I have already rooted my phone.
Actually i tried to backup my current ROM using ROM Manager, for that it reboot phone and get stuck for an hour. so i take out the battery. try to hard reset the phone it takes me to
Code:
Fastboot mode started
udc_start()
when i connect my usb cable it turns like below and nothing happening after that
Code:
Fastboot mode started
udc_start()
--suspended--
I also tried to get into emergency mode many times by volume up + volume down + Connect USB cable , but i get only LG logo nothing more.
Now i even not get into fastboot mode. i get only LG logo by holding any key combination.
Take out battery hold the buttons to put it in download mode keep holding while you put the battery back in
Sent from my SPH-D700 using xda premium
Use this http://forum.xda-developers.com/showthread.php?t=1827723
gabo_lope said:
Use this http://forum.xda-developers.com/showthread.php?t=1827723
Click to expand...
Click to collapse
but to use the tool, The device must be in fastboot/bootloader mode.
Now i am not able to get fastboot screen also. i tried number of key combination while powering on phone. but all time i get LG logo nothing else.
I got a XT912 with a screen that stays black(don't know why, it looks fine). What i am trying to do, is to get into the fastboot mode without seeing anything so i can flash a stock rom via pc. Whatever combinations i try i only get it to reboot(it keeps saying "droooiiiidd"). I googled alot and i can't find a solution for this.
The reason why i want to flash a new rom is because i want to try if i can fix this screen issue and because the screen is locked and i can't get past that and use the phone(via otg and hdmi out).
How do i shut the phone down only using the keys(without restarting) and how do i start from a powered down mode into fastboot(step by step guide would be helpful).
Ensure phone is completely powered off (also, fully charged). Vol down + Power (vol down first). Release power button after 3-5 seconds, and then release vol down. You are now in fastboot. Connect usb, and your computer should identify the phone.
LuckiestNut419 said:
Ensure phone is completely powered off (also, fully charged). Vol down + Power (vol down first). Release power button after 3-5 seconds, and then release vol down. You are now in fastboot. Connect usb, and your computer should identify the phone.
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Click to collapse
What about selecting fastboot first? Isn't there some kind of menu i get into after doing that(at least i know there should be one)? Where i have to scroll down and select fastboot.
Holding vol up and vol down will bring you to the boot menu. Vol down is directly to fastboot mode.
Sent from my XT912
LuckiestNut419 said:
Holding vol up and vol down will bring you to the boot menu. Vol down is directly to fastboot mode.
Sent from my XT912
Click to expand...
Click to collapse
Can i somehow shut it down with the keys? I don't know why, but whatever i try it keeps rebooting only.
Press and hold both vol buttons and the power button for six to ten seconds. Then release all three. That is a manual reboot. A working screen will briefly flash. If you try to boot to the main boot menu, with vol +/-, and power, AP Fastboot is the third option. Press vol down twice to highlight ap fastboot, vol up once to select it. This also takes you to AP Fastboot mode, as opposed to the vol down and power, which is direct.
Sent from my XT912
LuckiestNut419 said:
Press and hold both vol buttons and the power button for six to ten seconds. Then release all three. That is a manual reboot. A working screen will briefly flash. If you try to boot to the main boot menu, with vol +/-, and power, AP Fastboot is the third option. Press vol down twice to highlight ap fastboot, vol up once to select it. This also takes you to AP Fastboot mode, as opposed to the vol down and power, which is direct.
Sent from my XT912
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Click to collapse
Thats what i tried just now, i pressed vol+/- and power to reboot. Soon after i pressed again vol+/- and power and waited for like 10 sec, then i pressed vol - 3 times and then vol + and all he did was reboot again damn. Is my timing wrong? 3 times down is wrong i guess if i start from position 1. Just as a reminder i can't see anything.
Volume down twice to highlight AP fastboot, up once to select. Also, you want the phone to be completely off to boot into fastboot mode. There is no way to REboot into the boot menu
Sent from my XT912
LuckiestNut419 said:
Volume down twice to highlight AP fastboot, up once to select. Also, you want the phone to be completely off to boot into fastboot mode. There is no way to REboot into the boot menu
Sent from my XT912
Click to expand...
Click to collapse
What i did now is open the back, disconnect the battery and connect it again, use vol down button + power button for ten sec and then plug it into the computer. Nothing happens, atleast not on the computer, the phone shows a white light in the top left corner. It stays on even if i disconnect the cable.
