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immortalneo

Senior Member
Jan 25, 2011
4,425
1,941
Malappuram, Kerala
There are a lot of people joining XDA on a daily basis, and there are a lot of repetitive questions being asked
which clutter up the Development and 'Q & A' threads. Point them here. Feel free to ask or answer questions.

The idea of this thread is to get users to help other users with their problems/questions. People are usually
ridiculed for asking questions that other people deem stupid even though it may be a legitimate question. This
leads to new users being afraid to ask questions!

Only provide well mannered help towards users in this thread. Please do not spoon feed, but rather point in
the direction where that user can find an answer
and educate himself. If you don't want to answer, at least
point out where to find the answer.



Before posting anything, I strongly advise you to read THIS thread.

Then, have a quick look at the names of threads in Post No. 2, you might find what you need right away.

Third. Even if you do get your question answered, please do come back and read threads in Post No. 2
(coming later as soon as we start getting the guides) to educate yourself. You'll be surprised how much time
and frustration it will save you in the future!



No abuse towards noobs tolerated here! That means:
NO TROLLING
NO NAME CALLING
NO RIDICULING
NO FLAMING


ASK ANY QUESTION HERE! No question is stupid or irrelevant in this thread. You will either get an answer or will get pointed in the right direction.


*A Special Thanks to mark manning for his help in creating this thread*


HALL OF FAME

People who contributed most to this thread and helped countless number of people with their
problems/questions. In no particular order.

Bruce Wayne
post-mortem
SilentStrider
Ghostfreak NB
mayank9856
sgs22012
Zatta
ADDICT.ANK



These people also have the right to use the banner below:
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Last edited:

xunholyx

Recognized Contributor
Dec 3, 2012
7,656
5,220
Vancouver
Google Pixel 2 XL
Google Pixel 5
I like to specify my question:
Is a googleaccount REQUIRED to recieve the project mainline updates, aka google play-systemupdates?
Are you not able to check for updates if no googleaccount is connected on a phone past android 10?

I hope a experienced user can give a definitive yes or no to this specifc question.

Mainline comes from the Play Store. And you need to sign into the Play Store to get updates from it. So no, you almost certainly won't get Mainline updates from the Play Store.
I say almost certainly because this is something I've never seen asked or talked about anywhere. But it makes sense to me (obvious even) that since the updates come from the Play Store, you would have to be signed into that to get them.
 
Did anyone know KingRoot has its own app store? None of it is in english. Used an activity launcher to get into it. Whatever it is, KingRoot is available in that store. Launching it also activated another permission inside the app, REQUEST_INSTALL_PACKAGES and INSTALL_PACKAGES. Attached a screen shot.

Also have been reading logs while using kingroot. Today I saw something new. Something about trust tonic and TEE. Looked like it was trying to get into the keystore and trying to get key codes of some sort. Sorry no screenshot of that but I will get one the next time I see it.

Sent from my LGE LM-K500 using XDA Labs
 

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DB126

Senior Member
Oct 15, 2013
15,263
10,043
Did anyone know KingRoot has its own app store? None of it is in english. Used an activity launcher to get into it. Whatever it is, KingRoot is available in that store. Launching it also activated another permission inside the app, REQUEST_INSTALL_PACKAGES and INSTALL_PACKAGES. Attached a screen shot.

Also have been reading logs while using kingroot. Today I saw something new. Something about trust tonic and TEE. Looked like it was trying to get into the keystore and trying to get key codes of some sort. Sorry no screenshot of that but I will get one the next time I see it.
SMFH - why in the world would anyone trust an app store published by this shady entity. Red lights everywhere. Step right in ....
 
SMFH - why in the world would anyone trust an app store published by this shady entity. Red lights everywhere. Step right in ....

My thoughts exactly. I just found it a bit odd and a little bit bizarre period either way something about it isn't sitting right with me. I'll have to do a little more research just for my own ****s and giggles and see if I can figure out exactly what it is and where exactly it's based. Well at least we know where it's source is.the one thing that I found weird was the only English I could find was the search I did for "root". It was the only word in English.

