[Investigation] Android Security - possibility to (re)lock bootloader / harden phone - Android Software/Hacking General [Developers Only]

Hello girls and guys,
I am looking for a method to safely sign my own custom ROM the same way the "stock" system/recovery gets signed, so that I still have the feature to relock the bootloader after installing a recovery that only accepts zips signed with my private key.
What I have found so far are the following resources:
Android Specific:
https://source.android.com/devices/tech/ota/sign_builds.html
https://mjg59.dreamwidth.org/31765.html
http://www.cs.cuhk.hk/~cslui/PUBLICATION/ASIACCS2014DROIDRAY.pdf
http://wiki.rootzwiki.com/Signing
Device/Bootloader specific:
https://developer.qualcomm.com/download/db410c/little-kernel-boot-loader-overview.pdf
https://www.codeaurora.org/blogs/little-kernel-based-android-bootloader
https://github.com/littlekernel/lk
https://www.w3.org/2012/webcrypto/webcrypto-next-workshop/papers/webcrypto2014_submission_25.pdf
https://sturmflut.github.io/mediatek/2015/07/04/mediatek-details-partitions-and-preloader/
https://sturmflut.github.io/mediatek/2015/07/05/mediatek-details-little-kernel/
https://groups.google.com/forum/embed/#!topic/android-kernel/cafLHDWTOiE (some explanation)
http://newandroidbook.com/Articles/aboot.html http://newandroidbook.com/index.php (book about it)
http://forum.xda-developers.com/android/help/phones-secure-boot-locked-bootloader-t3276098
http://forum.xda-developers.com/oneplus-one/help/oneplus-one-lk-little-kernel-bootloader-t3269111
Goal of my reasearches is to have a locked down experience just like when I have bought a device.
I currently have a Oneplus 2 and a Nexus 5 for research and testing purposes.
Excuse me if I have not any technical expertise in this area in future posts,
all I want is to collect documentation, understand how the concept works
and maybe build my own ecosystem where I compile or only sign things I want to have on my phone and possible third partys can't modify anything.

Not even one person that knows a person who knows a person?
I'm happy for every hint!

Jann F said:
Not even one person that knows a person who knows a person?
I'm happy for every hint!
Click to expand...
Click to collapse
I'm on a oneplus 2 with a locked bootloader. Custom ROM

Related

[Q] Questions about hacking

Hi guys
I am writing a paper and I would like to have your point of view
1) Is it dangerous to change the rom (security for the user) ?
2) Is a rom could be infected or made with bad functions ?
3) An operator can detect a non official rom ?
Thank you very much for yours future answers.
Ad.1 Theoretically yes. But as long as you get a custom Rom from a "SAFE" place (like Xda), with a big community, it should be quite safe, as sooner or later any issues would most likely be picked up by someone.
The other problem could be a fact you have to root the device to flash a custom rom.
Ad. 2 Yes it is possible, and it could happen, but I don't think anyone ever come across such an issue.
Ad. 3 Probably not, but I'm not entirely sure about that.
Sent from my Desire HD
pierrebro said:
Hi guys
I am writing a paper and I would like to have your point of view
1) Is it dangerous to change the rom (security for the user) ?
2) Is a rom could be infected or made with bad functions ?
3) An operator can detect a non official rom ?
Thank you very much for yours future answers.
Click to expand...
Click to collapse
1) It's just what you call security. If you do something wrong during the flashing process, like flashing the wrong ROM for example, it will surely brick your phone. If you're talking about virus issues and stuff like that, I'll procide the same answer as the person above me. Theoretically yes, but the chances are really small.
2) Yep. Particularly if you flash someone else's backup, you could flash a troian. Please mention I said 'could', because again, the chances are really small.
3) Could be, could be not. Not completely sure about that one. I think they can't, but I'm not completely sure.
Point 1 and 2 have about the same answer: Improbable, but it is possible.
Ok bro
First of all thank you very much for your answer. It s usefull
If I understand right, in future, we can imagine that a "bad" hacker team produce a specific ROM with in apparence very interesting functions but in back, a function to create a zombie park. Right ?
The question I think, it s how is possible for an operator to do security on Android ?
I read a lot and I found no sources regarding how an operator can build his security with Android phones. I mean on network. I can imagine than for him, it will be interesting to block some specific appli or roms but i dont know if it s possible.
Thank you very much.
To fight modified roms, perhaps manufacturers can secure their bootloader ?
I ask this because I think only manufacturers can fight modified roms. Right ??

[Q] A genious needs help for unlock - great chance!

