Develop Bugs

Samsung i780 cannot remove the PIN lock!

Hi all,
One of the users in our company has locked himself out of his i780 by forgetting the 4-digit PIN he set on the device (not the SIM PIN).
The problem I have is that it is running one of the older ROM's that did not have the hard reset button combination on it so I cannot reset it at all. It also won't enter bootloader mode using the usual combination (although this may be because of the countdown timer on the device not accepting input).
Anyone got any ideas on what I can do next?
Thanks.

dcuk7 said:
Hi all,
One of the users in our company has locked himself out of his i780 by forgetting the 4-digit PIN he set on the device (not the SIM PIN).
The problem I have is that it is running one of the older ROM's that did not have the hard reset button combination on it so I cannot reset it at all. It also won't enter bootloader mode using the usual combination (although this may be because of the countdown timer on the device not accepting input).
Anyone got any ideas on what I can do next?
Thanks.
Click to expand...
Click to collapse
I wonder if you can short certain pins on the flash chip to destroy the checksum and thus cause the device to reset itself - this method was used in the LinkSys WRT54G router and some MP3 players..

did you try reflashing the phone with new firmware? might help since the pin is set on operating system level (afaik), the firmware upgrade is done on bootloader level.

bazzix said:
did you try reflashing the phone with new firmware? might help since the pin is set on operating system level (afaik), the firmware upgrade is done on bootloader level.
Click to expand...
Click to collapse
But he can't get into the loader mode, so Mirage is a no-go.. I suppose the phone doesent even connect to ActiveSync, hm? If it would then the official HL1/2 updaters are able to reset the phone into the loader mode and flash it

Correct, I cannot get it into bootloader mode because the usual key combo does not work and activesync refuses to recognise the phone until the PIN is entered so I cannot use Mirage or the official updaters!
Looks like I'll have to send it off to Samsung!
Cheers guys.

try contacting them first by phone and see if they can't help out. otherwise you'll have to wait for a looong time

Yeah, I've sent phones to them before, they do take a while.
They say they need them back to take the lock off so looks like it'll take a while!
Moral of this story: Don't forget that damn PIN!

dcuk7 said:
Yeah, I've sent phones to them before, they do take a while.
They say they need them back to take the lock off so looks like it'll take a while!
Moral of this story: Don't forget that damn PIN!
Click to expand...
Click to collapse
Doesn't it wipe itself after the 50th attempt?
How old is that version? before Nov2007? Can you post the version number? something like "i780XXHA4"

dcuk7 said:
Hi all,
One of the users in our company has locked himself out of his i780 by forgetting the 4-digit PIN he set on the device (not the SIM PIN).
The problem I have is that it is running one of the older ROM's that did not have the hard reset button combination on it so I cannot reset it at all. It also won't enter bootloader mode using the usual combination (although this may be because of the countdown timer on the device not accepting input).
Anyone got any ideas on what I can do next?
Thanks.
Click to expand...
Click to collapse
By Omnia this ok
1. type *7465625*638*# to set
2. type your MCC/MNC code (list here: http://en.wikipedia.org/wiki/Mobile_Network_Code), e.g.26003 for Polish ORANGE
3. type your new NCK (12345678), then OK
3. type *#7465625 to check your lock
4. type #7465625*638*# and type your NCK (12345678)
5. enjoy.

[Q] how to unlock datas

hi I wanted to lock screen with a pattern on a friend's lg g3, I did wrong and locked datas with a pattern... can you help me to remove this please ? thanks :cyclops:

fax11 said:
hi I wanted to lock screen with a pattern on a friend's lg g3, I did wrong and locked datas with a pattern... can you help me to remove this please ? thanks :cyclops:
Click to expand...
Click to collapse
Try finding out how to access your recovery and then clear your phone with a factory reset. Or you can do this from your hboot. Otherwise you should be able to reset your phone after a few failed attempts.
Sent from my One using XDA Free mobile app

ra9b said:
Try finding out how to access your recovery and then clear your phone with a factory reset. Or you can do this from your hboot. Otherwise you should be able to reset your phone after a few failed attempts.
Sent from my One using XDA Free mobile app
Click to expand...
Click to collapse
thanks but is there another way to unlock datas without a reset of all the phone ? its a bit annoying...

fax11 said:
thanks but is there another way to unlock datas without a reset of all the phone ? its a bit annoying...
Click to expand...
Click to collapse
Just keep on failing the security attempt and say forgot password