Sent from my LGE LM-K500 using XDA Labs
 

kos25k

Senior Member
Nov 15, 2012
3,095
428
Hello.Please help me.I managed to r.i.p my kingston MicroSD card by inserting/rejecting it to many times to flash a rom to another phone,without pressing each time the option to safe remove MicroSD.The card has many precious photos and videos from last 5 years of my life.I tryied everything and nothing works.I can't even format it.Some programs like easeus just recognise the used space (26GB) but not option to do anything.Like partition is damaged.Any solution or some special software please?
 

SubwayChamp

Senior Member
Aug 6, 2016
2,774
1
1,263
Oct 14, 2020
7
0
Greetings....New user....I've been searching for a way to unlock the bootloader on my at&t note 4 since I've learned that......I found this link on a XDA thread https://forum.xda-developers.com/no...e-4-verizon-bootloader-unlock-t3358913/page86 and was following it but my phone won't root using kingroot....can the info in this link help me unlock the bootloader? And if yes how do I root my phone to complete the other steps? I'm grateful for any and every help I get.... thanks in advance.

Sent from my [device_name] using XDA-Developers Legacy app
 

Droidriven

Senior Member
Jan 27, 2014
14,757
5,142
NC
Verizon Samsung Galaxy S III
HTC Thunderbolt
Greetings....New user....I've been searching for a way to unlock the bootloader on my at&t note 4 since I've learned that......I found this link on a XDA thread https://forum.xda-developers.com/no...e-4-verizon-bootloader-unlock-t3358913/page86 and was following it but my phone won't root using kingroot....can the info in this link help me unlock the bootloader? And if yes how do I root my phone to complete the other steps? I'm grateful for any and every help I get.... thanks in advance.

Sent from my [device_name] using XDA-Developers Legacy app
There may be a CF-autoroot file for your specific model number that can be flashed via Odin to root your device.

Do a Google search for:

"CF-autoroot for (your specific model number)"

Sent from my SM-S767VL using Tapatalk
 
Last edited:

hackmythinq

Member
Jul 3, 2020
21
0
Diagnose crashing?

Device: Samsung Galaxy J3 Prime (SM-J327W) with expanded capacity battery
OS: Android 8.1.0
Samsung Experience version 9.5

I just got this used for $20 and put the expanded capacity battery in it myself. It came factory reset and I performed all its updates before doing anything else. It's been working great so far except for it crashing when I'm playing one game in particular. It crashes seemingly randomly regardless of what I'm doing. I've tried using the old battery but it still happens.

How do I go about diagnosing the crashes?
 
Last edited:

Droidriven

Senior Member
Jan 27, 2014
14,757
5,142
NC
Verizon Samsung Galaxy S III
HTC Thunderbolt
So I rebooted this LG K51 to recovery and I noticed something changed.

Code:
frst_status is 6

I am pretty sure that said 3 before. How or why would that change?

Sent from my LGE LM-K500 using XDA Labs
If you have factory reset the device a few times, it seems like it might represent "Factory reset status", as in, the number of times it has been reset.

Sent from my SM-S767VL using Tapatalk
 

Alif Ilhan

Member
Aug 22, 2020
6
0
About porting U-Boot and LK to a phone using kernel source

I have a MediaTek based phone for which I have the kernel source released. I don't care if this device is bricked as it is unnecessary for me. I have the LK tree for the chipset and the device customization extras inside the kernel source tree. Yes, the source tree is messed up, but i will try my best to rearrange it and create appropriate makefiles. But what I want is I want to port newer U-Boot or LK to it.(I prefer U-Boot over LK, but any should do it). Can anyone guide me how to port U-Boot or LK using the kernel board files(the kernel uses board file based definitions instead of device tree). Or can anyone tell me how to get the Memory Map of the SoC(kernel sources might help, isn't it?) so that I can create a device tree for this SoC? I looked into the u-boot source layout of some processors piateand saw many files which have register definitions like init.S, lowlevel_init.S based files which I of course can't find in the kernel source tree or LK tree. Can anyone describe t=me these files and how to create one?

