Database Users

[Q] Change hostname nexus 7 android 4.2.2

Hello,
on my android 4.2.2 google nexus 7 i want to change my hostname.
I there an option to do this WITHOUT a wipe ?
Which procedure is the most reliable at the moment ?
Thx

pitchdown said:
Hello,
on my android 4.2.2 google nexus 7 i want to change my hostname.
I there an option to do this WITHOUT a wipe ?
Which procedure is the most reliable at the moment ?
Thx
Click to expand...
Click to collapse
Under Settings/Developer options you can change your device hostname.
If you can't find the Developer options menu, you have to unlock it, go to About Tablet menu and tab on Build Number 7 times.

browy said:
Under Settings/Developer options you can change your device hostname.
If you can't find the Developer options menu, you have to unlock it, go to About Tablet menu and tab on Build Number 7 times.
Click to expand...
Click to collapse
Hi,
i have developer options enabled, but no option "hostname".
What is the problem?
Thx

pitchdown said:
Hi,
i have developer options enabled, but no option "hostname".
What is the problem?
Thx
Click to expand...
Click to collapse
It should be directly under "USB debugging notify"
Sent from my SAMSUNG-SGH-I727 using xda premium

browy said:
Under Settings/Developer options you can change your device hostname.
If you can't find the Developer options menu, you have to unlock it, go to About Tablet menu and tab on Build Number 7 times.
Click to expand...
Click to collapse
rebel1699 said:
It should be directly under "USB debugging notify"
Sent from my SAMSUNG-SGH-I727 using xda premium
Click to expand...
Click to collapse
I don`t have this on my nexus 7.
Menu "Debugging"
- USB Debugging
- Power Menu Bug Reports
- Allow Moch locations
- Select debug app
-Verify apps over USB
Thx

pitchdown said:
I don`t have this on my nexus 7.
Menu "Debugging"
- USB Debugging
- Power Menu Bug Reports
- Allow Moch locations
- Select debug app
-Verify apps over USB
Thx
Click to expand...
Click to collapse
I believe you have to be rooted to do this on the nexus 7 this way, as i am unrooted and it doesnt show in my developer options either. However you can do it using terminal emulator as well but that might also require root. Really should be a stock option, having to root just to change a hostname is a little ridiculous.
Okay just checked
> su
> getprop net.hostname
> setprop net.hostname <new_hostname>
So yea it would require su, unless someone can post a way to do this easily you might be SOL.

hostname gets reset on reboot
hi, I am using that set of commands to change the hostname but I have noted that it's getting reset on reboot. What could be the problem?
bookburner said:
I believe you have to be rooted to do this on the nexus 7 this way, as i am unrooted and it doesnt show in my developer options either. However you can do it using terminal emulator as well but that might also require root. Really should be a stock option, having to root just to change a hostname is a little ridiculous.
Okay just checked
> su
> getprop net.hostname
> setprop net.hostname <new_hostname>
So yea it would require su, unless someone can post a way to do this easily you might be SOL.
Click to expand...
Click to collapse

Does anybody know the codes

Im trying to root my head unit, tocado 4.4.4 cheap on ebay. there are 3 menus that want a code to enter. Developer options, extra settings and user settings. I cant seem to find any info on this.

xxthedevilsownxx said:
Im trying to root my head unit, tocado 4.4.4 cheap on ebay. there are 3 menus that want a code to enter. Developer options, extra settings and user settings. I cant seem to find any info on this.
Click to expand...
Click to collapse
Did you try "126" ?

use 123456 for extra settings. Still trying to figure out the rest. Please share if you find any other codes!

