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Multiple threads little to no replies besides sensless info that ive already tried
CAN TOT METHOD WORK ON TMOBILES VARIANT G4 AND IF SO WHERES THE LINK FOR THE TOT FILE NOT KDZ!
Tmobile g4 forum is helpless after days and 100s views
this is my last hope. I Have a tmobile lg g4 model. I hapened to relock the bootloader while i was still on a rom and rooted with twrp, but i do have download mode and only download mode .I dont have a bootable o.s
Ive tried and tried and tried to get lg UP Tool which is a joke its not really a true unbrick tool cause if you bricked yourself on a rom and not the stock firmware its useless .All you get is device model unknown. This is supposedly cause custom roms are edited. Lg bridge does not work as a brick tool either it just states wether your firmware is up to date . The only hope was lg flash tool 2014 but that im told and seems to be outdated not compatible with any g4 on android 6.0.... Im at a loss here i can get into dload mode thats it the phone charges in download mode also and it also is recognized by pc meaning drivers are installed because lg mobile support tool sees my device and says its up to date.
s
Some members have been in my same scenario relocked bootloader with a rom and twrp with nothing but download mode and swear they fixed it with lg bridge tool using the update recovery error link within the tool.
Can anyone confirm if im screwed or if i am doing something wrong this is day 5 now im ready to toss the g4 in the trash for the sake of my sanity.
Closed at OP's request
long time lurker here.I bought a g4 second hand.it was advertised as h815 unlocked.the imei checked out online and all stickers said 815 as well.but in hardware info it showed h815T(HK variant).thankfully i knew how to flash firmwares so i downloaded a KDZ and flashed it with lg ft 2014.for some reason (i dont remember why) i flashed 2-3 times with other kdzs and ended up in the current state.the phone now shows H818(dual sim variant) in hardware info and doesnt
detect my sim card(same sim works fine in my G2).I never downloaded the h818 kdz.
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phone shows wrong model in settings and doesnt detect sim card.flashing stock kdz doesnt fix this
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any help would be appreciated as i have been flashing various KDZs since the last 2 months but have had no luck yet.
ps.
i am able to root using system.img injection method if root is required
nizamelahi said:
long time lurker here.I bought a g4 second hand.it was advertised as h815 unlocked.the imei checked out online and all stickers said 815 as well.but in hardware info it showed h815T(HK variant).thankfully i knew how to flash firmwares so i downloaded a KDZ and flashed it with lg ft 2014.for some reason (i dont remember why) i flashed 2-3 times with other kdzs and ended up in the current state.the phone now shows H818(dual sim variant) in hardware info and doesnt
detect my sim card(same sim works fine in my G2).I never downloaded the h818 kdz.
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||((TLDR))||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
phone shows wrong model in settings and doesnt detect sim card.flashing stock kdz doesnt fix this
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any help would be appreciated as i have been flashing various KDZs since the last 2 months but have had no luck yet.
ps.
i am able to root using system.img injection method if root is required
Click to expand...
Click to collapse
i think is was misinterpreted. its a h815 but a h815t indeed and unlocked mean carrier as you know theres no way to unlock bootloader.. you need to flash the h815T KDZ. i hope that you didnt mess your imei.
inject only works in LP not on MM. also youll need to find out if you can downgrade to lollipop. as this phone have antirollback wich means once you are on a version you cannot go nack or youll hard brick phone.
raptorddd said:
i think is was misinterpreted. its a h815 but a h815t indeed and unlocked mean carrier as you know theres no way to unlock bootloader.. you need to flash the h815T KDZ. i hope that you didnt mess your imei.
inject only works in LP not on MM. also youll need to find out if you can downgrade to lollipop. as this phone have antirollback wich means once you are on a version you cannot go nack or youll hard brick phone.
Click to expand...
