[Q] How/why does unlocking a bootloader break DRM(Widevine) - Android Q&A, Help & Troubleshooting

So i was told that unlocking the bootloader breaks DRM(wildvine).
Does anyone have insight on what is actually happening here?
How is the DRM tied to the bootloader? With android being open source how is this not easily bypassed?

WideVine
JustusIV said:
So i was told that unlocking the bootloader breaks DRM(wildvine).
Does anyone have insight on what is actually happening here?
How is the DRM tied to the bootloader? With android being open source how is this not easily bypassed?
Click to expand...
Click to collapse
Ive been looking for that answer too. The fancy thing about WideVine (WVM) is that it monitors for screen recorders and audio capture programs. The closest explanation i have received is that rooted devices can run screen recorders or kill the DRM running in the background.

Related

Auto answer

Is there an auto-answer feature built into the non-rooted Amaze and if not, is there an application that's known to work? I have a bluetooth motorcycle helmet and want the phone to automatically answer incoming calls. Used apps like AutoAnswer and My Profiles on previous HTC phones but they don't seem to work on the Amaze. Anybody using an auto-answer app with success?
No. I can assure you on that. Google makes it in 2.3+ that answering calls requires system permissions for all apps.
I'm an Android 'tard but does that mean that no app will provide an auto-answer feature? Or that Google has created some structure that makes it impossible for developers to create this kind of functionality?
Just wondering if a should keep playing musical apps trying to find one that will auto-answer a call, or resign that it's not going to happen unless I root the phone.
Thanks
crazypotato said:
No. I can assure you on that. Google makes it in 2.3+ that answering calls requires system permissions for all apps.
Click to expand...
Click to collapse
mobiweld said:
I'm an Android 'tard but does that mean that no app will provide an auto-answer feature? Or that Google has created some structure that makes it impossible for developers to create this kind of functionality?
Just wondering if a should keep playing musical apps trying to find one that will auto-answer a call, or resign that it's not going to happen unless I root the phone.
Thanks
Click to expand...
Click to collapse
I think he means it requires root permissions to work and since unrooted devices can't grant this, they won't work unless you root.
Is it possible to root the phone in order to allow these applications to work, but not disrupt all the existing functionality of the phone? In other words, is it possible to root the phone and have it work pretty much as it does now, or by rooting it, must I also flash a custom ROM? I don't want to lose my WIFI calling, camera functionality, or other issues that I read about when rooting a phone as I lack the expertise or interest to monkey with these side effects.
Thanks,
Scott
Dark Nightmare said:
I think he means it requires root permissions to work and since unrooted devices can't grant this, they won't work unless you root.
Click to expand...
Click to collapse
mobiweld said:
Is it possible to root the phone in order to allow these applications to work, but not disrupt all the existing functionality of the phone? In other words, is it possible to root the phone and have it work pretty much as it does now, or by rooting it, must I also flash a custom ROM? I don't want to lose my WIFI calling, camera functionality, or other issues that I read about when rooting a phone as I lack the expertise or interest to monkey with these side effects.
Thanks,
Scott
Click to expand...
Click to collapse
You can root and keep your stock setup, custom Rom isn't required.
Sent from an Amaaaaaazing place :-D
Please keep all question/help related threads in the Q&A section. Thank You.
I see you're a junior member. I encourage you to read the rules. Understanding them will help you wiyh understanding what is expected of you as a member, and will also prevent you from misposting threads.
http://forum.xda-developers.com/announcement.php?a=81
Thread Moved.
-------------------------------------
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Brought to you courtesy of my Galaxy Note (i717), using XDA Premium.

[Q] Ok got this sucker unlocked, what next?

Pretty much what it says on the tin? I'm nore after visual customisation? Is there anything I can use now I've got a student unlock (thx Surya) to accomplish this?
Feel free to give me other suggestions now it's unlocked.
Only difference is that you can now sideload 3 apps and you can develop for it now. Nothing more at the moment, we need interop unlock for that.
Folder app can be installed also.
only reason i unlocked this was to get enigma signal meter installed.
of course if you dont have dreambox its useless for you

FAQs - Massive Question Round Up Thread for Jewel [UPDATE: 11/5/2013]

