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(Q) is there a way to stop firmware update while in download mode lg g2.

As soon as device enters download mode, firmware tries to update and locks up phone. I am trying to root this LG G2. No carrier. Formerly Sprint phone. Want to use phone on another carrier

http://forum.xda-developers.com/showthread.php?t=2655133
That sould cover unlocking the phone for use on other carriers. If you have a problem with that process, please post there as you are more likely to find help in that thread.

No Help but thanks
kdb424 said:
http://forum.xda-developers.com/showthread.php?t=2655133
That sould cover unlocking the phone for use on other carriers. If you have a problem with that process, please post there as you are more likely to find help in that thread.
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I have already been to that thread. No help with firmware lock up on download issue. As stated in the help request I can not root the phone due to it needing to be in download mode. and as soon as it goes into download mode it starts a firmware update and locks up the device.

Can you revert completely to stock?

Samsung On5 G550T1 MetroPCS REV0.4 stock OS anyone?

Hi All,
The short of a long story is that I just changed carriers and found out way late that I couldn't bring my Sprint phone to MetroPCS. So now I'm using the budget PCS On5 that came with the deal when we signed up.
I successfully loaded TRWP and then rooted however, I didn't know about FRP until it smacked me in the face. The root went fine but later SU prompted me to update the binary and when it did, it tripped factory reset protection and soft bricked my phone.
I want to reinstall stock OS on this phone but it appears that I have a software version that I haven't been able to find on the web yet. I found the stock rom for the MetroPCS On5 easily enough but it's Revision 0.0 and the box I have for the phone says REV0.4.
When I try to Odin Flash the REV0.0 version, I get SW REV CHECK FAIL DEVICE 2, BINARY 1 fail. So I guess I had the latest software on my phone and the phone thinks I'm trying to roll back using the 0.0 revsion.
My question is this, does anyone here have the stock rom for G550T1 REV0.4? Help!
If nobody does, maybe I can still fix this phone. I have a TRWP backup from the sister phone (same model same revision 0.4) that I'm using right now but I can't get back into TRWP on the soft bricked phone to recover that way to use the backup file.
Next I thought I might take the backup files and turn it into a rom and just flash that. However, with the tutorials I followed I kept running into problems. When I went to unpack the files per the tutorial, my rar software said that the file was corrupt. Maybe it is. but maybe not. It was my first time attempting to make a rom. If I can't find the software I need, could any of you Android geniuses help me get this backup into a flashable format?
I have to admit I'm daunted by the FRS in 5.0 and above. Is it defeatable? How do you root newer Android versions?
Thanks!

I did the same thing to my phone. did you get yours fixed?> if so could you provide me with the rom?

I haven't found the fix yet. Hopefully somebody will come through with a helping hand!

I finally got it figured out! So here is what i did and hopefully it will work for you.
1. I Odin flashed a good BL from the ROM REV0.0 floating around on the net. So at least I could now get into download mode.
2. Then I used Kies3 > Tools > Firmware Upgrade and Initialisation. It will ask you for your model number and then when you click ok it will ask you for a SN.
3. The trick is that Samsung doesn't put the SN that you need on the phone or the box. (personally, I couldn't find it on the phone either once I got it up and running) so go here: https://forum.xda-developers.com/android/general/root-samsung-galaxy-on5-t3435457/page46 and get a SN from post #454 and use that. (don't forget to say thanks)
4. Click Ok. Let it work, and max and relax.
Mine took about 10 minutes. Hopefully this will work for you too! Thanks XDA!

Help!
What is BL from the ROM REV0.0? I need your help, I have the MetroPCS On5 and I installed Reborn ON5 I want to go back to the MetroPCS ROM because the camera and the audio do not work and I tried to install the original ROM through Odin but it does not work I get an error. What I can do? I would like to use this method but I do not have very clear files needed.
You could help me bro, I'll thank you

H81022c TOT, or KDZ, or ZiP files

​My phone locks up after dialing out. I am wanting to flash my phone to a version that works. My phone is stock and unrooted. Help?

what is your current software version? MM or Lolipop?

6.0

ETM1962 said:
​My phone locks up after dialing out. I am wanting to flash my phone to a version that works. My phone is stock and unrooted. Help?
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did you perform a factory reset??
And sadly no there is no later tot of kdz, and most likely never will be. The only one available in the one in the back to stock guide, which You wouldnt be able to flash due to antirollback.

LM-G900 AT&T Removal

I've been trying to flash my G900 (AT&T version), So far I've tried LGUP, LGUP Dev and The official LG flashing tool, My main goal here is to at least remove AT&T from the device as it's throwing me errors when I try to update from Android 10 to Android 11. Any suggestions? I've searched around and there doesn't seem to be much about thus specific device.

Divine_42O said:
I've been trying to flash my G900 (AT&T version), So far I've tried LGUP, LGUP Dev and The official LG flashing tool, My main goal here is to at least remove AT&T from the device as it's throwing me errors when I try to update from Android 10 to Android 11. Any suggestions? I've searched around and there doesn't seem to be much about thus specific device.
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What are you trying to flash exactly, and how are you trying to flash it?

iBowToAndroid said:
What are you trying to flash exactly, and how are you trying to flash it?
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Well basically I'm trying to crossflash the device with a clean firmware/OS
I have confirmed numerous times it should work fine, as the devices are identical; only distinction is firmware.
I have used all the LG flashing tools I can find, They all see, connect and flash, only to fail with an error, that's either blank or changes every time.