Hi all,
I've been quite happy with my TF300, but after RMA (like many, many, MANY before me), there's no way to unlock the bootloader. I know there have been numerous threads here on XDA, and they all end in "It can't be done, unless you have some sort of genious working for you". So: I went out and got myself a genious!
Dan J. Rosenberg, The one who unlocked the Moto bootloader, made -through motochopper- root available for our RMA'd TF300's, the genious himself. I've been in touch with him through e-mail, and basically he's more than willing to have a look at our bootloader. For him it's just another hobby
...But... I'm not a dev in any sense. I'm just a user who wants freedom when it comes to his purchase. And now the e-mails get technical. So I need your help, my dearest XDA'ers!
Here's the e-mail I received from him:
"I'd be happy to take a look at your bootloader, but I can't make any
promises, since it's entirely possible Asus has implemented the unlock
process in a cryptographically strong way that is impossible to bypass.
Would you be able to pull the boot partition from your device and send
it to me? Let me know if you need instructions on how to do this."
Is there anyone out here able to help me out??!
I guess if there is ANYONE out there who can do this, Dan is the man. Let's do this!
If your tablet went through RMA you can't unlock it? Seriously?
Sphinix said:
"I'd be happy to take a look at your bootloader, but I can't make any
promises, since it's entirely possible Asus has implemented the unlock
process in a cryptographically strong way that is impossible to bypass.
Would you be able to pull the boot partition from your device and send
it to me? Let me know if you need instructions on how to do this."
Click to expand...
Click to collapse
Our bootloaders encrypted which is probably what he means.
Also the bootloader has changed from version 4.0 to 4.1 to 4.2!
It would be interesting to find out if you can do a brute force attack to try and work out the keys.

[Root]I want to learn how to Root Smartphone without 3rd Party app?