FAQs - Massive Question Round Up Thread for Jewel
፨ INTRODUCTION ፨
Hello! So you got your awesome flashy new phone but you have a million questions to ask. Maybe it's your first Android phone. Maybe you're late to the party. Maybe you forgot everything you know.
It's okay. This thread will help you. This thread is not to discourage you from posting a new one but simply to save you time in case your question has been answered but buried over time.
This thread will also help the forum stay fresh and clutter free. However if your question was not answered here, feel free to start your own.
፨ IMPORTANT ፨
There are some things to keep in mind before reading this thread:​
It is impossible to gather all knowledge on this device, therefore this thread will always be incomplete. Please keep in mind that if something is not answered here it does not mean it wasn't elsewhere on the forum. Search before posting.
All of the questions/issues have been researched in depth and a source will be given if applicable. However, there is always a chance some of the information is wrong. Please only attempt a fix if you're comfortable doing so.
This thread will get quite long over time, I recommend you Ctrl+F (or equivalent) and search by keyword.
If you have any suggestions or want to submit a question/answer, PLEASE do so. It makes keeping this updated easier and lets the community participate. Credit will be given.
፨ FAQs ፨​
Q: How do I root and/or unlock my bootloader?
A: bigdaddy619 has a guide that will take you from stock to having an unlocked bootloader, custom recovery and root access. His guide is located here.
Q: Is there a dev S-OFF method?
A: There are currently three methods to obtain S-OFF. One is unlimited.IO's method, DirtyRacun , the other one is Facepalm by jcase and beaups. If you are running 3.16.651.3 use Moonshine by fuses, beaups, and hyuh. Finally, if you're on 3.17.651.4 use rumrunner by beaups and fuses. Thanks to bigdaddy619 for informing me about Moonshine and rumrunner.
Q: I ran HTCDev unlock/S-OFF but now when I boot I get a disclaimer in red letters by HTC, can I get rid of it?
A: Indeed. regaw_leinad made a zip to run through your Bootloader that gets rid of the red disclaimer text. Check out his thread here.
Q: I'm rooted, can I still take OTA updates?
A: While it will not cause harm to your device you will lose root and all apps dependant on it will cease to function. It is recommended to wait until until a stock rooted version that can be flashed through recovery becomes available.
Q: I'm new to Android and I'm overwhelmed with all these terms, what an Hboot? What's a recovery or AOSP or a Nandroid? I'm completely lost. Help!
A: Relax, don't panic. om4 has you covered. He made a thread covering everything you need to know. Find it here.
Q: Will unlocking/rooting void my warranty?
A: Rooting and unlocking your bootloader is considered tampering your phone and can void your warranty. That being said, rooting is completely reversible and undetectable once done. If you unlock through HTC's unlocker it will void PARTS of your warranty with HTC and add a 'unlocked' tag to your bootloader.
Q: Is there a way to make it appear as though I never unlocked my bootloader?
A: If you are S-OFF, then regaw_leinad wrote a guide located here that will give you detailed instructions to get your phone back to S-ON and revert the ***LOCKED*** flag in the bootloader.
Q: I see guides telling me to do a battery pull or my phone is stuck. Do I have to open up my phone to battery pull? Thanks to poison1916.
A: Of course not. Simply press and hold the power button for 10 seconds. You will see the capacitive buttons flash and then your phone will restart as if you did a battery pull on devices with a removable battery.
Q: What is the difference between root, S-OFF and an unlocked bootloader?
A: regaw_leinad made an in depth post here. If you have time, read it -- you will learn a lot. Otherwise here's the summed up version:
S-OFF allows complete control over your device, it will grant you access to all NAND protected partitions on your device.
Unlocked Bootloader (through the HTCDev unlock) is a "lite" version of S-OFF, it will allow you to flash a recovery and through it, a custom ROM. Zips that are attempted to be flashed through the bootloader will still need to come from HTC. UPDATE: Newer Hboot versions limit what can be done through the bootloader, please exercise caution when updating your Hboot version.
Root is not related to the NAND partitions at all, instead it grants you complete control over the OS (Android) itself. It will let you write and edit any file you wish. This lets you run apps like Titanium Backup and Adblock that need to either access or edit system files.
Q: Will all kernels work with all ROMs?
A: No. Sense-based kernels will only work with Sense based ROMs and non-Sense (Cyanogenmod, AOKP, etc.) will only work with non-Sense kernels. It is also important to note that kernels built for one version of Android will usually not work on others. Read the OP of the kernel you wish to flash to make sure it is compatible with your ROM.
Q: Why is multitasking so aggressive? My apps are being killed off quickly.