Click to collapse
thank you for the response.im on lollipop right now since ft 2014 doesnt flash MM and lgup and ft 2.0.1.6 stop flashing after checking phone info(they stop flashing as phone shows h818 but kdz is for h815).I flashed h815T kdz multiple times(twice just today)but phone still shows h818 in lgup and in settings.the phone cant be h818 as it only has 1 sim slot.
imei is ok right now.SIM issue happened to be a ****ty sim cut job by the customer service guy.only remaining issue is the wrong version showing up in phone settings. cant flash MM due to that.
also,is there anything good about upgrading to MM???
nizamelahi said:
thank you for the response.im on lollipop right now since ft 2014 doesnt flash MM and lgup and ft 2.0.1.6 stop flashing after checking phone info(they stop flashing as phone shows h818 but kdz is for h815).I flashed h815T kdz multiple times(twice just today)but phone still shows h818 in lgup and in settings.the phone cant be h818 as it only has 1 sim slot.
imei is ok right now.SIM issue happened to be a ****ty sim cut job by the customer service guy.only remaining issue is the wrong version showing up in phone settings. cant flash MM due to that.
also,is there anything good about upgrading to MM???
Click to expand...
Click to collapse
Actually MM isnt an upgrade. Lollipop is best(maybe nougat will be worth anything). I think you should flash uk v20g kdz with lg up(or LG firware flash 2014). I suggest using LG UP also you can give TOT method a try
check this thread:
https://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848
reply to me if you will need any help
Minto107 said:
Actually MM isnt an upgrade. Lollipop is best(maybe nougat will be worth anything). I think you should flash uk v20g kdz with lg up(or LG firware flash 2014). I suggest using LG UP also you can give TOT method a try
check this thread:
https://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848
reply to me if you will need any help
Click to expand...
Click to collapse
cant flash tot as lgup and ft 2.0.1.6 check phone version....
no MM for me then...lets just wait for nougat
the only issue left now is no network reception
nizamelahi said:
cant flash tot as lgup and ft 2.0.1.6 check phone version....
no MM for me then...lets just wait for nougat
the only issue left now is no network reception
Click to expand...
Click to collapse
Do they check in build.prop? If so just change build.prop value and you're good to go. I think that there is also possibility to fake your software version and then flash anything you want
Wysłane z mojego LG-H815 przy użyciu Tapatalka
AT&T LG G8 - Want to flash stock firmware, possible? Trying to use it on Google FI and it seems hotpot and many other features aren't working. Phione is paid in full and unlocked. Factory firmware currently.
I want to flash my phone
So you're trying to flash stock on top of stock?
The request is to see if you can flash a bare LG unlocked ROM that comes with factory unlocked phones onto a phone that came with a stock AT&T ROM. The Att phone has now been carrier unlocked, is used on a different network, so the Att specific apps that replaced stock apps no longer work.
I was also wondering if I could do this with my Tmobile G8; unlock the phone, then flash the unlocked LG OS instead of the Tmobile version. My goal is debloat, and to be able to have the original Android hotspot app. Not to mention get rid of that terrible pink, loud, annoying carrier startup splash.
Also, I wonder if security updates would come faster when strait from LG instead of the carrier.
DrivenKeys said:
The request is to see if you can flash a bare LG unlocked ROM that comes with factory unlocked phones onto a phone that came with a stock AT&T ROM. The Att phone has now been carrier unlocked, is used on a different network, so the Att specific apps that replaced stock apps no longer work.
I was also wondering if I could do this with my Tmobile G8; unlock the phone, then flash the unlocked LG OS instead of the Tmobile version. My goal is debloat, and to be able to have the original Android hotspot app. Not to mention get rid of that terrible pink, loud, annoying carrier startup splash.
Also, I wonder if security updates would come faster when strait from LG instead of the carrier.
Click to expand...
Click to collapse
Let me know if you find a debloated is for a T-Mobile g8
Has anyone figured out any method that actually works for just flashing firmware to the g8?
Unlike Samsung phones where you can flash other firmwares via ODIN I don't think this phone has that ability. If you got to the ROM/Development section there are threads where people posted firmwares but no instructions on how to flash.
SantinoInc said:
Unlike Samsung phones where you can flash other firmwares via ODIN I don't think this phone has that ability. If you got to the ROM/Development section there are threads where people posted firmwares but no instructions on how to flash.
