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

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.

PX5 Android 10 Xtrons IB90MTVL

Having an issue with hiding the status bar, no option in any of the settings menu or system menu. The system is not rooted so using most apps to enable immersive mode is non-functional, they also have apps that require no root but the keyboard won't work or it only hides the status bar for the home screen and no all the apps also I have no idea how to adb into the head unit. Wanted to see if anyone here had any clue on a fix or have had the dame issues and has a workaround. Thank you in advance.

I have a new PX5 Android 10
PBX80JCCL​Trying to enable developer options, I tap the Build number 7 times and more and it does nothing.
I've tried many things and still nothing.
System is original and not rooted.
I need to see my usb settings and possibly change them.
Can I enable with terminal emulator?
Anyone have any ideas?

james73448 said:
I have a new PX5 Android 10
PBX80JCCL​Trying to enable developer options, I tap the Build number 7 times and more and it does nothing.
I've tried many things and still nothing.
System is original and not rooted.
I need to see my usb settings and possibly change them.
Can I enable with terminal emulator?
Anyone have any ideas?
Click to expand...
Click to collapse
FOUND...... enable by typing ABDON in password for factory settings.

james73448 said:
FOUND...... enable by typing ABDON in password for factory settings.
Click to expand...
Click to collapse
i ended up flashing a custom firmware and gave em root

Junsun v1 Pro problem

Hello
I bought a 2+32 GB 4G+WiFi Radio from Junsun.
I dont have a "settings" icon for the Codes.
I dont have "Car Infotainment" in the Car settings.
Can someone help me?

Robin1896HSV said:
Hello
I bought a 2+32 GB 4G+WiFi Radio from Junsun.
I dont have a "settings" icon for the Codes.
I dont have "Car Infotainment" in the Car settings.
Can someone help me?
Click to expand...
Click to collapse
Hi, I have the same problem. Did you manage to solve it?

mikar said:
Hi, I have the same problem. Did you manage to solve it?
Click to expand...
Click to collapse
This video shows how to enter factory settings
Junsun V1 - Codes
Code description from {Mod edit} Please note: Don't just try a code without to know what happens. E.g. 9191 will lead to the message "device not activated" and you need a file called license.dat. 8888 - restricted settings menu 8878 - full...
forum.xda-developers.com

TorstenH said:
This video shows how to enter factory settings
Junsun V1 - Codes
Code description from {Mod edit} Please note: Don't just try a code without to know what happens. E.g. 9191 will lead to the message "device not activated" and you need a file called license.dat. 8888 - restricted settings menu 8878 - full...
forum.xda-developers.com
Click to expand...
Click to collapse
Thank you for answer.
But my biggest problem is that I don't have the 'car infotaiment' item in the settings menu nor the 'extra settings' item :-(

mikar said:
Thank you for answer.
But my biggest problem is that I don't have the 'car infotaiment' item in the settings menu nor the 'extra settings' item :-(
Click to expand...
Click to collapse
You're sure you have a Junsun V1 Pro?
Install https://m.apkpure.com/de/quickshortcutmaker/com.sika524.android.quickshortcut
and test the activities of MainUI (com.ts.MainUI). You may find the settings menu which allows to enter the code or directly the factory settings without the need to enter a code.

TorstenH said:
You're sure you have a Junsun V1 Pro?
Install https://m.apkpure.com/de/quickshortcutmaker/com.sika524.android.quickshortcut
and test the activities of MainUI (com.ts.MainUI). You may find the settings menu which allows to enter the code or directly the factory settings without the need to enter a code.
Click to expand...
Click to collapse
Thank you for answer.
I have installed this app but I have no idea what it does...
I did a search for 'car infotaiment' and it found nothing. Well, I do not know ...

mikar said:
Thank you for answer.
I have installed this app but I have no idea what it does...
I did a search for 'car infotaiment' and it found nothing. Well, I do not know ...
Click to expand...
Click to collapse
Scroll through the list and try to find MainUI. Expand it, click on the first activity and press "try". Do the same with the other activities. Some activities may be known (e.g. Radio, Bluetooth,...) but one could be what you're looking for.
The description of the activity you're looking for needs not to be "car infotainment" because this is just its label in the settings app.