A: HTC has stated that this is working as they intended (source). Most ROMs have addressed this issue and you should receive better multitasking while running them. For default Android multitasking, consider using a non-Sense ROM like CyanogenMOD or AOKP.
Q: My data connection is slow or it disconnects and roams randomly, any fix?
A: This doesn't have one concrete answer since there are multiple reasons why data connections are acting up. Sprint could be doing maintenance to a tower near you, call them and verify. It is also possible that the connection at your location simply is not good, there is nothing that can be done in this situation. If you know that your connection should be better or your phone is randomly acting up a solution is to re provision your phone. You can go to a Sprint store and ask a tech to do it for you or follow my instructions here. Failing all that, your phone could have a hardware problem.
Q: My proximity sensor is not acting normally, is my unit defective?
A: First of all, make sure that your screen protector does not cover up your sensor. If that is not your issue you can do a proximity sensor test by launching your dialer and typing *#*#3424#*#* this will launch HTC's test menu and you can test your proximity sensor there to determine if it's working properly. Some ROMs remove the test menu, if using the dialer code does not work, flash a stock ROM.
Q: Google Wallet say my device is not supported, why?
A: This is a normal message that shows if you are rooted. wwjoshdew made a post and video here demonstrating Wallet working despite the unsupported message. It is safe to ignore.
Q: Wallet tells me my secure element is not responding, how do I fix this?
A: There is no known fix except to get a new device. Reports from other phones that run Wallet and ran across this error (HTC One X, Galaxy Nexus, etc.) say that the only way to have Wallet functionality again is to get a new device. I have a thread started here that will give more information as well as educate you on what not to do with your replacement device. UPDATE: While there is nothing that can be done for phones with a broken secure element, this should no longer occur with the newer version of Wallet.
Q: If my secure element is not working, can I still use NFC?
A: Yes. If you are okay with not using Wallet then there is no need to replace your device as stated above. A secure element error will only bar you from using secure apps (only Wallet at the moment) but NFC is still fully functional.
Q: Does a 64GB micro SD card work on our phones?
A: Yes. There are a couple of users in this thread confirming that it works.
Q: Where can I find missing apps from HTC like Flashlight and Notes?
A: Flashlight can be found in the HTC hub. If you no longer have the HTC hub app, downsouthballa posted it here. The notes app cannot be found in the Hub but puertoblack2003 ported it over and can be found on his thread.
Q: How can I change what app opens certain links/actions?
A: Due to a patent dispute by Apple, HTC has changed the way certain links are handled, basic apps like SMS and browser can be selected by going to settings> app associations and selecting the default app. Most ROMs have restored original functionality, however if you are still running stock steal25 made a mod located here.
Q: How can I change which shortcuts show on the default lockscreen?
A: The default HTC lockscreen will show the icons that are placed on the default launcher's dock. Simply put the apps you want there and it will reflect on your lockscreen.
Q: Why are my pictures smaller than 8MP?
A: This is done by default with the camera to 'fit' the pictures you take to your screen without having you zoom in. It crops the top and bottom part of your photos to make them widescreen instead of the default 4:3 ratio. To fix this simply launch your camera app and touch the settings icon> Camera options> Widescreen (untick).
Q: Why are my pictures saved to the internal phone storage and how can I force it to save to the SD card?
A: When you first launched your camera app (assuming you had an SD card in) it should have asked you if you wanted to save to the SD card. Either way, the problem is easily fixed within the camera settings or by going to Settings> Storage> App storage locations and choosing Storage card for each option.
Q: What's with the black bar with three dots on certain apps?
A: That is the menu button, since HTC did not add a hardware button Android automatically fixes the issue by placing an onscreen button. This shouldn't show up on apps that are updated for ICS, however. If you have an unlocked bootloader runandhide05 made a mod that remaps your hardware keys and gets rid of the on screen bar. Check out his thread here. Some ROMs already have a way to remap hardware keys, in that case this mod is not needed.
Q: Why can't I set different volume levels for ringtones and notifications?
A: This is not a device issue, rather an OS issue. ICS "links" the notification and ringtone volumes into one. Some people have found that using Volume Control + from the Play Store fixes the problem (but you do have to set the volumes within the app).
Q: Is it possible to charge my device while using the kickstand?
A: Yes the kickstand can support the phone's weight on either orientation. Take a look at this image.
