Develop Bugs

[Q] So How does this actually work?

I picked up a pre-owned Gold G3 yesterday, my last one went pop!
This new G3, is Sim Unlocked, but with a Vodafone UK rom (V10a.235.15). After researching and reading around.. the G3 has EFS, so I followed the KDZ back to stock guide and flashed the Open EU rom, which went without any issues and seemed as if it had flashed and replaced the VF Rom, but it still has the VF splash screen, a VF updates Icon (Which can be removed) and software version, yet the G3 still detected and Loaded in my EE UK APN settings and no sign of any VF APN.
http://forum.xda-developers.com/showthread.php?t=2785089
So am I right in thinking.. If I wanted to make this a full UK unbranded phone, so no splash screen with a software V10a.EUR.XX.. I would have to Jailbreak the EFS partition and Replace VFRom stored on the EFS with the EUR-XX rom.
OR am I wrong entirely, so... How does this work
There are so many threads on here, that ask the same questions in different ways, hence why Im a litle confused as how this works
Thanks

Wait Wait Wait
So you cant manually import APN settings right? How about flashing a Rom from another European country?
Dont tamper with the EFS partition under any circumstances. If you do you wont have a IMEI and your phone will be worthless. Carrier branding does not occur within the EFS partition
I remember my carrier apps disappeared from Update Center when i upgraded my Australian firmware to a Taiwan Firmware so im pretty sure it might work for you.
When you flash the KDZ make sure you flash it using CSE Flash Mode

itsbighead said:
Wait Wait Wait
So you cant manually import APN settings right? How about flashing a Rom from another European country?
Dont tamper with the EFS partition under any circumstances. If you do you wont have a IMEI and your phone will be worthless. Carrier branding does not occur within the EFS partition
I remember my carrier apps disappeared from Update Center when i upgraded my Australian firmware to a Taiwan Firmware so im pretty sure it might work for you.
When you flash the KDZ make sure you flash it using CSE Flash Mode
Click to expand...
Click to collapse
Can I just be clear before I answer... The G3 I bought is Branded to Vodafone UK, I am personally on EE UK and Im trying to remove the Vodafone Branding and make it a factory unlocked unbranded G3.
Thanks for the reply friend. I didnt have to enter any EE APN settings, they were already there, so not sure how that was... because I didnt enter them. Glad to hear its not the EFS, because I would rather use a branded phone and have it working than change its file system and mess it up. Also, I know the guide doesnt state it but I turned ON USB Debugging, would that make a difference
I followed the guide closely so did flash using CSE. Ill now flash another countries KDZ and let you know how i get on?
Could it be that Vodafone UK is the EU Open Rom, just a few minor changes..... What I dont understand is...
The EUR Open Rom flashes perfectly fine, reboots and starts... so why after a perfect flash using CSE, is the Vodafone UK rom still there. Any Ideas.

itsbighead said:
How about flashing a Rom from another European country?
Click to expand...
Click to collapse
Im afraid no Luck... I flashed Open France, still booted to VF rom with VF software on it v.10a-235-15), then installed "Italy Orange", which actually worked, booted up a clean LG rom BUT, even though its v.10a, When trying OTA update, it said I was n the latest OS, which is no good, then using LG PC Sync.. it just updated to the UK VF rom again (20h).
So I took a long shot and flashed Open UK, still the same.... boots into VF splash screen and software.. so, Im at a loss. This is why I reckon carriers hide a rom on the EFS partition.
Any thing to add
Thanks

Convert a H815T to UK (euro version)

Can you convert a H815T (Hong Kong) version to a UK (Euro) version using the correct files when rooting? So if I use the International H815 10c Version files will this change it to Euro verions?

What do you mean by Euro version? What do you want to change? I don't think you can do what you want by flashing a different system image.

