LG G2 stuck at "Fastboot Mode started udc_started()"

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marchrius

Senior Member
Jul 9, 2013
160
23
Hi everyone. A friend of mine has got a problem with his G2:

I have an LG G2 D802 with rayglob flex 3.5 custom rom. Yesterday I tried to install a custom kernel (dorminax 2.1):

1) I downloaded the kernel for lg g2 802
2) entered in twrp recovery
3) Instal - Flash of kernel 2.1
4) after a few seconds a "Succesfull" message appeared
5) I rebooted
6) phone got stuck with: Fastboot Mode started
udc_started()
at the top left corner

He said that he can't enter the recovery anymore by pressing volume down + power, it doesn't work.

Have you guys any tips? He'd like to recover his data as well...
 

jaidev.s

Senior Member
Nov 27, 2011
1,307
367
I guess u installed the wrong version of Dorimanx, download the correct version

Sent from my LG-D802 using XDA Premium 4 mobile app
 
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marchrius

Senior Member
Jul 9, 2013
160
23
How to flash it if the device doesn't boot even in recovery?
 
Last edited:

jaidev.s

Senior Member
Nov 27, 2011
1,307
367
It'll boot into recovery, just hold and press power and vol down key and reboot.

Sent from my LG-D802 using XDA Premium 4 mobile app
 

marchrius

Senior Member
Jul 9, 2013
160
23
So, the suggestion is... boot into recovery, then...? Wipe everything and restore the backup (if there's one)?
 

jaidev.s

Senior Member
Nov 27, 2011
1,307
367
Well he can push the correct kernel via adb and flash it

Sent from my LG-D802 using XDA Premium 4 mobile app
 

jaidev.s

Senior Member
Nov 27, 2011
1,307
367
It's easy, well Google it, u will find videos explaining the same

Sent from my LG-D802 using XDA Premium 4 mobile app
 
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ndlong75

New member
Sep 19, 2013
4
3
there is a thread to make your phone "back to stock", then you will be fine.

Sent from my LG-D800 using XDA Premium 4 mobile app
 

marchrius

Senior Member
Jul 9, 2013
160
23
Thanks everyone! He successfully entered into recovery (just wrong timing I guess) and flashed the right kernel (located on an usb pen drive attached with otg cable).

He thank you very much. ;)
 

darknessmessiah

Senior Member
Dec 14, 2009
341
115
I was having the same issue... Until I noticed that it was the power cable that was messing with my attempts to enter recovery!

So here I leave my tip! Do the power button combination without any connection! :good:
 

indyvette

Senior Member
Sep 24, 2012
88
3
It'll boot into recovery, just hold and press power and vol down key and reboot.

Sent from my LG-D802 using XDA Premium 4 mobile app

Mine won't boot into anything, it immediately cuts into fastboot mode

---------- Post added at 09:29 PM ---------- Previous post was at 09:27 PM ----------

My phone has done the same thing an when I hit the buttons to go to recovery mode, recovery mode just flashes up an it goes back to the fastboot screen again

Were you able to successfully get in recovery mode? I try to combo multiple times and it still goes straight to fastboot mode
 

bender_007

Senior Member
Dec 6, 2010
5,091
3,520
Zagreb
Google Pixel 4
Mine won't boot into anything, it immediately cuts into fastboot mode

---------- Post added at 09:29 PM ---------- Previous post was at 09:27 PM ----------



Were you able to successfully get in recovery mode? I try to combo multiple times and it still goes straight to fastboot mode

Can you enter download mode? If not you should also use fastboot to flash your partitions.
 

nauman284

Senior Member
Apr 12, 2013
137
20
Mine won't boot into anything, it immediately cuts into fastboot mode

---------- Post added at 09:29 PM ---------- Previous post was at 09:27 PM ----------



Were you able to successfully get in recovery mode? I try to combo multiple times and it still goes straight to fastboot mode

is your problem solved yet?
 

scottanz

Member
Jul 31, 2013
5
0
I have just flashed the wrong kernel due to my carelessness and complacency and managed to fix this issue thanks to this thread!

Make sure no power cables are plugged in as it will interfere the process to boot into recovery mode.
Hold power button down until the phone is completely off, keep holding it there for another 10 seconds.
Hold volume down and power button together now until LG screen comes out. let go of power button only

If all goes well you should see TWRP recovery and thank TWRP team for their great work!:)
 

defian

Member
Sep 26, 2011
28
1
flashed the right kernel (located on an usb pen drive attached with otg cable) sorry how to do it ? any link ? thanks
 

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  • 1
    I guess u installed the wrong version of Dorimanx, download the correct version

    Sent from my LG-D802 using XDA Premium 4 mobile app
    1
    It's easy, well Google it, u will find videos explaining the same

    Sent from my LG-D802 using XDA Premium 4 mobile app