Q: I can't send pictures using Android Beam, I touch both phones together and it makes the 'link' sound and vibrates but then nothing happens, is something wrong?
A: NFC is not intended for large amounts of data to transfer through it. It would take too long (about 2.5 minutes for an 8MB picture). It's only meant for text transfer which in turn can prompt the phone to do other things such as sharing contact cards, webpage links, market apps and such. UPDATE: The Jellybean update has expanded on this functionality, it now allows you to initiate a picture/video transfer if you tap two devices together. To get around the above issue when Beam detects that you want to send over a picture/video it will automatically turn on bluetooth, pair the devices, send the data and turn off bluetooth.
Q: How do I take a screenshot?
A: Hold down the power button and press the home button on the stock ROM. Some ROMs might change this, consult with your ROM's dev.
Q: I'm getting horrible battery life and my phone will not go into deep sleep while I'm on Wi-Fi?
A: This problem is easily corrected by disabling "Best Wi-Fi Performance" under Wi-Fi settings.
Q: Certain games/apps that require multi touch will not work correctly. Is our phone capable of multitouch?
A: Yes our phone is capable of detecting multiple screen touches. By default the phone ships with a setting that only detects 2 inputs for apps and 3 for sense. Go into Settings> Display and turn HTC Gestures off. I made a video demonstrating what happens with the setting on and off: http://www.youtube.com/watch?v=w38TwrLu90w
Q: I did the above fix but I am still having multitouch issues at times, did I do something wrong?
A: If you have a third party lockscreen, such as Widgetlocker or Go Locker, some people have reported issues with multitouch. You have to enable "Retain System Keyguard" Widgetlocker has this setting under Advanced. Once you apply both fixes install a multitouch test app from the market and test your phone. It should be able to handle ten points simultaneously.
Q: Is there a way to move application data (such as huge game files) to the SD Card instead of the phone storage?
A: The best way to do this is to swap the mount point between your internal storage and your SD card. This tricks the phone into thinking that your SD card is the storage that came with the phone and will automatically store everything there. For Sense you can download a flashable zip on maxdamage2122's thread. If you are running CM10 then check out this other thread by maxdamage2122.
Q: What's the best ROM for me? I want a mod that does X, Y, or Z where can I find it?
A: djR3Z keeps a great updated list of all the different resources for our phones. His thread is located here.
Q: NFC doesn't work when my screen is off or locked, is it broken?
A: By default NFC will not work when your screen is turn off or your phone is locked. However, there is a mod by StephanSch which lets you use NFC with the screen off or on your lockscreen (or both) his thread is here.
Q: Why does my camera open slower when I use the physical camera button?
A: It is unknown exactly why, but speculation seems to be that adding a delay to launching the app from the hardware button will prevent the camera from turning on accidentally in your pocket and wasting battery. If you still want to take quick pictures without unlocking your phone, set a camera shortcut on your lockscreen (also works on third party ones like Widgetlocker) and then simply 'unlock' to the app, it will instantly launch the camera.
Q: What is NFC? What can I do with it?
A: NFC stands for near field communications and it allows our devices to communicate with other devices and objects through a radio frequency. This could mean anything from pairing two devices together, transferring small amounts of data or executing a task or event. For example you can use NFC tags to toggle wi fi on or off when you are home. Check out this thread to see what apps to use and where to purchase tags.
Q: Does our phone have a RGB LED?
A: No. HTC is still only providing their newer phones with a green/amber LED. So applications that let you customize the 'color' of the LED won't fully work as blue is missing which is a primary color (for additive combinations, like light) required to make all other colors.
Q: Can we pair Wii motes or other bluetooth controllers?
A: Yes. The stock ROM works out of the box and sense based ROMs using HTC's newest bluetooth stack will work as well.
Q: I ran the RUU 3.15.651.16 but my ROM/radios did not update only my HBOOT did, how can I fix this?
A: First of all, if you are just reading over this thread and haven't actually RAN this RUU, then do NOT do it. If you want jellybean then just flash a stock Jellybean ROM. Now then, if you are having this issue, rollerpig has a potential fix in his thread located here.
Q: My question isn't answered here, what can I do?
A: Well that depends on what your situation is. Here are a couple of helpful tips, though:
If your question is a general one about the phone (how do I X?) then first SEARCH the forums. Try different key words. If that doesn't answer your question, feel free to make a new thread.
