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PB, LG optimus 3D only boot in CWM

Hello everbody, I have a problem with my phone an I hope you will be able to help me. I want to appologies myself for my english, I'm French
My phone only boot in the CWM menu (where i can choose if y want reset the factory profil,...) I hope you understand me.
I would like to unistal CWM but i don't know how.
I try installing o stock recovery from my SD card but it didn't work.
I really hope you will be able to help me if you need any other information juste ask

hello everyone, I am experiencing the same problem. After the OTA update when the phone restarted, it ended in the CWM menu and it is impossible to restart the system it always ends in the recovery mode, wanting an update.zip file that doesn't exist. Can anyone help please

Try to update with this method
http://forum.xda-developers.com/showpost.php?p=18082599&postcount=1
Plug phone in dowload mode (power off phone then vol up + power,if you see lg logo release buttons)

adixtra said:
Try to update with this method
http://forum.xda-developers.com/showpost.php?p=18082599&postcount=1
Plug phone in dowload mode (power off phone then vol up + power,if you see lg logo release buttons)
Click to expand...
Click to collapse
As i said before, the phone stays in the cwm recovery menu and doesn't do anything else. If i turn off the phone and then restart it while pressing the power button and the + button volume, it is detected by the pc and installs the drivers, but nothing else.
If i try to use your method, it doesn't communicate with the pc, phone disconnected, unavailable.
Isn't there any other way..

Ok I've managed to flash the phone. just needed windows xp to work correctly with the drivers.
thanks

adixtra said:
Try to update with this method
http://forum.xda-developers.com/showpost.php?p=18082599&postcount=1
Plug phone in dowload mode (power off phone then vol up + power,if you see lg logo release buttons)
Click to expand...
Click to collapse
Thanks to take time to help me. I've try following the step on your link but on the last step, when the official LG flasher is running, I have an message saying that my phone isn't connect with my computer.

Try to reinstall drives.Remove battery, plug phone to computer, press vol+ button and insert battery.

Is the phone suppose to turn on when i put the battery in?

If you put battery and you keep VOL up ,the phone should start in download mode.

I've succesfuly did it, my phone is working again, thanks a lot.

Please tell me i didnt kill my phone!!!

Ok so my fiancé pointed out that her phone got an update and I liked how it looked so I wanted to update mine. but I couldn't because of root. and so since I never use my root I went into super su and hit the unroot button and then my phone reset I have been in bootloop ever since. before someone suggests NO I cannot use ODIN because it wont register my phone being plugged in. YES I have the proper driver installed I triple checked and no my computer does not register the phone either. is there anything that I can do?

You didnt kill your phone!!!
The reason of bootloop is that when you press unroot in superSU it also restores unpatched stock boot.img which doesn't boot with custom recovery.
Hold power + home + volume up + volume down for 7 seconds to hard reboot your phone and enter download mode confirmation page. Press volume down to exit downloading mode and immediately hold volume up + power + home until you enter recovery. Do a factory reset.
Enter download mode confirmation page again by same method and press volume up, connect phone to your PC. Now if Odin doesn't recognize your phone then that 100% Driver or USB Cable problem. Flash latest official firmware and you should be good to go.

Aria.A97 said:
You didnt kill your phone!!!
The reason of bootloop is that when you press unroot in superSU it also restores unpatched stock boot.img which doesn't boot with custom recovery.
Hold power + home + volume up + volume down for 7 seconds to hard reboot your phone and enter download mode confirmation page. Press volume down to exit downloading mode and immediately hold volume up + power + home until you enter recovery. Do a factory reset.
Enter download mode confirmation page again by same method and press volume up, connect phone to your PC. Now if Odin doesn't recognize your phone then that 100% Driver or USB Cable problem. Flash latest official firmware and you should be good to go.
Click to expand...
Click to collapse
Nice tut! Anyway, if he still can't get recognized by PC, i suggest to try different PC, i had the same problem a while ago, my pc wouldn't recognize my phone in odin no matter what. Then i checked on my friends PC and it worked like a charm. It must be USB ports problems.