Click to expand...
Click to collapse
We can actually cross flash, but we need a modified lg dll to fool lgup into letting us flash any firmware.
I have tried just about everything I can think of to get this thing to flash. I saw some people using lgup v1.15 via the command line but that didn't work either.
cas8180 said:
I have tried just about everything I can think of to get this thing to flash. I saw some people using lgup v1.15 via the command line but that didn't work either.
Click to expand...
Click to collapse
I am trying to do the same. I have a sprint version of the g8 thinq which i would like to install the unlocked version of the firmware. Any way to do so?
I have 2 unlocked sprint lg g8. One of them doesn't have the Sprint splash screens. So somebody was able to do something.
DrivenKeys said:
The request is to see if you can flash a bare LG unlocked ROM that comes with factory unlocked phones onto a phone that came with a stock AT&T ROM. The Att phone has now been carrier unlocked, is used on a different network, so the Att specific apps that replaced stock apps no longer work.
I was also wondering if I could do this with my Tmobile G8; unlock the phone, then flash the unlocked LG OS instead of the Tmobile version. My goal is debloat, and to be able to have the original Android hotspot app. Not to mention get rid of that terrible pink, loud, annoying carrier startup splash.
Also, I wonder if security updates would come faster when strait from LG instead of the carrier.
Click to expand...
Click to collapse
Hello,
I've tried to flash another firmware on an AT&T LM-G820UM10i with LGUP and a firmware found on lg-firmware.
The LGUP restarted the phone in Firmware update mode, then on LGUP, I got an error
Error 0x5319, Not allow to change the device.(ATT_US->OPEN_CA)
So I've unplugged and reboot the phone. Still working.
asaural said:
Hello,
I've tried to flash another firmware on an AT&T LM-G820UM10i with LGUP and a firmware found on lg-firmware.
The LGUP restarted the phone in Firmware update mode, then on LGUP, I got an error
Error 0x5319, Not allow to change the device.(ATT_US->OPEN_CA)
So I've unplugged and reboot the phone. Still working.
Click to expand...
Click to collapse
Lg Blocked crossflashing , its not possible as of this moment.
siulmagic said:
We can actually cross flash, but we need a modified lg dll to fool lgup into letting us flash any firmware.
Click to expand...
Click to collapse
go ahead and make the very first ever how to tutorial and get all the glory
rldev said:
I have 2 unlocked sprint lg g8. One of them doesn't have the Sprint splash screens. So somebody was able to do something.
Click to expand...
Click to collapse
that just means one of the unit was not activated on Sprint (usually once activated Chameleon then kicks in and adds all the sprint stuff or boost depending on the MVNO)
I have all the necessary data and the LG DLL in the LGUP folder to put any ROM released, I have an LG G8 from AT&T, I am not within the United States but I am afraid that by modifying the ROM (KDZ) they will not work for me some things like 4G or some functions inside the phone, to specify live in Latin America, if someone helps me pass the LGUP data through Google Drive
MrFulgore said:
I have all the necessary data and the LG DLL in the LGUP folder to put any ROM released, I have an LG G8 from AT&T, I am not within the United States but I am afraid that by modifying the ROM (KDZ) they will not work for me some things like 4G or some functions inside the phone, to specify live in Latin America, if someone helps me pass the LGUP data through Google Drive
Click to expand...
Click to collapse
You can't cross flash
WHY? The hardware comes with ****ty bloated software, which I did not pay for and want off the ****ing device
q-killer said:
WHY? The hardware comes with ****ty bloated software, which I did not pay for and want off the ****ing device
Click to expand...
Click to collapse
Because the G8 and all newer LG phones have security measures to prevent cross flashing.
Many bloatware apps can be Disabled in App Info Settings. The rest can be removed with ADB shell "pm uninstall". Google it.
It's best to never ever buy carrier devices. There's a reason they're the ones sold with a discount :cyclops:
TheDannemand said:
Because the G8 and all newer LG phones have security measures to prevent cross flashing.