Or it will ask for your google account eventually

[Q] Cannot hard reset device, McAfee Mobile keeps asking for PIN, phone restarts

Hello, this is my first post so forgive me if I'm in the wrong area. Let me try to explain where I'm at. I purchased an HTC6500LVW from Craigslist that was restarting randomly. I figured if it boots up and works, even for a little while, I could find a solution on XDA to fix it. Well, I've tried to reset the phone a few different ways with no luck and even tried to use a tested working EXE version of the last RUU for the the verizon m7 (4.4.3) (from one of dottat's posts). The phone is locked, S-on, not rooted. The phone has a free version of McAfee Mobile app on it that is set up for security. I have never dealt with McAfee and I think their app is the cause of my problem. I can unlock the device with the McAfee PIN but it keeps prompting every few minutes. I can go into Device Administrator and revoke McAfee's permission and then uninstall the app. Then I do a factory reset and it doesn't work. Every time the phone reboots it ends up right back where I started with none of my changes saved and the McAfee app back on it with its crazy security PIN prompts. It says something about NV files when it's trying to do a factory reset. Is that some sort of security file that restores it back to where I started?
How particular is this phone when it comes to cables? I don't have original HTC data cable.

spyderbear said:
Hello, this is my first post so forgive me if I'm in the wrong area. Let me try to explain where I'm at. I purchased an HTC6500LVW from Craigslist that was restarting randomly. I figured if it boots up and works, even for a little while, I could find a solution on XDA to fix it. Well, I've tried to reset the phone a few different ways with no luck and even tried to use a tested working EXE version of the last RUU for the the verizon m7 (4.4.3) (from one of dottat's posts). The phone is locked, S-on, not rooted. The phone has a free version of McAfee Mobile app on it that is set up for security. I have never dealt with McAfee and I think their app is the cause of my problem. I can unlock the device with the McAfee PIN but it keeps prompting every few minutes. I can go into Device Administrator and revoke McAfee's permission and then uninstall the app. Then I do a factory reset and it doesn't work. Every time the phone reboots it ends up right back where I started with none of my changes saved and the McAfee app back on it with its crazy security PIN prompts. It says something about NV files when it's trying to do a factory reset. Is that some sort of security file that restores it back to where I started?
How particular is this phone when it comes to cables? I don't have original HTC data cable.
Click to expand...
Click to collapse
Press and hold power + volume - till you boot into Hboot. from there do a factory reset.

synisterwolf said:
Press and hold power + volume - till you boot into Hboot. from there do a factory reset.
Click to expand...
Click to collapse
I've tried that. It boots up the same.

spyderbear said:
I've tried that. It boots up the same.
Click to expand...
Click to collapse
Well, I've confirmed with Verizon that McAfee doesn't come pre-installed. I talked to HTC and they were stumped. The rep said that I could send it in for a new board to the tune of $230 USD. However, HTC is sending me a data cable. I did an online chat with McAfee tech support (and I use the term loosely) and they said they would have to escalate me to a senior technician.

When I try to wipe cache partition it says:
Mount SDCARD failed 1 times
Mount SDCARD failed 2 times
Mount SDCARD failed 3 times
Mount SDCARD failed 4 times
Mount SDCARD failed 5 times
Can not mount SD Card.(No such device)
Write host_mode:0 done
Here's what it says when I try to perform a hard reset.
--Wiping data...
Restore NV for Verizon. . .
Formatting /data. . .
Backup Data Preload
Backup CW Package
Restore Data Preload
Restore CW Package
Formatting /cache. . .
Data wipe complete.
Write host_mode:0 done
Does that look correct? Because it returns to right where I left it. Same junk is still on phone from previous owner.

I talked with Senior Technician from McAfee this morning. He asked me to put phone in safe mode to uninstall third party apps (theirs). The phone would not enter safe mode by holding power button on top and then long pressing power off option and selecting to restart in safe mode. He told me if it couldn't enter safe mode he couldn't help me and I would need to contact HTC (again).
So... I call HTC and speak with a rep about entering safe mode. He has me go into power setting and uncheck fastboot then power phone down and then restart but hold volume down key as soon as I see HTC logo on boot and release after it completes boot. Now it enters safe mode.
I deactivate admin rights for McAfee and uninstall app. I restart phone in normal mode - McAfee is back. I repeat but perform factory reset through settings this time - same problem. I repeat again but perform hard reset through factory recovery - nothing.
Still dead in the water.

