Develop Bugs

[Q] Reset screen lock code - no wipe

Hello,
I was given a Galaxy Wonder to repair, the problem is the kid who's phone it is, forgot the lock screen password/code nor did he have a google account on the device. And the best part, is he want's the data!
I would backup and flash the device, but adb commands requiring root privileges won't work directly - it complains that "adbd cannot run as root in production builds"...
I got ADB up and running and installed "su" (root privileges in shell).
I've tried many suggestions with changing and deleting entries in the "data/data/com.android.providers.settings/databases/settings.db" file on the device.
There are no more references left in the "system" or "secure" tables to any kind of "locking". According to many posts the lock screen should not be present after reboot or it should be anything random (or nothing).
Also, I've deleted the gesture and password files from /data/system/...
Nothing has worked to remove the screen lock. Please help.
~confuded

[Q] Lock Screen Password Reset?

Hi All,
My 10 y.o. son changed the lockscreen password on his Kindle Fire 2 HD 7" and is now unable to access. He has used all but 2 of the allowed unlock attempts, and is now 2 tries away from an automatic factory reset. The device has all stock settings, has not been rooted nor any other modifications. I'm trying to figure out if there is anything I can do to crack/read/reset the lockscreen PIN / password with the device in its current state, or if a factory reset is the only option? The big issue is he does not want to lose his game save data. I work in IT, and am very comfortable with both Linux & Windows command line tools. Is it possible for me to access the files on his Kindle, or to perform root modifications while unable to get past the lock screen password? I have read many posts on this forum, but cannot find one which speaks to my specific situation. Thanks in advance for any replies!

danimal71 said:
Hi All,
My 10 y.o. son changed the lockscreen password on his Kindle Fire 2 HD 7" and is now unable to access. He has used all but 2 of the allowed unlock attempts, and is now 2 tries away from an automatic factory reset. The device has all stock settings, has not been rooted nor any other modifications. I'm trying to figure out if there is anything I can do to crack/read/reset the lockscreen PIN / password with the device in its current state, or if a factory reset is the only option? The big issue is he does not want to lose his game save data. I work in IT, and am very comfortable with both Linux & Windows command line tools. Is it possible for me to access the files on his Kindle, or to perform root modifications while unable to get past the lock screen password? I have read many posts on this forum, but cannot find one which speaks to my specific situation. Thanks in advance for any replies!
Click to expand...
Click to collapse
http://www.addictivetips.com/androi...e-pattern-unlock-on-android-via-adb-commands/

http://www.youtube.com/watch?v=SzdWc0ymtUU

Thanks for the link; I am not sure if USB Debugging / Enable ADB is enabled on this Kindle Fire HD device. If it is not, will this approach work? Since the lock screen password is unknown, I am not able to go into the device & check/modify this setting.
The YouTube video is not of practical use, since I am trying to avoid having to perform a factory reset.

danimal71 said:
Thanks for the link; I am not sure if USB Debugging / Enable ADB is enabled on this Kindle Fire HD device. If it is not, will this approach work? Since the lock screen password is unknown, I am not able to go into the device & check/modify this setting.
The YouTube video is not of practical use, since I am trying to avoid having to perform a factory reset.
Click to expand...
Click to collapse
No, the instructions there assume you have debugging enabled AND your computer is added to the list of authorized computers (on the device) to send adb commands. That's a nice little security feature Google added recently to prevent stolen devices from being hacked into

soupmagnet said:
No, the instructions there assume you have debugging enabled AND your computer is added to the list of authorized computers (on the device) to send adb commands. That's a nice little security feature Google added recently to prevent stolen devices from being hacked into
Click to expand...
Click to collapse
Thanks, so if I'm reading this correctly - if I am unable to connect via ADB, I have no option except for the factory reset? Am I able to root the device while the lock screen password is unknown, or would that process also be blocked to me? The factory reset is easy enough, and I know we can reinstall his games, apps, and books - but the big problem (for my son at least!) is that he will lose all of his Dragonvale progress save data!

