Develop Bugs

Fastboot Problems, because of hw keys

Hey
im trying to unlock my bootloader again (had to lock it because i did a OTA on unlocked stock firmware)
im currently on stock ics, if that has anything to say. but the problem is when trying to install the fastboot drivers in windows device management
as far as i have read, when going into fastboot, is powering of the device, press and hold the menu button and connect the usb cable to the phone then u will get a blue light, find the drivers and install
but my menu button does not work anymore, idk why but it wont work when running android either. i have also tried getting in fastboot mode by holding the back button, then i get a green light as usual.
is there any way to enter fastboot without holding the menu button, or do i need to order a new keypad board for my phone
Thanks, Joakim
EDIT!!!!: i dont know what i have been thinking about, as you could enter fastboot, by typing adb reboot bootloader in adb, sorry

good you found out... there's also an option in flashtool inside fastboot window called "reset to fastboot through ADB"... also works... obviously your phone but be turned on and connected to PC through ADB.

Root/Unlock/CM for Sony Xperia ION L28h?

If some one maybe please i`ve been searching the whole day on how to find root and unlock the bootloader for ION L28H ...i tried to unlock via the official way but when i press the VOL UP button and put the usb the LED lights up and after a few secs the SONY logo shows up...

halaf17 said:
If some one maybe please i`ve been searching the whole day on how to find root and unlock the bootloader for ION L28H ...i tried to unlock via the official way but when i press the VOL UP button and put the usb the LED lights up and after a few secs the SONY logo shows up...
Click to expand...
Click to collapse
these are the possible reasons for that to happen
1) u dont hav the drivers for ur phone
download "pdaNet"(just search in google) install with ur phone connected.
2)if u r using USB 3.0 connect to USB 2.0
in my laptop i cant enter fastboot when i connect it to usb 3.0
samething happened to me too at first this fixed it.

abhaysk94 said:
these are the possible reasons for that to happen
1) u dont hav the drivers for ur phone
download "pdaNet"(just search in google) install with ur phone connected.
2)if u r using USB 3.0 connect to USB 2.0
in my laptop i cant enter fastboot when i connect it to usb 3.0
samething happened to me too at first this fixed it.
Click to expand...
Click to collapse
Tried to install pdaNet...failed ...after the instalation it asks me to put my usb cable on my phone i do that while usb debuging is allowed...and it says failed blabla :/

halaf17 said:
Tried to install pdaNet...failed ...after the instalation it asks me to put my usb cable on my phone i do that while usb debuging is allowed...and it says failed blabla :/
Click to expand...
Click to collapse
Are you sure it says that your bootloader can be unlocked in service menu
7378423 in dialer i think
Sent from my Xperia ion using XDA Premium 4 mobile app

If some one can find me a way to unlock the bootloader on L28H i will be very glad...cuz i just bricked my phone and i`m flashing a rom for locked bootloaders

Go to: http://unlockbootloader.sonymobile.com/ and read everything!
At the bottom click 'Start Unlocking the Bootloader'
Quote:
First, you should confirm that it is possible to unlock the boot loader of your phone by checking the service menu. In your phone, open the phone dial pad and enter *#*#7378423#*#* to access the service menu.
In your phone, tap Service info > Configuration > Rooting Status. If Bootloader unlock allowed says Yes, then you can continue with the next step. If it says No, or if the status is missing, your device cannot be unlocked.
After you have verified that you can unlock bootloader, scroll to the bottom of the page and click "Continue"
You will get "Are you sure prompt" accept it by clicking "yes i am sure" (i assume that you have read an understood it)
Then accept the "legal terms"
Finally you will get a "Create Unlock request" page, enter your IMEI (sometimes the last digit needs to be removed for this to work), name and email address
You should now receive your unique unlock key, its displayed on screen, SAVE THIS KEY SAFELY
Extract fastboot_with_Android_USB_file.rar and open fastboot folder
Hold SHIFT and right click on the background of the folder
Select 'Open command window here'
Connect your phone in fastboot mode (turn phone off, hold Volume UP button and plug in USB Cable) [make sure drivers are installed as explained above)
In the cmd windows type in fastboot.exe -i 0x0fce getvar version
If a value is returned (it will return 0.5), it means the phone is correctly connected
Type in fastboot.exe -i 0x0fce oem unlock 0xKEY and replace KEY with the key which you received earlier.
Your device should now be bootloader unlocked
From here- http://forum.xda-developers.com/showthread.php?t=1753261
Is the same for any ION. Some can be unlocked, some can not be unlocked.

halaf17 said:
If some one maybe please i`ve been searching the whole day on how to find root and unlock the bootloader for ION L28H ...i tried to unlock via the official way but when i press the VOL UP button and put the usb the LED lights up and after a few secs the SONY logo shows up...
Click to expand...
Click to collapse
do you have the Unlock key from sony?
and what happens when you plug in the USB cable? I didnt faced the any issue with USB 3.0 at all but it may be an factor for you.