Hello, everyone and the moderators!
I just joined.
I had happily used Android in Datawind Tablet for 6 months, two years back, when it developed a snag. I received a replacement. It had third-party apk download site of Datawind, not the Google's Playstore. I was displeased by this limiting option. So I returned back the device and got back my full payment.
I informed Google about this but Google said that since Android development is under Apache license, not GNU license, people could do as they pleased.
A few months back I was interested by the Whatsapp app. It can't run on Android-x86 on PCs. So I planned to buy a cheap smartphone to test it. I bought a Karbonn Titanium 3Dplex Lite.
Everything alright upto this! I was happily using Whatsapp, when my notice was brought upon a third party app called Tap-n-Buy. I could not uninstall it.
I have been an exclusive Debian Linux user for the last nine years. So I thought I could su and remove it.
But I found that not only su is not possible ordinarily in Android, but in the android-porting forums it appears to be a taboo word.
Very well! I researched and found the site techaddictted.wordpress.com/2016/06/01/9-apk-to-root-android-phones-without-pccomputer
I downloaded a few rooting apk files from their parent sites.
In the meanwhile I was helped by Androidcentral, link, androidcentral.com/root and digitaltrends.com/mobile/how-to-root-android, in the preliminary research. I was also helped by the android-x86 forum.
I continued to post a few queries in "android-x86 and ancroid-porting" but am not receiving any replies:
Topics:
(1) Customise Pre-installed Android in personal Smartphones?
(2) How to copy the entire Android OS installed on smartphone to PC running Linux?
(3) Why Rooting Android on Smartphones is a taboo subject?
(4) How to install Android ISO on Smartphone from Linux Systems?
The process being: downloading the installed OS from my Smartphone to my lap-/desk- top, su and remove problematic apps, and put it back on the smartphone.
But needless to say, one of my posts has been refused. The rest have yet not been approved for general viewing.
With my threads to android-porting I came to have an intuition about some issues:
(1) It appears that Android rooting is a taboo subject in Android google usergroups.
(2) There is no direct super user level in android to be root'ed but only 3rd party apps.
I downloaded some of the apk files from the links provided by techaddictted.wordpress.com/2016/06/01/9-apk-to-root-android-phones-without-pccomputer . I checked those apk files using online virus malware scanner and found all of them problematic.
I continued to search, and from MakeUseOf - Technology, Simplified, (i.e., makeuseof.com) I was led here.
Now my interest is very detailed:
Ultimately, I wish to download the Entire Installation on the Smartphone of the custom Android by my mobile developer, tweak the files, remove a couple of problematic apps and then reinstall the tweaked files back to the smartphone again.
I know that in Linux I could remove root password using booting from a different liveCD, use some tricks like chroot and then remove and log on as root with a new password.
As a Linux aware person I can understand that may be Android is trying to suppress information about rooting a device to keep the proprietary apps running. They have their limitations.
But on the contrary, Google Android itself warns me of the third party software, which is indicates as malicious. Here is the link: drive.google.com/open?id=10N1HtycG87_5LW59-1GGKI32b1ucN0bC
It was these Tap-n-Buy warnings that actually aroused my interest in rooting my device, to be a superuser and remove this software. Otherwise, this app doesn't appear to be removable.
Could I be helped?
We will take one baby step at a time. First know whether it is at all possible to be a superuser without a third-party Superuser app.
And continue from there to the next baby step.
Root on Android is a security exploit. It is not taboo here.
It might be that your device can't be rooted (not all can be) mainly if it's a no name cheap devices.
Yes you need third party apps as root on Android requires a kernel change.
As for pulling the OS off a device. You are out of luck on that. As the OS is packaged differently when it is zipped and then it is decompressed when flashed.
Your best bet would be to see if your bootloader can be unlocked. If it can then you will need to find the kernel source and build aosp for the device.
Thank you for responding to my queries
Thank you Sir, for responding to my post and replying to my queries. I have to admit that I did not expect a reply so soon.
I thought I did not write clearly enough to make it clearer, and I apologise for the ambiguity. I would try to clarify certain aspects of my post based on your observations.
zelendel said:
... It is not taboo here ...
Click to expand...
Click to collapse
I was not referring to this forum, Sir. I was talking about android-porting.
zelendel said:
... if it's a no name cheap devices ...
Click to expand...
Click to collapse
Sir, it is a branded product from a fair Indian company ["karbonnmobiles dot com"] with an entry in the Wikipedia [english wikipedia.org/wiki/Karbonn_Mobiles].
zelendel said:
... Yes you need third party apps as root on Android requires a kernel change ...
Click to expand...
Click to collapse
But all the apk files I checked with virustotal.com had issues. Could you kindly advise on a safe apk, Sir?
zelendel said:
... As for pulling the OS off a device. You are out of luck on that. As the OS is packaged differently when it is zipped and then it is decompressed when flashed ...
Click to expand...
Click to collapse
Sir, I have already decompressed android-x86 ISO and studied it. So I think the same feat could be repeated on the smartphone's OS. Please inform about an HowTo, Sir.
zelendel said:
... to see if your bootloader can be unlocked. If it can then you will need to find the kernel source and build aosp for the device ...
Click to expand...
Click to collapse
I would require links on HowTo, Sir. Could I be helped in this regard please?
I thank you once again for replying so promptly.
rajibando said:
Thank you Sir, for responding to my post and replying to my queries. I have to admit that I did not expect a reply so soon.
I thought I did not write clearly enough to make it clearer, and I apologise for the ambiguity. I would try to clarify certain aspects of my post based on your observations.
I was not referring to this forum, Sir. I was talking about android-porting.
Sir, it is a branded product from a fair Indian company ["karbonnmobiles dot com"] with an entry in the Wikipedia [english wikipedia.org/wiki/Karbonn_Mobiles].
But all the apk files I checked with virustotal.com had issues. Could you kindly advise on a safe apk, Sir?
Sir, I have already decompressed android-x86 ISO and studied it. So I think the same feat could be repeated on the smartphone's OS. Please inform about an HowTo, Sir.
I would require links on HowTo, Sir. Could I be helped in this regard please?
I thank you once again for replying so promptly.
Click to expand...
Click to collapse
Oh no. Karbon is not what you think. They like Micromax use rebranded devices from China. Normally cool pads by Chinese name. (I have helped with many India based users with different oems) even helping getting kernel source release for the M1.
Root files will always trip anti virus programs. It's because in a way it is a virus. Root apps use security exploits to get root. Nothing to worry about as long as you are smart about it. Heck you can ask any developer here "what anti virus program they use" and the majority will say none. They are faker then a Chinese knock off. They have even been found to fake false reports on files for their competitors.