I know I might be asking hard/advanced questions,:silly: but I believe in the experts of XDA:fingers-crossed:. And I am telling it again, if this device is bricked, I don't care
 

DiamondJohn

Recognized Contributor
Aug 31, 2013
5,379
5,069
Sydney
I have a MediaTek based phone for which I have the kernel source released. I don't care if this device is bricked as it is unnecessary for me. I have the LK tree for the chipset and the device customization extras inside the kernel source tree. Yes, the source tree is messed up, but i will try my best to rearrange it and create appropriate makefiles. But what I want is I want to port newer U-Boot or LK to it.(I prefer U-Boot over LK, but any should do it). Can anyone guide me how to port U-Boot or LK using the kernel board files(the kernel uses board file based definitions instead of device tree). Or can anyone tell me how to get the Memory Map of the SoC(kernel sources might help, isn't it?) so that I can create a device tree for this SoC? I looked into the u-boot source layout of some processors piateand saw many files which have register definitions like init.S, lowlevel_init.S based files which I of course can't find in the kernel source tree or LK tree. Can anyone describe t=me these files and how to create one?

I know I might be asking hard/advanced questions,:silly: but I believe in the experts of XDA:fingers-crossed:. And I am telling it again, if this device is bricked, I don't care
I would expect you could possibly get more targeted help on the threads:
[GUIDE][COMPLETE] Android ROM Development From Source To End
[REFERENCE] How to compile an Android kernel
 

SubwayChamp

Senior Member
Aug 6, 2016
2,774
1
1,263
Thank you for your reply. Do you happen to know where I can find out if a phone support video output through USB c port?

It would be better if you specify which device you're interested with to have this feature, otherwise who knows it. If the device has some support/thread here you would confirm with some user with same device.
Despite the model from what I know most of devices with USB-C support at least generic HDMI cable, in this case if you have a video player you would get a sort of adapter for HDMI, it's not hard to find it.
 

Top Liked Posts

  • 1
    Hello guys,

    so i recently just got a 2nd hand samsung s20+ (NTT docomo) and it's already sim unlock, and i've been trying to unlock my bootloader but when i try fastboot oem unlock it shows up as and unknown command.
    Anyone know how to fix it or if it's even possible to unlock the bootloader for samsung s20+ japan version?.

    Thanks!
    From What I know, unless a paid service it doesn't but probably the members on here may know more about https://forum.xda-developers.com/t/...root-s20-series-and-upgrade-firmware.4079353/
  • 2
    I do a lot of shell scripting. Recently i was looking into something on my current device, and I couldn't work out how to do it, so hopefully someone here would know.

    The question is basically, for an updated system app, how do you find the original APK location?

    When a system app gets updated (for example by the playstore), it will get installed to /data/app however, before it gets updated, it may be located in /system/app; and would stilll be there. When It is updated, retrieving its location, it will return the /data/app location, but I cant seem to find how to retrieve its "original" system location.

    To find examples, I can use the following to retrive a list of system apps
    Bash:
    cmd package list packages-s;
    To then find its current install location
    Bash:
    cmd package list packages-f;
    and grep out the specific package I am looking for.

    However, if the system package has been updated, it will only give me the /data/app path.

    Is there anyway (without uninstalling the update) to retrieve the original location?
    if anyone else is interested, I think I found the answer.
    dumpsys package $package_id;
    Gives details of the current install and the original package,
    2
    also may want to delete ur serial #. could be used for bad purposes and is not needed except by you.
    did you just quote his SN# :LOL:
    2
    Hey, GCam suits on what basis. Is it by the Android versions or by the processor basis. Im using Lenovo k10 note which is android 9 and SD 710. I like to install GCam 8 or more.
    It's based on both, this app will help you find the appropriate for your device if there’s available https://play.google.com/store/apps/details?id=com.granturismo.gcamator&hl=es_PY&gl=US
    2
    I wish I could help, but I can't here. I had a S2, a GNex, and an S3. When Sammy announced Knox for the S4, I left. I couldn't be happier. Samsung devices are GREAT for the normal consumer. For people who root, they are a hassle. Being able to just boot to bootloader and use fastboot commands is glorious.

