yashsingh1/xdaforums huggingface dataset:
[Windows RT Development and Hacking] PROTOCOL V:
There is no description here of how to hack Secure Boot. (Not yet)​

Hello everyone, I am the owner of the Lumia 2520 and as its owners, I would like Windows 10 ARM for this device, but as we know it does not work there stably, so I want someone who has access to the device or knowledge that is higher than mine all together who will be in this forum thread to hack Secure Boot.

Below I want to show what I learned when trying to hack the Lumia 2520. Perhaps some of my words will be too crazy.

I know that for W10-Lumia2520 hacking Secure Boot is not enough, but this will be the first step.

1. Power Shell has commands to enable Secure Boot protection.

View attachment 6085937View attachment 6085952

These commands manage the security policy and, moreover, they are capable of issuing rules for Secure Boot. (Maybe)

Of course, I tried to disable Secure Boot via power shell, but you understand that UEFI sent me to hell, so I turned to Microsoft help for these commands, [https://learn.microsoft.com/en-us/powershell/module/secureboot /?view=windowsserver2022-ps ] but I don’t understand anything in this regard, so I turned to ChatGPT and it told me that in this environment there is a command to disable Secure Boot, but when I enter the command to disable Power Shell it reports that it does not know this command and This means that Microsoft cut out the Secure Boot file from the cmdlet.

Someone who understands this may be able to figure it out, but my knowledge ends there for now.

2. I also tried to disable nx AlwaysOn, but Secure Boot is enabled and blocks such commands.

View attachment 6085951View attachment 6085944

To do this, I was even able to enter Safe Mode. But to my surprise, Microsoft turned on a lock for my book case (a case with a keyboard) and I couldn’t use not only the keyboard but also the screen, but fortunately you can use the built-in micro-usb for a USB hub, so I was able to use Safe Boot, but to be honest There’s nothing interesting there, or maybe I wasn’t looking well. If you have any ideas, write me, I'll try anything.

These are not all my finds, most of them are just putty files such as the Secure Boot Update folder, which contains the db and dbx files that give the Secure Boot update, but I don’t even know how to use it. As a result, maybe someone else will offer their thoughts and I hope that we will be able to hack Secure Boot.
[Windows RT Development and Hacking] PROTOCOL V:
TEST MODE not working.
[Windows RT Development and Hacking] jwa4:
Hardly anything working in Safe Mode is to be expected, its not a lock but just a case of the the relevant drivers not being loaded in Safe Mode.

You may already know all of this but just in case...

As you mentioned disabling secure boot may not be enough however there are a number of people who still own Lumia 2520's that didn't get jailbreak nerfed, unfortunately even users with devices still capable of using the secure boot debug policy (Golden Keys) have found Windows 10 to be a difficult goal. Using the policy isn't the same as disabling secure boot but for the purposes of running Windows 10 it doesn't really matter.

You will find numerous comments scattered around various Discord and Telegram groups that say salvaging qcpep/qcpepproxy from Windows 10 Mobile / Lumia ARM32 Project is the key to getting the leaked build running on Lumia 2520's but there are an equal number of comments that state that this doesn't work.

I'm not sure who is right but to date I have not seen a single person show a working example of Windows 10 running on a Lumia 2520 with the pep drivers (either those that shipped with RT or W10M) loaded. Without these drivers virtually nothing works and with them the end result is always a BSOD.

Interestingly Windows 10 Build 15035 will actually boot to desktop on a Lumia 2520 with or without a jailbreak and with secure boot still enabled (all RT devices except Surface 2 will) but without a solution to the qcppep/qcpepproxy issue its pointless.
[Windows RT Development and Hacking] jwa4:
I guess you are trying the Myriachan jailbreak? If the device has had a Windows Update from beyond August 2015 then you would have to remove subsequent updates or just clear the eMMC and run recovery from USB before trying to jailbreak again.
[Windows RT Development and Hacking] PROTOCOL V:
I agree, but I will still try to not only hack 8.1 RT but also disable Secure Boot, I think that Secure Boot is very closely related to the OS, so security mechanisms such as BitLocker, AllwaysOn, DEP, Hyper-V are enabled, it seems to me that you need to install drivers from 1520 and not 930, most install these drivers, I’m not sure that they work, but it seems to me that after disabling Secure Boot we will be able to figure out the Qualcomm drivers since, according to the technical documentation, Secure Boot has access to the drivers and reads them every time the device is turned on. If I'm an elder, I might be able to do it.
[Windows RT Development and Hacking] jwa4:
As far as I can tell none of the combinations of available drivers from Lumia have worked but its very possible someone had success and just hasn't reported it. Even without Windows 10 support a way of disabling secure boot would be nice for the Qualcomm devices, this would at least open up alternative OS options to those that are interested.