I have a different approach on it that may be more complicated and I don't know the full method of doing this, but if u can flash twrp onto the recovery and the custom bootloader for kf2 (is it fff?) Then in twrp u could mount the partition, plug it into your pc, and copy the data folder for that game. But I am unfamiliar with the process for modifying the boot loader on kf2's since I don't have one. I know u could probably flash twrp from fastboot, but idk if the kf2 has be booted up with adb and root to install fff. Probably could force it into recovery by softbricking it but I don't suggest doing that from fastboot because it might hard brick if u flash a bad image for all I know. Only way I can think of safely getting it to soft brick and go into twrp is to get someone else with a rooted kf2 to do something like use adb to move their framework-res.apk to sdcard and then backup the system partition while the kindle is in a broken state and pull the backup, then put their framework back, chmod it and reboot and hand u the system image that's broken so u could flash it from fastboot. Usually when you do something like this the ki dle will go into recovery. Told ya my method was really complicated and well slightly risky.
Sent from my Amazon Kindle Fire HD running CM10.1 Tablet UI using xda-developers app

unlock lockscreen password
danimal71 said:
Hi All,
My 10 y.o. son changed the lockscreen password on his Kindle Fire 2 HD 7" and is now unable to access. He has used all but 2 of the allowed unlock attempts, and is now 2 tries away from an automatic factory reset. The device has all stock settings, has not been rooted nor any other modifications. I'm trying to figure out if there is anything I can do to crack/read/reset the lockscreen PIN / password with the device in its current state, or if a factory reset is the only option? The big issue is he does not want to lose his game save data. I work in IT, and am very comfortable with both Linux & Windows command line tools. Is it possible for me to access the files on his Kindle, or to perform root modifications while unable to get past the lock screen password? I have read many posts on this forum, but cannot find one which speaks to my specific situation. Thanks in advance for any replies!
Click to expand...
Click to collapse
As you are an IT experts, you may try to unlock your lock screen password with some free tool, such as Ophcrack. Also you can try other Windows Password Recovery tools to keep all data safe. I got this Youtube video: youtu.be/QyGptsC3VLg

[Q] S4 mini locked, forgot password

My second cousin has forgot his GT-I9190 lock screen password. He doesn't really care about doing a factory reset but he wants to save some data first.
Problem is, making it different from the many other cases of getting the device locked, is that this phone has no practical "advanced user options" enabled. That is, no USB debugging, no root, locked bootloader (hence stock ROM) and so on. Normally when people encounter this situation they have SOME of the above, but we don't.
Possible solution I've thought about:
If I had ADB access, I could copy the whatsapp .db.crypt7 files and the photos and that would be enough.
If I had ABD access + root, I could just edit Android's database and disable the lock screen.
If I had any recovery, I could traverse the filesystem and take everything I want. Even a dump of it would be fine, to walk over it with an external tool.
Flash ANYTHING (without deleting data, tho). But can't do, locked bootloader.
View the files in windows explorer, but Android doesn't show anything there because it's locked.
NONE of these can be done.
What can I do about it? Is there any practical, not too complicated solution for this? I just want the files at /sdcard, then the phone can be wiped.
Thanks

Engineering Mode (no longer working)

There is a special secret dial code for invoking an extended Engineering Mode on the Oneplus 3:
*#36446337#
This opens up the menue of this extended EM.
It worked. But I screwed it up, so I cannot invoke it any more
I know, shame on me and all that stuff, this was totally my fault, as I played around with the apk, copied (not moved) it to the Download folder and tried to install it like a normal app.
Did not work.
But now also invoking the original extended EM no longer works ([email protected]).
I'd like to kindly ask the real experts among you:
1. What is it I screwed up with my stupid attempts to install this apk?
2. Is there any way to restore the information the dialer needs for parsing this secret code - other than performing a factory reset?
Or which is the information that got lost or overwritten?
3. All files in
/system/app/EngineeringMode
/system/app/EngSpecialTest
appear to have been unaffected.
(But could anyone please share the proper contents of these two folders, in case the extended EM works properly for him?)
4. Is there any way of invoking the extended EM directly working around doing it with the secret dialer code given above? e.g. by modifying the apk - admittedly in a more sophisticated way I attempted ?
I hope my question comes in the proper forum, don't want to cross-post it.
Thanks in advance!

