapse
My G3 shows up in Device Manager under Portable Devices for about 40 seconds, then it gets a yellow triangle and says "This device cannot start. (code 10)"
It doesn't show up in "Computer" where all the HDD and other devices show up. So I can't access it.

theinspector said:
Have you tried using the fastboot boot command from your computer, to boot into twrp?
Click to expand...
Click to collapse
Did a little searching and I'm trying to install ADB right now. That's what I need right?

theinspector said:
Have you tried using the fastboot boot command from your computer, to boot into twrp?
Click to expand...
Click to collapse
In cmd I entered adb devices and got back "List of devices attached" but my phone doesn't show up here either.

Muuust said:
In cmd I entered adb devices and got back "List of devices attached" but my phone doesn't show up here either.
Click to expand...
Click to collapse
You'll want to get the fastboot drivers, not just the adb drivers. Under device manager after you get the fastboot drivers installed, makes sure the Windows device manager shows your device, and replace the default installed driver for it with the new fastboot one you installed, open a command window with cmd, and search for "fastboot devices" and it should show a long number come back under that list now.
Also, if your computer shows the device for a short period before it disappears, you may have to go into your computers settings to disable auto-driver install, then you can just manually choose the fastboot drivers.

theinspector said:
You'll want to get the fastboot drivers, not just the adb drivers. Under device manager after you get the fastboot drivers installed, makes sure the Windows device manager shows your device, and replace the default installed driver for it with the new fastboot one you installed, open a command window with cmd, and search for "fastboot devices" and it should show a long number come back under that list now.
Also, if your computer shows the device for a short period before it disappears, you may have to go into your computers settings to disable auto-driver install, then you can just manually choose the fastboot drivers.
Click to expand...
Click to collapse
I gotta head to work soon so it'll probably be a bit before I get back to you. But I sincerely want thank you for taking time to help me out. Truly appreciate it.

Muuust said:
I gotta head to work soon so it'll probably be a bit before I get back to you. But I sincerely want thank you for taking time to help me out. Truly appreciate it.
Click to expand...
Click to collapse
Yeah it is no problem, i remember having this same issue and couldn't find a whole lot of information on the issue, so I'm glad to help.

fastboot
I was stuck on fastboot yesterday, used fastboot boot laf.img to go back to download mode and then used lgflashtool to flash a new rom.

unspokenname said:
I was stuck on fastboot yesterday, used fastboot boot laf.img to go back to download mode and then used lgflashtool to flash a new rom.
Click to expand...
Click to collapse
I'm stuck in download mode now. And I cant use the LGFlashtool because my g3 comes up as a G2 in Flashtool. So when I choose the D850 dll and tot, I get an error saying it's the wrong model.

Muuust said:
I'm stuck in download mode now. And I cant use the LGFlashtool because my g3 comes up as a G2 in Flashtool. So when I choose the D850 dll and tot, I get an error saying it's the wrong model.
Click to expand...
Click to collapse
For me, flashtool is incredibly finicky and it takes me many different tries to make it work properly, i would try downloading the latest twrp for your G3, and extract from the .zip file the recovery.img and then try to fastboot boot that recovery to your device like i have previously explained. If that does not work for you, and flashtool does not then you can use fastboot flash commands and flash each of the partitions of your phones stock rom.