Yahallo for the Tegra devices was a surprise when it dropped in 2020 so it goes to show its never too late for progress to be made.

There were a couple of ideas floating around the various groups on Telegram over the years but from what I can tell they didn't go beyond speculation and the feasibility of them isn't something I can comment on. One was using the Myriachan jailbreak and a specially written kernel mode driver to disable secure boot and another was perhaps adapting the WPInternals UEFI_BS_NV exploit? Sadly I'm about as far as you can get from being on expert on this so I could just be talking rubbish or misremembering something I read during the covid times.
[Windows RT Development and Hacking] PROTOCOL V:
DISM system

Version: 10.0.19041.3636, this version of DISM is used in Windows 8.1 RT U3, it’s very interesting, since this version is used by Windows 10 2004, I got one idea, if it works, I’ll post it right away :)
[Windows RT Development and Hacking] Vervol:
I got 3 2520:

1) full update

2) 0 update so it can Myriachan jailbreak

3) prototype

and on all that device i can't load pep drivers for win10...mb you have some ideas. I think your better can't go to OpenRT discord and post there.

Или можно на 4пда написать..
[Windows RT Development and Hacking] PROTOCOL V:
На 4пда тихо, но напишу если что.

At the moment I found out that the drivers need to be installed in a special sequence, I updated the device to W8.1RT U3, this update is sent to the BIOS and uefi .bin file that blocks some Windows commands, for example testsigning, when you enter this command DEP (remote access protection system) is sent to Secure Boot data, to which he responds with a ban, I found out that we can send these .bin files ourselves as updates for Secure Boot, but I don’t understand this while I’m studying, after updating Windows 10 arm 32, my system completely prevented me from even starting the calculator, but unsigned programs started without problems, we need to disable DEP (AlwaysOn nx) I don’t know how to do this yet. If you really have a prototype, then it should be possible to work through debug, but I don’t know how. I have a couple of ideas, as soon as something becomes clearer I’ll write.View attachment 6108577
[Windows RT Development and Hacking] PROTOCOL V:
People who have something in this, tell me what it is? These are the files from NPayload.efi
[Google Pixel 7] tiktakson:
when phone is rebooting to bootloader, it absolutely dissapers from device manager and cannot be detected by fastboot.

i already tried another computer, cable and drivers

also phone gets detected in fastbootd, but flashing unlock didn`t work there
[Google Pixel 7] Chickenkillla81:
It's a fairly easy fix. For some reason that happens a lot. I had the same issue with my pixel 5. Fastbootd doesn't work for unlocking. While the phone is connected in fastboot mode and not showing up just right click on the device in device manager and update the drivers. You shouldn't need anything to download. There will be a couple of options for Android drivers. One of them should work. It's been awhile but I think it was called composite fastboot driver or something similar and it got everything working. After that I was able to be recognized in fastboot and unlock bootloader
[Google Pixel 7] tiktakson:
i don't have anything in device manager when in fastboot:(
[Google Pixel 7] Chickenkillla81:
Hmm. Normally it shows up as some kind of Android device. Like mass storage. I'm still pretty sure it's a driver issue. Have you tried updating drivers while in adb?
[Google Pixel 7] Chickenkillla81:
Maybe it's an issue with the adb and fastboot itself. Where did you get the adb\fastboot files from? These are the official ones

SDK Platform Tools release notes | Android Studio | Android Developers

Android SDK Platform-Tools is a component for the Android SDK.

developer.android.com

Also here is the USB drivers for pixel in just in case

Get the Google USB Driver | Android Studio | Android Developers

The Google USB Driver is required to perform adb debugging on Windows with Google devices.

developer.android.com

And if you want to try it here is the flash tool. It does everything you can do yourself in fastboot, just automatically. I have personally not used it so you will have to check it out. I've heard it's pretty straight forward though and is done in your browser I think. Kinda cool