Please Post Files as attachment or Link...
Would you be kind enough to post these files or a link to them? Unsure, but suspect a permissions issue or incorrect location of said files. I think you can connect to computer (with debugging enabled, & allowing access & allowing the rsa prompt also). You will need a command line/terminal depending on your desktop /laptop os. . I would say that you can use adb devices, then adb shell and finally am then the package name. Not sure how to format the activity manager command. Mayb am start - n xxx or am start xxx. Perhaps forum or Google can help. I kno that typing just am from the adb shell will list all possible options.

Rooting the LG Exalt LTE from Verizon (LG VN220) - Request for Advice

TL.DR; Trying to root new Verizon Android flip-phone with Marshmallow 6.0.1, ARMv7. Firmware version: VN22010B. Seems to to be locked down.
Click to expand...
Click to collapse
I'm trying to root the LG Exalt LTE, or LG VN220, from Verizon. Initially, I've attempted the common rooting kits, such as KingoRoot as well as the tools described around XDA. However all failed. I suspect the cause to be the restrictive permissions of /data/local/tmp, which prevents execution of binaries. I believe any kit using this location will likely fail to achieve anything.
As such, I've been looking to achieve the same using manual techniques. The first step, as in most rooting activity is to put the device into USB debugging mode. To do this on the VN220, first compose ##7764726220. When asked for a service code, use 000000 to access a special menu. Select the Developer Options > USB Debugging and select On. There is an additional menu below named Select USB configuration, from which you can select Media Transfer Protocol or RNDIS among other options.
With that done, you can verify that you can now communicate with the device via ADB. To do so, download the Minimal ADB and Fastboot bundle. While I was successful in querying the device with ADB with
Code:
adb devices
Trying to use fastboot simply outputs "< waiting for device >" indefinitively. It is also possible to open a shell using ADB, however attempting ADB with root will fail. I don't think this is caused by having wrong drivers, as all the other tools could detect the phone (see below), but rather a permission issue.
From there, I've try to boot in different modes, which are accessible by turning off the phone, and then powering up the device while holding the Volume Down button. This will boot into a white screen with some options, including the "Safe Mode" option which I attempted. The second mode is the "Firmware Upgrade" mode which is accessible by again, powering down the phone and powering it up again, but this time holding the Volume Up for 3 seconds.
Attempting to run the following fails:
Code:
fastboot oem unlock
That being said, I later found out that LG does provides a legitimate way to unlock the bootloader via their LG developer portal. Unfortunately the VN220 is not in the list of supported devices, nor does the procedure given applies to this phone. Additionally, it requires the device ID which fails also since it requires fastboot:
Code:
fastboot oem device-id
The other attempt I've tried is using the LG Mobile Support Too l and while it was useful to obtain the KDZ file from their website, it also failed to apply the update. LGUP didn't recognise the model. (Note that both requires the USB mode to be RNDIS to detect the phone)
Trying to run apps from the internal storage such as su or even using the chmod command only results in "Operation not permitted" messages. So even temporary root seems rather difficult.
At this point, I'd like to know if anyone has any advice on additional things I could try to root the phone, or even have temporary root.
Thanks in advance
@cyberrecce

Why?
First of all thank you, I've been looking for that service code to enable developer settings / adb since I discovered the phone secretly runs Android. But I don't see why we would need root, I've been using adb to side load apps since I can't get to a menu that allows it

jfn0802 said:
First of all thank you, I've been looking for that service code to enable developer settings / adb since I discovered the phone secretly runs Android. But I don't see why we would need root, I've been using adb to side load apps since I can't get to a menu that allows it
Click to expand...
Click to collapse
1. Why? To install a custom ROM.
2. Did you get any issue with certificates when side-loading apps? I keep getting INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES. Can't seem to find the "Install from Unknown Sources" option.