If your device has an unlocked bootloader then you can flash magisk which is the best root app.
If you come across an app that doesn't need to be flashed and is just an apk. Run the other way. Those use majority security exploits to get it done but most of them get patched in the monthly updates. So it doesn't always stay. They also tend to add malware to the device.
As for a step by step guide. I can only do what you can. That is to search xda to get the info I need.
I'll do what I can and see what I can find. No promises. Do some research yourself as well. It will help you learn the ins and outs and get you to know the lingo.
Mind you. You will still need an app to control root. Which is encludes with the magisk zip
I will try with your information
Thank you, Sir, for the additional information for my further research and experimentations.
I will try to find flash magisk zip and then use it.
BTW, I would seek this opportunity to request you to advise me about the best Smartphone that has everything accessible, from open bootloader to root permissions for my further experimentations.
Until then, I would seek your permission to be absent from this thread.
Thank you once again, Sir!
My regards
rajibando said:
Thank you, Sir, for the additional information for my further research and experimentations.
I will try to find flash magisk zip and then use it.
BTW, I would seek this opportunity to request you to advise me about the best Smartphone that has everything accessible, from open bootloader to root permissions.
Until then, I would seek your permission to be absent from this thread.
Thank you once again, Sir!
My regards
Click to expand...
Click to collapse
Dude. Relax. I am no longer in the army. No need to call me sir. Lol This is a forum. People reply when they can. We are glad to help in our free time.
Do some research on magisk. Don't just go flashing. But first things first. Find out if you have a bootloader that can be unlocked. If not then you won't be able to go further.
Thanks for replying again so soon!
Thank you, Sir, for replying so quickly once again.
zelendel said:
No need to call me sir.
I addressed you as Sir as a gesture of admiration for your kind support. If you are uncomfortable with it, then I would rather not address you as sir.
Click to expand...
Click to collapse
zelendel said:
Find out if you have a bootloader that can be unlocked.
Click to expand...
Click to collapse
Yes, I have just been researching on this very issue. But it appears to involve installing Android SDK, as per howtogeek dot com/239798/how-to-unlock-your-android-phones-bootloader-the-official-way
Is there another, easier way? A shortcut?
BTW, please refer to my request in the post #5 on a suitable smartphone for experimentation.
rajibando said:
Thank you, Sir, for replying so quickly once again.
Yes, I have just been researching on this very issue. But it appears to involve installing Android SDK, as per howtogeek dot com/239798/how-to-unlock-your-android-phones-bootloader-the-official-way
Is there another, easier way? A shortcut?
BTW, please refer to my request in the post #5 on a suitable smartphone for experimentation.
Click to expand...
Click to collapse
All you really nead from the sdk is the adb files, so you can push commands to your device. There are a few basic adb packages. Here is a good tool. This will work for now to do what you want. If you ever decide to build roms for your devices from source then you will have to have the whole SDK.
While there are many sites one the internet XDA is the only one you will ever need for modding your device. Any question you may have as been asked at least a hundred times in these forums. Use the XDA search or the XDA search plug in for your browser to hel find the info you need.
Many devices have unlockable bootloaders. One Plus has the currant Dev support right now as they are good with 3rd party developers for the most part. Depending on the device unlocking the bootloader has back draws (sony with DRM keys and such) lessened security (no matter what any one tells you). Just see which devices XDA portal team is talking about. They are normally good dev devices. Like I think Honor is working with XDA to be as open as possible.
Thanks for replying again so soon!
Thank you once again.
Regarding your following sentence:
zelendel said:
... Any question you may have as been asked at least a hundred times in these forums ...
Click to expand...
Click to collapse
I indeed did both full and advanced search in this very site for my OP thread title.
Needless to say, I didn't find any. I couldn't. I always ask incisive questions, otherwise, I don't.
Once in flow, I asked you about unlocking the bootloader. As I asked, I began my search as well
So Honor and One Plus? Could you please inform about the specific models? I will then talk to Amazon India for one of the two, and also about a completely open Smartphone, without locked bootloader, locked root, locked third-party app (I will do them myself, if required) with Android pre-installed, for experimentation.
Thanks a lot!
I will take some time to be familiar with xda, but I will eventually, if the quality that you vouch for is really there.
I admire all good things and am ready to pay more than money for them.
Regards
rajibando said:
Thank you once again.
Regarding your following sentence:
I indeed did both full and advanced search in this very site for my OP thread title.
Needless to say, I didn't find any. I couldn't. I always ask incisive questions, otherwise, I don't.
Once in flow, I asked you about unlocking the bootloader. As I asked, I began my search as well
So Honor and One Plus? Okay, I will talk to Amazon India for one of the two, and also about a completely open Smartphone, without locked bootloader, locked root, locked third-party app (I will do them myself, if required) with Android pre-installed, for experimentation.
Thanks a lot!
I will take some time to be familiar with xda, but I will eventually, if the quality that you vouch for is really there.
I admire all good things and am ready to pay more than money for them.
Regards
Click to expand...
Click to collapse
Yeah the site search can be a bit bad. Due to the size of it. You will get used to what key words you will need to use. The site has been here for almost 20 years now leading the way in mobile hacking and development. So there is a lot of info. But a lot of it is pre-android as well so don't be deterred.
I had a look at the devices available from Amazon India. Look in out forums at the device threads and compare them. The 5t is the only one I can say for 100% that it will do what you want.
Ah, great!
Thanks for posting a reply so quickly.
zelendel said:
... 5t is the only one I can say for 100% that it will do what you want ...
Click to expand...
Click to collapse
I am so sorry that I was editing the post #9 while you replied.
Okay, One Plus 5T? Shall enquire with Amazon.
[later addition] Yes, checked. But I won't buy it. It has a (redundant for me) very powerful camera and a very powerful HD screen, which I won't require.
The device is expensive chiefly because the powerful camera and the HD screen which I don't need. I simply want to experiment.
So I will go with the best of the original Chinese Brands that flood our markets.buy any one of the smartphones, as advised, 2nd hand. Not the India-nised Chinese Brands re-packaged by Karbonn or Micromax — a priceless information you brought to my notice. I will enquire with our local mobile repairers and software updaters.
I had already written to Amazon in the meanwhile. Though the CS team has replied, they are not very competent. I am presently waiting for the Executive Customer Relations Team to respond.
I will gradually become familiar with this site, for sure, and learn to search optimally.
Thanks once again!