developer options
Developer options app allows you into them options, but now usb debugging requires a code also

smi12s2 said:
use 123456 for extra settings. Still trying to figure out the rest. Please share if you find any other codes!
Click to expand...
Click to collapse
7890 will allow you into user settings and developer options, but still looking for the usb debugging code

xxthedevilsownxx said:
Im trying to root my head unit, tocado 4.4.4 cheap on ebay. there are 3 menus that want a code to enter. Developer options, extra settings and user settings. I cant seem to find any info on this.
Click to expand...
Click to collapse
the codes
123456 for extra settings
7890 for developer options, user settings, factory reset.
[email protected] to unlock usb debugging
king root to root the head unit.

try 8888

Toca do th8820
Hello I also have a Tocado head unit model th8820 with wince 6.0 is there any way to upgrade th is or at least change the ui BTW I also have the factory recovery files from suplyer in case anything goes south ty in advance

xxthedevilsownxx said:
the codes
123456 for extra settings
7890 for developer options, user settings, factory reset.
[email protected] to unlock usb debugging
king root to root the head unit.
Click to expand...
Click to collapse
Where do I get king root? Is that the same as kingoroot? So many of these sites look sketchy.

www.kingroot.net
Sent from my XT1254 using XDA-Developers mobile app

muhmak said:
try 8888
Click to expand...
Click to collapse
Also 5678 code to change boot logo from settings.

hi,
anyone know the code to allow installation from unknown sources in security settings?
thanks
Sent from my HTC 10 using XDA-Developers mobile app

anyone?

I've listed them all on page one
Sent from my XT1254 using XDA-Developers mobile app

xxthedevilsownxx said:
I've listed them all on page one
Sent from my XT1254 using XDA-Developers mobile app
Click to expand...
Click to collapse
ThAnks, but there is no code for installing unknown apk's
Sent from my HTC 10 using XDA-Developers mobile app

If there is no option in settings, try downloading apk installer in play store. Also if you tap the build section under about device 7 times it will open developer options, may be the option in there
Sent from my XT1254 using XDA-Developers mobile app

xxthedevilsownxx said:
If there is no option in settings, try downloading apk installer in play store. Also if you tap the build section under about device 7 times it will open developer options, may be the option in there
Sent from my XT1254 using XDA-Developers mobile app
Click to expand...
Click to collapse
there is an option in settings, it just asks for a code in order to allow installation.
Sent from my HTC 10 using XDA-Developers mobile app

Yel
xxthedevilsownxx said:
Im trying to root my head unit, tocado 4.4.4 cheap on ebay. there are 3 menus that want a code to enter. Developer options, extra settings and user settings. I cant seem to find any info on this.
Click to expand...
Click to collapse
D Opps : [email protected]
123456 and 7890 try these.

MCU Codes
These codes can be entered when accessing the Factory Settings menu item
• m123456 - opens Factory Settings in "super" mode -- makes another option visible; Launcher type (not sure what they mean though)
• adbon - seems to enable adb on the usb port. Might enable it for all usb ports (haven't tested it yet)
• *#hct#root# - enables persistent root adb on usb port(s) (might be an easy way to root roms, will have to do some testing)
• adboff - disables adb on usb port(s)
• keject - simulates the eject button for the DVD drive
• kpower - simulates the power button
• hcttouch - displays information about the touchscreen/calibration?
• hctbtup - some sort of bluetooth update mechanism?
• hctbtte0-9,0-9,0-9 - some sort of bluetooth testing code -- after the hctbtte there should be 3 digits, ranging from 0-9. Haven't looked into their meaning.
I hope this'd help
---------- Post added at 06:05 PM ---------- Previous post was at 05:46 PM ----------
MCU Codes
These codes can be entered when accessing the Factory Settings menu item
• m123456 - opens Factory Settings in "super" mode -- makes another option visible; Launcher type (not sure what they mean though)
• adbon - seems to enable adb on the usb port. Might enable it for all usb ports (haven't tested it yet)
• *#hct#root# - enables persistent root adb on usb port(s) (might be an easy way to root roms, will have to do some testing)
• adboff - disables adb on usb port(s)
• keject - simulates the eject button for the DVD drive
• kpower - simulates the power button
• hcttouch - displays information about the touchscreen/calibration?
• hctbtup - some sort of bluetooth update mechanism?
• hctbtte0-9,0-9,0-9 - some sort of bluetooth testing code -- after the hctbtte there should be 3 digits, ranging from 0-9. Haven't looked into their meaning

