yashsingh1/xdaforums huggingface dataset:
[LG V20 Questions & Answers] Critical Detox:
It's supposed to be the opposite effect when you plug in, That is weird. I don't seem to have this issue currently, just watched my CPU activity for a bit and it's scaling as it should depending on CPU load.
[LG V20 Questions & Answers] KUSOsan:
This has happened to me before on certain ROMs. Phone becomes worse than TouchWiz on my old S4. I've experienced it mainly on WETAs ROM but not always so im not sure what makes it occur
[LG V20 Questions & Answers] ApplePines101:
Same thing happens to me! It becomes almost unusable, and the device isn't even warm. It seems like recently my V20 has gotten stuck in this "slow mode", so it is unusable, no matter if it is plugged in or not :mad:

This phone has been nothing but trouble since I bought close after launch.
[LG V20 Questions & Answers] jayochs:
yeah, I'm getting sick of it tbh. I want to try a pixel now. I'm over how laggy this damn phone gets. even opening the camera takes forever compared to my s7 and that was one laggy phone.
[MTCD  Android Head Units Q&A] doblebo:
Hi!

I have a PX3 MTCD (XRC) quad core 2GB with android 7.1.2 nougat

nougat is nice, but i'm wondering if it is really necessary to have the latest android offering on these units?

would there be a benefit to downgrading to a rooted Malaysk 5.1 rom?

I'm looking for speed and reliability.

Usually I'll have the following running:

nova launcher

neutron for music player (my music is all FLAC files which neutron plays.. also neutron widget is great/stable)

or sometimes pandora

navigation: google maps, sometimes waze

when not actively using navigation apps to get anywhere, i'll have MiniMap overlay on the left half of the home screen and pandora/neutron widgets on the right, just below a Google Now widget (shows weather and some important info)

minimap overlay: https://play.google.com/store/apps/details?id=com.teqtic.minimap&hl=en (very cool floating/re-sizable)

I've got a mobile jetpack in the glovebox for data (not sure I can recommend this if you live someplace hot)

Here are some specs of the unit I've got:

CPU	Rockchip 3188 Cortex A9 Quad core

RAM	DDR3 2GB

Flash	16GB

GPS	SIRF III

Loader	FORYOU DL-30

Amplifer IC	ST TDA7388

Radio IC	ST TDA7786

Bluetooth	4.0

Resolution	1024*600

Max output	4*50W

Main Frenqency	1.6GHz

So should I stick with 7.1.2 or would there be much more benefit for speed/customization/?? if I downgrade for rooted rom?

Thanks!
[MTCD  Android Head Units Q&A] opc1135:
Do you installed the Malaysk rom? I have the same system and i want to downgrade it, but im so confused because ther's not a lot of info. for px3

Please tell me if u do it ;)
[MTCD  Android Head Units Q&A] doblebo:
i have not... but if you end up doing it, let ME know ;)
[MTCD  Android Head Units Q&A] A_hijazi_:
Hello there

have you figured any way to root ?

---------- Post added at 02:10 AM ---------- Previous post was at 02:09 AM ----------

Hello there

have you figured any way to root ?
[MTCD  Android Head Units Q&A] Turbojo:
I'm +1 for the rooting question as I have not figured any way to do it yet.
[MTCD  Android Head Units Q&A] aeidian:
I have pretty much the same unit, for my Kia optima. I tried to install malaysk's rom and recovery asked for nupdate.img, not dupdate.img like all these other threads specify. Even renaming the file to nupdate didn't work, told me invalid firmware. I have another thread asking for advice, but it hasn't garnered a response.
[MTCD  Android Head Units Q&A] Frazzy:
I have the same unit. Do you haven any problems with the car control app?
[MTCD  Android Head Units Q&A] mp3joker:
Has in the meantime already someone have found away to root the HU?