Android Flash Tool

flash.android.com
[Google Pixel 7] tiktakson:
thanks, I tried all of these, installed various drivers but it didn`t work. tried in linux, also didn`t work
[Google Pixel 7] Chickenkillla81:
Really? Not even in Linux? I'm dumbfounded to be honest. That's normally the kill all. Have you found anybody else on the forums with that problem?
[Google Pixel 7] tiktakson:
yeah, even lusb didn`t show anything. i found few treads about this problem, all of them don`t fix it or have a similar but solvable problem with like a usb3.0 ports. i think that need to try to flash with usbc-usbc cable, but this port is missing in my computers(
[Google Pixel 7] Chickenkillla81:
That's really odd. I hope you can figure it out. Good luck 😀
[Google Pixel 7] simplepinoi177:
Nothing no new devices pops up in Device Manager? Also, in case it had been overlooked, sometimes you need to "Show Hidden devices" to see the driver with a yellow triangle (need to update the driver manually in these cases) or correctly identify the driver (sometimes it comes up as MTP device or some other mass storage device when it needs to show as an "ADB Bootloader Interface" and you have to manually update the driver to the right .inf)....
[Google Pixel 7] Chickenkillla81:
I didn't think about the hidden devices part. It's been awhile since I had the same problem. Thank you simple. I didn't have any more ideas to help. Hopefully he gets it done 😁
[Google Pixel 7] tiktakson:
thanks, i dont know about this option. but there is only disconected devices(
[Google Pixel 7] r3nder:
I may be having a similar issue, but I'm not sure... PF will put me into fastbootd where I see valid specs, but anything I put into adb (other than, oddly enough, fastboot flashing unlock, which returns operation not allowed or whatever), says not a valid command. I'm fairly new to tinkering with newer devices, I quit rooting as a hobby when it got more complicated than TWRP lol
[Google Pixel 7] Chickenkillla81:
I do know that if you are in fastbootd it will not accept the command. You have to be in regular fastboot. When you are in recovery navigate to bootloader mode. That should put you in normal fastboot I believe.
[Google Pixel 7] simplepinoi177:
the best advice I can give is for you to create a support .zip file and upload and post it in the PF support thread.....
[Google Pixel 7] 41rw4lk:
Just throwing this out there, but if you haven't maybe try booting to bootloader from adb. Open terminal and simply execute

adb reboot bootloader

that should boot you into plain fastboot, not fastbootd.
[Google Pixel 7] tiktakson:
pc can't find the phone in this mode
[Google Pixel 7] Chickenkillla81:
There are two people with the problem. The OP can't get his phone to register at all. Even with Linux. And the other person was using pixel flasher with the fastbootd issue. Which, like you said needs to be in normal fastboot for command 😁
[Google Pixel 7] jijus:
It sounds more like this: wait till the next OTA gets released.

Google Issue Tracker

issuetracker.google.com
[Sony Xperia XZ1 Compact Guides, News, & Discussion] snoopy29:
Hi all,

I bought one for parts on aliexpress as I needed a new LCD screen. After disassembly I note the following!

1. there's some tiny resistors (0102 I think!) near the sim radio which I guess have something to do with which bands are used.

2. the device has been apart and the metal heatsink part was missing! Also several screws were missing.

3. the device has an aftermarket battery manufactured 10/21. I will report back if it is any good as I have two new Sony ones from the same time period to compare against.

4. condition of the outside is/was immaculate.

5. screen is original.

6. the SO-02K has a special SONY chip near the rear camera, possibly to off-load processing (I guess).

7. waterproof seal installed correctly
[Android Head-Units] thieuan:
Hello,

I have just ordered a China head unit as below information. But it comes without google play service, i can't use some google apps. So could someone let me know which firmware version I need to download to have google apps?

I tried to search in the forum but there are too many versions, I am not sure about my unit.

View attachment 6085958

View attachment 6085959
[Android Head-Units] Anton TNT:
You can upgrade online - connect to wifi and go to factory settings with pin 123456 and update with online method
[Android Head-Units] thieuan:
Hi,

Can you give a detail guide? I dont know which online update should I do.
[Android Head-Units] Anton TNT:
Navigate to car settings, then factory settings, when asks fpor pin code enter 123456 , choose system upgrade and folow upgrade procedure. Wait till installation finishes, car engine must be on while doing this update , most likely will update for about 20 min.
[Android Head-Units] thieuan:
There is no system update in factory setting (123456). I find one system update menu in SYSTEM menu (right above Factory menu), but there is no online option, only local upgrade option. What should I do next?
[Android Head-Units] thieuan:
And can I install below firmware? Is it correct for my unit?