I think he's looking for root? Same as myself.
Sent from my LG-H815 using Tapatalk

gadget069 said:
I think he's looking for root? Same as myself.
Sent from my LG-H815 using Tapatalk
Click to expand...
Click to collapse
I'm not so sure.
But if you have the H815 you can root using the international files posted in the root thread.

Too many versions if the 815. I don't believe the 815t is rootable yet.
Sent from my LG-H815 using Tapatalk

gadget069 said:
Too many versions if the 815. I don't believe the 815t is rootable yet.
Sent from my LG-H815 using Tapatalk
Click to expand...
Click to collapse
Yes it is.

Yeah I was asking if the H815T you could you use the H815 files and you can.
I could get the H815T cheap but found a selling the H815 for the same price so I don't need this anymore. Only if LG could stop making a million different variants and confusing people
But thanks for all your help guys.

I bought the H815T because of band 40 support, which Optus uses.
I used the international H815 10c image to root mine.

Optus are shipping the H815T, Telstra are shipping H815K (which is missing quite a few bands compared to the T). I have one of the Optus H815Ts. Im not prepared to flash a slightly mis-matching system.img and would much prefer to make my own. Ive not let the firmware update yet, and the download mode shell works. But the recovery block device isnt present preventing TWRP from being flashed in.
I dont think 'converting' a H815T to a euro would help with the unlock at all, because I think the key is not a flag but a hash (unconfirmed, the hex key gen thing could be a bluff) and the hash is generated after LG lookup your device ID. Even if you changed to the euro firmware, I think LG would still consider your device a 'T'.

I have been looking for a root method for the T version but it dosent appear possible yet.
Sent from my LG-H815 using Tapatalk

antus said:
Optus are shipping the H815T, Telstra are shipping H815K (which is missing quite a few bands compared to the T). I have one of the Optus H815Ts. Im not prepared to flash a slightly mis-matching system.img and would much prefer to make my own. Ive not let the firmware update yet, and the download mode shell works. But the recovery block device isnt present preventing TWRP from being flashed in.
I dont think 'converting' a H815T to a euro would help with the unlock at all, because I think the key is not a flag but a hash (unconfirmed, the hex key gen thing could be a bluff) and the hash is generated after LG lookup your device ID. Even if you changed to the euro firmware, I think LG would still consider your device a 'T'.
Click to expand...
Click to collapse
This is correct. Were going to be waiting a while for a bootloader unlock. Telstra/ Optus certianly wont release one so were relying on someone to claim the bounty and figure out an exploit.
Just FYI if your looking for ROOT you can use the Low Effort Root and flash a euro version, but you wont be able to unlock the bootloader.
Also if you just want Marshmallow on your Telstra or Optus phone you dont need to unlock the bootloader, you can simply run LGUP and flash the 20b files to it. (you cant have Marshmallow and root as far as I'm aware)
Anyone in this thread have h815k original system.img file? or a rooted system.img file? Reason is I flashed the 10c version for root but now I want to run LGUP so I need to reflash to stock and I didnt backup (silly me).
Let me know thanks guys

TiMilk said:
This is correct. Were going to be waiting a while for a bootloader unlock. Telstra/ Optus certianly wont release one so were relying on someone to claim the bounty and figure out an exploit.
Just FYI if your looking for ROOT you can use the Low Effort Root and flash a euro version, but you wont be able to unlock the bootloader.
Also if you just want Marshmallow on your Telstra or Optus phone you dont need to unlock the bootloader, you can simply run LGUP and flash the 20b files to it. (you cant have Marshmallow and root as far as I'm aware)
Anyone in this thread have h815k original system.img file? or a rooted system.img file? Reason is I flashed the 10c version for root but now I want to run LGUP so I need to reflash to stock and I didnt backup (silly me).
Let me know thanks guys
Click to expand...
Click to collapse
So is it dangerous to go from 815K to 815T as radio bands are different? i changed from Telstra to Optus so wondering if I can do this...