I have a similar MTCD_KLD_V2.58_1

and also look for a root solution
[MTCD  Android Head Units Q&A] Whizzbangles:
XRC Root Solution

Hi All,

Might have something that may help. An img file provided as a root solution but A-Sure (another supplier on the list) but I cannot get it to work I either get a partial file or a complete one. I cant post links due to my current post count but if anyone want the file to check out and maybe figure out where I am going wrong you are welcome. Drop me a PM and I will pass on my G-drive location for the download

Mine is MTCD_XRC_2.54a_1

---------- Post added at 01:15 PM ---------- Previous post was at 12:38 PM ----------

Here are the details on my HU

64Bit Octocore - Coretex A53@1.5

2GB

MTCD_XRC_V2.54a_1 June 16 2017

Branded under A-sure, this is a dedicated shell for an Audi TT

Many issues as with many of these HUs

No steering controls

Partial Bluetooth support

Doesn't recognise 4G USB Dongles
[MTCD  Android Head Units Q&A] cedfx2:
[MENTION=8561786]Whizzbangles[/MENTION]

Hi,

I have the same unit as yours mounted in my 2008 audi TT mk2 and everything works perfectly : bluetooth, steering wheel control, usb sticks...

Didn't try to root or change anything yet. Only issue is "Audroid auto apk I downloaded (not present in my Play Store) is not working.

Still discovering MTCD world...
[MTCD  Android Head Units Q&A] Whizzbangles:
I would be interested in your settings around the canbus and also just a check on how you have set up the wiring.
[MTCD  Android Head Units Q&A] maniac2k:
I just rooted my mtcd_kld_v2.58_1 with KingOroot. I then upgraded SU to SuperSU and uninstalled KingOroot while still retaining root. Its in one of the threads in this forum.
[MTCD  Android Head Units Q&A] Whizzbangles:
Yes, Kingoroot does the job. I am still however struggling to get my MF730M working.
[MTCD  Android Head Units Q&A] Turbojo:
Hi,

have you got a link for the apk as kingoroot with me just crashes on startup?
[MTCD  Android Head Units Q&A] maniac2k:
https://root-apk.kingoapp.com/kingoroot-download.htm
[MTCD  Android Head Units Q&A] Turbojo:
Ah, thats the one that crashes on startup. Shame.
[MTCD  Android Head Units Q&A] nosidefcp:
It crashes on mine too. Rk3188 px3 with 2gb of RAM. 7.1
[MTCD  Android Head Units Q&A] maniac2k:
Im running the px5. Does it install superuser and give you root? If so, you can install supersu after and uninstall kingoroot and superuser, leaving root with just supersu.
[MTCD  Android Head Units Q&A] meggamoon:
Hallo, can I root my PX3 MTCD_KLD_V2.59_1 ?

This are the dates:

Model: px3 (1024x600 0)

Android version: 7.1.2

Android security level: 5. Mai 2017

Kernel version: 3.0.101+ rocky@hctr930 #746 Sat Sep 9 20:52:39 CST 2017

Buil number: px3-userdebug 7.1.2 NHG47L eng.hct.20170915.133654 test-keys

MCU version: MTCD_KLD_V2.59_1 Aug 3 2017 09:33:07

CPU: ARM Coretex-A9 [MENTION=1247388]1.6[/MENTION]GHz (x4)

Memory: 2048 MB

KingoRoot will not startet !

Thank you
[MTCD  Android Head Units Q&A] typos1:
The RK3188/PX3 2Gb N units use a slightly modified SoM compared to the older RK3188/PX3 1Gb L units (the motherboard is the same). [MENTION=5092263]Hal9k_[/MENTION] managed to get the N ROM to work on the older board simply by altering the partitioning so it should theoretically be possible to make the L ROM run on the later units as well.
[MTCD  Android Head Units Q&A] arshish1612:
I have the same unit. Tried the PC versions of both kingroot and kingoroot. No Luck!

I've dropped Hal9k_ a PM asking if he could make a version of his ROM for our device.. Let's see..
[MTCD  Android Head Units Q&A] meggamoon:
Do not know how to rooten ?

Or is there a stable Custom Rome for this RNS ?

greeting

meggamoon
[MTCD  Android Head Units Q&A] Znuff:
Having the same issue(s) with PX3.

Not able to root MTCD_KLD_V2.58_1 with KingoRoot (crashes on start).

I am also unable to use a 3G USB Modem (because no root) with PPP Widget 3.

ODB Information is not fully recognized. Steering wheel controls work and rear-camera controls, too, but that's about it. No actual engine information or anything else.