theinspector said:
You'll want to get the fastboot drivers, not just the adb drivers. Under device manager after you get the fastboot drivers installed, makes sure the Windows device manager shows your device, and replace the default installed driver for it with the new fastboot one you installed, open a command window with cmd, and search for "fastboot devices" and it should show a long number come back under that list now.
Also, if your computer shows the device for a short period before it disappears, you may have to go into your computers settings to disable auto-driver install, then you can just manually choose the fastboot drivers.
Click to expand...
Click to collapse
After some searching it looks like you can't disable auto driver install in windows 7 Premium. When I uninstalled the driver and plugged the phone back in, I get "Device driver was not successfully installed" In that window, I choose "change settings" and choose "Never install driver software from windows update", but it does anyway. When I go to update driver--> Browse my computer for driver software-->I choose my folder with the fastboot drivers, I get "The best diver software for your device is already installed". Now my phone comes up as LGE Android Net MTP Device, it doesn't show as G3 anymore. Also when I enter fastboot devices in cmd I get 'fastboot' is not recognized as an internal or external command, operable program or batch file. No matter what i do, my phone goes to the Firmware Update screen with the USB symbol on it. IN the small box below the progress bar, it reads: User 50.0 AS0.0 B40 UHS
S U LG-800 04.4.2 Hrev_10
CloudyG2 2.2
I don't know if this is helpful at all.

Pm me, also it would be helpful if to have team viewer so that I can help you.
Sent from my LG-D800 using XDA Free mobile app

How to turn on the device without using on/off button?

Hi. My all side buttons the phone doesnt work any more, it was not a big problem until my battery run out...
Is there is any way to boot it up without using power button? for example with PC or something but of course without losing data??? Please help I need to boot my phone, at least once..

any one people? someone in here definitely should know something about it. xda-dev always do

Any way to do it through ABD?

Try plug it in usb and check if it connects to adb. If yes then type adb reboot. It will be booted to home screen. Else u can try by pressing the volume up and plugin the usb cable it will connect to fastboot then type fastboot boot system.

thanks for trying but it doesn't work...

Sw1pe said:
thanks for trying but it doesn't work...
Click to expand...
Click to collapse
@Sw1pe, if your phone is turned of, connect it to your computer while holding the volume up button. Blue led will glow on your device, your phone is connected in fastboot mode. Now open a command window and type "fastboot reboot" without the quotes and voila. Your computer must have adb and fastboot installed for this purpose. Similarly there is also a command for shutdown command but not for fastboot, but for adb. Hopefully this helps.....

Adil Tariq said:
@Sw1pe, if your phone is turned of, connect it to your computer while holding the volume up button. Blue led will glow on your device, your phone is connected in fastboot mode. Now open a command window and type "fastboot reboot" without the quotes and voila. Your computer must have adb and fastboot installed for this purpose. Similarly there is also a command for shutdown command but not for fastboot, but for adb. Hopefully this helps.....
Click to expand...
Click to collapse
Thanks mate thats a good method, I knew it but the problem is like I did mention in the first post, that all my off my side buttons doesn't work, including volume amd camera button... So im more unlucky than you though. But there is even bigger problem, I don't care that much about the phone, I could just send to incurance. But the problem is as I found out recently, I have very important files for me in phones memory... Thats where this situation makes me extremely unlucky... As those files supposed to be in my SD and I always thought they are until this happened... is there is any way to get those files out?? I got developer mode / usb debugging enabled on my phone. If I send it to incurance I will lose those files... :crying::crying:

@Sw1pe did you get your phone on in the end? I have the same problem

Question Oppo Reno 6 5G (PEQM00) bricked

Hello
I need help here I have tried everything to fix my oppo reno 6 5g chinese version and now I am at a dead end can anybody give any suggestion.?
My phone is on black screen and its showing only for 2 second on device manager as some other version which made mtkclient tool to failed handshake and sp flash tool to give error.
like attached screen shots.
In device manager it is showing as V_1632 which is idk what.
I tried all combination but phone is at black screen now.
Device is not going into BROM mode.
Any help will be much appreciated.

hmmm, at least you didn't flash the wrong preloader, so we can save this pretty easily actually.
Just simply follow this guide:
Download VCOM drivers: Mega Link
Install LibUSB and filter your device driver after connecting it through USB while pressing on both vol + and vol - buttons.
Install Python and install it's requirements using the command `pip install pyusb pyserial json5` in CMD.
Extract MTK bypass util anywhere and run the command `python main.py` in the extracted folder through CMD while your device is connected (KEEP HOLDING VOL + AND VOL - DURING THE BYPASSING!!!).
Open SP and flash the scatter file of your stock ROM (PLEASE ONLY FLASH YOUR STOCK ROM) (ONLY USE DOWNLOAD MODE).
Then reboot your device and it should work.
If you face any issue or don't know how to do a step of those just reply to the thread. I'll try to attach some pictures, just be aware I'm only online at about this time.

