[LM-G710V] The LG G7 ThinQ Retail Mode/Demo Mode Thread

[Mindvisi0n]

You can get everything working that works on the demo ROM (AFAIK) but you can't get it working like a real consumer model. Be warned though, I don't think it is possible to return to the demo ROM after leaving.

Also, If you are able to, could you find out if the device is able to go into it's deepsleep state before cross flashing?

I haven't managed to get that to work at all, it's now the main problem I have with the phone meaning it has poor standby battery life (good SOT though)

Merry Christmas!

I don't think so it's going into a deep sleep state. I bought two demo devices this one and v60.
v60 doesn't drop battery that much when not used but G7 drops battery % quite a lot when not in use.
What's the quickest way to test if G7 is going into a deep sleep state?

 

[the-blind-bandit]

I don't think so it's going into a deep sleep state. I bought two demo devices this one and v60.
v60 doesn't drop battery that much when not used but G7 drops battery % quite a lot when not in use.
What's the quickest way to test if G7 is going into a deep sleep state?

Well I can't check this works on android 8 at the moment but if you look in 'Settings>About phone> Uptime' It may also tell you the percentage of time the device has been on which was spent in the deep sleep state. Basically, if it says anything other than 0%, It is working and I may have a chance of getting it to work on custom ROMs too.

Based on what you say about the standby battery use, it seem likely deep sleep isn't ever working on the demo G7.

 

[noidodroid]

The device has no modem.. so unless you have the chips and so forth to solder on the logic board then program you will have simply a wifi device. .. now that LG is out of the game you might be better off just buying and selling or parting out these and other DEMO units besides certain Verizon (some still with modem).

 

[tux8880]

Thanks the-blind-bandit i got my Retail unit this week, unlocked and tried you method for custom rom works really well, one thing is the storage is at 32GB as mentioned, its shows like this in recovery i cant work it out, i tried flashing other offical roms inc android 8\9 all show 32GB tried without flashing modded modem wasnt sure if it had anything to do with it. do you think there was only 32GB in the retail model and it was only a Spoof in the Retail FW? i wont to try flashing windowsArm64 as this phone should support but with only 32GB not sure i can. thanks again!​

 

[skrobul]

I bought G7 only to use as a music player so I'm mostly happy with the stock ROM after debloating it from few LG apps and removing retail mode as outlined earlier in this thread. It works, but still does not charge to 50%.

Can you guys confirm if flashing the custom rom will remove the 50% charging restriction?

 

[tux8880]

I bought G7 only to use as a music player so I'm mostly happy with the stock ROM after debloating it from few LG apps and removing retail mode as outlined earlier in this thread. It works, but still does not charge to 50%.

Can you guys confirm if flashing the custom rom will remove the 50% charging restriction?

Yes the Restriction isnt there anymore, i left it from 100% to 64% total 15hours overnight so not doing anything, it dosnt deep sleep, could you not sure how confirm its got 64GB how much free space have you got after debloating?

 

[skrobul]

Yes the Restriction isnt there anymore, i left it from 100% to 64% total 15hours overnight so not doing anything, it dosnt deep sleep, could you not sure how confirm its got 64GB how much free space have you got after debloating?

Thanks! It doesn't have 64GB to start with. I wasn't doing the debloat for disk space but more in view of battery drain. Nevertheless, this is how it looks right now:

judyln:/ $ df -h
Filesystem              Size  Used Avail Use% Mounted on
/dev/root               4.2G  3.0G  1.1G  74% /
tmpfs                   1.7G  1.2M  1.7G   1% /dev
/dev/block/dm-1         953M  758M  179M  81% /vendor
tmpfs                   1.7G     0  1.7G   0% /mnt
/dev/block/sde4         182M   52M  130M  29% /firmware
/dev/block/sde8          27M   20M  7.2M  73% /vendor/dsp
/dev/block/sda5          27M  184K   27M   1% /persist
/dev/block/sda18        3.8M   44K  3.6M   2% /oem
/dev/block/sda3         1.8M  784K  1.0M  44% /vendor/sns
/dev/block/sda2          10M  904K  8.6M  10% /vendor/persist-lg
/dev/block/sda1          27M  7.7M   19M  29% /vendor/mpt
/dev/block/sda13        3.8M   44K  3.6M   2% /vendor/srtc
/dev/block/sda12        5.8M  704K  4.9M  13% /vendor/fota
/dev/block/sda16         35M   44K   35M   1% /vendor/carrier
/dev/block/sda24        2.9G  2.6G  212M  93% /oem/OP
/dev/block/dm-2          42G   33G  9.0G  79% /data
/data/media              42G   33G  9.0G  79% /storage/emulated
/mnt/media_rw/6E16-84BC 233G   62G  171G  27% /storage/6E16-84BC
judyln:/ $

Don't really care about storage because I only have Poweramp installed.

 

[tux8880]

thank you for posting that, once i have messed about with mine its currently got removed partitions etc with messing, ill reflash. but yeah ours are missing something onced its been crossed flashed, anyone got any ideas?

 

[tux8880]

thank you for posting that, once i have messed about with mine its currently got removed partitions etc with messing, ill reflash. but yeah ours are missing something onced its been crossed flashed, anyone got any ideas?

Stock FW, G710EM30f_00_OPEN_EU_OP_1124.kdz this is booted (strange thing if you reboot or power off then back on it erases without modem mod)

Strange.

 

[skrobul]

Did anyone figure out way to disable the 50% charge limit WITHOUT upgrading to Android 10? I want to stay on Android 8, because LG provides DAC drivers only for Android 8.