    There are Samsung experts (I am far from one at this point in time) on this thread. Hopefully one of them picks up on your post. Best of luck to you.
    Thanks for getting back to me -- and yeah, Samsung is a pain, and always has been. Unfortunately, they also make the only decent graphics tablets for artists (and I refuse to go to Apple), so for tablets I put up with it. But I've never had this much trouble. Grr!

    For phones, I had a T-Mobile S7 given to me, so I couldn't root it even if I wanted to. Next phone will probably be an LG. I've had both Nexus 4 and 5, both rooted and running (then) CyanogenMod, and loved them!

    SOLVED: I cracked it! For those getting the error "recovery: error validating footer. (6)" the problem is Samsung stupid validating feature called VBMETA that they don't really talk about. It's in the VBMETA partition, and apparently the only recovery that will pass verification is the one installed at the factory. I couldn't even get OEM recoveries to pass. They all gave me the same error.

    So the solution is:

    1) Make sure the recovery you're flashing also has an image called "vbmeta.img". If it doesn't, look elsewhere. (I flashed the recovery that came with my rom, so it had the vemeta.img file in the zip.)
    2) Flash both at the same time. Don't know about Odin, but with heimdall, here's the command: heimdall flash --RECOVERY recovery.img --VBMETA vbmeta.img --no-reboot
    3) Hold down PWR and Vol-dwn, until the device resets. Immediately! hold down Vol-Up & Pwr. The screen will blink a couple of times, then recovery will load.

    Boom!
    2
    Thanks for getting back to me -- and yeah, Samsung is a pain, and always has been. Unfortunately, they also make the only decent graphics tablets for artists (and I refuse to go to Apple), so for tablets I put up with it. But I've never had this much trouble. Grr!

    For phones, I had a T-Mobile S7 given to me, so I couldn't root it even if I wanted to. Next phone will probably be an LG. I've had both Nexus 4 and 5, both rooted and running (then) CyanogenMod, and loved them!

    SOLVED: I cracked it! For those getting the error "recovery: error validating footer. (6)" the problem is Samsung stupid validating feature called VBMETA that they don't really talk about. It's in the VBMETA partition, and apparently the only recovery that will pass verification is the one installed at the factory. I couldn't even get OEM recoveries to pass. They all gave me the same error.

    So the solution is:

    1) Make sure the recovery you're flashing also has an image called "vbmeta.img". If it doesn't, look elsewhere. (I flashed the recovery that came with my rom, so it had the vemeta.img file in the zip.)
    2) Flash both at the same time. Don't know about Odin, but with heimdall, here's the command: heimdall flash --RECOVERY recovery.img --VBMETA vbmeta.img --no-reboot
    3) Hold down PWR and Vol-dwn, until the device resets. Immediately! hold down Vol-Up & Pwr. The screen will blink a couple of times, then recovery will load.

    Boom!
    NICE! Thank you for posting the solution.

    As a side note, rooting the Pixel 5 on Android 12 has an issue with vbmeta as well. After an update, you need to flash the vbmeta.img with disabling verification and verity in fastboot, followed with a "-w" to wipe your phone. In future updates if you sideload the OTA you can boot immediately to bootloader and flash vbmeta with disabling verification and verity without a wipe. If you screw up and boot to system first, you'll have to use "-w" and wipe again
  • 378
    There are a lot of people joining XDA on a daily basis, and there are a lot of repetitive questions being asked
    which clutter up the Development and 'Q & A' threads. Point them here. Feel free to ask or answer questions.