[GUIDE] Flashing XQ-AT51 Firmware on XQ-AT52 Device

Disclaimer: I am not responsible for any bricks/ issues you may encounter following this guide. Although, I will do my best to try to help you if something were to go wrong.
MAKE SURE OEM UNLOCK IS ENABLED UNDER DEV SETTINGS BEFORE YOU DO ANYTHING BELOW
Update 2: 3/11/2021 : I see maybe deleting the .ta files may help avoid soft bricking, feel free to try it I have not personally tested yet to see if it works.
Update#3 3/13/2021 : If you are following this guide recently make sure you update to Android 11 first! Do not do any updates after the first one to Android 11! Then the flashing should work just fine. Tested and verified this on Taiwan XQ-AT52 to 51 firmware
Hello, I've managed to successfully flash AT51 firmware on my AT52 without issue using Newflasher.
Step 1 download = the US firmware/ whatever region is needed for you and new flasher/ the sony xperia drivers needed to flash the firmware to your device. Extract it to your desktop. Install the Xperia driver from newflasher if you need to/ haven't yet. Newflasher needs to be extracted into the same folder where the firmware files are that you downloaded from Xperifirm. This step is crucial!
Step 2 : Power off your Xperia and put it in flash mode by pressing down on the volume and connecting it to your PC via usb. (Do not use the USB C cable that came with the phone use a different one if you have one) You'll know it is in flashmode if the notification LED turned green and the screen remains off.
Step 3 : Open newflasher.exe
Step 4: type n then press enter
Step 5: type n again and press enter
Step 6 : This is when you should get to the flashing stage. Press Y and enter to everything you are prompted to. type y for yes to. This for me resulted in a successful conversion over to AT51.
Step 7: Once everything is done and it says you are safe to disconnect your phone please do so and then press and hold your power button until the phone boots up.
At this point you should have a fully working AT51 firmware!
Bare with me as I"m working on getting developer access for androidfilehost and will upload the files asap. In the meantime you can download newflasher and the firmware files yourself using Xperifirm if you don't wanna wait for me to upload.
Xperifirm: https://forum.xda-developers.com/cr...xperifirm-xperia-firmware-downloader-t2834142
Newflasher: https://forum.xda-developers.com/cr...gress-newflasher-xperia-command-line-t3619426

Can you please help? I followed and i got a corrupted message and power off in 5 second.
I tried xperia companion, failed.
I tried to reflash newflasher with original firmware again, failed.
Please help.

tiunilohmu said:
Can you please help? I followed and i got a corrupted message and power off in 5 second.
I tried xperia companion, failed.
I tried to reflash newflasher with original firmware again, failed.
Please help.
Click to expand...
Click to collapse
Can you tell me the model of your xperia phone? If you can still get it into flash mode when the notification LED turns green you may still be able to recover it.

Hi, I finally managed to restore it. I have to remove all the ta files to flash it, then it booted up.
Thanks for your respond.

my device is corrupted please help

blegs said:
my device is corrupted please help
Click to expand...
Click to collapse
what did you do to corrupt it?

Lennyuk said:
what did you do to corrupt it?
Click to expand...
Click to collapse
I have using newflasher
After using 3 time xperia companion it work normal again

Hi, I didn't find this thread until after I made an attempt at flashing the device. I followed the instructions from the link below and ended up with the device saying it's corrupted.
https://www.xperiablog.net/2018/01/...-firmware-for-xperia-xz-premium-xz1-and-more/
I tried redownloading newflasher as well as redownloading the firmware I wanted as well as a new cable and that did not help. I reflashed it with this procedure listed above and it did not help.
Xperia companion won't let me do anything because it says the device is locked even though the device was not locked and there doesn't appear to be a way to unlock it. edited to add that I did get xperia companion to repair it successfully
edit again to advise I succeeded only after doing n and enter a third time then hitting y and enter for the final flashing step and that was successful in getting it updated correctly