if your pc does see your phone but the odin still fails you can just use smartswitch and do emergency recovery tyoe your model number and imei in and sit back and relax and you are done

Thank YOU!!!!!!
Aria.A97 said:
You didnt kill your phone!!!
The reason of bootloop is that when you press unroot in superSU it also restores unpatched stock boot.img which doesn't boot with custom recovery.
Hold power + home + volume up + volume down for 7 seconds to hard reboot your phone and enter download mode confirmation page. Press volume down to exit downloading mode and immediately hold volume up + power + home until you enter recovery. Do a factory reset.
Enter download mode confirmation page again by same method and press volume up, connect phone to your PC. Now if Odin doesn't recognize your phone then that 100% Driver or USB Cable problem. Flash latest official firmware and you should be good to go.
Click to expand...
Click to collapse
You are a genius It was my cable that I was using... I was sitting here reading your post and I'm thinking to my self "yeah like I haven't tried that already thanks for nothing." then I saw the part about my cable and said its worth a shot. thank you so much I was so scared and frustrated about possible being without a phone... Thank you again

Xeodia said:
You are a genius It was my cable that I was using... I was sitting here reading your post and I'm thinking to my self "yeah like I haven't tried that already thanks for nothing." then I saw the part about my cable and said its worth a shot. thank you so much I was so scared and frustrated about possible being without a phone... Thank you again
Click to expand...
Click to collapse
Hey guys since my s6 SM-G920F is with tripped knox status 0x1 i can't use smartswitch for emergency recovery it stucks on 94% always with hours,what is the main reason of that i tried on other pc it is the same,my cable is ok because it charges s6 without any singl problem!sorry for interuppt in this thread like idiot but what is about smartswitch stucks always on 94%?!!!
anyone help me:crying:

vlatkonexus4 said:
Hey guys since my s6 SM-G920F is with tripped knox status 0x1 i can't use smartswitch for emergency recovery it stucks on 94% always with hours,what is the main reason of that i tried on other pc it is the same,my cable is ok because it charges s6 without any singl problem!sorry for interuppt in this thread like idiot but what is about smartswitch stucks always on 94%?!!!
anyone help me:crying:
Click to expand...
Click to collapse
just use odin to flash firmware.

vlatkonexus4 said:
Hey guys since my s6 SM-G920F is with tripped knox status 0x1 i can't use smartswitch for emergency recovery it stucks on 94% always with hours,what is the main reason of that i tried on other pc it is the same,my cable is ok because it charges s6 without any singl problem!sorry for interuppt in this thread like idiot but what is about smartswitch stucks always on 94%?!!!
anyone help me:crying:
Click to expand...
Click to collapse
Nonsense.... I used it when I trashed my EFS / Modem
Smart Switch does work, check your USB drivers and internet connection.
At the end of the process smart switch does verify a lot of thing, when your CPU from your computer is slow it will hang a long time on 94%

i can try via teamviewer to help you

SM-G920F - Bootloop during installing systemupdate

Hi, a friend of me has a Samsumg Galaxy S6 (SM-G920F), which runs continuously in a bootloop while installing a system update. It goes to 29% and then restarts himself to start installing the system update again and returns to exactly 29% again, followowd by a restart again, and again, and again ........ Attempts to start-up in recovery mode (Power, Volume +, Home) or download mode (Power, Volume -, Home) do not work. Also my PC does not recognize the phone. :crying::crying:
Does anyone have got an idea to got my phone working, or any other idea to get my phone in recovery- or download-mode?

Anyone?

The Phone boot ?

zworx said:
The Phone boot ?
Click to expand...
Click to collapse
No, unfortunately not. It keeps restarting when system update is at 29% and after the restart keeps comming back in "installing a system update" ......