    The idea of this thread is to get users to help other users with their problems/questions. People are usually
    ridiculed for asking questions that other people deem stupid even though it may be a legitimate question. This
    leads to new users being afraid to ask questions!

    Only provide well mannered help towards users in this thread. Please do not spoon feed, but rather point in
    the direction where that user can find an answer
    and educate himself. If you don't want to answer, at least
    point out where to find the answer.



    Before posting anything, I strongly advise you to read THIS thread.

    Then, have a quick look at the names of threads in Post No. 2, you might find what you need right away.

    Third. Even if you do get your question answered, please do come back and read threads in Post No. 2
    (coming later as soon as we start getting the guides) to educate yourself. You'll be surprised how much time
    and frustration it will save you in the future!



    No abuse towards noobs tolerated here! That means:
    NO TROLLING
    NO NAME CALLING
    NO RIDICULING
    NO FLAMING


    ASK ANY QUESTION HERE! No question is stupid or irrelevant in this thread. You will either get an answer or will get pointed in the right direction.


    *A Special Thanks to mark manning for his help in creating this thread*


    HALL OF FAME

    People who contributed most to this thread and helped countless number of people with their
    problems/questions. In no particular order.

    Bruce Wayne
    post-mortem
    SilentStrider
    Ghostfreak NB
    mayank9856
    sgs22012
    Zatta
    ADDICT.ANK



    These people also have the right to use the banner below:
    Newbie%20Thread%20Sign.gif


    Just add this code to your signature:
    HTML:
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    110
    Reserved

    Just a few words of advice on keeping this thread clean of unnecessary clutter:

    1. Before posting a question, it is highly recommended to read this thread.

    2. Click the Thanks button on the posts that helped you, instead of posting "Thanks". This helps other members in finding out the best replies that get buried in the thread.

    3. Do not use this thread to increase your post count! The Off-Topic forum is the place for that.

    4. Do a simple search of this thread before asking to see if your question has been asked previously.

    5. If your question has not received an answer after a few hours, please be patient. Someone will answer you shortly. If you do not get an answer in 24 hours, you may BUMP your post. If you still have no answer after a week, do mention me in your post.

    Thank you for your cooperation!
    26
    Good job mate, hopefully lots of members will find this thread very helpful :cool::good:
    11
    ZTE V970 Brick?

    Hi,

    I've been trying to install Bruno's ROM for this phone (cam with all chinese apps). http://forum.xda-developers.com/showthread.php?t=1856578

    but have a big problem. I tried my best to follow the instructions but, really couldn't work out if I was doing things in the right order.. is there an actual step- by step for this procedure? I know I'm a noob and read this read that I am an idiot etc. etc. but I thought if I used to ROM on that page and the software recommended it would be easy.

    Here's what I did:

    Downloaded all the files as told.

    Tried to 'flash a custom recovery' as here http://bm-smartphone-reviews.blogspot.co.uk/2012/05/mt6575-flashing-tutorial.html

    but it did not mention how to use the ZTE custom recovery file http://d-h.st/Vgt

    I'm also not sure at all that the 'MediaTek drivers' were installed properly. The phone never appeared in the Device manager.

    I opened SP flash tool and followed this: http://bm-smartphone-reviews.blogspot.co.uk/2012/05/mt6575-flashing-tutorial.html

    and selected the 'scatter file' from the unzipped Bruno ROM (took a while to realise had to unzip it to get the file!!!)

    I noticed most of the boxes on the scatter file were unchecked but carried on and ignored a warning message about the phone may not be able to boot (the tutorial said to ignore it).

    I had to click 'download' then plug the phone in and eventually I got the red loading bar. This finished... then nothing else.. no purple bar.. nothing.

    So after waiting a few minutes I unplugged the phone.

    It now appears to be a total brick. What did I do wrong? Why no purple bar? Were the scatter items supposed to be unchecked? What was the 'custom recovery' file for? Because the SP flash prog never asked for it.

    Is there any point in trying it again or is the phone dead?

    Thanks for any help..

    Theo