Seems that so far this HU is kind of useless for my needs, unless someone can figure out a way to root.
[MTCD  Android Head Units Q&A] Shadowmasterrr:
if i could flash a malayskcustomrom on android 7 i don´t need any root solution. i hope there fix this nupdate.zip problem and i can downgrade the radio. Nougat is so slow it is impossible to work with these radios.
[MTCD  Android Head Units Q&A] typos1:
What car do you have ? - not all cars will show engine info.

[MENTION=3590033]Malaysk[/MENTION] is taking donations for a N unit, maybe you should donate ?

what is the "nupdate.zip problem" ?
[MTCD  Android Head Units Q&A] Znuff:
It should. It's a VW Touareg.

Considering it gets wheel-position from it's sensor (for the rear-view camera), I'm pretty sure it should also display engine information.
[MTCD  Android Head Units Q&A] typos1:
It depends on the CAN Bus decoder type, whether HCT/MTC support this particular vehicle and even the software version (on the MTCB units 4.4.4. the "Vehicle" app didnt show anything, but on 5.1.1 it did), so i ts hard to say whether its a fault or not.
[MTCD  Android Head Units Q&A] Znuff:
I didn't really have time to test all profiles.

So far from the factory settings I configured it to use the first profile (Simple...Something for Volkswagen and Skoda).

I do have another profile for VW Touareg, but that doesn't really do anything.
[MTCD  Android Head Units Q&A] typos1:
Try all the CAN Bus profiles.

Each profile is named after the CAN Bus decoder manufacturer - Simple is for Simple CAN Bus decoders, Raise is for Raise ones, etc, the other manufacturers are Bagoo and Union.

You should use the profile that matches your CAN bus decoder manufacturer.
[MTCD  Android Head Units Q&A] Codycato:
ANY LUCK?

I have PX3 7.1.2 and just need root and xposed installed.:rolleyes:

No custom rom..because i dont want to remove the preinstalled BMW functions
[MTCD  Android Head Units Q&A] typos1:
A custom ROM will not remove any BMW functions - no other MTCB/C or MTCD/E custom ROM removes any CAN Bus functions that come with the standard ROM.

Currently there are no custom ROMs for MTCD/E Nougat devices anyway, but [MENTION=3590033]Malaysk[/MENTION] is working on one.
[MTCD  Android Head Units Q&A] moreno_cos:
Is it necessary to be root to downgrade android 7.1.2 to 5.1?

I have an XRC px3 android 7.1.2 unit and I am thinking of downgrading 5.1 GS
[MTCD  Android Head Units Q&A] typos1:
No - you do it from recovery.
[Moto G4 Plus Questions & Answers] Danny1976:
I am on Stock Nougat 7.0 14-4 March security update. Recently I got a update for Android Messages 2.3.269 from the play store and the updated app crashes upon opening. If I use an older version like v2.2.076, it works fine. I also downloaded different apps from APKMirror and those also crash upon opening. I attached a log of the crash of the clock app (http://www.apkmirror.com/apk/google...lease/clock-5-1-4224536-android-apk-download/) that I downloaded from APKMirror. Anyone know why the apps are crashing.
[Moto G4 Plus Questions & Answers] Danny1976:
Figured it out. It was substratum on stock experimental. Uninstalled the dark theme and it worked fine.
[Android Q&A, Help & Troubleshooting] xBastek:
So i have problem running this game on my z1c with aicp 7.1.2.

Im getting the error=60 which is the rooted phone.

Anyway to bypass it? I tried hiding root with magisk and even unrooting the phone with no luck.
[T-Mobile LG V10 Q&A, Help & Troubleshooting] rcmaehl:
I've disabled all other icons on my Status bar but I'm unable to remove the Battery and 4G icon. Is there a specific way I can manually remove these? Thanks!
[Lenovo ZUK Z2 (Plus) Questions & Answers] liwevire:
I came across that ZUK Z1 supports direct charge that is once phone is fully charged, phone will be powered completely by charger directly, keeping the battery disconnected. Is it available for ZUK Z2 Plus too? so that Z2 Plus users can put device on charge while sleeping without worrying about overcharge.

https://www.androidheadlines.com/2015/10/zuk-z1-takes-really-good-care-battery-heres.html
[LG V20 Guides, News, & Discussion] Redline:
[MENTION=6984210]emdroidle[/MENTION] I'm getting "permission denied" from KDZWriter when I execute the kdzwriter -a /external_sd/H990_something.kdz command in TWRP Terminal. I noticed that I can't umount /system either, it says it's an invalid argument?