code
xxthedevilsownxx said:
Developer options app allows you into them options, but now usb debugging requires a code also
Click to expand...
Click to collapse
hi, is it possible u could share the code?
have the same problem at the moment..
with activation, it needs a code..
would be very kind of you
i have the 123456 and 7890
works fine..
regards,
Dirk

Android head unit - MTCD KD - Color inversion - impossible to revert

Hi dear all,
I just recieved a new android car 2din head unit, it's a MTCD version with the last firmware version 5.1.1 android+KD+04.05.2016 and I have an issue with the display.
I have an inverted colors on the display.
No way to return to real colors.
I have wiped all users settings in recovery mode.
I have tried via adb to set pm clean com.android.systemui with no success.
Can you please help me ?
Thanks
Artius

The only thing that comes to my mind is this :
Have you checked the "developer options"?. There is a option witch does invert colors. If it is not switched on you might just turn it on and see if solves your issue.

Thank you Marmalux.
I will try your solution this evening
Do you know how to activate "developer options" on this android 5.1.1 MTCD unit ?
Because when I use 126 password in the advanced option I dont have any item with developper options.
Thanks in advance
Artius

Developer options are android specific options, and is not the "factory setings" menu. In main setings menu at the end you should find the developer options.
Regarding the password for factory settings you can also try "m12345" or "m123456" or "587" (this one i'm not sure, but it is definitely begining eith 5, you can find it in the wiki of xda)

App changer, home button, quick settings, lock screen and much more doesn't work

I can't open the quick settings menu from the notification center and can't really do much. Only interact with already installed apps. I can't hange the user, I can't enable developer options I can't save the files via USB and neither does adb work.
I never worked with a Motorola, do you have any idea what I could try?
___​
Android 6.0.1 // Build MPDS24.107-52-5
System version 24.201.5.lux_reteu.reteu.en.EU.reteu
(not rooted)

Polyparadox said:
I can't open the quick settings menu from the notification center and can't really do much. Only interact with already installed apps. I can't hange the user, I can't enable developer options I can't save the files via USB and neither does adb work.
I never worked with a Motorola, do you have any idea what I could try?
___​
Android 6.0.1 // Build MPDS24.107-52-5
System version 24.201.5.lux_reteu.reteu.en.EU.reteu
(not rooted)
Click to expand...
Click to collapse
If it happened all of a sudden after OTA update, check out this answer:
https://forum.xda-developers.com/showpost.php?p=70320663&postcount=2

[PX6] [STM32] [ROM] in need

Greetings!
Browsing the forum I have figured that currently(January 2020) no custom ROM is available for PX6 which came with STM32 MCU.
As probably many owner have noticed the stock ROM has many flaw and severe deficiency/complete lack of customization.
As far as I know, sadly no Hal9k ROM development is planned for STM32 model currently. :crying:
I think many head unit is already or being shipped with STM32 MCU and I have a feeling that many hobby hacker (who can only install a ROM) including myself would be grateful having a sophisticated ROM for this model too.
I would like to ask owners as well to use this thread and express if they are also in need for a custom ROM.
Thank you! :highfive:

I need rom
OS Version: KC1E0101-PA1-1.1.4.3.1-BLINK161-20191115-701F
MCU: STM32-20190918-11-KC6-37

Hello to all!
After some days owning one of our favorite HU I gathered some info I want to share with yall. :cyclops:
Due to some random system reboot during normal operation I have also conducted investigation on heat dissipation. Simply put, these HUs has bad heat dissipation from factory.
The system during an AnTuTu CPU stress test hit 80 C which is not healthy for the unit and it can cause thermal shutdown as thermal throttling is not sufficiently implemented.
I added a medium sized heat sink and that reduced peak temperature to around 50 C.
To make the system cool on hot summer days I added also a 30x30x10 fan. With fan the peak reduced to around 40 C.
After the modification my HU is running stable, I was not able to make it reboot so far no matter how hard I use it.
P.S.: If any1 has info on the 4-pin connector next to the big white connector please let me know!
Update: added images with cooling added.
.