If you require immediate help you can always try dropping in IRC and see if anyone is willing to give you a hand. PLEASE NOTE: IRC is not there to provide 1-on-1 help. People will most likely help, but it is not expected. Don't spam with "PLEASE HELP I BRICKED MY PHONE!". Be courteous and patient.
ur Wifi fix is wrong btw...If your going to do this do it right.
http://forum.xda-developers.com/showpost.php?p=26262473&postcount=292
sgt. slaughter said:
ur Wifi fix is wrong btw...If your going to do this do it right.
http://forum.xda-developers.com/showpost.php?p=26262473&postcount=292
Click to expand...
Click to collapse
Welp. It slipped by caught it before I could edit it.
Fixed now, thanks.
Just wanted to say thanks for posting this!
Rhis my friends should be stickied all in favor like this post
Sent from my EVO using xda premium
AardvarkAttack said:
Just wanted to say thanks for posting this!
Click to expand...
Click to collapse
wileout said:
Rhis my friends should be stickied all in favor like this post
Sent from my EVO using xda premium
Click to expand...
Click to collapse
I appreciate the support I will continue to update the OP with relevant information and FAQs
Racer Of All said:
Q: Google Wallet say my device is not supported, what gives?
A: This is a normal message that shows if you are rooted. disturb3d1 made a post and video here demonstrating Wallet working despite the unsupported message. Ignore it. If it annoys you too much, unroot.
Click to expand...
Click to collapse
You couldn't of said it better! And thanks for mentioning me!
I didn't quote the WHOLE post like noobs do! #winning
Thanks
Thanks for posting. I'm glad to see you're going to keep this updated!!
disturb3d1 said:
You couldn't of said it better! And thanks for mentioning me!
I didn't quote the WHOLE post like noobs do! #winning
Click to expand...
Click to collapse
Of course sir, credit where credit is due.
rhayes362 said:
Thanks for posting. I'm glad to see you're going to keep this updated!!
Click to expand...
Click to collapse
No problem, glad it was useful
Just realized I forgot to reserve a couple of posts after OP. D'OH.
Posting this to try and reserve another post on the first page, will eventually turn above posts to continuation posts xD
Sent from my Evo 4G LTE
Great post! BTW, your English usage and grammar are better than most native speakers so you have no need to explain or apologize.
USB Host Mode/OTG
Does anyone know if anyone is working on a kernel fix or custom kernel that will enable USB Host mode?
Might consider adding the "battery pull" press and hold for power button for 10 seconds
poison1916 said:
Might consider adding the "battery pull" press and hold for power button for 10 seconds
Click to expand...
Click to collapse
Good point! People new to the phone might not know about this thanks for the suggestion.
I have a new EVO 4G LTE and I haven't rooted or done the OTA update yet. If I do the OTA update can I root it using the following method: http://htcevohacks.com/htc-evo-4g-l...tc-evo-4g-lte-unlock-bootloadertwrp-recovery/ ? I need root for using modified apps like Google Maps with Navigation for locked countries. Thanks in advance.
thanks you very much.... for posting this!
ejding said:
thanks you very much.... for posting this!
Click to expand...
Click to collapse
Damn Right! that was #11 Post!
4G service on s-off???
does unlocking the device, s-off cause the 4G lte signal no loose its service??
im coming from the motorola photon and when we unlocked the bootloader it wouldnt load wimax service???
thanks
help meanrom installation problem
Hi. I'm new to EVO 4g LTE . I rooted my phone and installed teamwin recovery. But when I downloaded mean Rom 2.9, it got stuck on step " copying flashable zip files to sdcard/meanrom-ICS '. PLZ HELP.
Whoops somehow I unsubscribed from the thread and didn't get notified of posts xD I'm probably too late but I'll reply to the questions anyway:
ArunOnline said:
I have a new EVO 4G LTE and I haven't rooted or done the OTA update yet. If I do the OTA update can I root it using the following method: http://htcevohacks.com/htc-evo-4g-l...tc-evo-4g-lte-unlock-bootloadertwrp-recovery/ ? I need root for using modified apps like Google Maps with Navigation for locked countries. Thanks in advance.
Click to expand...
Click to collapse
Rule of thumb is to never take OTAs if you want to root. I recommend you root unlock the bootloader (either HtcDev unlock or S-OFF) and then flash pre-rooted versions of the newer Stock ROM once someone releases a version. This will ensure you keep root forever.
bigslanki said:
does unlocking the device, s-off cause the 4G lte signal no loose its service??
im coming from the motorola photon and when we unlocked the bootloader it wouldnt load wimax service???
thanks
Click to expand...
Click to collapse
Nope you will be fine Wimax keys were stored in a different partition back in the OG Evo and the 3D, this is no longer the case with 4G.
Mukrpat said:
Hi. I'm new to EVO 4g LTE . I rooted my phone and installed teamwin recovery. But when I downloaded mean Rom 2.9, it got stuck on step " copying flashable zip files to sdcard/meanrom-ICS '. PLZ HELP.
Click to expand...
Click to collapse
Make sure the zip you downloaded is not corrupted, check that the MD5 hash matches if it is provided or simply try to re download the zip. Sometimes it might take a bit longer than expected so just give it some time