XDHx86 said:
hmmm, at least you didn't flash the wrong preloader, so we can save this pretty easily actually.
Just simply follow this guide:
Download VCOM drivers: Mega Link
Install LibUSB and filter your device driver after connecting it through USB while pressing on both vol + and vol - buttons.
Install Python and install it's requirements using the command `pip install pyusb pyserial json5` in CMD.
Extract MTK bypass util anywhere and run the command `python main.py` in the extracted folder through CMD while your device is connected (KEEP HOLDING VOL + AND VOL - DURING THE BYPASSING!!!).
Open SP and flash the scatter file of your stock ROM (PLEASE ONLY FLASH YOUR STOCK ROM) (ONLY USE DOWNLOAD MODE).
Then reboot your device and it should work.
If you face any issue or don't know how to do a step of those just reply to the thread. I'll try to attach some pictures, just be aware I'm only online at about this time.
Click to expand...
Click to collapse
I did everything like you described step by step first 3 steps were installations so that went ok but in step 4 I followed your instructions but nothing happend.
I pressed VOL up+VOL down buttons but nothing happend for long time.
Here is screen shot of CMD
I think preloader is damaged or something because not its not going in BROM mode at all only black screen.
If i press VOL up+VOL down+PWR buttons then in device manager phone is shown as I shared screenshot in post but only for like 2 seconds.
like this
Also in SP flash tool detects the phone but when I hit the downlad button it gives error STATUS_ERR instantly not even start the process.

Most likely you didn't use LibUSB right, just open the app connect the device and when you see it in the list of devices highlight it and press install

XDHx86 said:
Most likely you didn't use LibUSB right, just open the app connect the device and when you see it in the list of devices highlight it and press install
Click to expand...
Click to collapse
I did exactly what you said but the problem is phone is like not responding to VOL+andVOL- buttons command, in LibUsb where it says waiting for devicec i pressed both volume buttons and connect and waited for 1 minute atleast but nothing attached screenshot for rfrence. its just empty.
But when i press all HW buttons then LibUsb shows a device then I select it and install and completes it but thats the problem it only shows for 2 second then gone.
like this
what should i do now?

I think you fried the preloader mate, you need to do a test point connection and force the device to connect to the cpu directly.
If you're unsure how to do that please send your device to a professional instead.

XDHx86 said:
I think you fried the preloader mate, you need to do a test point connection and force the device to connect to the cpu directly.
If you're unsure how to do that please send your device to a professional instead.
Click to expand...
Click to collapse
yeah im not sure how to do that. I think too much flashing may have resulted in that.
Thank you for your help.
but in case if they didnt take it then im afraid im gonna have to try that is there any tool or process or help where i can learn more abt this test connection process?

mamomia said:
yeah im not sure how to do that. I think too much flashing may have resulted in that.
Thank you for your help.
but in case if they didnt take it then im afraid im gonna have to try that is there any tool or process or help where i can learn more abt this test connection process?
Click to expand...
Click to collapse
It's device specific so I'll need to look into it and reply to you, but generally speaking you're going to connect a USB to the device through specific CPU pins on the motherboard.

XDHx86 said:
It's device specific so I'll need to look into it and reply to you, but generally speaking you're going to connect a USB to the device through specific CPU pins on the motherboard.
Click to expand...
Click to collapse
Oh it means I need to open up the phone.
That will be the problem because I dont have the tools to do that.
I guess first I have to try and find some professional then.