NISHANTJ_2K said:
do you have the Unlock key from sony?
and what happens when you plug in the USB cable? I didnt faced the any issue with USB 3.0 at all but it may be an factor for you.
Click to expand...
Click to collapse
Yes i have the key from Sony but when i connect the phone to pc in fastboot my PC says that it could not recognize it and my phone then boots to the battery logo....EVEN THOUGH i have installed the DRIVERS via the flashtool (flashtool drivers)

halaf17 said:
Yes i have the key from Sony but when i connect the phone to pc in fastboot my PC says that it could not recognize it and my phone then boots to the battery logo....EVEN THOUGH i have installed the DRIVERS via the flashtool (flashtool drivers)
Click to expand...
Click to collapse
then try to boot in fastboot mode via flash tool itself.
once device is in fast boot mode follow the instructions to unlock the boot loader. and It is not necessary to unlock bootloader to install custom rom. it is only required if you want to install custom kernel. recovery can be installed without unlocked boot loaer.

How to remove BootLoader unlocked notification from boot screen

Hey all. I'm in a bit of a pickle. My Tmobile LG g4 has stopped fast charging. When I plug in any cable, I do NOT get the USB notification which allows me to connect to my PC. Enabling the MTP option in the Dev options still does not allow the device to be connected to the PC to flash back to stock for warranty support.
Is there any way for me to save something to the SD card to reset back to stock? Do I have to connect it back to stock or at least relock the boot loader?
I've tried multiple PC's and multiple cables with no success to get the device connected. When connecting to a PC, I get. The device has malfuntioned on my machine.

ftblstr2319 said:
Hey all. I'm in a bit of a pickle. My Tmobile LG g4 has stopped fast charging. When I plug in any cable, I do NOT get the USB notification which allows me to connect to my PC. Enabling the MTP option in the Dev options still does not allow the device to be connected to the PC to flash back to stock for warranty support.
Is there any way for me to save something to the SD card to reset back to stock? Do I have to connect it back to stock or at least relock the boot loader?
I've tried multiple PC's and multiple cables with no success to get the device connected. When connecting to a PC, I get. The device has malfuntioned on my machine.
Click to expand...
Click to collapse
does it go into download mode.? phone off vol up key and connect usb.?
if you want to remove unlocked bootloader follow this comands
UPDATE:
I was able to Lock the bootloader.
1. I connected the phone to my PC
2. Powered on the Phone (it took a few tried of pulling the battery and powering on)
3. Check the box for OEM Unlock in Dev. Option
4. Use Minimal ADB and Fastboot and type in
Quote:
adb devicecs
- you should see the phone listed as one of the devices in the command line window
Quote:
adb reboot bootloader
- phone should reboot and you shouold see 3 lines of text on top
Quote:
fastboot oem lock
- nothing will happen on the phone, but on in the commandline it should say that it is done
Quote:
fastboot reboot
Phone reboots and the boot screen does not show the unlocked bootloader message anymore

Unfortunately, the computer will NOT detect the phone. No computer will. Using a USB cable that came with it , no luck either. Any ideas?
raptorddd said:
does it go into download mode.? phone off vol up key and connect usb.?
if you want to remove unlocked bootloader follow this comands
UPDATE:
I was able to Lock the bootloader.
1. I connected the phone to my PC
2. Powered on the Phone (it took a few tried of pulling the battery and powering on)
3. Check the box for OEM Unlock in Dev. Option
4. Use Minimal ADB and Fastboot and type in
Quote:
adb devicecs
- you should see the phone listed as one of the devices in the command line window
Quote:
adb reboot bootloader
- phone should reboot and you shouold see 3 lines of text on top
Quote:
fastboot oem lock
- nothing will happen on the phone, but on in the commandline it should say that it is done
Quote:
fastboot reboot
Phone reboots and the boot screen does not show the unlocked bootloader message anymore
Click to expand...
Click to collapse

ftblstr2319 said:
Unfortunately, the computer will NOT detect the phone. No computer will. Using a USB cable that came with it , no luck either. Any ideas?
Click to expand...
Click to collapse
so basically theres no comunication with phone. not really. unless you go and exhcnage it to tmobile, so you cant remove bootloader unlocked message either. if you lucky and tmobile doesnt check for it then you may be able to get it exchanged. as it not recognized in any computer ill say its hardware problem. good luck.

Question Download mode issue

Hi everyone. Ive got my first samsung smartphone. I followed guides to get root, but unfortunately I had no oem unlock button in settings, I used date tweak, and button appeared, until I closed settings window. However in download mode, I still dont have any option to unlock bootloader, only use vol+ to enter download mode, or vol- to reboot. I ve tried to unlock it from adb, but no luck I just get my phone restart while trying to acces fast boot with adb reboot bootloader. Please help, phone is cool, and I dont want to refund

If the oem unlock isn't in the settings app you can't root it.

spart0n said:
If the oem unlock isn't in the settings app you can't root it.
Click to expand...
Click to collapse
But it is there. I already enabled it

