Develop Bugs

Help please bootloop

Hey guys I just picked up a Galaxy Tab 3 Lite. I tried rooting it and installing a custom rom but ran into a problem. The tablet will not power on but if I plug it in to the computer or wall outlet, it turns on and off with the Firmware upgrade encountered an issue message. It literally flashes on and off with this message. I have tried getting into download mode and cwr but no luck. I also tried Kies but since the tablet wont stay on, it tells my my device is not supported. I spent countless hours searching the web for a solution. Anyone have any ideas?
This is the screen that just bootloops nonstop. http://imgur.com/YhvmL85

DozeBeatS said:
Hey guys I just picked up a Galaxy Tab 3 Lite. I tried rooting it and installing a custom rom but ran into a problem. The tablet will not power on but if I plug it in to the computer or wall outlet, it turns on and off with the Firmware upgrade encountered an issue message. It literally flashes on and off with this message. I have tried getting into download mode and cwr but no luck. I also tried Kies but since the tablet wont stay on, it tells my my device is not supported. I spent countless hours searching the web for a solution. Anyone have any ideas?
This is the screen that just bootloops nonstop. http://imgur.com/YhvmL85
Click to expand...
Click to collapse
Is that not download mode... does it say odin mode at the top??
---------- Post added at 09:58 PM ---------- Previous post was at 09:56 PM ----------
zach61797 said:
Is that not download mode... does it say odin mode at the top??
Click to expand...
Click to collapse
Download samsung kies and do what it says it will take you back to stock

zach61797 said:
Is that not download mode... does it say odin mode at the top??
---------- Post added at 09:58 PM ---------- Previous post was at 09:56 PM ----------
Download samsung kies and do what it says it will take you back to stock
Click to expand...
Click to collapse
The tablet will do nothing but turn on and off when I plug it in to the wall or the pc. I cannot make it do anything. When its not plugged in to anything it will not power on.

DozeBeatS said:
The tablet will do nothing but turn on and off when I plug it in to the wall or the pc. I cannot make it do anything. When its not plugged in to anything it will not power on.
Click to expand...
Click to collapse
Have you tried to restore with kies

zach61797 said:
Have you tried to restore with kies
Click to expand...
Click to collapse
I have. Since the tablet just continues to turn off and on, Kies cannot establish a solid connection to do anything.

[Q] LG G3 Unbricking steps clarification

This Problem is solved and worked successfully
wouldn't fix or unbrick my phone without the help of these guys , all my respect goes to ::
@willcracker
@os_man
@setul34
@l33tlinuxh4x0r
@sd_shadow
if this thread was useful to you please donate to them with a cup of coffee
Hi XDA
i didn't want to make it a long thread but i have to , bare with me here :
first i followed that topic on XDA : http://forum.xda-developers.com/lg-g3/general/guide-update-to-lollipop-root-bumpd-twrp-t3048845
i tried to install twrp with imageprep but after rebooting it says secure booting error or something like that
i also tried this after that but with the same error https://www.youtube.com/watch?v=2we1YDc5JGU
but always the mobile was rebooting and opened like nothing happened
so i searched the internet for a solution i tried this one : https://www.youtube.com/watch?v=4YZ0i6aFsfM
but i guess the file attached weren't compatible so it ends up with an error before doing anything so there was no option except this : http://forum.xda-developers.com/lg-g3/help/help-secure-boot-error-trying-to-boot-t3054977
and here comes the misery , cuz i just got my phone and after the step while you write the commands in the android terminal emulator
and BOOM everything went black
NO BOOT , NO RECOVERY , NO DOWNLOAD MODE , absolutely NOTHING :crying: i freaked out a lot , but after searching for 3 days i've found this xda thread : http://forum.xda-developers.com/lg-g3/general/unbrick-lg-g3-qhsusbbulk-qualcomm-9008-t3072091
sadly i'm now on LGE AndroidNet USB port (com 11)
and what i'm getting from this thread that i've to short circuit two pins in my LG G3 Motherboard so i can switch LGE AndriodNet USB Port to Qualcomm 9008
Before anything else i want to make sure that i'm on the right track so just want to approve these steps :
1- open the phone
2- to make the device read as "Qualcomm 9008" not as "LGE AndriodNet USB Modem" i have to :
a- short cut the pins in the photo you provided "without the battery" for 3 minutes
b- connect the phone with the USB cable in the computer "without the battery"
c- my PC will detect the device as "Qualcomm"
3- after that i'm good to use your LG G3 unbrick method
are these steps right ?
just need to know when to plug in my battery and when i connect the phone with the cable , the pins must be connected or i can just connect the pins for 3 minutes and then remove the connection between them ?
Please anyone answers me with the exact steps or give me a short video on how to do it alone because i'm still rookie at these stuff
thanks xda members :fingers-crossed:

Am i posting in the wrong section or what ?

Evilix said:
Am i posting in the wrong section or what ?
Click to expand...
Click to collapse
If you have asked for help in the threads you have linked, without receiving a response, you can try quoting someone that may know or use @ before their user name like @sd_shadow
This is a very technical and likely very few people have even attempted it, so it may be awhile before the right people log in to XDA and see your post.
This thread will be moved to G3 Q&A, Help & Troubleshooting

I too am having issues with my LG G3 trying this method but the thread linked has been closed.

Hi, i just solved this problem like just an hour before. And yes all your steps are right but make sure you select same port in the tool too,
And do not remove the connection between pins until your device recognize as Qualcomm
---------- Post added at 09:13 PM ---------- Previous post was at 09:11 PM ----------
You can use my thread for more help. os_man help me a lot with this problem
http://forum.xda-developers.com/lg-g3/help/enter-download-mod-boot-recovery-t3127547

setul34 said:
Hi, i just solved this problem like just an hour before. And yes all your steps are right but make sure you select same port in the tool too,
And do not remove the connection between pins until your device recognize as Qualcomm
---------- Post added at 09:13 PM ---------- Previous post was at 09:11 PM ----------
You can use my thread for more help. os_man help me a lot with this problem
http://forum.xda-developers.com/lg-g3/help/enter-download-mod-boot-recovery-t3127547
Click to expand...
Click to collapse
How long did it take for your computer to recognize the phone? I'm having trouble shorting the pins... Very small points that you have to hit. Also does the screen turn on or stay off when you do it correctly?

l33tlinuxh4x0r said:
How long did it take for your computer to recognize the phone? I'm having trouble shorting the pins... Very small points that you have to hit. Also does the screen turn on or stay off when you do it correctly?
Click to expand...
Click to collapse
it took me like 1-2 minute after i connect it to proper point. and get recognizing it in pc. and phone will still off.

setul34 said:
it took me like 1-2 minute after i connect it to proper point. and get recognizing it in pc. and phone will still off.
Click to expand...
Click to collapse
Ok thanks for the heads up... I was thinking that it was supposed to be about 3 seconds but 2 minutes I will try again.

l33tlinuxh4x0r said:
Ok thanks for the heads up... I was thinking that it was supposed to be about 3 seconds but 2 minutes I will try again.
Click to expand...
Click to collapse
try this one http://forum.xda-developers.com/attachment.php?attachmentid=3334601&d=1432746694
i tried others to but nothing happened ... and then i got recognize when i connect this two points
and also make sure you have correct drivers installed.

l33tlinuxh4x0r said:
How long did it take for your computer to recognize the phone? I'm having trouble shorting the pins... Very small points that you have to hit. Also does the screen turn on or stay off when you do it correctly?
Click to expand...
Click to collapse
THANKS ALL for replying and i will try again 2 mins this time

setul34 said:
try this one http://forum.xda-developers.com/attachment.php?attachmentid=3334601&d=1432746694
i tried others to but nothing happened ... and then i got recognize when i connect this two points
and also make sure you have correct drivers installed.
Click to expand...
Click to collapse
thanks that was an instant com port when I plugged in the USB cable.
Now when I try to flash it says "device not found in dload trying flash programmer." when using boarddiag and error 64 in lgflashtool

l33tlinuxh4x0r said:
thanks that was an instant com port when I plugged in the USB cable.
Now when I try to flash it says "device not found in dload trying flash programmer." when using boarddiag and error 64 in lgflashtool
Click to expand...
Click to collapse
so are you done with BoardDiag tool? and can you go in download mode ?