Holding for that long can cause a reboot. Try holding the vol down and power for like... three seconds, after reconnecting the battery. Also, are you using an OEM motorola cable? And, have you ever used RSDlite? Have you prepared for flashing with the appropriate fastboot sbf files? Once the computer recognizes the phone, you'll want to have the motorola drivers installed, RSDlite ready, and the right sbf file ready.\
EDIT
Even if you do access the fastboot menu, if the phone believes the battery is too low, it will not allow the pc and phone to connect. The screen should say:
AP Fastboot Flash Mode (S)
0A.77
eMMC Info: Size 16G
To return to normal mode- first press power key to power down
Device is LOCKED. Status code: 0
Battery OK
OK to Program
Connect USB
Data Cable
I realize that your screen isn't displaying anything, but this menu is what will restrict you from flashing if the battery is low. Instead of Battery OK, it will say Low Battery
LuckiestNut419 said:
Holding for that long can cause a reboot. Try holding the vol down and power for like... three seconds, after reconnecting the battery. Also, are you using an OEM motorola cable? And, have you ever used RSDlite? Have you prepared for flashing with the appropriate fastboot sbf files? Once the computer recognizes the phone, you'll want to have the motorola drivers installed, RSDlite ready, and the right sbf file ready.\
EDIT
Even if you do access the fastboot menu, if the phone believes the battery is too low, it will not allow the pc and phone to connect. The screen should say:
AP Fastboot Flash Mode (S)
0A.77
eMMC Info: Size 16G
To return to normal mode- first press power key to power down
Device is LOCKED. Status code: 0
Battery OK
OK to Program
Connect USB
Data Cable
I realize that your screen isn't displaying anything, but this menu is what will restrict you from flashing if the battery is low. Instead of Battery OK, it will say Low Battery
Click to expand...
Click to collapse
I know how to use rsdlite, because i flashed my xt910 with it. The battery could be a problem. I have it fully charged and will try it again now, but if that doesn't work i propably need a factory cable. I think i made it into the fastboot mode in previous tries but got stuck because of the battery status.
Edit: Reconnecting the battery and getting into fastboot mode seems to work, but connecting the cable gives me the white light and nothing else works.
So your computer is still not recognizing the phone, even when it seems to be in fastboot?
Sent from my XT912
LuckiestNut419 said:
So your computer is still not recognizing the phone, even when it seems to be in fastboot?
Sent from my XT912
Click to expand...
Click to collapse
Yep, no reaction from the os and nothing listed in adb devices or fastboot devices.
Assuming the battery power is adequate, the next and only solution is the proper data cable (OEM).
If the battery is low, you'll need to either use a TBH factory data cable, or the workaround of hard wiring a stripped usb cable screwed to the battery terminals on the phone. Once the phone identifies a good power source, it will allow a pc connection.
Sent from my XT912
EDIT
BP SBF Flash is the fourth option down, out of seven total, I believe. If you can boot to the main boot menu, and click vol down 3 times, you'll select this option. As I recall, I was able to confirm my phone, usb cable, and pc were all communicating. My *pc identified an unknown device being connected, even with a nearly dead battery. Then I knew I just needed a power supply. I'm not sure what this option is for, but it told me what I needed to know.
LuckiestNut419 said:
Assuming the battery power is adequate, the next and only solution is the proper data cable (OEM).
If the battery is low, you'll need to either use a TBH factory data cable, or the workaround of hard wiring a stripped usb cable screwed to the battery terminals on the phone. Once the phone identifies a good power source, it will allow a pc connection.
Sent from my XT912
EDIT
BP SBF Flash is the fourth option down, out of seven total, I believe. If you can boot to the main boot menu, and click vol down 3 times, you'll select this option. As I recall, I was able to confirm my phone, usb cable, and pc were all communicating. My phone identified an unknown device being connected, even with a nearly dead battery. Then I knew I just needed a power supply. I'm not sure what this option is for, but it told me what I needed to know.
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Click to collapse
Ok i will try that until i get one of these cables or adapters.
Is it possible to use adb via recovery or do i need a custom recovery for that? I am not sure if i need to unlock the bootloader via motorola( have to use fastboot for unlock), that would as far as i know reset the stock rom(if i need a custom rom).
basucally flashed a rom and it went bad and my phone wont boot, i can only get it into fastboot but plugging it in and holding volume up and i have no power button, so i cant select boot into recovery, is there any way i can through the cmd?
*edit*
I figured out how to boot to recovery, download a recovery img, and in fastboot cmd you go
Fastboot flash recovery_image_name.IMG
Then
Fastboot boot recovery_image_name.IMG
chansecombs said:
basucally flashed a rom and it went bad and my phone wont boot, i can only get it into fastboot but plugging it in and holding volume up and i have no power button, so i cant select boot into recovery, is there any way i can through the cmd?
Click to expand...
Click to collapse
Depends on which version of the official software/firmware you had installed. You might check out this:
http://forum.xda-developers.com/showthread.php?t=2230106
If you were on a KK set up then that recovery won't work.
es0tericcha0s said:
Depends on which version of the official software/firmware you had installed. You might check out this:
http://forum.xda-developers.com/showthread.php?t=2230106
If you were on a KK set up then that recovery won't work.
Click to expand...