Same problem
InfectedPackets said:
1. Why? To install a custom ROM.
2. Did you get any issue with certificates when side-loading apps? I keep getting INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES. Can't seem to find the "Install from Unknown Sources" option.
Click to expand...
Click to collapse
i get the same error. did you find a solution? i would really appreciate it

InfectedPackets said:
1. Why? To install a custom ROM.
2. Did you get any issue with certificates when side-loading apps? I keep getting INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES. Can't seem to find the "Install from Unknown Sources" option.
Click to expand...
Click to collapse
MendilR said:
i get the same error. did you find a solution? i would really appreciate it
Click to expand...
Click to collapse
re: the certificate error for side loading apps...
Code:
adb shell settings put secure install_non_market_apps 1
turns off the unknown source block, but I'm still getting INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES
Could the apk itself I'm trying to use have a bad certificate? Or is there another solution?

InfectedPackets said:
I'm trying to root the LG Exalt LTE, or LG VN220, from Verizon. Initially, I've attempted the common rooting kits, such as KingoRoot as well as the tools described around XDA. However all failed. I suspect the cause to be the restrictive permissions of /data/local/tmp, which prevents execution of binaries. I believe any kit using this location will likely fail to achieve anything.
As such, I've been looking to achieve the same using manual techniques. The first step, as in most rooting activity is to put the device into USB debugging mode. To do this on the VN220, first compose ##7764726220. When asked for a service code, use 000000 to access a special menu. Select the Developer Options > USB Debugging and select On. There is an additional menu below named Select USB configuration, from which you can select Media Transfer Protocol or RNDIS among other options.
With that done, you can verify that you can now communicate with the device via ADB. To do so, download the Minimal ADB and Fastboot bundle. While I was successful in querying the device with ADB with
Code:
adb devices
Trying to use fastboot simply outputs "< waiting for device >" indefinitively. It is also possible to open a shell using ADB, however attempting ADB with root will fail. I don't think this is caused by having wrong drivers, as all the other tools could detect the phone (see below), but rather a permission issue.
From there, I've try to boot in different modes, which are accessible by turning off the phone, and then powering up the device while holding the Volume Down button. This will boot into a white screen with some options, including the "Safe Mode" option which I attempted. The second mode is the "Firmware Upgrade" mode which is accessible by again, powering down the phone and powering it up again, but this time holding the Volume Up for 3 seconds.
Attempting to run the following fails:
Code:
fastboot oem unlock
That being said, I later found out that LG does provides a legitimate way to unlock the bootloader via their LG developer portal. Unfortunately the VN220 is not in the list of supported devices, nor does the procedure given applies to this phone. Additionally, it requires the device ID which fails also since it requires fastboot:
Code:
fastboot oem device-id
The other attempt I've tried is using the LG Mobile Support Too l and while it was useful to obtain the KDZ file from their website, it also failed to apply the update. LGUP didn't recognise the model. (Note that both requires the USB mode to be RNDIS to detect the phone)
Trying to run apps from the internal storage such as su or even using the chmod command only results in "Operation not permitted" messages. So even temporary root seems rather difficult.
At this point, I'd like to know if anyone has any advice on additional things I could try to root the phone, or even have temporary root.
Thanks in advance
@cyberrecce
Click to expand...
Click to collapse
Just curious - any success or updates. I can't seem to get past " INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES"

For installing apps I'm still not getting past INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES
I even tried pulling an apk from my LG G4 that successfully installed on that device and tried installing it on the Exalt, but same error.
The biggest reason I've seen for the INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES is apks that are signed poorly. When I check the apks I'm using for their signatures with the JDK it says one or more of their signatures lack a timestamp which can cause problems.
Also, downloading the apk from the Exalt's browser and trying to install from either
settings > phone settings > storage > phone > explore > downloads > open > install
or
tools > file manager > internal storage > downloads > open > install
has been coming up with "app not installed" after it tries to install the apk.
I'm not really giving up though, I just don't really know where to go from here.