Would this be something to do with the locking of /system I read about earlier? I did try manually mounting /system in TWRP before trying anything too, but that doesn't seem to have helped at all.

I've also tried doing mount -o rw,remount,rw /system

I'm running rooted 10C-TWN firmware with Magisk (interestingly, phone will flat out refuse to boot if I flash SuperSU, so Magisk it is). When I go to install Magisk it says "mounting /system" with no problems at all O.o
[LG V20 Guides, News, & Discussion] kuachi00:
Thanks very much for your work.

Iam confused about the instructions im not very familiar with adb shell . can you please elaborate more the steps for easy running of kdzwriter. thank you and let me tell you that you are awesome
[LG V20 Guides, News, & Discussion] dadme:
Where is kdzwriter.gz? No attachment? Works kdzwriter from Dirty Santa thread?
[LG V20 Guides, News, & Discussion] kuachi00:
i am getting kdzwriter: permission denied
[LG V20 Guides, News, & Discussion] emdroidle:
My first attempt to install Magisk failed, "Unable to repack ramdisk". At which point I had a problem. Suddenly the "-k" option came into existence and a retry succeeded. :)

Okay, I guess I'm not that great at writing instructions. The added `chmod` will fix the "permission denied" error.

The `umount` is more an issue if you've updated to TWRP 3.1.1-0 which does successfully mount /system, whereas TWRP 3.0.2-1 didn't. The "invalid argument" is saying it isn't mounted and you can simply proceed. It is a problem if it says "busy". In this case you would get an error "Failed mounting system for kmod saving: <message>", then "kdzwriter: Failed while reading kernel modules" and `kdzwriter` wouldn't proceed.

Also replace "/external_sd/H990_something.kdz" with the filename/where you installed it (did you really rename the KDZ file to H990_something.kdz?).

Notice the "Download" tab at the top of this thread?
[LG V20 Guides, News, & Discussion] Mars104:
does anyone have the link to TWRP 3.1.1-0 for the h990ds? My device didn't seem to like the command 'kdzwriter -a /external_sd/H990ds10f_00_OPEN_TW_DS_OP_0622.kdz' I received the error "Failed while writing /system, major problem, PANIC!" . It's in a bootloop now should have run '-at' first!

second attempt...

You have to try harder than that message to make me panic ;)

i figure my 10f kdz must be corrupt, so tried 10e

kdzwriter -a /external_sd/H990ds10e_00_OPEN_TW_DS_OP_0517.kdz

errors recieved were:

Failed mounting system for kmod restoring: Invalid argument

kdzwriter: Failed while restoring kernel modules, recommend kernel reinstall!

I reinstalled the kernel. Not sure what the kmod error means?

Anyway android upgraded and works a charm. Didn't fix my camera focus issue but i guess that must be down to the kernel.

Thanks for this awesome tool emdroidle, are you taking donations?
[LG V20 Guides, News, & Discussion] dadme:
Sorry, Emdroidle i use classic theme, so download tab is not visible. Can use this TWRP https://xdaforums.com/v20/development/recovery-twrp-3-1-0-0-touch-recovery-t3603760, elsa version? TWRP can be updated from TWRP 3.0.2.1 or from fastboot?

Got this on 10f H990DS TWN,

Failed mounting system for kmod restoring: Invalid argument

kdzwriter: Failed while restoring kernel modules, recommend kernel reinstall!

Finished rewrite of system area

Begining rewrite of modem area

ooo...ooo.oooooooo.ooooo...oooooooo.o*

Finished rewrite of modem area
[LG V20 Guides, News, & Discussion] emdroidle:
Either TWRP should work, just there is a small behavior difference. TWRP 3.0.2-1 has a small bug and never manages to mount /system; while TWRP 3.1.1-0 does manage to mount /system. With 3.0.2-1 the `umount /system` can be skipped, with 3.1.1-0 that command needs to be run before /system is upgraded.