Try the Pit files ans flash firware via odin

zworx said:
Try the Pit files ans flash firware via odin
Click to expand...
Click to collapse
For that I have to boot to download-mode, right? Problem is that the phone isn't booting to download-mode, recovery or sytem at all. At least not by the "normal" procedure. It constantly booting to "installing systemupdate" ......:crying:

When you connect To odin. The Phone is recognized?

You are not holding volume down+power+home long enough. Keep holding it until you get to the download mode prompt screen.

zworx said:
When you connect To odin. The Phone is recognized?
Click to expand...
Click to collapse
No, the phone is not recognized by ODIN. Drivers on PC are oke, because my S7 edge and my girlfriends S5 are recognized by ODIN ......

benjamen50 said:
You are not holding volume down+power+home long enough. Keep holding it until you get to the download mode prompt screen.
Click to expand...
Click to collapse
I'm holding these buttons for more then 60 seconds ....... but nothing seems to be working .....

Were the volume down, home and power button functioning fine before hand?
Looks like one of the buttons don't work.

benjamen50 said:
Were the volume down, home and power button functioning fine before hand?
Looks like one of the buttons don't work.
Click to expand...
Click to collapse
As far as I know, buttons worked fine before. I guess phone is brikked and not much I can do about it anymore ....... :crying::crying:

I'm guessing you already tried running it flat? There is still a chance download mode is bootable once you get the phone to go off due to flat battery.
This phone is a pretty bad brick, I've fixed up to DRK corrupted but this one seems unrecoverable.

benjamen50 said:
I'm guessing you already tried running it flat? There is still a chance download mode is bootable once you get the phone to go off due to flat battery.
This phone is a pretty bad brick, I've fixed up to DRK corrupted but this one seems unrecoverable.
Click to expand...
Click to collapse
Yes, I already let the phone running empty battery. But as soon as I plug in the powercord, the same process starts over and over again .......

And with adb ?

same trouble
Hi everybody, i had the same trouble on my G-920F (S6), and the only strange way i've find, is to keep button volume up AND down and power, once it's turn off for rebooting, i've add the home button pressed.
finally by that way it show me the recovery menu. Another time it show me the download menu !!??
Well but now my trouble is that i cannot succeed to flash correctly the last official samsung firmware using Odin .
i've tryed to erase nand (i know i should not), but without succeed.
so i'm looking for pit file, and i will try an older firmware.
so try with the volume up and down and power, in case of it works like for me

J4 core cannot go to download mode after combination?

Hello,
I have a problem, today I install the combination file to my SM-J410F Samsung device but it not work I get %80 and failed and write something (like custom binary fused ) but after that I want to download another Stock firmware but I noticed that it cannot into download mode and when I Press Vol up + power it only show the Samsung logo and turn off, I try many times but it's something.....
I also use jig USB to force the device to download mode but it doesn't work.
Please help me it's very important to me. I Appropriate your bits of help.

omar raza said:
Hello,
I have a problem, today I install the combination file to my SM-J410F Samsung device but it not work I get %80 and failed and write something (like custom binary fused ) but after that I want to download another Stock firmware but I noticed that it cannot into download mode and when I Press Vol up + power it only show the Samsung logo and turn off, I try many times but it's something.....
I also use jig USB to force the device to download mode but it doesn't work.
Please help me it's very important to me. I Appropriate your bits of help.
Click to expand...
Click to collapse
You are hardware bricked, your Samsung has a hardware component that, once tripped, will not let the device boot.
You tripped the "fuse" by attempting to flash TWRP or some other custom software not approved by your manufacturer or carrier.
Next time, do better research before attempting to modify your device.
Sent from my SM-S767VL using Tapatalk