Many bloatware apps can be Disabled in App Info Settings. The rest can be removed with ADB shell "pm uninstall". Google it.
It's best to never ever buy carrier devices. There's a reason they're the ones sold with a discount :cyclops:
Click to expand...
Click to collapse
The Sprint LG g8 is recognized by lgup when it's on leaked beta. It's possible they haven't built in security measures yet, I'm going to try cross flashing
1.) PHONE ORIGINALLY LOCKED TO SPRINT
so i bougt this phone second hand in Europe. The phone had a bad screen and possibly some other damage i don't know about. Anyway, it turned out that the phone was locked to Sprint and i could not use it with my sim-card.
2.) PAID A GUY ON EBAY
https://www.ebay.com/itm/SPRINT-SIM...M-G710PM-CONVERT-TO-UNLOCKED-G7-/302468495217
I paid that guy (i do believe that he is also a member of the XDA community) and he ensured me that the phone was now unlocked and that i could use it with my sim-card. Under settings - hardware info it said model number was G710VM (or VMP or VMW, i don't remember exactly, but it was verizon wireless). the problem was that my phone still could not connect to the network. also, hidden menu *#*#4636#*#* was not accessible. Moreover, wi-fi connectivity was... mixed bag. Sometimes it worked, sometimes it did not work.
(in case the link is dead - he used octoplus to do the thing he did)
(he probably participated in this discussion: https://forum.xda-developers.com/lg-g7-thinq/help/lg-g7-sprint-unlock-t3823449)
3.) UPDATE TO PIE
https://www.****************/2019/06/17/download-and-install-lg-g7-android-9-pie-via-kdz-firmware/
After following these steps to get the Pie update (which i hoped would be the solution to my problems). Phone now reported it was G710ULM. Also, on lock screen in the top left corner it said 'No service - Mobitel'. Mobitel is the service provider here, so i was kinda hopeful, since it seemed that the phone can detect the network, but cannot connect. Hidden menu *#*#4636#*#* was accesible, but it only helped with my wi-fi connection. The 'select radio band' always reports 'selection unsuccessful'. I still could not set network manually or automatically for that matter (always error when i tried). I also tried the 10f firmware (oreo) and some others, but no luck. after i unlocked the bootloader i also performed the 'erase modemst1 modemst2' commands before flashing a new firmware but that also did not help.
(in case the link is dead - basically flashing firmware via LGUP)
4.) UNLOCKING THE BOOTLOADER
https://forum.xda-developers.com/lg-g7-thinq/how-to/how-to-bootloader-unlock-g7-thinq-t-t3963568
So this is where it is at at the moment. I followed this steps and now it reports product name LM-V350ULM and 'device state - unlocked' in the bootloader. If i boot it into recovery mode i just get the dead android with the red warning sign and 'no command' written under it. The device could access internet via wi-fi... until i put in the simcard. Now it cannot see the network anymore. If i repeat the command 'fastboot boot 710ULM11g_rootedboot.img' i get wifi back.
5.) THE POINT BEING?
Yeah. the point of this thread is obviously - what can i do to get the network?
This is my first android phone and yeah, quite the introduction to the android world that is.
Obviously i can (hardly, but i can) follow these step-by-step instructions, but apart from that, i have no idea what to do or how to do it. So yeah, this phone is pretty much just a wifi machine unless someone can help me.
I did unlocked my bootloader following this tutorial
https://forum.xda-developers.com/lg-g7-thinq/how-to/how-to-bootloader-unlock-g7-thinq-t-t3963568
Why is your device showing V350ULM (that is U.S. Unlocked V35 Thinq)? Reflash G7 pie firmware from Europe and access #*#*4636*#*# and change the network to GSM/WCDMA/LTE and check if it picks up the network.
sinkoo1979 said:
Why is your device showing V350ULM (that is U.S. Unlocked V35 Thinq)? Reflash G7 pie firmware from Europe and access #*#*4636*#*# and change the network to GSM/WCDMA/LTE and check if it picks up the network.
Click to expand...