Would it work to unlock my phone
Thanks for the guide!
Can I ask few questions please?
First is do I need to have my bootloader unlocked? I enabled OEM unlock setting in developer settings but that is only one thing I did.
And the second one is could this flash unlock my phone?
I am in this situation where my AT51 won't work with other sims except for Vodafone. UK.
I stayed with them for 30 days, (required time frame to get your phone unlocked) requested unlock code and it has been more than 10 working days but still have not received the code.
So today I did some searching online and found the service code to check if my phone is locked to a network and to my surprise it says it's not. So I am guessing that they have limited my phone to using only their sim through some other means andnot buy locking my modem. But this is ofc just a guess.
I kept chatting with the customer support and he keeps saying wait for the code which I do not believe is going to come, they have to unlock it on their end. But I am not sure about that. I don't think they are sure either..
Basically I'll wait fem more days maybe they will unlock it but if they won't when I am thinking maybe my modem is not locked and I could unlock it by flashing different ROM?
Or do you think this won't work?
Sorry for a rambling post. Looking forward to your reply. Thanks!

Mazvydelis said:
Thanks for the guide!
Can I ask few questions please?
First is do I need to have my bootloader unlocked? I enabled OEM unlock setting in developer settings but that is only one thing I did.
And the second one is could this flash unlock my phone?
I am in this situation where my AT51 won't work with other sims except for Vodafone. UK.
I stayed with them for 30 days, (required time frame to get your phone unlocked) requested unlock code and it has been more than 10 working days but still have not received the code.
So today I did some searching online and found the service code to check if my phone is locked to a network and to my surprise it says it's not. So I am guessing that they have limited my phone to using only their sim through some other means andnot buy locking my modem. But this is ofc just a guess.
I kept chatting with the customer support and he keeps saying wait for the code which I do not believe is going to come, they have to unlock it on their end. But I am not sure about that. I don't think they are sure either..
Basically I'll wait fem more days maybe they will unlock it but if they won't when I am thinking maybe my modem is not locked and I could unlock it by flashing different ROM?
Or do you think this won't work?
Sorry for a rambling post. Looking forward to your reply. Thanks!
Click to expand...
Click to collapse
You do not need the bootloader unlocked as you are flashing official firmware.

Anyone know if you can flash a XQ-AT52 to a XQ-AT51 and then back to the XQ-AT52 firmware?
Sent from my XQ-AT52 using Tapatalk

I know this thread is a few months old at this point but I'm really struggling to flash to XQ-AT51. I've successfully flashed from XQ-AT52 Hong Kong (my original firmware) to the Taiwan version which is slightly better because of the messaging compatibility but I really want to get the US version. I have tried at least 20 times over the course of a full day and I have not been able to flash the US firmware without getting an error saying "Your device is corrupt It can't be trusted and will not boot" every time. I have repaired it back to the Hong Kong firmware (back when that was the one I had) and to the Taiwan version once I had that installed. But I have never gotten the US firmware to take without the "Device is corrupt" error.
My phone is the Sony xperia 1 mark 2 running the then default XQ-AT52 Hong Kong, and now running the default XQ-AT52 Taiwan. I've been trying to flash to XQ-AT51 US. I've been using newflasher v39 and the US firmware downloaded for xperifirm v 5.5.0.

So I was able to flash from the hong kong version to the Taiwan version and back with no issues at all. But I'm still unable to flash to the US version without the "Your device is corrupt It can't be trusted and will not boot" error that seems to happen every single time I try to install the US firmware.

Can someone make me a favor and can upload the latest ftf of Android 10 for the Xperia 1ii Single SIM?

ProjectBlitz said:
So I was able to flash from the hong kong version to the Taiwan version and back with no issues at all. But I'm still unable to flash to the US version without the "Your device is corrupt It can't be trusted and will not boot" error that seems to happen every single time I try to install the US firmware.
Click to expand...
Click to collapse
The 1 II has downgrade protection, so as long as the firmware version of the US version isn't the same or newer than the highest version you've ever used you're gonna get the corruption error.
What you could try is flashing the newer EU version and then flashing only the older US customisation image. That's what I did for a while since US firmware was older than EU firmware, and it worked. Not sure if it'll work with Android 11.