Hi everyone!
This post is for those who wants to know their device as much as possible or has issue with bluetooth / display or just curious or wants to update OS in future.
There is a hidden "Factory Settings" to access it you need to press: "Kernel Version" > "OS Version" > "Kernel V." > "OS V." > "Kernel V." > "OS V.".
Some settings in there are very useful actually.
For those who has fluctuating grey color at certain brightness I recommend "Factory Settings" > "Other" > "Panel learning" > "Vcom regulate value".
For those who want to make colors of the display simply nicer I recommend "Factory Settings" > "Other" > "Display Color Adjust Settings".
:good:

thanx for the information. do you possibly have the mcu file for this device. I need to fix mine , I flashed a wrong mcu file and now the screen is twisted and mirrored. Thanx in advance

simbac said:
thanx for the information. do you possibly have the mcu file for this device. I need to fix mine , I flashed a wrong mcu file and now the screen is twisted and mirrored. Thanx in advance
Click to expand...
Click to collapse
Hi Simbac,
before you flash any file, if your display is still responsive try "Factory Settings" > "Other" > "Touch learning" > "Step1: Screen learning".
If it does not help, you can find my config files:
One exported from main factory setting menu (android_config1579383003862..1) original file extension is ".1" but I was only able to upload to XDA as .img so please rename it if you want to use it
One from panel learning menu (BHDPanelConfig.img)
And one from touch learning menu (ts_config.xml)
After copy them to a FAT32 formatted USB drive you plug into your HU the updater app should launch automatically. My files are for "CONFIG" and "PNL" (panel) and "TS" (touch).
:good:

OperatorB said:
Hi Simbac,
before you flash any file, if your display is still responsive try "Factory Settings" > "Other" > "Touch learning" > "Step1: Screen learning".
If it does not help, you can find my config files:
One exported from main factory setting menu (android_config1579383003862..1) original file extension is ".1" but I was only able to upload to XDA as .img so please rename it if you want to use it
One from panel learning menu (BHDPanelConfig.img)
And one from touch learning menu (ts_config.xml)
After copy them to a FAT32 formatted USB drive you plug into your HU the updater app should launch automatically. My files are for "CONFIG" and "PNL" (panel) and "TS" (touch).
:good:
Click to expand...
Click to collapse
thanx a million will try and give you an update

@OperatorB is it posible to install the rom by your way? My head totally boot stuck and I am trying to find some luck by re-install the rom.

simbac said:
thanx a million will try and give you an update
Click to expand...
Click to collapse
I hope you have success with them. By the way Simbac, I saw your old post you had a blue screen only on the HU. How did you get pass that?

mrVuHoa said:
@OperatorB is it posible to install the rom by your way? My head totally boot stuck and I am trying to find some luck by re-install the rom.
Click to expand...
Click to collapse
If your device does not get pass the bootloader so cannot get into the Android OS then you cannot use this method to update ROM. Did you enable ADB via TCP?