effulgent.unicorn said:
For installing apps I'm still not getting past INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES
I even tried pulling an apk from my LG G4 that successfully installed on that device and tried installing it on the Exalt, but same error.
The biggest reason I've seen for the INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES is apks that are signed poorly. When I check the apks I'm using for their signatures with the JDK it says one or more of their signatures lack a timestamp which can cause problems.
Also, downloading the apk from the Exalt's browser and trying to install from either
settings > phone settings > storage > phone > explore > downloads > open > install
or
tools > file manager > internal storage > downloads > open > install
has been coming up with "app not installed" after it tries to install the apk.
I'm not really giving up though, I just don't really know where to go from here.
Click to expand...
Click to collapse
Any ideas on how to get past - "INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES"?

PAULC91316 said:
Any ideas on how to get past - "INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES"?
Click to expand...
Click to collapse
I'm still at the same place I was the other day when I posted this.
effulgent.unicorn said:
For installing apps I'm still not getting past INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES
I even tried pulling an apk from my LG G4 that successfully installed on that device and tried installing it on the Exalt, but same error.
The biggest reason I've seen for the INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES is apks that are signed poorly. When I check the apks I'm using for their signatures with the JDK it says one or more of their signatures lack a timestamp which can cause problems.
Also, downloading the apk from the Exalt's browser and trying to install from either
settings > phone settings > storage > phone > explore > downloads > open > install
or
tools > file manager > internal storage > downloads > open > install
has been coming up with "app not installed" after it tries to install the apk.
I'm not really giving up though, I just don't really know where to go from
here.
Click to expand...
Click to collapse

InfectedPackets said:
The other attempt I've tried is using the LG Mobile Support Too l and while it was useful to obtain the KDZ file from their website, it also failed to apply the update. LGUP didn't recognise the model. (Note that both requires the USB mode to be RNDIS to detect the phone)
Click to expand...
Click to collapse
Can you please share with us the KDZ file?
Thanks!

anyone?

You will need to:
- unlock it’s Bootloader. If the “fastboot oem unlock” command will not work (and I’m quite sure it will not, since we’re talking about a USA LG device), you can stop here and throw the phone out the window.
- if by some any miracle you will be able to unlock the bootloader, you have two ways of rooting it:
1. Using TWRP and a superuser zip file (magisk or the now Chinese owned supersu). The main problem with this is that you will need to compile TWRP yourself, since I doubt anyone will bother for such an obscure device.
2. Using a prerooted boot image. You will need the stock boot image, install the latest magisk manager, let it root it and then flash it via fastboot. This is particularly difficult because you will need to decrypt the kdz file (if any available) in order to get the boot.img
Even if by a greater miracle you will be able to get 1 or 2 working, there still is a huge chance that the fastboot flash command will be disabled.
Forget about solutions like king/kingoroot. Best case scenario they will fail. Worst case scenario they will softbrick the phone by gaining temporary root and then modifying /system. That will in turn trigger dm-verity which will cause the soft brick.
Forget about the scams like oneclickroot. Their so called techs will try the aforementioned and fail and you will waste your $40.
Sorry To deliver the bad news, but there’s no way out of it.

Thanks for taking your time, to help me.
I will check if I can unlock the bootloader.
Thanks alot