[Q (& maybe A?)] Effect of losing DRM keys

Hello guys - all I know is that unlocking bootloader would lose the DRM keys. And from somewhere, I read that without DRM keys, apps such as TrackID would not function.
But then, I have been looking and looking, but I can't find (perhaps a complete list of) what exactly is affected when DRM keys are lost.
Could anyone answer that? Much appreciated.
CKal said:
Hello guys - all I know is that unlocking bootloader would lose the DRM keys. And from somewhere, I read that without DRM keys, apps such as TrackID would not function.
But then, I have been looking and looking, but I can't find (perhaps a complete list of) what exactly is affected when DRM keys are lost.
Could anyone answer that? Much appreciated.
Click to expand...
Click to collapse
download of music information in default music player doesn't work anymore...
Gesendet von meinem LT22i
Thanks - but I already installed the CM9 Apollo Music Player which is almost equally as good, if not better.
Anything else? Are the Xperia Smart Tags, LiveWare, Timescape, Facebook inside Xperia affected?
CKal said:
Thanks - but I already installed the CM9 Apollo Music Player which is almost equally as good, if not better.
Anything else? Are the Xperia Smart Tags, LiveWare, Timescape, Facebook inside Xperia affected?
Click to expand...
Click to collapse
Nothing you listed is affected.
TrackID also still works without the DRM keys.
So is it safe to say that losing DRM keys did not affect anything except that you can't download music information from Walkman app?
That appears to be the case so far...I don't think anything else has popped up yet.
Maybe the Sony store (music/video unlimited) stuff doesn't? I don't use it so I have no idea if it stops working or not.
Why you didn't ask in the place where you read it? was better than opening a new thread in the wrong section.
Sent from my LT26i using Tapatalk 2
Sorry that I'm a noob. I reported my own post about moving it to the right section almost immediately after I've posted it. D:
I didn't ask in the place where I read it because 1. it wasn't in this forum and 2. I imagined perhaps some sort of a list of affected issues that I couldn't find anywhere else, only to find out that there is only 1 item on the list (if there's going to be a list).

[Q] Unlocking xperia U without knowing the unlock pattern?

My friend has been deceased in a car accident this Sunday.
Is it possible to unlock his sony xperia u phone without knowing the unlock pattern to contact his friends, relatives, and everyone that matters?
Or flashing a custom recovery to the phone somehow and cloning all the data on the storage to an sd card or hdd?
Every option, recommendation, possibility matters, even taking the phone into a sony service or sth. like that.
Let me know if you can help.
Thanks!
its ngwalk
nandika said:
My friend has been deceased in a car accident this Sunday.
Is it possible to unlock his sony xperia u phone without knowing the unlock pattern to contact his friends, relatives, and everyone that matters?
Or flashing a custom recovery to the phone somehow and cloning all the data on the storage to an sd card or hdd?
Every option, recommendation, possibility matters, even taking the phone into a sony service or sth. like that.
Let me know if you can help.
Thanks!
Click to expand...
Click to collapse
Well, just try some random patterns. Sometimes, it's just a real simple one. If that doesn't work, and you enter the wrong pattern for a certain amount of times, you can get in using the Google account (if you have those credentials) or by answering the security question. I can't think of anything other than that, but perhaps some smart folks around here have a good idea.
I think its impossible due to android security programming unless you just keep tring or answer the security questions or crack his google account password.
If USB debugging is turned on its possible.Just delete gesture.key from /data/system using adb shell..

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