 

[tux8880]

Did anyone figure out way to disable the 50% charge limit WITHOUT upgrading to Android 10? I want to stay on Android 8, because LG provides DAC drivers only for Android 8.

official roms work, but as mentioned you will have to do the edit to get wifi working and flash the custom modem. so you can stick to android 8 but you will have to root it somehow without flashing custom recovery as it will mess up the rom. hope this helps.

 

[skrobul]

official roms work, but as mentioned you will have to do the edit to get wifi working and flash the custom modem. so you can stick to android 8 but you will have to root it somehow without flashing custom recovery as it will mess up the rom. hope this helps.

for root, there is probably some exploit lying around (dirty pipe?)
Now the flashing custom modem is something I don't know how to get around without custom recovery. Does QFIL allow flashing a single partition (I don't have Windows to test it, but willing to build a virtual machine later on)?

 

[tux8880]

Yep Qfil will flash the custom modem that will stop it rebooting, dirty pipe possibly, not looked in to it. Let me know how you get on!.

for root, there is probably some exploit lying around (dirty pipe?)
Now the flashing custom modem is something I don't know how to get around without custom recovery. Does QFIL allow flashing a single partition (I don't have Windows to test it, but willing to build a virtual machine later on)?

 

[tux8880]

Yep Qfil will flash the custom modem that will stop it rebooting, dirty pipe possibly, not looked in to it. Let me know how you get on!.

was looking at dirty cow exploit that will do it!

 

[the-blind-bandit]

was looking at dirty cow exploit that will do it!

Sorry I haven't been paying attention

In this post, if you go to my download link and go to 'boot images' folder, any marked with [Magisk] are already Magisk patched / rooted, you just need to install the magisk manager app.
Also, any marked OF, have OrangeFox recovery too.

To the boot images you can just load them to boot_a and boot _b partitions in qfil or flash in orange fox if you already have that installed.

Edit:

If you wish to patch the boot images yourself, there are a couple of ways to do it but the easiest - - read one of the boot partitions in qfil, find the file it makes, rename it to something.img and pass it to a magisk manager app to patch as normal. This is quite tedious to do for multiple images, hence why I provided them.

Edit 2:

Just thought I'd mention dirty cow shouldn't work on basically anything which has received an update since it got a lot of media attention.

 

[tux8880]

Sorry I haven't been paying attention

In this post, if you go to my download link and go to 'boot images' folder, any marked with [Magisk] are already Magisk patched / rooted, you just need to install the magisk manager app.
Also, any marked OF, have OrangeFox recovery too.

To the boot images you can just load them to boot_a and boot _b partitions in qfil or flash in orange fox if you already have that installed.

Edit:

If you wish to patch the boot images yourself, there are a couple of ways to do it but the easiest - - read one of the boot partitions in qfil, find the file it makes, rename it to something.img and pass it to a magisk manager app to patch as normal. This is quite tedious to do for multiple images, hence why I provided them.

Edit 2:

Just thought I'd mention dirty cow shouldn't work on basically anything which has received an update since it got a lot of media attention.

He wants to use android 8 for power amp, if he flashes one of them boot images it will stop the rom from booting? He will need root to fix wifi.

 

[the-blind-bandit]

He wants to use android 8 for power amp, if he flashes one of them boot images it will stop the rom from booting? He will need root to fix wifi.

Oh, sorry I didn't really read much of your last posts and I've been away a while - I must look pretty stupid at the moment

There are actually some magisk patched boot images in that MEGA folder for android 8 already - they are EM10b and EM10s.

I'm pretty sure I never managed to get orange fox (patched boot) working on android 8 and magisk behaves strangely too. Magisk manger seems to always crash when you open it but you can still use it since the root access conformation popup still works.

Remember, in android 8 you have to edit /vendor/persist-lg/wifi/WCNSS_qcom_cfg.ini file to force 2.4ghz wi-fi.

 

[skrobul]

There are actually some magisk patched boot images in that MEGA folder for android 8 already - they are EM10b and EM10s.

thanks - I assume these are stock android 8 ? I will be giving them a go, just need to read a bit more to make sure that I fully understand the steps before bricking the device.

Just thought I'd mention dirty cow shouldn't work on basically anything which has received an update since it got a lot of media attention.

correct, iirc dirtycow should not work on any android after 2016 security patch which roughly means until android 7 nougat.


That's why I mentioned dirty pipe which is similar but newer. I am still debating if all this effort and risk of bricking the device is still worth it just to get around the 50% charging limitation.

edit: dirty pipe will not work as it's available from kernels 5.8.x. My LG is running 4.9.65, so that avenue is no-go.

 

[the-blind-bandit]

thanks - I assume these are stock android 8 ? I will be giving them a go, just need to read a bit more to make sure that I fully understand the steps before bricking the device.


correct, iirc dirtycow should not work on any android after 2016 security patch which roughly means until android 7 nougat.


That's why I mentioned dirty pipe which is similar but newer. I am still debating if all this effort and risk of bricking the device is still worth it just to get around the 50% charging limitation.

edit: dirty pipe will not work as it's available from kernels 5.8.x. My LG is running 4.9.65, so that avenue is no-go.

First be sure that the device is still not going into deepsleep state while on the retail/demo ROM (screen-off time will be rubbish compared to screen-on time), and !!PLEASE!! let me know.

If deepsleep is not working as I suspect is the case, then I'd definitely recommend trying to change over. EDL mode, which you use with qfil is pretty bulletproof and I seriously doubt you'll be manage to permanently brick your device. One thing to note, is that EDL mode is very faffy to get into - try to get a bit comfortable accessing it first, don't expect to be able to do it every time though.

I still don't know of a way to return to the retail ROM once you have left it.

 

[tux8880]

@the-blind-bandit, did you ever find what was going on with the 32gb storage issue I can't figure it out I think it might actually be 32gb.