Well seeing that "PANIC" message means something rather problematic occurred, and the state of /system is Bad(tm).

"kmod" is short for "kernel module". The Linux kernel has the capability to load/unload extra bits of code (generally drivers) while the kernel is running. These are specific to the particular kernel and trying to load modules for the wrong kernel could fail or cause problems.

I was surprised to learn the Bluetooth and FM Radio drivers are modules, as well as the exfat filesystem is a module. The userspace portion of talking to the Bluetooth chip won't load unless it successfully loads "brcm_bt_drv.ko" into the kernel.

The kernel modules are located in /system/lib/modules. When writing /system, `kdzwriter` first tries to mount /system and save copies of the modules. Once /system has been rewritten it tries to restore them. If either of those steps fails, there is need to reinstall the kernel since the modules on /system will match LG's stock kernel, not the static-fixed kernel I built.

Well I don't send them back. :)
[LG V20 Guides, News, & Discussion] Redline:
Haha no mate I didn't, was just using the name for the KDZ from your example :p

Just wanted to say thanks as well. Used your tool with the updated instructions. Booted into TWRP, plugged into PC, used ADB from Command Prompt to do the whole thing. Went perfectly. It gave me a line when it was done about recommending a kernel re-install, so once the tool was finished I re-flashed the H990 kernel zip from your other thread, Magisk, the latest Aroma GAPPS package, and then rebooted. After the optimization process, I'm now on V10F-TWN with a patch date of 1st June, and rooted.

It's a touch of a process to get to this point, but if you follow everything properly to the letter, it works. Cheers mate. :D
[LG V20 Guides, News, & Discussion] kuachi00:
i rename my kdz into "some.kdz" i run kdzwriter -at /external_sd/some.kdz itsays : Next chunk starts beyond end of file, Failed to open KDZ file, aborting what does this mean thank you
[LG V20 Guides, News, & Discussion] emdroidle:
Okay, fine. I just wanted to make sure since there are people who don't realize you're supposed to adapt the name and complain when things don't work. Just one of those things that makes one go wait-a-minute...

Most likely you don't have the full file. Were you downloading it and the download got interrupted?
[LG V20 Guides, News, & Discussion] crombull:
Success! Upgraded to 10f with root :D
[LG V20 Guides, News, & Discussion] zinou213:
emdroidle

Can you please make a small tool that extract the content of the KDZ file and the system.img file to modify things with ease on PC, and can easier interchange between versions to see what bugs can be avoided....
[LG V20 Guides, News, & Discussion] askermk2000:
There already are tools for this. https://github.com/Bigcountry907/kdztools and https://xdaforums.com/showthread.php?t=2600575

Though I'm not sure they are completely compatible with the newest kdz's. Simple extraction should work.

-------

Nice tool btw. Now if only it where possible to flash kdz's directly in EDL mode, that would be great !! :D
[LG V20 Guides, News, & Discussion] zinou213:
Thank you, I know this tools but i want a confirmation about there compatibility with v20's KDZs, and what is the EDL mode you talk about ??
[LG V20 Guides, News, & Discussion] askermk2000:
That last part was not for you specifically. It's Sahara Download Mode, or Emergency Download Mode I was talking about, something you probably won't know much about until you brick your phone ;)
[LG V20 Guides, News, & Discussion] zinou213:
OK Sahara Download Mode i know, i saw this with my old bricked gflex 2 that i unbricked with too many tools and processes that i forget now...
[LG V20 Guides, News, & Discussion] kuachi00:
why is it that only the android security patch has been changed and the version is still v10e iam trying to upgrade to v10g thanks

---------- Post added at 11:09 PM ---------- Previous post was at 10:47 PM ----------

also my cpu load is alway going 90 to 100 percent even tho im not using any app did not also do cpu adjustments . it drains my battery fast
[LG V20 Guides, News, & Discussion] askermk2000:
[MENTION=6984210]emdroidle[/MENTION]

Your donation button doesn't work:
[LG V20 Guides, News, & Discussion] zero_virus0:
I'm encountering the "busy" error message "Failed mounting system for kmod saving: Device or resource busy", then "kdzwriter: Failed while reading kernel modules" and `kdzwriter` wouldn't proceed using -a argument.