Click to collapse
all i want to know is, when im in fastboot is there some kind of command line or any other way i can select recovery mode besides the power button? my power button is broken, and i cant turn on my phone to reboot into recovery due to me soft bricking it.
chansecombs said:
all i want to know is, when im in fastboot is there some kind of command line or any other way i can select recovery mode besides the power button? my power button is broken, and i cant turn on my phone to reboot into recovery due to me soft bricking it.
Click to expand...
Click to collapse
So when you turn it off, leave it set there for a bit (guess you would have to let it die at this point...), and hold Volume Up and plug in the USB cable to the PC - you don't get into Download Mode? But as far as booting to recovery without the power button and not able to boot into the OS...I can't think of a way. There are no fastboot commands to get to recovery and without it booting to anything but fastboot, there is no way to utilize adb commands either.
Hi,
I own galaxy s3 i9000, currently on custom rom. My phone automatically rebooted and got stuck on bootloop. If I am able to enter in recovery mode, i can wipe cache(which may can help to get out of bootloop). But the problem is I am unable to enter into recovery mode because phone's volume up button is not working and my phone auto reboots every time after power off or reinserting battery. Is there any other way to clear cache or enter into recovery mode?
I dont want to flash my stock rom via odin (because i didnt backup my some important apps and msgs), this will be my last option.
sorry for my bad english
The normal way I get my phone into recovery mode from the PC is using ADB and the command: "adb reboot recovery". However, I bet this won't work in your case for one of several possible reasons: depending on when the bootloop occurs in the boot process, the phone may never reach a point where ADB is able to see your phone in the first place; if this is happening after a flashing a new custom ROM, then also it's unlikely that USB debugging is turned and the PC is not yet authorized to connect with it over ADB.
Another thought, could your power button be stuck down? I had a GS3 SCH-I535 several years ago and the power switch went bad on it, it would keep rebooting, shutting down randomly, or I'd be unable to turn on the screen. I had a switch replaced and it was fine after that. I don't think it's normal for the phone to automatically boot up when you reinsert the battery, that's why I bring that up. Maybe you can wiggle the power button a bit and try to unstick it if that's the case.
I tried to remove and stick back the power button again, but still it didnt worked. By the way fixing power button will not help me to get into recovery mode as my phone's volume up button is also not working, and recently I found out that I cant enter into download mode too because when I press respective buttons (volume down + home + power) for download mode, it gives warning msg to click 'volume up' buttton to enter into download mode or 'volume down' to reboot. Therefore again volume up button is required to enter into download mode too. So the only option remained for me is to visit service center and fix the volume up button.
I accidently flashed the lineage 16 recovery instead of lineage 17.1 recovery. I tried to install the 17.1 update through updater but my phone stuck into recovery mode. Neither I can boot into bootloader nor to android. I can''t flash anything. Power + volume down and connect the cable also not working to go into bootloader. Even bootloader option within the recovery also brings me back to recovery mode. ...adb devices command is also showing "device offline". Any help will be appreciated.
you should start from the beginning
is your bootloader still unlocked?
stukka2006 said:
you should start from the beginning
is your bootloader still unlocked?
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Click to collapse
I can't go into fastboot mode. Is there any other way to check it?
Thank you @stukka2006 for replying me. I guess I saved my phone. So here what I did-
1. Extracted the stock firmware (Luckily I had one but can be found in the forum) and copied the dload folder to sdcard (as I was not able to access internal storage). (@stukka2006 your hint to start from the beginning)
2. Power off the phone and pressed Both volume buttons + power button simultaneously. After the vibration I left the power button while still holding both vol buttons till software update screen appears. But software update failed. So I just touched the reboot now option. The phone rebooted to fastboot mode.
3. I installed TWRP but was not able to reboot to recovery through commands and system reboot command brings me back to fastboot mode. So I again power off the device with cable connected and pressed both vol buttons. This time phone showed recovery screen (Should have worked with normal button shortcuts also, I guess) and I flashed the rom and rebooted normally.
Everything is working fine now except that I lost the data.
Happy you got all clear my friend !!!
[email protected]@wk said:
Thank you @stukka2006 for replying me. I guess I saved my phone. So here what I did-
1. Extracted the stock firmware (Luckily I had one but can be found in the forum) and copied the dload folder to sdcard (as I was not able to access internal storage). (@stukka2006 your hint to start from the beginning)
2. Power off the phone and pressed Both volume buttons + power button simultaneously. After the vibration I left the power button while still holding both vol buttons till software update screen appears. But software update failed. So I just touched the reboot now option. The phone rebooted to fastboot mode.
3. I installed TWRP but was not able to reboot to recovery through commands and system reboot command brings me back to fastboot mode. So I again power off the device with cable connected and pressed both vol buttons. This time phone showed recovery screen (Should have worked with normal button shortcuts also, I guess) and I flashed the rom and rebooted normally.
Everything is working fine now except that I lost the data.
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Click to collapse
You are quite lucky to have the stock ROM.
methuselah said:
You are quite lucky to have the stock ROM.
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Click to collapse
Yeah...who knows when you need it.