OperatorB said:
If your device does not get pass the bootloader so cannot get into the Android OS then you cannot use this method to update ROM. Did you enable ADB via TCP?
Click to expand...
Click to collapse
You can find my video at youtube.com/watch?v=sDxmmYL-nIg
It can boot to android, because I can saw that my phone can connect to the HU's bluetooth. I already checked the wifi but it seems that HU don't connect to access point.

have you tried to enter recovery following this procedure? (remove spaces) https: //drive.google.com /open?id= 16CfginUDta01NfMxt7B3a8g0CyniUnit

mrVuHoa said:
You can find my video at youtube.com/watch?v=sDxmmYL-nIg
It can boot to android, because I can saw that my phone can connect to the HU's bluetooth. I already checked the wifi but it seems that HU don't connect to access point.
Click to expand...
Click to collapse
You can try an "Erase with reset button". Note that all of your data and apps will be lost if it completes erasing and android should be in factory state after this erase.
Check my video here: link
Timing of presses is not exactly known neither the number of presses. I was able to start erase with most success by pressing 1+4 times. You know if you did right if white screen appears for a short time (at least on my STM32 HU).
Good luck!
:good:

mrspazzaneve said:
have you tried to enter recovery following this procedure? (remove spaces) https: //drive.google.com /open?id= 16CfginUDta01NfMxt7B3a8g0CyniUnit
Click to expand...
Click to collapse
Let me ask something.
If you enter recovery menu by reset button you can also navigate and select options there with the same button.
If you enter recovery menu by typing to terminal: "reboot recovery" than can you use the button again for navigation and select?

OperatorB said:
Hi everyone!
This post is for those who wants to know their device as much as possible or has issue with bluetooth / display or just curious or wants to update OS in future.
There is a hidden "Factory Settings" to access it you need to press: "Kernel Version" > "OS Version" > "Kernel V." > "OS V." > "Kernel V." > "OS V.".
Some settings in there are very useful actually.
For those who has fluctuating grey color at certain brightness I recommend "Factory Settings" > "Other" > "Panel learning" > "Vcom regulate value".
For those who want to make colors of the display simply nicer I recommend "Factory Settings" > "Other" > "Display Color Adjust Settings".
:good:
Click to expand...
Click to collapse
I see from your screenshot that you have the LESS ugly version of the UI than my recent unit. The radio app on mine is especially difficult to use. I'm been looking for the radio apk from a unit like yours. I was able to extract mine (it was called com.hzbhd.radio.apk) using "APK Extractor" from the Play Store. If you would post your radio APK I'd love to see if it would run on mine. Thanks!

OperatorB said:
Let me ask something.
If you enter recovery menu by reset button you can also navigate and select options there with the same button.
If you enter recovery menu by typing to terminal: "reboot recovery" than can you use the button again for navigation and select?
Click to expand...
Click to collapse
No, using "reboot recovery" you have to use an external usb keyboard to navigate and select and the selectable option is different (example ther's not USB option, only SD) , but I don't know why

mrspazzaneve said:
No, using "reboot recovery" you have to use an external usb keyboard to navigate and select and the selectable option is different (example ther's not USB option, only SD) , but I don't know why
Click to expand...
Click to collapse
All right, it means that there is still hope to enter somehow recovery mode with reset button on my type of HU. It just matter of time to find the good sequence
Thank you!
P.S.: Where did you see having an "..USB.." option in recovery menu, can you share link?

TouchMeBell said:
I see from your screenshot that you have the LESS ugly version of the UI than my recent unit. The radio app on mine is especially difficult to use. I'm been looking for the radio apk from a unit like yours. I was able to extract mine (it was called com.hzbhd.radio.apk) using "APK Extractor" from the Play Store. If you would post your radio APK I'd love to see if it would run on mine. Thanks!
Click to expand...
Click to collapse
I attached the extracted radio apk.
Please share a picture about your OS and MCU versions and tell us if the new radio works on your device.
:fingers-crossed:

Can somebody extract for me the car settings(vehicle/canbus) APK. Thanks

OperatorB said:
I attached the extracted radio apk.
Please share a picture about your OS and MCU versions and tell us if the new radio works on your device.
:fingers-crossed:
Click to expand...
Click to collapse
Thanks. I'll try to do it tonight when I get home from work.