Click to collapse
it's showing V350ULM because i unlocked the bootloader via the method described here: https://forum.xda-developers.com/lg-g7-thinq/how-to/how-to-bootloader-unlock-g7-thinq-t-t3963568
there is no other known method to unlock the bootloader on any LG G7 thinq except for the european version.
If i reflash the G7 pie firmware my bootloader gets locked again. I know because i already did that. While I had that firmware i also dialed *#*#4636#*#*, but when i change the network nothing really happens. If i choose the 'select radio band' sub-menu i always get the 'unsuccessful' message no matter which band i choose.
tws_ifp said:
it's showing V350ULM because i unlocked the bootloader via the method described here: https://forum.xda-developers.com/lg-g7-thinq/how-to/how-to-bootloader-unlock-g7-thinq-t-t3963568
there is no other known method to unlock the bootloader on any LG G7 thinq except for the european version.
If i reflash the G7 pie firmware my bootloader gets locked again. I know because i already did that. While I had that firmware i also dialed *#*#4636#*#*, but when i change the network nothing really happens. If i choose the 'select radio band' sub-menu i always get the 'unsuccessful' message no matter which band i choose.
Click to expand...
Click to collapse
I unlocked my bootloader using the same method and it will not lock bootloader if you flash pie firmware (once it's unlocked it's unlocked). And my G7 is showing as G710ULM not V350ULM (using the same method to cross flash firmwares). Make sure to flash European pie firmware.
I want to root an LG g4, the bootloader and/or recovery seem to be missing from the device. Purchased used off ebay. Is the LG LS991 [H811] Model (Sprint) (also seller claimed its unlocked and that seems to be so when i tested my sim). I can only get the phone into download mode, so when i check it with SALT I see the antirollback says "40". I heard the term frankenstine device thrown around before. IS it even possible to root this phone anymore? IS it possible to get access to the bootloader? I feel like i've been walking around in the dark for a while. I would greatly appreciate any advice
SolidIcecube said:
I want to root an LG g4, the bootloader and/or recovery seem to be missing from the device. Purchased used off ebay. Is the LG LS991 [H811] Model (Sprint) (also seller claimed its unlocked and that seems to be so when i tested my sim). I can only get the phone into download mode, so when i check it with SALT I see the antirollback says "40". I heard the term frankenstine device thrown around before. IS it even possible to root this phone anymore? IS it possible to get access to the bootloader? I feel like i've been walking around in the dark for a while. I would greatly appreciate any advice
Click to expand...
Click to collapse
In SALT switch to develop mode (SALT thread FAQ tells how) and then check the ARB again
steadfasterX said:
In SALT switch to develop mode (SALT thread FAQ tells how) and then check the ARB again
Click to expand...
Click to collapse
Hi, I've got a similar issue. US991 bought new 2017 from LG via newegg. Advertised unlocked, assumed that just meant carrier unlocked, which it is, but also has OEM unlock flag in developer options. LGMENU shows ARB=2 but SALT stable shows ARB=20 so won't flash USU. SALT develop mode shows ARB=2.
Do I USU from develop mode? Does this one need USU (have never tried to flash TWRP or root or anything. Any help/guidance is welcome. the MM LG pushed to it in 2017 doesn't have firmware support for VOLTE which i was hoping to get by flashing a new ROM since i have have no calling since the AT&T 3G shutdowm.
ldh37 said:
Hi, I've got a similar issue. US991 bought new 2017 from LG via newegg. Advertised unlocked, assumed that just meant carrier unlocked, which it is, but also has OEM unlock flag in developer options. LGMENU shows ARB=2 but SALT stable shows ARB=20 so won't flash USU. SALT develop mode shows ARB=2.
Do I USU from develop mode? Does this one need USU (have never tried to flash TWRP or root or anything. Any help/guidance is welcome. the MM LG pushed to it in 2017 doesn't have firmware support for VOLTE which i was hoping to get by flashing a new ROM since i have have no calling since the AT&T 3G shutdowm.
Click to expand...