ProjectBlitz said:
I know this thread is a few months old at this point but I'm really struggling to flash to XQ-AT51. I've successfully flashed from XQ-AT52 Hong Kong (my original firmware) to the Taiwan version which is slightly better because of the messaging compatibility but I really want to get the US version. I have tried at least 20 times over the course of a full day and I have not been able to flash the US firmware without getting an error saying "Your device is corrupt It can't be trusted and will not boot" every time. I have repaired it back to the Hong Kong firmware (back when that was the one I had) and to the Taiwan version once I had that installed. But I have never gotten the US firmware to take without the "Device is corrupt" error.
My phone is the Sony xperia 1 mark 2 running the then default XQ-AT52 Hong Kong, and now running the default XQ-AT52 Taiwan. I've been trying to flash to XQ-AT51 US. I've been using newflasher v39 and the US firmware downloaded for xperifirm v 5.5.0.
Click to expand...
Click to collapse
im in the us and was looking to the 256gb version (i think its taiwan). is the hong kong or taiwan version missing anything? or is the only reason to flash to US to get better coverage with us carriers?

GreeleyXda said:
im in the us and was looking to the 256gb version (i think its taiwan). is the hong kong or taiwan version missing anything? or is the only reason to flash to US to get better coverage with us carriers?
Click to expand...
Click to collapse
It's for better coverage and for VoLTE and Wi-Fi calling support. Also if you get a HK one with Android 11 you will be unable to flash the US firmware, because it is still on Android 10; and the phone has anti-rollback protection.

it arrived on 10 still, but its bugging me to update.

THISISINSANE said:
It's for better coverage and for VoLTE and Wi-Fi calling support. Also if you get a HK one with Android 11 you will be unable to flash the US firmware, because it is still on Android 10; and the phone has anti-rollback protection.
Click to expand...
Click to collapse
This isn't the case now since the US models have Android 11 too now

Can anyone confirm that this process has to be done using USB 2.x? I've read in a separate post that newflasher isn't compatible with USB 3.x, which is currently what all my computer use. Also, should I be using the newest version newflasher?
EDIT: Tried on USB 2.0 and it worked perfectly.

Any Guide to Unlock Bootloader or Change the Official ROM to a different one?

Hi there, so about few months ago like back in August, I got myself an LG Wing after LG announced that they were going to close the mobile division. I live in Malaysia and I asked help from a friend in India to help me get one and send it over.
After getting it in my hands, and after I inserted the SIM, it says Network locked. I bought the phone unlocked but it turns out, the phone needs to be used with a SIM from the same country, perform a 30 minutes call and then it would become unlocked.
Given that I stay in Malaysia, its impossible for me to travel all the way to India to unlock a phone. That said, is there any way I could perform either one of the following?
- Get the Unlock Pin to be able to use with other network?
- Change the India Official ROM with a different country ROM perhaps?
Thanks!

See this thread
LGUp 1.16.3 Patched Found and Works with LG Wing
Honestly found it on XDA of all places after looking for it all night What does 1.16 give us that 1.14 doesn't? Everything honestly. Could not get my Wing recognized to flash with 1.14. No 1.15 Patched exists either We can downgrade with...
forum.xda-developers.com

classicprithivi said:
Hi there, so about few months ago like back in August, I got myself an LG Wing after LG announced that they were going to close the mobile division. I live in Malaysia and I asked help from a friend in India to help me get one and send it over.
After getting it in my hands, and after I inserted the SIM, it says Network locked. I bought the phone unlocked but it turns out, the phone needs to be used with a SIM from the same country, perform a 30 minutes call and then it would become unlocked.
Given that I stay in Malaysia, its impossible for me to travel all the way to India to unlock a phone. That said, is there any way I could perform either one of the following?
- Get the Unlock Pin to be able to use with other network?
- Change the India Official ROM with a different country ROM perhaps?
Thanks!
Click to expand...
Click to collapse
Currently no method (yet) to unlock bootloader and install ROMs or GSI images, unless you get lucky like one member did here and get a demo model that's already bootloader unlocked from factory