setul34 said:
so are you done with BoardDiag tool? and can you go in download mode ?
Click to expand...
Click to collapse
No I get an error with BoardDiag tool mentioned above.
"device not found in dload trying flash programmer."

l33tlinuxh4x0r said:
No I get an error with BoardDiag tool mentioned above.
"device not found in dload trying flash programmer."
Click to expand...
Click to collapse
have you checked your port# in device manager ? and in BoardDiag tool ? are those same ?
---------- Post added at 10:41 PM ---------- Previous post was at 10:37 PM ----------
l33tlinuxh4x0r said:
No I get an error with BoardDiag tool mentioned above.
"device not found in dload trying flash programmer."
Click to expand...
Click to collapse
Maybe @os_man can help you with this error. i'm exactly not sure about this error.

is someone stuck at unknown USB device (something something) ??

I got past the error... Now I flashed the partitions. How do I get into download mode? Do I unplug the device? Do I need to plug in the battery for download mode?

l33tlinuxh4x0r said:
I got past the error... Now I flashed the partitions. How do I get into download mode? Do I unplug the device? Do I need to plug in the battery for download mode?
Click to expand...
Click to collapse
okay now u can put your battery in. and push powerbutton + volume up button at the same time
and at the LG LOGO u can release power button but continue pressing volume up button.
---------- Post added at 11:01 PM ---------- Previous post was at 10:58 PM ----------
Evilix said:
is someone stuck at unknown USB device (something something) ??
Click to expand...
Click to collapse
thats because you need to connect two point. and also make sure u have installed qualcomm drivers.

setul34 said:
okay now u can put your battery in. and push powerbutton + volume up button at the same time
and at the LG LOGO u can release power button but continue pressing volume up button.
---------- Post added at 11:01 PM ---------- Previous post was at 10:58 PM ----------
thats because you need to connect two point. and also make sure u have installed qualcomm drivers.
Click to expand...
Click to collapse
please give me the right working link for the qualcomm drivers , thanks in advance

setul34 said:
okay now u can put your battery in. and push powerbutton + volume up button at the same time
and at the LG LOGO u can release power button but continue pressing volume up button.
---------- Post added at 11:01 PM ---------- Previous post was at 10:58 PM ----------
thats because you need to connect two point. and also make sure u have installed qualcomm drivers.
Click to expand...
Click to collapse
here are the drivers http://www.androidbrick.com/?wpdmdl=3173 both 32 bit and 64 bit but remember that you have to turn off driver signing if using a 64 bit OS.
I'm back to the same thing that I had before just the lg logo and it keeps rebooting.

l33tlinuxh4x0r said:
I'm back to the same thing that I had before just the lg logo and it keeps rebooting.
Click to expand...
Click to collapse
try to go back in downloading mod. if you cant then can u tell me what step u did in BoardDiag tool
---------- Post added at 11:15 PM ---------- Previous post was at 11:11 PM ----------
Evilix said:
please give me the right working link for the qualcomm drivers , thanks in advance
Click to expand...
Click to collapse
here you go.
http://www.androidbrick.com/download/qdloader-hs-usb-driver/

Unable to enter recovery mode. USB icon is coming up

Dear folks, since yesterday i was not able to enter recovery mode. If i press vol up+ power then i can see a small USB icon with a white bar below that. After which nothing is happening. Powen button when pressed continously for 5sec will turn off my mobile and mobile starts again. Mobile is working perfectly. Only issue is unable to enter recovery mode. Can some one help please.....................

have you tried > http://www.asus-zenfone.com/2015/03/zenfone-2-how-to-enter-recovery-wipe.html ?
need to follow this exactly.. finger dance can be tricky but it will work...