TS18.2.2_20231213.180426_WINDOW-THEME1.zip

drive.google.com
[Android Head-Units] Anton TNT:
Yes you can, transfer this zip file on root directory and start local update
[Android Head-Units] thieuan:
Thanks for your support. I have installed new firmware and google play is working now.

Another question is, i can not us android picture and picture mode even I went to MORE > APPs > advanced permision then turn on Picture in picture for Google Map.

Do you know how to have picture in picture app?
[Android Head-Units] Anton TNT:
If you meant double desktop mode it is possible. Tap button for all open apps (when all running apps are visible) then choose one like google map and hold it with finger and toss it on the right side and release. First image must be active desktop and on the other app that you chose.
[Android Head-Units] thieuan:
I mean the Android picture in picture mode like attached image. I enable it in Android setting (More menu), but When I exit Google Map app, no small window like that.
[Android Head-Units] Anton TNT:
I don't know for that kind
[Android Head-Units] Oronnobd:
I am having problem with gps lost issue in this unit. can anyone help?
[Android Head-Units] Anton TNT:
Replace GPS antenna if faulty gps signal...

You can test it by using another similar antenna like modem / router antenna or DAB+ antenna if faulty.
[Samsung Galaxy S24 Ultra] debgram2000:
Is there some way to help with the battery life? I read that people are getting 30 hrs without a recharge. I'm not and I don't play music or large videos on it. I charged it last night around 10pm and right now at 12:31 pm I'm at 83%. I usually charge when it's around 50 some %. I only had it since Wed. 27th and have charged it like 5 times. I disabled what I think is a lot of apps but is there a guide on what I can disable more or what apps drain battery more? Thanks
[Samsung Galaxy S24 Ultra] Misterxtc:
I would try a factory reset first and not use a back up to restore apps if my battery was that bad. I haven't charged in two and a half days and I'm at 52%. I listen to music about 1.5 hours a day but do not game. I've had this for a little over a month and it's been great. I haven't disabled many apps and do not use any debloat lists. Those cause more problems than help in most cases.
[Samsung Galaxy S24 Ultra] raul6:
Anything over 6hrs SOT is fine
[Samsung Galaxy S24 Ultra] blackhawk:
With 5000 mAh battery?

That's a staggering 833 ma per hour! That's horrible, it's a bloody hand warmer. This phone should be able to get at 13-16 hours SOT if optimized.
[Samsung Galaxy S24 Ultra] raul6:
Optimised and in how I use it. My, happy, experience
[Samsung Galaxy S24 Ultra] blackhawk:
You're burning up that battery. It will overheat in 90F ambient temperatures, probably even less.

Heat and high cell voltage degrade Li's fast.

With a current battery capacity of approximately 3900 mAh my N10+'s gets 13 hours SOT, if I stream vids constantly 10 hours.

Samsung's improvements are disappointing to put it mildly.

OP: to optimize your phone you first need to decide what you want.

Do you need 5G?

Do you need cloud data backup?

Do you need Google Play Services and Playstore constantly running?

Bixby's and other AI junk?

Target the power hogs. Use settings to tone some of those down. Adb or ladb edits will be needed to optimize it right. This is a steep learning curve; you need to learn what each app does and it's dependencies if any. If you blindly use someone else's debloating list then it's not optimized to your needs. Unless you're like everybody else...

The many small Samsung system apps not using much power and not outright bloatware or trashware are best left alone.

To get started read this whole thread. You get what you put into it.

Use Accubattery to gauge you SOT. Be aware that Adaptive Battery never worked right and is best left off. If you find the power drain(s) the results are instant from that point on. Avoid using SmartSwitch as it can cause issues. Use SD Maid Pro for cleaning.
[Samsung Galaxy S24 Ultra] raul6:
Not at all. Imagine if you had latest Galaxy how much SOT you would be able to squeeze out of it ✌️
[Samsung Galaxy S24 Ultra] blackhawk:
I would expect at least 13 hours SOT with cloud backup and 5G off. In reality even that's not very good considering the S24U has more efficient ram and a 4nm form factor cpu. If the S24U was as efficient as this N10+ it would be getting 18 hrs SOT.

All Samsung's should be optimized or they will be hogs.
[Samsung Galaxy S24 Ultra] raul6:
We'll never know
[Samsung Galaxy S24 Ultra] blackhawk:
Maybe...
[Samsung Galaxy S24 Ultra] raul6:
Nah, not even close
[Samsung Galaxy S24 Ultra] Klaudas:
Yea and old cars are more reliable than new but I rather be in newer model rather than in old without any features.