KaptinBoxxi said:
Currently no method (yet) to unlock bootloader and install ROMs or GSI images, unless you get lucky like one member did here and get a demo model that's already bootloader unlocked from factory
Click to expand...
Click to collapse
What are the steps to root a demo model? I am thinking to buy a demo model. It seems cheap.

diejuse said:
What are the steps to root a demo model? I am thinking to buy a demo model. It seems cheap.
Click to expand...
Click to collapse
You don't, unless you hopefully get lucky and its factory bootloader unlocked. There's no way (yet) to unlock the bootloader to root every lg wing, demo or not
Don't buy a demo model unless its just a phone to play with. Not a good every day use phone

KaptinBoxxi said:
You don't, unless you hopefully get lucky and its factory bootloader unlocked. There's no way (yet) to unlock the bootloader to root every lg wing, demo or not
Don't buy a demo model unless its just a phone to play with. Not a good every day use phone
Click to expand...
Click to collapse
It's a pity.

How should I move to an unbranded global ROM?

I'm trying to root and update my friends T-Mobile 7T (HD1907) to the most recent generic ROM. She's leaving the country and has no need or desire to keep the T-Mobile branding, and getting on a generic ROM seems like it will allow for faster updates.
I've seen some threads that look like they might help, but having had issues in the past with other attempts on other phones, I know that one little oversight can cause HOURS of frustration.
So I figured I'd ask first and try to save the drama this time.
Where can I get the correct ROM to do what I want on this phone?
I have TWRP installed and have rooted with Magisk.
Current build # is 10.0.3 HD63CB
Carrier configuration version is 2.370001
I appreciate any help on this, thanks!

JustinChase said:
I'm trying to root and update my friends T-Mobile 7T (HD1907) to the most recent generic ROM. She's leaving the country and has no need or desire to keep the T-Mobile branding, and getting on a generic ROM seems like it will allow for faster updates.
I've seen some threads that look like they might help, but having had issues in the past with other attempts on other phones, I know that one little oversight can cause HOURS of frustration.
So I figured I'd ask first and try to save the drama this time.
Where can I get the correct ROM to do what I want on this phone?
I have TWRP installed and have rooted with Magisk.
Current build # is 10.0.3 HD63CB
Carrier configuration version is 2.370001
I appreciate any help on this, thanks!
Click to expand...
Click to collapse
[CLOSED] T-Mobile 7T Conversion to International WITHOUT unlocked bootloader/SIM unlock!
Here is a patched MSM download tool for TMobile OP7T. It will bypass the need to sim unlock before unlocking the bootloader, and will also bypass the need of an unlock token file from OnePlus (hence skip the wait period of 1 week to get the...
forum.xda-developers.com

The key is to force reboot into bootloader mode when u get stuck on pink T-Mobile bootscreen after first "flash-all" script so u can repeat this "flash-all" second try which will then work.

Thanks for that. I managed to unlock the bootloader and update to Oxygen OS 11.0.7.1.HD65AA, which I believe is the most recent global ROM.
The model of the phone still shows HD1907, which I thought should change from the T-Mobile model to the global model in this process, but perhaps this is normal.
Everything seems to be working fine, but I'm a bit concerned it won't update properly if its not entirely "converted" to the global model.

I did the same. All working fine though. It brought me unlocked bootloader to flash the dual sim firmware or global. All works. Only concern I have is ..The unlock bootloader ticker in dev options shows greyed out "Already Unlocked" but, the ticker is in the off position to the left which is odd. My friends was done by token but mine using patched boot msm. Any reason to be concerned ? Perhaps that's going to hinder the re lock and possible re unlock ?