I am aware of that bro.i tried many times.i was on custom rom earlier too. Now this us the first time i am seeing this USB icon with white bar below it. Phone is not entering recovery mode.

are u trying to restore ?

Pu$$nBooT$ said:
are u trying to restore ?
Click to expand...
Click to collapse
I am trying to reinstall the latest Global file using ADB

http://www.asus-zenfone.com/2015/12/how-to-downgrade-asus-zenfone-2-firmware.html
try this, ^^^
i followed this method to fix my issue

Try to flash the recovery again.

Pu$$nBooT$ said:
http://www.asus-zenfone.com/2015/12/how-to-downgrade-asus-zenfone-2-firmware.html
try this, ^^^
i followed this method to fix my issue
Click to expand...
Click to collapse
Bro you are not understanding. If the mobile is able to enter recovery mode then i can do all those things, mobile itself is not entering recovery mode. so there is no point in flashing usinng ADB

Using that link you can fix issues ... need to follow it to the letter.. called reading...
---------- Post added at 09:33 AM ---------- Previous post was at 09:30 AM ----------
Follow the guide like it says. You will fix the issues and dont plug the phone in a usb3 port, always use 2.0

Pu$$nBooT$ said:
Using that link you can fix issues ... need to follow it to the letter.. called reading...
---------- Post added at 09:33 AM ---------- Previous post was at 09:30 AM ----------
Follow the guide like it says. You will fix the issues and dont plug the phone in a usb3 port, always use 2.0
Click to expand...
Click to collapse
Downloaded UL-Z00A-WW-2.20.40.174-user.zip and renamed the file to UL-Z00A-WW-2.20.40.178-user.zip.
Copied the file and pasted into internal memory. System recognized the update file and asked me to update. Updated and mobile started normally. Now everything working fine, i was able enter recovery mode.
Hope this helps someone who encounters such type of issue,

d855 stuck at boot screen after kdz MM flash

Hello guys,
I need your help on a problem. I've been away from Android development and I can not find a workaround for this. The problem is LG G3 d855 is stuck at boot screen and the led sensors lighting up. Here's what caused the problem:
Today I wanted to upgrade my phone to stock 6.0 to try. I installed a stock 6.0.kdz file by LG Flash Tool 2014. But somehow at installation it said can not connect to server, so I quit the application which I shouldn't have done so. I should've just sit and wait. Anyway, then I lost Download Mode and phone wasn't booting up at all. When I tried to boot up I got the error "boot verification Fail -cause MISMATCH_SIG_LEN". Somehow I managed LG Flash Tool 2014 to see my phone as Qualcomm device and started to install again (it took me briefly 3 hours if anyone ever face some problem or need help, I'll be posting a guide about it) the server error popped up again and I just ignored it and boy it was loading both on my phone and on my computer as well!
However, on the phone the process stopped at 4% and on pc it stopped at 13%. Then I got an error saying something like unexpected error. I tried retry countless times but it didn't work. So I had to say exit and quit the application but somehow, as I disconnected frustrated the phone started to boot, a little droid came up as if it came after each update then the normal screen.
I was quite happy because even the led started to beam up so I was hopeful it would start but however it's stuck now. I tried going into download mode and now I get "boot verification Fail -cause MISMATCH_SIG_LEN" error on there and it just restarts again.
I searched for hours and hours to find a workaround and I'm really desperate! I know if the screen boots up at least, it can not be so bad to fix. Please someone help me!

update:
somehow I can get my pc to see the device as qualcomm hs-usb qdloader 9008 (COM3) but BoardDiag now says "device was not found in dload trying flash programmer"
and still no answer from anyone.. I am still trying please someone help me out...

tomasita111 said:
update:
somehow I can get my pc to see the device as qualcomm hs-usb qdloader 9008 (COM3) but BoardDiag now says "device was not found in dload trying flash programmer"
and still no answer from anyone.. I am still trying please someone help me out...
Click to expand...
Click to collapse
http://forum.xda-developers.com/lg-g3/general/bricked-lg-g3-owner-qualcomm-9008-mode-t3362361
Try this i am not sure it work or not...