Palm pvg100 questions

I am seeking an app that would make the power button also the volume button. I have come across several apps that make the volume button turn into the power button but none for the power. Also does anyone know where to get a replacement sim card tray for the PVG100 or if a sim tray from another device would work in it. Thanks
Hi guys!
I think I found the source code/bootloader for the PVG100. After a whole lot of digging, I now have this .zip from the founder himself, and it is for the original 2018 firmware, not with any of the updates. I'll attach it below.
I am definitely a novice tinkerer, not a developer. I don't have any of the skills or tools to make a custom ROM, though I very much want one to remove the bloatware and enable hotspot tethering etc. Stormskeeker, could you please post whatever you have managed to find so far, or explain how you have been able to tweak it?
I also have a couple of these that are inoperable for various reasons that I have thoroughly dissected. So if anyone needs to buy any of my spare parts, or wants to just know more about the Palm's guts, then hit me up!
This is SUCH a rad little phone. Biggest complaint by far is battery life, and I would LOVE if someone help me figure out how to power this phone with a bigger battery. I found a Oneplus battery has the same connector, but it won't work when I connect it (unless it's plugged in to a wall adapter)... does this have something to do with the firmware not accepting a different battery? Does Anyone know how I can get around this??
https://sourceforge.net/projects/palmopensource/[/url]
Sim Tray in Gold for my Palm PVG 100
fatetraitor said:
I am seeking an app that would make the power button also the volume button. I have come across several apps that make the volume button turn into the power button but none for the power. Also does anyone know where to get a replacement sim card tray for the PVG100 or if a sim tray from another device would work in it. Thanks
Click to expand...
Click to collapse
Hello A Need Also a New Sim Tray in Gold for my Palm PVG 100 i Contacted PAlm They Said:
Palm Support Team (Palm)
Nov 29, 12:38 PST
Hi Davi
Thanks for contacting us.
Unfortunately, we're not able to provide replacement SIM trays at this time.
If you have any other questions, please let us know.
Thanks,
Palm Support Team
Pleaze Helph someone how they can put a phone in the market with no simple Replace Parts for this Palm Phone
DEXXO said:
Hello A Need Also a New Sim Tray in Gold for my Palm PVG 100 i Contacted PAlm They Said:
Palm Support Team (Palm)
Nov 29, 12:38 PST
Hi Davi
Thanks for contacting us.
Unfortunately, we're not able to provide replacement SIM trays at this time.
If you have any other questions, please let us know.
Thanks,
Palm Support Team
Pleaze Helph someone how they can put a phone in the market with no simple Replace Parts for this Palm Phone
Click to expand...
Click to collapse
There is nothing we can do about your situation, why did you come here to ask about this issue? Don't waste your time here with a question like that.
Sent from my SM-S767VL using Tapatalk
Droidriven said:
There is nothing we can do about your situation, why did you come here to ask about this issue? Don't waste your time here with a question like that.
Sent from my SM-S767VL using Tapatalk
Click to expand...
Click to collapse
Thanks fo For Quick Feedback
the name of this Thread is Palm pvg100 questions
so thats why i asking here + if you Read up im not the first ho ask about the Sim Tray :good:
for me iz not a waste of time iz about to be Real and find Solutions and nothing hiding
The 2nd Question is to find how and best to Flash a Palm PVG 100 or Root it.
sincerly Greets DEXXO
DEXXO said:
Thanks fo For Quick Feedback
the name of this Thread is Palm pvg100 questions
so thats why i asking here + if you Read up im not the first ho ask about the Sim Tray :good:
for me iz not a waste of time iz about to be Real and find Solutions and nothing hiding
The 2nd Question is to find how and best to Flash a Palm PVG 100 or Root it.
sincerly Greets DEXXO
Click to expand...
Click to collapse
Questions about how to root this device are relevant, but you didn't ask about that in your previous post, did you? No, you didnt, you asked an irrelevant question about the SIM tray that has nothing to do with XDA or what we do here.
My point is, this forum is about android software development and Windows mobile software development. Given that fact, questions posted here in this Palm pvg 100 thread should be questions about Palm pvg 100 software. Your question is about your device's manufacturer and their practices concerning the SIM tray issue. That question is irrelevant here at XDA because it has absolutely nothing to do with android, android software development, Windows mobile, Windows mobile development or the software on your Palm pvg 100.
Sure, your question is related to the Palm pvg 100, but that doesn't mean anything.
If this were an automobile repair forum, the question you posted would be like going to an automotive repair forum to ask why Toyota has stopped making a certain part or making that part available to the public. How would the people in the forum know why Toyota is doing that? They, wouldn't, Toyota would. What could the people in that forum actually do about the availability of that part? Absolutely nothing. So why waste your time asking them if they don't know and can't do anything about it? Do you see my point now?
If you want to know if there is a known rooting method for your device, do a Google search for:
"How to root (your model number)"
If that doesn't find anything, there is not a known rooting method for that device. If you find nothing, you'll have to experiment for yourself to find working method.
If searching doesn't find anything specific, you'll have to try the various universal rooting programs on PC or the various android rooting apps, try all of them that you can possibly find.
If the universal rooting programs or apps don't work, you can try finding a copy of your stock firmware, then extract the boot.img from the firmware then use Magisk on PC to patch the boot.img then flash that boot.img on your device then install the Magisk Manager app on your device. But, if your bootloader is locked, you will not be able to flash the patched boot.img.
If you want to know how to flash your device, do a google search for:
"How to flash stock firmware (your model number)"
Or
"Return to stock (your model number)"
That should find guides for flashing your device.
Notice that the Google searches are simple and to the point,
"How to (the thing you're looking for) (your model number)"
It isn't difficult to use Google to find answers, you just have to keep your search terms simple and direct.
Sent from my SM-S767VL using Tapatalk
Droidriven said:
Questions about how to root this device are relevant, but you didn't ask about that in your previous post, did you? No, you didnt, you asked an irrelevant question about the SIM tray that has nothing to do with XDA or what we do here.
My point is, this forum is about android software development and Windows mobile software development. Given that fact, questions posted here in this Palm pvg 100 thread should be questions about Palm pvg 100 software. Your question is about your device's manufacturer and their practices concerning the SIM tray issue. That question is irrelevant here at XDA because it has absolutely nothing to do with android, android software development, Windows mobile, Windows mobile development or the software on your Palm pvg 100.
Sure, your question is related to the Palm pvg 100, but that doesn't mean anything.
If this were an automobile repair forum, the question you posted would be like going to an automotive repair forum to ask why Toyota has stopped making a certain part or making that part available to the public. How would the people in the forum know why Toyota is doing that? They, wouldn't, Toyota would. What could the people in that forum actually do about the availability of that part? Absolutely nothing. So why waste your time asking them if they don't know and can't do anything about it? Do you see my point now?
If you want to know if there is a known rooting method for your device, do a Google search for:
"How to root (your model number)"
If that doesn't find anything, there is not a known rooting method for that device. If you find nothing, you'll have to experiment for yourself to find working method.
If searching doesn't find anything specific, you'll have to try the various universal rooting programs on PC or the various android rooting apps, try all of them that you can possibly find.