Romchik971 said:
But it is there. I already enabled it
Click to expand...
Click to collapse
Go to Download mode like this :
Turn off the phone
Hold volume + and - and then plug in a USB cable ( already connected to a PC )
Then you should see that "unlock bootloader" option

Bootloading Kyocera DuraXV Extreme

Hello, I'm having some serious trouble bootloading my Kyocera DuraXV Extreme (AOSP)
I've went into developer options and activated USB debugging and allowed OEM unlocking.
But I get stuck on rebooting into bootloader mode. I've tried different approaches:
1. Starting up phone while holding volume up and down buttons. Then select "reboot to bootloader".
2. adb reboot bootloader command
Both options reboot the phone without going into bootloader mode.
Seems Kyocera decided to somehow lock the bootloader mode. Anyone know of a workaround here?

jonas.sj said:
Hello, I'm having some serious trouble bootloading my Kyocera DuraXV Extreme (AOSP)
I've went into developer options and activated USB debugging and allowed OEM unlocking.
But I get stuck on rebooting into bootloader mode. I've tried different approaches:
1. Starting up phone while holding volume up and down buttons. Then select "reboot to bootloader".
2. adb reboot bootloader command
Both options reboot the phone without going into bootloader mode.
Seems Kyocera decided to somehow lock the bootloader mode. Anyone know of a workaround here?
Click to expand...
Click to collapse
My comments below are based on the belief that you are trying to unlock the bootloader.
I am not familiar with this phone but generally the two steps mentioned by you are not enough to unlock the bootloader. After those steps, you'll have to issue a command via adb to unlock the bootloader and if successful, then you can boot into it for further operations. The command will vary between devices, so search and profit.

Thanks, this cleared it up a bit, you are right, I'm trying to unlock it.
I'm trying the command fastboot flashing unlock but only getting the message < waiting for any device >. I read somewhere that I might need some USB drivers but I don't know where to find them. I have the latest version of the standard USB drivers for the phone, but as I understand it I need special drivers for this?

I'm trying to follow the steps here: https://www.ifixit.com/Guide/How+to+unlock+the+bootloader+of+an+Android+Phone/152629#s317298
I get stuck on the step:
Enter the command adb reboot bootloader
Wait a couple seconds until your device rebooted into the bootloader, then enter the command fastboot flashing unlock
My phone isn't "rebooted into the bootloader", it just reboots. It gives the message "< waiting for any device >" when I write fastboot flashing unlock

jonas.sj said:
I'm trying to follow the steps here: https://www.ifixit.com/Guide/How+to+unlock+the+bootloader+of+an+Android+Phone/152629#s317298
I get stuck on the step:
Enter the command adb reboot bootloader
Wait a couple seconds until your device rebooted into the bootloader, then enter the command fastboot flashing unlock
My phone isn't "rebooted into the bootloader", it just reboots. It gives the message "< waiting for any device >" when I write fastboot flashing unlock
Click to expand...
Click to collapse
It should be a driver issue. When the phone is on and you connect it to the PC/laptop and send the command 'adb devices', does it show an alphanumeric value? Likewise, when you are booted into the bootloader by key combination and send the command, 'fastboot devices', does it show the same alphanumeric response? If so, the drivers are installed properly. If not, either you don't have the correct drivers or they are not installed properly. Try installing the drivers again after disabling driver signing in Windows on your PC (search for it on Google).

Hello, can you clarify what you mean by "booted into the bootloader by key combination"?
My problem is I cannot boot into bootloader at all.
Any attempt at doing so results in a normal boot of the device.

jonas.sj said:
Hello, can you clarify what you mean by "booted into the bootloader by key combination"?
My problem is I cannot boot into bootloader at all.
Any attempt at doing so results in a normal boot of the device.
Click to expand...
Click to collapse
Are you sure that the key combination for booting into bootloader is what you described in the first post?
1. Starting up phone while holding volume up and down buttons. Then select "reboot to bootloader".
Click to expand...
Click to collapse
I see Power plus Volume Up as the suggested one from a Google search. Try that.
If you can't even boot into the bootloader with the correct key combination, I don't know how to help you further since we are starting to go in circles. I am sorry.

Hello, thank you so much for trying to help me. It seems I can't boot into bootloader. Volume up + power gives the same result as what I did before.: It opens a "Recovery" menu where I can choose reboot to bootloader, but this option just reboots the phone.
I've been in contact with Kyocera and they say:
Thanks for contacting the Kyocera Customer Support. We will be more than happy to assist you with your concern
In this case allow us to inform you that since this device is a basic phone , it doesn't have the option to activate fastboot mode. By installing something that will change the way the phone works , that will void the warranty that came with the phone. We as manufacture can not help you to modify the software that came with the phone.
So the phone's fastboot mode has been deactivated. But since it's an android I guess it should still be possible with some workaround. I just don't know whee to start, I've been researching for a week with no result.

Something interesting ehre, maybe someone with more coding knowledge can tell what's going on.
I found the source code for the phone and located a file called recovery.c which I guess handles the menu I see when I press volume up + power button. Maybe some clue to why the phone isn't going into fastboot mode?