Divine_42O said:
Well basically I'm trying to crossflash the device with a clean firmware/OS
I have confirmed numerous times it should work fine, as the devices are identical; only distinction is firmware.
I have used all the LG flashing tools I can find, They all see, connect and flash, only to fail with an error, that's either blank or changes every time.
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Click to collapse
So which firmware are you trying to flash, exactly?

I have tried anyway with LGUP. A bug for protection does not allow anything. I want to upgrade to 11. Nothing at all. The dll I extract it from the Firmware and neither. Firmware from Lg-firmwares.com for this AT&T Velvet 5G.

dude you'll never install anything LG directly gives you since you can't unlock the bootloader

swaguduzo said:
dude you'll never install anything LG directly gives you since you can't unlock the bootloader
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Uhhhh, the bootloader doesn't need to be unlocked in order to flash stock firmware. That applies to almost every model from every manufacturer

swaguduzo said:
dude you'll never install anything LG directly gives you since you can't unlock the bootloader
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I understand what they say about bootloader unlocking. It is true the majority, the vast majority do not need it. But this AT&T device has made my life impossible to do so. I also can't find a way to unlock bootloader.

Please, someone who can give me a good tip, of what I have to do. On the other hand, can someone explain to me how to extract the KDZ from my own phone. I'm not talking about downloading a KDZ but about making a backup of the device itself. As you know, the bootloader is not unlocked and I would need a tool that allows it without having to root it.

Question T-mobile oneplus 9 (LE2117) has an unlocked bootloader now?

Hello all, after lurking here for a while, I found something that's making me post.
I have a carrier locked OP9. I just received the update to Android 12, and it has broken critical features. (Particularly not being able to stop apps from being closed accidentally!)
I have looked at Lineage OS in the past, and the process to get the LE2117's bootloader unlocked was... complicated.
However, while trying to fix other problems, rooting around in the developer options, I noticed that "unlock bootloader" was actually toggleable!
I think I have an unlocked bootloader now, but it's on android 12, and all the guides for rooting and installing a custom MOD for this phone say you must revert to android 11 before anything else.
So what now? Am I waiting for lineageOS 19 to come out, because that's the one based on android 12? I'm new to custom roms, and don't get the coding side of how all this works. (But I'm pretty determined to figure this out.)
Thanks for any help or advice you've got!

each stock update has a new firmware right now atleast all the roms are based on a11 latest firmware im not sure since oneplus got a12 if roms will switch to the newer firmware here is to hoping!

Gotcha, thanks. So waiting for lineage 19 it is, it sounds like, since that one is based off android 12.

dark_sable said:
Gotcha, thanks. So waiting for lineage 19 it is, it sounds like, since that one is based off android 12.
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I am pretty sure there is root for 12. All you need to do is dump the payload from the 12 update OnePlus let's loose, and patch it with magisk and flash it via fastboot. Via bootloader it is easy I am using a TMobile OnePlus 9. All you need to do is revert back to 11 via a msm tool. There is a post here for that. After downgrading to unlock your bootloader is easy only takes time. There is a post for it I don't remember all the details but all you have to do is get you imei code and email OnePlus. Soon they will sent you a code to fastboot flash to unlock the bootloader. After that most of these 12 work for us on our model phone. I am using evolution x. It tells me every day I can go to 12 .

funkybear34 said:
each stock update has a new firmware right now atleast all the roms are based on a11 latest firmware im not sure since oneplus got a12 if roms will switch to the newer firmware here is to hoping!
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Yes yes they do.

I've run into this same issue with wanting to use a Custom ROM. I have the T-Mobile version on A12 and it's now rooted. Another user shared the patched image file with me. I flashed it with fastboot boot boot.img then direct installed through Magisk to gain root. But all the custom roms here require A11 downgrade through the MSM tool and you have to use an MSM tool for T-Mobile, which was shared with me and explained but I'm not willing to downgrade. Until a custom ROM releases that I can flash on top of A12 I won't use it. I've had bad experiences with MSM tool to recover from brick and didn't succeed and had to send back to OnePlus for repair.

JimmyL216 said:
I've run into this same issue with wanting to use a Custom ROM. I have the T-Mobile version on A12 and it's now rooted. Another user shared the patched image file with me. I flashed it with fastboot boot boot.img then direct installed through Magisk to gain root. But all the custom roms here require A11 downgrade through the MSM tool and you have to use an MSM tool for T-Mobile, which was shared with me and explained but I'm not willing to downgrade. Until a custom ROM releases that I can flash on top of A12 I won't use it. I've had bad experiences with MSM tool to recover from brick and didn't succeed and had to send back to OnePlus for repair.
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It amazes me how many people have problems with the MSM Tool. I was afraid I was going to have problems after reading all the issues people have had and had zero and I've used it twice. Both times I just put the phone in EDL and connected it to the USB-C port on my tower. Windows 11 surprisingly didn't even give me any issues.

EtherealRemnant said:
It amazes me how many people have problems with the MSM Tool. I was afraid I was going to have problems after reading all the issues people have had and had zero and I've used it twice. Both times I just put the phone in EDL and connected it to the USB-C port on my tower. Windows 11 surprisingly didn't even give me any issues.
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I can't get my phone to go into EDL mode. Ever. Took every suggestion I've read. It just never went into EDL mode

JimmyL216 said:
I can't get my phone to go into EDL mode. Ever. Took every suggestion I've read. It just never went into EDL mode
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What worked for me was shutting the phone off, removing my case, holding both volume up and down, then plugging the phone in. The screen won't show anything, you have to look at the MSM Tool and see that it's connected to know you did it right. Both times I tried it worked perfectly.
You can also use adb reboot edl if you can get the thing to boot and have USB debugging turned on.