If the universal rooting programs or apps don't work, you can try finding a copy of your stock firmware, then extract the boot.img from the firmware then use Magisk on PC to patch the boot.img then flash that boot.img on your device then install the Magisk Manager app on your device. But, if your bootloader is locked, you will not be able to flash the patched boot.img.
If you want to know how to flash your device, do a google search for:
"How to flash stock firmware (your model number)"
Or
"Return to stock (your model number)"
That should find guides for flashing your device.
Notice that the Google searches are simple and to the point,
"How to (the thing you're looking for) (your model number)"
It isn't difficult to use Google to find answers, you just have to keep your search terms simple and direct.
Sent from my SM-S767VL using Tapatalk
Click to expand...
Click to collapse
Thanks for Information all you said about Google etc. I Tryed but for this Model iz Xtream Difficult
y even not will find a Stock Firmware to Download lmah crazy
In My Opinion Samsung Devices are the best Phones and most open about for Rooting and Flashing Roms.
for the nem Palm PVG 100 Devices i also not finding something or how someone has tryed to Root or Flash
a think it will be possible trough SP Flash or something .
Will see, but Anyway i have Realy to Say Thanks to the XDA Devolpers Comunitys for dont let Obsolete so many Phones thrugh
Custom Roms . my Sam. P1000 still runs alot of Apps ho this devices was never Supportet with the Stock Rom
the Best is espacialy for the S4mini iz incredible wha the guys from ASOP Team has done . Oreo on a S4 mini and in a realy Fast Way !
so with this also Thanks to this Guys ho realy thinks in a right decision for All Devices. I am realy not a fan of Updates and New Api,s for Apps
because in this was alot of Phones and more will get faster obsolete etc. Thats why realy Thanks for all this Devs. for the nice Roms.
Greets DEXXO
DEXXO said:
Thanks for Information all you said about Google etc. I Tryed but for this Model iz Xtream Difficult [emoji14]
y even not will find a Stock Firmware to Download lmah crazy
In My Opinion Samsung Devices are the best Phones and most open about for Rooting and Flashing Roms.
for the nem Palm PVG 100 Devices i also not finding something or how someone has tryed to Root or Flash
a think it will be possible trough SP Flash or something .
Will see, but Anyway i have Realy to Say Thanks to the XDA Devolpers Comunitys for dont let Obsolete so many Phones thrugh
Custom Roms . my Sam. P1000 still runs alot of Apps ho this devices was never Supportet with the Stock Rom
the Best is espacialy for the S4mini iz incredible wha the guys from ASOP Team has done . Oreo on a S4 mini and in a realy Fast Way !
so with this also Thanks to this Guys ho realy thinks in a right decision for All Devices. I am realy not a fan of Updates and New Api,s for Apps
because in this was alot of Phones and more will get faster obsolete etc. Thats why realy Thanks for all this Devs. for the nice Roms.
Greets DEXXO
Click to expand...
Click to collapse
XDA itself is not involved in which devices do or don't get support or custom development.
It is up to the community of members, it is the members that figure out rooting methods and it is members that create the custom developments that are available here. It isn't like XDA has a team of people that are tasked with developing for every single android device model that is created/sold.
Devices that do not have known rooting methods or have no custom development of any kind are due to several reasons, such as:
1) there are not enough users in the community that own the device
2) the device has no stock firmware available and/or does not have a stock source code that is available to the public. Without these, custom ROMs can not be created.
3) there are no users or developers with the experience or skills to create custom software that own the device. Developers only build for devices they personally own and real developers don't buy cheap, off-brand, unpopular devices. If someone here owned a device like yours and had the skills to build ROMs, there would probably already be ROMs for your device.
If your device does not have a stock firmware that is available and has no stock source code available and you do not have the necessary developer skills, you are out of luck when it comes to customizing your device or ever seeing custom development for your device.
If your stock source code was available, you could have tried paying a developer to develop ROMs your device, but it would have required you buying another device like yours and sending that device to the developer so they could use it for testing what they build before releasing their development to the community here.
If you really want to blame someone, blame yourself for buying a device that no developer would ever care about working with.
If you want to be able to customize a device, here is some advice.
1) don't buy cheap, low end, off brand, unpopular devices, it doesn't have to be an expensive flagship device, there are some decent mid-range devices that receive custom development.
2) don't buy a device that does not have stock firmware available and/or has no stock source code available.
3) you are going about it all wrong, don't go buy a device and then come here looking to see if anything is available here for the device. Come here first and see what devices have available development here and what those developments are and use that information to choose which device to go buy and THEN go buy the device.
So, you see, there is a lot more to the story than just.....
"Hey, I got an android device and I'd like to root it and use custom ROMs on it"
Sent from my SM-S767VL using Tapatalk
Droidriven said:
XDA itself is not involved in which devices do or don't get support or custom development.
It is up to the community of members, it is the members that figure out rooting methods and it is members that create the custom developments that are available here. It isn't like XDA has a team of people that are tasked with developing for every single android device model that is created/sold.
Devices that do not have known rooting methods or have no custom development of any kind are due to several reasons, such as:
1) there are not enough users in the community that own the device
2) the device has no stock firmware available and/or does not have a stock source code that is available to the public. Without these, custom ROMs can not be created.
3) there are no users or developers with the experience or skills to create custom software that own the device. Developers only build for devices they personally own and real developers don't buy cheap, off-brand, unpopular devices. If someone here owned a device like yours and had the skills to build ROMs, there would probably already be ROMs for your device.
If your device does not have a stock firmware that is available and has no stock source code available and you do not have the necessary developer skills, you are out of luck when it comes to customizing your device or ever seeing custom development for your device.
If your stock source code was available, you could have tried paying a developer to develop ROMs your device, but it would have required you buying another device like yours and sending that device to the developer so they could use it for testing what they build before releasing their development to the community here.
If you really want to blame someone, blame yourself for buying a device that no developer would ever care about working with.
If you want to be able to customize a device, here is some advice.
1) don't buy cheap, low end, off brand, unpopular devices, it doesn't have to be an expensive flagship device, there are some decent mid-range devices that receive custom development.
2) don't buy a device that does not have stock firmware available and/or has no stock source code available.
3) you are going about it all wrong, don't go buy a device and then come here looking to see if anything is available here for the device. Come here first and see what devices have available development here and what those developments are and use that information to choose which device to go buy and THEN go buy the device.
So, you see, there is a lot more to the story than just.....
"Hey, I got an android device and I'd like to root it and use custom ROMs on it"
Sent from my SM-S767VL using Tapatalk
Click to expand...
Click to collapse
Thanks for the Info
but wich Phone a buy a surely i dont need XDA or Ask about if they have open Codes or Stock Roms:highfive:
this Palm Phone PVG -100 is realy Unic in the hole Marked , because iz small (xtrem and has hightech from today) 8 Core Snap Dr.. alot Ram and iz