Anik49 said:
http://forum.xda-developers.com/lg-g3/general/bricked-lg-g3-owner-qualcomm-9008-mode-t3362361
Try this i am not sure it work or not...
Click to expand...
Click to collapse
nope that doesn't work either... also when my phone is on boot logo constantly my pc sees the device as LGE AndroidNet USB Serial Port. Any suggestions?

tomasita111 said:
nope that doesn't work either... also when my phone is on boot logo constantly my pc sees the device as LGE AndroidNet USB Serial Port. Any suggestions?
Click to expand...
Click to collapse
I am also same situation but i can enter download mode try to enter download mode.....turn off your phone just press volume up and connect cable....try it...
---------- Post added at 10:39 PM ---------- Previous post was at 10:17 PM ----------
tomasita111 said:
nope that doesn't work either... also when my phone is on boot logo constantly my pc sees the device as LGE AndroidNet USB Serial Port. Any suggestions?
Click to expand...
Click to collapse
What happend? you can enter fatboot mode or not.
http://m.blog.naver.com/kangmincraft/220626785379....try it but it's for f460 don't use any file from their.....

Anik49 said:
I am also same situation but i can enter download mode try to enter download mode.....turn off your phone just press volume up and connect cable....try it...
---------- Post added at 10:39 PM ---------- Previous post was at 10:17 PM ----------
What happend? you can enter fatboot mode or not.
http://m.blog.naver.com/kangmincraft/220626785379....try it but it's for f460 don't use any file from their.....
Click to expand...
Click to collapse
LGFlashTool fails, so does LGMobile Support Tool.. I am stuck on download mode right now, weird huh?

tomasita111 said:
LGFlashTool fails, so does LGMobile Support Tool.. I am stuck on download mode right now, weird huh?
Click to expand...
Click to collapse
If you are on MM you have to use lg up to flash kdz...choose upgrade option in lg up select kdz....than select refurbish and flash.....
---------- Post added at 01:42 AM ---------- Previous post was at 01:36 AM ----------
Anik49 said:
If you are on MM you have to use lg up to flash kdz...choose upgrade option in lg up select kdz....than select refurbish and flash.....
Click to expand...
Click to collapse
Also lg flash tool shows error but it's not a problem. Just ignore it or do nothing flash tool do it's work. Lg flashtool error is a known issue.

Anik49 said:
If you are on MM you have to use lg up to flash kdz...choose upgrade option in lg up select kdz....than select refurbish and flash.....
---------- Post added at 01:42 AM ---------- Previous post was at 01:36 AM ----------
Also lg flash tool shows error but it's not a problem. Just ignore it or do nothing flash tool do it's work. Lg flashtool error is a known issue.
Click to expand...
Click to collapse
no the error I'm getting isn't server error, it gives an error and without even me clicking ok or retry it just stops..

It's been 36 hours now. And still no luck. Dunno what to do at all..

tomasita111 said:
It's been 36 hours now. And still no luck. Dunno what to do at all..
Click to expand...
Click to collapse
You tried lg up... Try to use lg up for flash

S4 mini does not turn on, and does not work recovery mode. Works only download mode

Hello,
I have a problem with a s4 mini i9195.
The phone dones not start and don't start the recovery mode.
I try to flash a firmware with Odin, but don't worws, Odin it blocks on:"initialization..." or "SetupConnection...".
I think this is due to the fact that it is not active the USB Debugging on the phone.
It is possible? if yes, how i can fix the problem? can i activate the usb debugging in download mode?
Thanks in advance

Same problem here. Even playing around with pit-files etc didn't help.
Have you found a solution?

You guys might have tried it but i will still say it. Try antivirus off, Install kies and samsung drivers. Close Kies from task manager. Run odin as admin and Change USB slot or try another USB cable.
I got this initialize error two times and it scared the **** out of me, i thought my phone is gone. but by turning off antivirus and changing usb slot it work.
Hope you guys fix your phone

did anybody resolved this problem?
---------- Post added at 09:41 PM ---------- Previous post was at 09:15 PM ----------
does anybody resolved this problem?