Click to collapse
only H811 does NOT need UsU. The h815 can be unlocked as well but only when you have the unlock bin already as the LG website closed. so: yes you need UsU.
yes keep SALT on develop and flash UsU there. The good thing is that FAQ #1 applies to your device so you could even go back if something is not working as you want it.
Thanks for your help steadfasterX.
US991_UsU_unlock.zip in develop mode worked great.
twrp-3.5.2_9-PREVIEW-275_g4.img worked great.
however, i have a new issue. when i flashed US991_UsU_baseband_flash-in-twrp.zip my SIM is no longer recognized; mobile data can't be enabled, says connection not allowed so can't add an APN. LGMENU shows normal APNs (ATTPHONE, NEXTGENPHONE, etc are gone). has a couple prepay APNs listed that i don't recognize and can't edit thru LGMENU. SALT GPT is H811 which i thought was just for the ROMs. do i need to actually flash H811 basebands? or just flash one of your H811 ROMs like lineage 18.1? not sure how to fix this. again, any help/guidance is much appreciated.
steadfasterX said:
only H811 does NOT need UsU. The h815 can be unlocked as well but only when you have the unlock bin already as the LG website closed. so: yes you need UsU.
yes keep SALT on develop and flash UsU there. The good thing is that FAQ #1 applies to your device so you could even go back if something is not working as you want it.
Click to expand...
Click to collapse
Thanks for your help steadfasterX.
US991_UsU_unlock.zip in develop mode worked great.
twrp-3.5.2_9-PREVIEW-275_g4.img worked great.
however, i have a new issue. when i flashed US991_UsU_baseband_flash-in-twrp.zip my SIM is no longer recognized; mobile data can't be enabled, says connection not allowed so can't add an APN. LGMENU shows normal APNs (ATTPHONE, NEXTGENPHONE, etc are gone). has a couple prepay APNs listed that i don't recognize and can't edit thru LGMENU. SALT GPT is H811 which i thought was just for the ROMs. do i need to actually flash H811 basebands? or just flash one of your H811 ROMs like lineage 18.1? not sure how to fix this. again, any help/guidance is much appreciated.
ldh37 said:
Thanks for your help steadfasterX.
US991_UsU_unlock.zip in develop mode worked great.
twrp-3.5.2_9-PREVIEW-275_g4.img worked great.
however, i have a new issue. when i flashed US991_UsU_baseband_flash-in-twrp.zip my SIM is no longer recognized; mobile data can't be enabled, says connection not allowed so can't add an APN. LGMENU shows normal APNs (ATTPHONE, NEXTGENPHONE, etc are gone). has a couple prepay APNs listed that i don't recognize and can't edit thru LGMENU. SALT GPT is H811 which i thought was just for the ROMs. do i need to actually flash H811 basebands? or just flash one of your H811 ROMs like lineage 18.1? not sure how to fix this. again, any help/guidance is much appreciated.
Click to expand...
Click to collapse
well there are 2 problems here:
1. not many us991 users here so less user feedback
2. usually no one wants to stay stock so less user feedback
the main problem is that the baseband files are incompatible with your bootloader stack (hopefully its just that). a fix for that would be creating a new baseband flash file from your modem partition. pls provide it from your backup BEFORE using UsU and I can take a look
steadfasterX said:
well there are 2 problems here:
1. not many us991 users here so less user feedback
2. usually no one wants to stay stock so less user feedback
the main problem is that the baseband files are incompatible with your bootloader stack (hopefully its just that). a fix for that would be creating a new baseband flash file from your modem partition. pls provide it from your backup BEFORE using UsU and I can take a look
Click to expand...
Click to collapse
Thank's again for your help. attached is pre-USU modem from SALT backup
ldh37 said:
Thank's again for your help. attached is pre-USU modem from SALT backup
Click to expand...
Click to collapse
hmm seems it was not attached
steadfasterX said:
hmm seems it was not attached
Click to expand...
Click to collapse
damn. let me try that again.
ldh37 said:
damn. let me try that again.
Click to expand...
Click to collapse
sorry for the delay, went to vacation...
pls try the attached one and let me know how it goes!