incredible Fast . And my Question for Rooting a sutch device iz more about that you can remove some Provider Bloatware. etc.
how said we will see what will come on the Comunity for this Device
Greets D
DEXXO said:
Thanks for the Info
but wich Phone a buy a surely i dont need XDA or Ask about if they have open Codes or Stock Roms:highfive:
this Palm Phone PVG -100 is realy Unic in the hole Marked , because iz small (xtrem and has hightech from today) 8 Core Snap Dr.. alot Ram and iz
incredible Fast . And my Question for Rooting a sutch device iz more about that you can remove some Provider Bloatware. etc.
how said we will see what will come on the Comunity for this Device
Greets D
Click to expand...
Click to collapse
Whether or not the stock firmware and stock source code is available or not is absolutely essential to building custom ROMs.
Ok, have it your way then. Continue wasting your time and money on devices that will probably never have anything posted here to root or modify them.
As I said, not all devices get rooting methods and custom development posted here, only the ones owned by people who had the experience to root the device and/or build custom ROMs, they find a rooting method for their device themselves then post the method here or they create custom development for their device themselves then post it here.
You don't understand how things actually work here or where the information posted here actually comes from. It comes from users just like you and I that figure it out for themselves if nothing is here and then post it here for others. There is no way to know which devices will gain root until AFTER it has already been figured out, we can not know BEFORE. We can not look into the future and predict when or if "this" or "that" device will have a rooting method discovered, it can't be done, so there is no point in asking "When will this device have root?" because an answer to that question does not exist.
No one knows which devices will receive development or rooting methods. That depends on who buys one of the devices and if they decide to modify the device, if they have the knowledge to do so.
You will just have to wait and see.
In my honest opinion, that device will probably never have anything useful posted here. I can go ahead and tell you that device is, more than likely, not popular enough to receive support here at XDA.
If you feel like you would like to try and learn how to root the device and learn how to develop custom ROMs and such, by all means, go ahead. You will probably gain root and have custom development for your device sooner if you just do it yourself. Your only other option is to wait to see if someone else figures something out that works on your device, which isn't very likely to happen any time soon. It doesn't matter how cool the device is or what the specs are, if no one with experience buys the device, it doesn't get support in this community.
By the way, depending on the security measures that have been implemented in your devices stock firmware, adb can be used to remove bloatware without root.
Do a Google search for:
"Remove bloatware without root"
You'll find lots of information about using adb to remove bloatware.
Good luck
Sent from my SM-S767VL using Tapatalk
You can disable (for all) or "uninstall" for the current user most the bloatware. A few things are tied to receiving SMS but you can read about the ones you can safely remove in the battery life thread I created. That thread assumes you're not too bothered about automatic updates as they are pushed by verizon.
www (i.e. google) also works for replacement SIM tray for Palm PVG 100. js.
snoopy20 said:
You can disable (for all) or "uninstall" for the current user most the bloatware. A few things are tied to receiving SMS but you can read about the ones you can safely remove in the battery life thread I created. That thread assumes you're not too bothered about automatic updates as they are pushed by verizon.
Click to expand...
Click to collapse
Yes you can somone disactivate but not all. But on this Verizon PVG-100 the Bloat ware iz not tu mutch.
We are still working on a root solution. We have a temp root, but can't get into the bootloader.
DEXXO said:
Thanks for Information all you said about Google etc. I Tryed but for this Model iz Xtream Difficult
y even not will find a Stock Firmware to Download lmah crazy
In My Opinion Samsung Devices are the best Phones and most open about for Rooting and Flashing Roms.
for the nem Palm PVG 100 Devices i also not finding something or how someone has tryed to Root or Flash
a think it will be possible trough SP Flash or something .
Will see, but Anyway i have Realy to Say Thanks to the XDA Devolpers Comunitys for dont let Obsolete so many Phones thrugh
Custom Roms . my Sam. P1000 still runs alot of Apps ho this devices was never Supportet with the Stock Rom
the Best is espacialy for the S4mini iz incredible wha the guys from ASOP Team has done . Oreo on a S4 mini and in a realy Fast Way !
so with this also Thanks to this Guys ho realy thinks in a right decision for All Devices. I am realy not a fan of Updates and New Api,s for Apps
because in this was alot of Phones and more will get faster obsolete etc. Thats why realy Thanks for all this Devs. for the nice Roms.
Greets DEXXO
Click to expand...
Click to collapse
hardbodyrichert said:
....dude...whatever you're trying to ask or trying to do, I can guarantee that this is NOT the forum to do it in. Please don't post on this site anymore unless you have done your research into the topic first, by reading what others have posted, and what info is available for your device. Posting is primarily for discussion and contribution. If everyone just posts any random questions they have without even googling it first, then the threads become completely flooded and then unhelpful for those who are actually trying to discuss something.
And fyi, we are still working on a root solution. We have a temp root, but can't get into the bootloader.
Click to expand...
Click to collapse
dude i dont know wahts exaclty you wanna show with this what you write , but just for info this Thread is intended for ALL
Questions about the Palm PVG-100 so if you can handle it fine :good: and Rooting iz not the only problem
where you can find a Sim Tray Replace for this phone. (YES A GOOGLET IT ) so if you can helph with this fine too
If the phone hasn’t a permanent root yet, does that mean no apks can be extracted from it?
I’m looking to try and figure out how to get the palm launcher on my own device, but I don’t see anyone’s who ported it or extracted it as of yet, and I’d hate to ask someone to try if I know they aren’t able to.
2PiSquared said:
If the phone hasn’t a permanent root yet, does that mean no apks can be extracted from it?
I’m looking to try and figure out how to get the palm launcher on my own device, but I don’t see anyone’s who ported it or extracted it as of yet, and I’d hate to ask someone to try if I know they aren’t able to.
Click to expand...
Click to collapse
As long as you do it while the device is rooted, you shouldn't have a problem.
Sent from my SM-S767VL using Tapatalk
2PiSquared said:
I’m looking to try and figure out how to get the palm launcher on my own device, but I don’t see anyone’s who ported it or extracted it as of yet, and I’d hate to ask someone to try if I know they aren’t able to.
Click to expand...
Click to collapse
com.tct.pepitolauncher.apk
1806 said:
com.tct.pepitolauncher.apk
Click to expand...
Click to collapse
Thank you, got it on my device!
For anyone trying this themselves, I had to decompile the app, modify the manifest and remove the sharedUserId, and recompile and resign to get it to install. Then I had to give it secure settings permissions via root so it wouldn't crash.
Since my phone is larger and a has a QHD display, the apps were a bit small and it didn't fit well. Changing DPI did not fix, the launcher seems to only look at resolution, not DPI. So, I then changed the resolution of my device to match the Palm and decreased my dpi to make other apps still usable. Not sure what the default palm DPI and text size are, but I found a happy medium for me.
Only issue is for some reason the google search bar up top doesn't appear on the home screen but I can still click the area and get to search, not sure why, but works well otherwise. The left pane on the home screen is also black but I don't know what's supposed to go there. Probably some other dependency I don't know about. Widget pane on the right works though.
Overall pleased, thanks again!
Edit: got it to work perfectly by setting is as a privileged app and turning off dark mode. Left side pane is google now page, and top search bar now appears properly.
Hello, Is there a way to edit the APN. It seems to be locked.