What should be done to proceed?

Updating from "H990ds10c_00_OPEN_TW_DS_OP_1214.kdz" to "H99010f_00_OPEN_SG_DS_OP_0630.kdz" (Singapore).

Though I also tried taiwan "H990ds10f_00_OPEN_TW_DS_OP_0622.kdz" but still failed same error.

Help would be appreciated.

Nevermind, I've figured out the problem. It was the twrp mouting issue, so I just updated my twrp using phoenix twrp.

After using phoenix twrp I was able to proceed with the kdz writer without the error.

Updated from H990ds10c (SG) to H990ds10f (SG), Thanks!
[LG V20 Guides, News, & Discussion] epicuros:
Hi, I have the H990N with root and with twrp-3.0.2-1-h990 and I get the commands wrong.

6numount /system

umount: can't umount /system: Invalid argument

Can someone tell me if I can update to another TWRP? with my device.

Thank you very much
[LG V20 Guides, News, & Discussion] Redline:
Update to the TWRP in the ROM development section that's in the first post of the LineageOS 15.1 thread. Or find the thread by [MENTION=8639605]Phoenix591[/MENTION].
[LG V20 Guides, News, & Discussion] epicuros:
When I enter the commands I get this.

I changed the name of the kdz file for 10h

I have Magisc and H990N

Anyone know a solution to the problem I have?

C:\adb>adb push kdzwriter.gz /

1168 KB/s (14348 bytes in 0.011s)

C:\adb>adb shell

~ # [6ngunzip -c /kdzwriter.gz >/sbin/kdzwriter

~ # [6nchmod 755 /sbin/kdzwriter

~ # [6numount /system

umount: can't umount /system: Invalid argument

~ # [6nln -s /sbin /system/bin

~ # [6nkdzwriter -at /external_sd/10h.kdz

/sbin/sh: kdzwriter: not found

~ # [6nkdzwriter -a /external_sd/10h.kdz

/sbin/sh: kdzwriter: not found

~ # [6n
[LG V20 Guides, News, & Discussion] uxairmalik:
were you able to install up to 10q?

---------- Post added at 06:28 PM ---------- Previous post was at 05:45 PM ----------

did you update from 10b to 10e than 10e to 10o?

did you update to 10q?
[LG V20 Guides, News, & Discussion] epicuros:
Has anyone managed to update with this method being root with Magisc?

Or is it necessary to perform the root with supersu?

Thank you
[LG V20 Guides, News, & Discussion] Redline:
Magisk works fine :)
[LG V20 Guides, News, & Discussion] uxairmalik:
ln -s /sbin /system/bin syntax error at this point
[LG V20 Guides, News, & Discussion] dumpystig:
Can anyone advise me on the best way to install Magisk as I upgrade to H990ds10j_00_OPEN_ESA_DS_OP_0923.kdz.
[LG V20 Guides, News, & Discussion] Redline:
Do the upgrade first. Boot into system to make sure everything is okay. Reboot to recovery, flash Magisk 16.0 zip from its thread, as well as any other things you want like DOTS kernel, xposed, etc. Reboot into system and wait for phone to boot, might take 20 minutes or so. Once in system, install Magisk Manager apk and when you launch it it should detect Magisk 16.0 is installed.
[LG V20 Guides, News, & Discussion] ogie14:
still cant get this to work, i followed [MENTION=8589922]xdav20[/MENTION]'s much simpler instruction but to no avail. i got "sh: kdzwriter: not found" in twrp terminal after entering "ln -s /sbin /system/bin"

btw my internal storage is unmounted in twrp everytime i swipe to confirm is this normal?

please someone help me. thank you

EDIT:

using OP method after entering "adb push kdzwriter.gz /" i got failed to copy.......couldnt create file: read only file system. i am rooted using dirtysanta method and updated the kernel with dots 1.5 and magisk for su.
[LG V20 Guides, News, & Discussion] Phoenix591:
update your twrp.. simplist answer to both of those problems. The one from the dirtysanta thhread/exploit is ancient, and cant mount internal storage if its encrypted (stock is by default), and it already has kdzwriter setup so you just need to use kdzwriter itself (kdzwriter -whatever file.kdz)