If you want super efficient phone you should buy old nokia 3310 from ebay. And now you are buying 1000+ bucks phone and disabling all the smart stuff 🤣🫠.

About your 305.37 K temperature. So basically all hot climate countries can't use phones... ehhh I hope one day smartphones will become "smart" enough to cool themselves to avoid overheating🥲
[Samsung Galaxy S24 Ultra] OnnoJ:
My S23U is doing much better than in Reddit post, without any optimization or debloating....
[Samsung Galaxy S24 Ultra] debgram2000:
Thanks for the info!
[Samsung Galaxy S24 Ultra] debgram2000:
What does SOT stand for?
[Samsung Galaxy S24 Ultra] blackhawk:
Screen on time.
[Samsung Galaxy S24 Ultra] debgram2000:
Thanks.....(y)
[Samsung Galaxy S24 Ultra] blackhawk:
With internet and phone radio on using the tap on AOD setting after being off for the night, the usage should be >.5%@hr. If higher something is running in the background typically a cloud app like Google backup Transport. Since Android 10 the Google backup Transport app is no longer present. I think it was incorporated into Google framework Services.

In Android 10 I temporarily disable Google play Services and Google service Framework in settings unless needed.

Playstore, Gmail, Find my Device* and Framework are dependencies of Google play Services. When disabling Google play Services, Framework should also be disabled or it will use resources.

Google cloud backup needs all of these to function but it uses quit a bit of battery. It might be more efficient with 5G... or not.

Google is a greasy mess.

*if Find my Device is set as system administrator that must be turn off first in security settings to be able to disable Google play Services in settings.
[Samsung Galaxy S24 Ultra] iceepyon:
It takes a couple of weeks for the energy efficacy AI to learn your usage habits and adapt the power usage of your device.
[Samsung Galaxy S24 Ultra] blackhawk:
Think about that and tell me how it adapts?

By not staying awake all night?

If you find the apps or settings causing the excess battery usage there is no wait. You can see it as drop in mAh starting then. Google was saying that same bs 5 years ago about their clever little smart buckets. It never work right and on Samsung phones Google apps are some of the biggest offenders, constantly running in the background.
[Samsung Galaxy S24 Ultra] Liquid Li0n:
I have this with any Samsung phone already. Sometimes the battery last long, sometimes it doesn't.

Or when I charge it with a faster charger (although fast charging option is turned off) the battery goes empty faster.

When I do with a slow charger, the battery seems to last longer

I just had 38 hours from 80% to 11% but my SoT was only 2h30 minutes

But it has been used with Android Auto, 4g/5g, wifi, brightness below 50%, dark mode, RAM+ off, 1 to 120hz setting and best resolution.

I am happy with that 38 hours but no idea how to ever get 6 hours of SoT
[Mogul, XV6800 ROM Development] btvaalburg:
i need the verizon gps server cab link is broken in the tutorial for the MR1 windows mobile 6.1 update and i cant find it anywhere
[Mogul, XV6800 ROM Development] cvivor:
Where did it go?

I second that. I would really like to have it.
[Mogul, XV6800 ROM Development] pavlak21:
try this may help http://wiki.xda-developers.com/index.php?pagename=VerizonAGPSFix .................... http://wiki.xda-developers.com/index.php?pagename=TitanGpsFix
[Samsung Galaxy S23 Plus] moonraver:
I have updated my S23+ a few days ago to One UI 6.1 but still getting the same old version of Expert Raw from Galaxy Store = 3.0.02.8 released in November.

Since then, there have been another 3 newer versions of Expert Raw released according to APK Mirror - https://www.apkmirror.com/?post_type=app_release&searchtype=apk&s=expert+raw.

Do you have the same old version like me?
[Samsung Galaxy S23 Plus] qhorque:
Same version since that's the only one the Samsung Store provides. Not sure why.
[Xiaomi 12S Ultra] juckul:
Hello, everyone. I'm having some trouble fixing my Xiaomi 12S Ultra using EDL mode.

I flashed a version of xiaomi.eu incorrectly, and now I can't access recovery or fastboot modes, leaving me stuck in EDL mode.

I'm using MiFlash to recover my phone, and it's successfully detected as COM3 by my computer, which means there are no driver issues and my device is in EDL mode. However, when I try to flash a file onto the device, I get an error saying "object reference is not set to an instance of the object," and I can't proceed with the flash.

I've also encountered other errors like "index was outside the bounds of the array," and I'd appreciate any help in fixing them.

Thankk you!