Did you try Vol- and power button If it doesn't work the volume up and down and power button

muhammad42620 said:
Did you try Vol- and power button If it doesn't work the volume up and down and power button
Click to expand...
Click to collapse
Its volume down+home+power if the device has a home button.
Or volume down+power if the device does not have a home button.
Or a USB jig
If none of these work to get the device booted into download mode, the only options left are a JTAG/Riff/Octobox service or replace the motherboard.
Sent from my SM-S767VL using Tapatalk

Droidriven said:
Its volume down+home+power if the device has a home button.
Or volume down+power if the device does not have a home button.
Or a USB jig
If none of these work to get the device booted into download mode, the only options left are a JTAG/Riff/Octobox service or replace the motherboard.
Sent from my SM-S767VL using Tapatalk
Click to expand...
Click to collapse
Here is a guide for booting your phone in download mode
https://www.hardreset.info/devices/samsung/samsung-galaxy-j4-core/download-mode/

guys my problem is that my sm-j410f doesn't have home button but I tried many times with another VOL-, Vol +, power, I tested all possibility it doesn't work and also I use a JIG USB it's worked on two devices like galaxy s5, and galaxy s6 edge but when I use it form J4 Core if phone power off it cannot turn on even if I press power button , and if I power button when See Samsung logo and insert Jig USB it power off the device immediately,
this problem happens to me while I want to install Combination rom using Odin to my phone.
Guys, please help.

Samsung Galaxy A7 (2018) - No Download mode or Recovery and infinite bootloop

Hi,
Recently i was trying to apply another rom to my Samsung Galaxy A7 2018 edition and i am stuck in an infinite bootloop. I cannot enter download mode with the Volume Down and Power keys and the only thing it does is showing the logo of Samsung every 5 seconds and restarts. I have tried to built a usb jig with 300k resistors and still does not boot up in download mode to flash with odin a stock firmware. Also i left the battery to drain and now it is turned off,but when i plug in the usb cable and power it up it still goes into infinite loop. Any help?

I was trying the Android 10 Magisk root for A750F and was greeted by a similar situation after ODIN rebooted my phone after flashing Magisk image.. Anyways, don't panic, try all combination of buttons. vUP,vDN,PWR or vUP,PWR or vUP,vDWN while connected to usb.. It wasn't working for me too but i tried all combinations and it landed me to download mode where I flashed the stock rom

just press those button and connect to usb

im glad i read his, had just the same issue while flashing wrong twrp on A750FN .. yihey thx budies

how did you solve this issue.
---------- Post added at 06:54 AM ---------- Previous post was at 06:45 AM ----------
which button combination helped you. I having a similar issue. can not enter download mode.

Solution that helped me
Just Press the volume plus + volume minus + power button at once. Once the phone reboot black screen appears, Leave the power button and keep pressing the volume plus and volume minus button. It will redirect to the download mode. and reflash the room using Odin. Only use official sammobile rom file as other files may be corrupted. The issue may arise. The problem is in rom.
If any issue query me at : [email protected].

try this bro
Tantalord said:
Hi,
Recently i was trying to apply another rom to my Samsung Galaxy A7 2018 edition and i am stuck in an infinite bootloop. I cannot enter download mode with the Volume Down and Power keys and the only thing it does is showing the logo of Samsung every 5 seconds and restarts. I have tried to built a usb jig with 300k resistors and still does not boot up in download mode to flash with odin a stock firmware. Also i left the battery to drain and now it is turned off,but when i plug in the usb cable and power it up it still goes into infinite loop. Any help?
Click to expand...
Click to collapse
do one thing hold volume + and volume - buttons toggether and connect your phone to pc while holding v+ and v- buttons your phone redirect to download mode without any other logo/animation :good:

zebby12 said:
I was trying the Android 10 Magisk root for A750F and was greeted by a similar situation after ODIN rebooted my phone after flashing Magisk image.. Anyways, don't panic, try all combination of buttons. vUP,vDN,PWR or vUP,PWR or vUP,vDWN while connected to usb.. It wasn't working for me too but i tried all combinations and it landed me to download mode where I flashed the stock rom
Click to expand...
Click to collapse
icodix said:
just press those button and connect to usb
Click to expand...
Click to collapse
ikram.senguen said:
im glad i read his, had just the same issue while flashing wrong twrp on A750FN .. yihey thx budies
Click to expand...
Click to collapse
simonastani21 said:
Solution that helped me
Just Press the volume plus + volume minus + power button at once. Once the phone reboot black screen appears, Leave the power button and keep pressing the volume plus and volume minus button. It will redirect to the download mode. and reflash the room using Odin. Only use official sammobile rom file as other files may be corrupted. The issue may arise. The problem is in rom.
If any issue query me at : [email protected].
Click to expand...
Click to collapse
I have tried keeping all 3 buttons (vol up + vol down + power), tried holding vol up + vol down and then connecting to my PC (nothing happens, I always see the same screen (SAMSUNG Galaxy A7 Secured by Knox and Powered by android underneath)).
Tried vUP,vDN,PWR or vUP,PWR or vUP,vDWN while connected to PC via USB.
Tried vUP,vDN,PWR or vUP,PWR or vUP,vDWN while NOT connected to PC via USB.
Phone sometimes reboots but always gets into the screen I mentioned above.
Odin, obviously, doesn't see the phone either.
Also, adb devices command deosn't show the device in the list.
Anything else I should try?

Ah I solved it, and nobody mentions that you have to be SUPER quick!?
So you hold down vol down + power button and keep the USB cable at hand and the millisecond your phone reboots, reeeealy quickly release vol down and power and quickly afterwards press vol down + vol up and again quickly plug in your USB cable, if you did it before the Samsung logo appears you will get into Downloading... screen.

androidBanana said:
Ah I solved it, and nobody mentions that you have to be SUPER quick!?
So you hold down vol down + power button and keep the USB cable at hand and the millisecond your phone reboots, reeeealy quickly release vol down and power and quickly afterwards press vol down + vol up and again quickly plug in your USB cable, if you did it before the Samsung logo appears you will get into Downloading... screen.
Click to expand...
Click to collapse
haha nice. we have different procedures though.

simonastani21 said:
Solution that helped me
Just Press the volume plus + volume minus + power button at once. Once the phone reboot black screen appears, Leave the power button and keep pressing the volume plus and volume minus button. It will redirect to the download mode. and reflash the room using Odin. Only use official sammobile rom file as other files may be corrupted. The issue may arise. The problem is in rom.
If any issue query me at : [email protected].
Click to expand...
Click to collapse
doesn't work for me

Tantalord said:
Hi,
Recently i was trying to apply another rom to my Samsung Galaxy A7 2018 edition and i am stuck in an infinite bootloop. I cannot enter download mode with the Volume Down and Power keys and the only thing it does is showing the logo of Samsung every 5 seconds and restarts. I have tried to built a usb jig with 300k resistors and still does not boot up in download mode to flash with odin a stock firmware. Also i left the battery to drain and now it is turned off,but when i plug in the usb cable and power it up it still goes into infinite loop. Any help?
Click to expand...
Click to collapse
just plug it to ur pc while pressing vol up + down, works for me

sagar81307 said:
try this bro
do one thing hold volume + and volume - buttons toggether and connect your phone to pc while holding v+ and v- buttons your phone redirect to download mode without any other logo/animation :good:
Click to expand...
Click to collapse
Hello sir, I just want to thankyou alot this fixed my problem. I tried to install a android 13 gsi rom that I saw was compatible with my phone but the after I installed it had some bugs and I restarted my phone to go to download mode and flash a backup I had but the phone went into a bootloop with in to the recovery(i was using pbrp) and I couldnt get into download mode even to flash my stock rom. after I saw you post I tried it and it took me in to a screen that was saying you system has been corrupted and asked me if I wanted to go to download mode and said yes and flashed my rom and everything is working now
Thank you Again