Question Anybody have any clue as to how one would go about unlocking A536W or other models' locked bootloaders?

I've tried looking around online and whatnot and have asked many people (even going as far as to email Samsung's team in hopes they might help out somehow) but I always end up back at square one. I genuinely doubt that it's impossible, but I don't know where else to go or what else to do. Does anybody know of a device with a similar situation that I might be able to work a method off of? Perhaps another Samsung device previously thought of to be "impossible to unlock" that I may learn something from? I'd really love to be able to unlock and root and flash this device, as its hardware is quite nice and fast: it's just unfortunate that it gets stuck with OneUI (I know everyone has different opinions on the matter, but I just really don't like Samsung's OS, personally).
Any help or guidance or advice - no matter how small - will be greatly appreciated. Thank you in advance.
you are not having the able to unlock the locked phone that has locked bootloader because they don't wnat you to unlock your phone
TringQuack said:
you are not having the able to unlock the locked phone that has locked bootloader because they don't wnat you to unlock your phone
Click to expand...
Click to collapse
Realme RMX2155 was previously thought to be not unlockable for awhile but somebody ended up cracking it via editing firmware files via hexeditor and some other stuff. Eventually, somebody found an even easier exploit. It's not quite the same as the A53, which is why I'm asking if anybody has any ideas. Tons of unofficial methods exist for different models - some easier and some more difficult. If everybody thought that an official method had to be the only way, I'm near-certain XDA forums would be mostly dead with only a few device-forums active.
I've asked on here previously about unlocking the bootloader for my A536U, but it really went to dead ends. The best asset to cracking these devices is time. Just be patient, someone may find an exploit soon.
Although, finding an exploit has been done for phones, I read years ago that someone who did that for one only got it by chance. Its not easy.
Anyone however can sell it or trade it in and buy a device that's unlockable. Much easier.

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