r3w1NNNd said:
You will need to:
- unlock it’s Bootloader. If the “fastboot oem unlock” command will not work (and I’m quite sure it will not, since we’re talking about a USA LG device), you can stop here and throw the phone out the window.
- if by some any miracle you will be able to unlock the bootloader, you have two ways of rooting it:
1. Using TWRP and a superuser zip file (magisk or the now Chinese owned supersu). The main problem with this is that you will need to compile TWRP yourself, since I doubt anyone will bother for such an obscure device.
2. Using a prerooted boot image. You will need the stock boot image, install the latest magisk manager, let it root it and then flash it via fastboot. This is particularly difficult because you will need to decrypt the kdz file (if any available) in order to get the boot.img
Even if by a greater miracle you will be able to get 1 or 2 working, there still is a huge chance that the fastboot flash command will be disabled.
Forget about solutions like king/kingoroot. Best case scenario they will fail. Worst case scenario they will softbrick the phone by gaining temporary root and then modifying /system. That will in turn trigger dm-verity which will cause the soft brick.
Forget about the scams like oneclickroot. Their so called techs will try the aforementioned and fail and you will waste your $40.
Sorry To deliver the bad news, but there’s no way out of it.
Click to expand...
Click to collapse
Any sage advice on the [INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES] issue when sideloading apps?
 @jfn0802 said they had success with sideloading, but haven't been online in ages, and none of the rest of us seem to have had the same success. Minimum, that's what I would like to accomplish.
[side note, has anyone switched from Verizon with this phone? I'm looking to, but I'm wondering a couple of things like, does verizon have the mobile hotspot function restricted from use on other carriers? & etc & just wondering how it's doing off-verizon for anyone.]

effulgent.unicorn said:
Any sage advice on the [INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES] issue when sideloading apps?
@jfn0802 said they had success with sideloading, but haven't been online in ages, and none of the rest of us seem to have had the same success. Minimum, that's what I would like to accomplish.
[side note, has anyone switched from Verizon with this phone? I'm looking to, but I'm wondering a couple of things like, does verizon have the mobile hotspot function restricted from use on other carriers? & etc & just wondering how it's doing off-verizon for anyone.]
Click to expand...
Click to collapse
my freinds are using it in Canada with videotron and everything works, without unlocking

Just to add a clue what to look at, I think these devices are from Verizon and they are blocking anonymous apps from being installed

GenTech Solution said:
Just to add a clue what to look at, I think these devices are from Verizon and they are blocking anonymous apps from being installed
Click to expand...
Click to collapse
Yes right, but how can I go around it?
Ps. I was able to uninstall apps (I removed my Verizon)
With adb shell, as the user 0, but with adb normal uninstall didn't work, but when I try to install with adb shell, it gave the same certificate erorr

GenTech Solution said:
Just to add a clue what to look at, I think these devices are from Verizon and they are blocking anonymous apps from being installed
Click to expand...
Click to collapse
Isn't that what turning on the "install from unknown sources" option should do? I still get the Install Parse Failed after switching it on with ADB.
@98jbsz I've tried to uninstall without success. What way did you do it? And does it just leave a blank space in the menu screen?
[Less on topic, sorry again, but has anyone seen the LG Wine LTE? http://www.lg.com/us/cell-phones/lg-UN220-lg-wine
It's strikingly similar to our friend the Exalt LTE here, but it seems less carrier branded/available at US Cellular, so I'm wondering if that would make a difference?
Major differences Wine LTE has more 4G bands (2/4/5/12/25) versus Exalt (4/5/13), which kind of has me kicking myself, because travel and 4G was one of the reasons I bought the Exalt. Both have quadband GSM and WCDMA, but interestingly the Wine also has CDMA.
Beyond that, there are some more smaller differences I scavenged from their LG pages, Exalt has more bluetooth profiles, supports more music formats, has more GPS capabilities, wifi calling, and 1 more ringtone. Wine has more supported video formats, and an FM radio.
I'm curious about what/if the Wine would have for sms messaging (I doubt it'd have Verizon's message+) and instead of my Verizon app...]

98jbsz said:
Yes right, but how can I go around it?
Ps. I was able to uninstall apps (I removed my Verizon)
With adb shell, as the user 0, but with adb normal uninstall didn't work, but when I try to install with adb shell, it gave the same certificate erorr
Click to expand...
Click to collapse
Alright, I also managed to uninstall my verizon and verizon's cloud app using
Code:
adb shell and the pm uninstall -k --user 0
But the Verizon apps folder on the menu screen remains, although it's empty. Any ideas on how to remove it?
Then I tried to install an apk using
Code:
pm install
and it came back with [INSTALL_FAILED_INVALID_URI] which...is a different than [INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES], but not better.

right, but when you first copy the APK to the phone, and then you install it, you will see the [INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES] error. still not a solution