Is encryption checked in the security settings?

disconnecktie said:
Is encryption checked in the security settings?
Click to expand...
Click to collapse
I looked at this last night... the pone acts like it's write protected for every partition on the phone. No form of reset while s-on works. Phone won't s-off either because nothing you change on the phone persists after a reboot.

dottat said:
I looked at this last night... the pone acts like it's write protected for every partition on the phone. No form of reset while s-on works. Phone won't s-off either because nothing you change on the phone persists after a reboot.
Click to expand...
Click to collapse
Wow that's crazy. I wonder if maybe they had it encrypted before they sold it to him and then did a reset which yielded the same results he keeps having. I don't know any other way the entire phone could be write protected unless it was encrypted or a script running on boot that causes it.

disconnecktie said:
Wow that's crazy. I wonder if maybe they had it encrypted before they sold it to him and then did a reset which yielded the same results he keeps having. I don't know any other way the entire phone could be write protected unless it was encrypted or a script running on boot that causes it.
Click to expand...
Click to collapse
with emmc you can never tell... hell.. i woke up this am to a text/hangout message (not sure which)... unlocked my phone (vzwM8) and it froze. Started rebooting. Would reboot in recovery/os/you name it. Seems overnight my own personal phone decided to fry it's internal EMMC. sucks

spyderbear said:
Hello, this is my first post so forgive me if I'm in the wrong area. Let me try to explain where I'm at. I purchased an HTC6500LVW from Craigslist that was restarting randomly. I figured if it boots up and works, even for a little while, I could find a solution on XDA to fix it. Well, I've tried to reset the phone a few different ways with no luck and even tried to use a tested working EXE version of the last RUU for the the verizon m7 (4.4.3) (from one of dottat's posts). The phone is locked, S-on, not rooted. The phone has a free version of McAfee Mobile app on it that is set up for security. I have never dealt with McAfee and I think their app is the cause of my problem. I can unlock the device with the McAfee PIN but it keeps prompting every few minutes. I can go into Device Administrator and revoke McAfee's permission and then uninstall the app. Then I do a factory reset and it doesn't work. Every time the phone reboots it ends up right back where I started with none of my changes saved and the McAfee app back on it with its crazy security PIN prompts. It says something about NV files when it's trying to do a factory reset. Is that some sort of security file that restores it back to where I started?
How particular is this phone when it comes to cables? I don't have original HTC data cable.
Click to expand...
Click to collapse
Hey did you ever fix this I have same exact issue bought an htc one m8 off ebay and cannot reset it. When I "reset" it still has previous owner info. Any help is truly appreciated
Sent from my LG-MS323 using Tapatalk

OneShotGoGetter said:
Hey did you ever fix this I have same exact issue bought an htc one m8 off ebay and cannot reset it. When I "reset" it still has previous owner info. Any help is truly appreciated
Sent from my LG-MS323 using Tapatalk
Click to expand...
Click to collapse
Boot to fastboot and do
Fastboot oem task 28
Sent from my SM-T810 using Tapatalk

dottat said:
Boot to fastboot and do
Fastboot oem task 28
Sent from my SM-T810 using Tapatalk
Click to expand...
Click to collapse
That didn't work, it weird because my phone is like the OPs phone. Except the phone will bootloop kinda like it will either load OS for like 5-20 sec and then reboot over and over or just straight bootloop. I get same results when trying to factory restore. Also if it does go to os for the 5-20 sec then like almost every app forecloses. I tried safe mode as well same situation. Also very weird is trying to use the rru and attempting to unlock bootloader. I managed after days of frustration to get it to fastbootusb but when I run rru it says Waiting for bootloader (I was already in fastbootusb) then it reboots the phone and goes to bootloop losing connection resulting in fail of umbrick. By the way it says like USB device unknown blah blah blah it malfunctioned. Then the same reboot situation happened when trying to unlock bootloader. Any ideas how to get this phone going?
Sent from my LG-MS323 using Tapatalk

Mcafee Pin Lock Code after Factory Reset on Lg 4g
Would anyone happen to know besides 000000 &/ 123456 as a pin unlock code for and Lg 4G after it has been factory reset and mcafee mobile security has a lock code on there and I cannot figure out the pin to unlock it...it only gives 10 tries before locking me out for an hour then..god only knows what...if anyone may know what that pin unlock code may be could you pleeeeeeease e-mail me at [email protected] with the code to unlock this phone I bought from someone I cant get ahold of for $150 that I cant use!! GRRRR... Any help/assistance in getting this code or pointing me in the right direction to get it would be greatly appreciated...please & Thank You in advance

Stuck on "Google" screen

I was using my phone like I usually do, and then it suddenly froze. So I held down the power button, forcing it to restart. Ever since, the screen only shows "Google" for a while, then becomes blank; no booting animation. It would restart itself occasionally.
I tried booting into recovery mode by holding Power+VolDown, and selecting "recovery mode". For the first few tries, it would go back to the Google screen, the turn blank. After giving it a break and trying again, I finally got to the "no command" screen, and I wiped the cache partition. Sadly, I'm still having the same problem.
Is this a bootloop? How can I fix this?
Any help would be greatly appreciated.

This happened to me and Google sent a replacement phone. However the replacement phone is a refurbished phone that suffers from ghost touches Now trying to get a replacement for the replacement.

Ocelot584 said:
I was using my phone like I usually do, and then it suddenly froze. So I held down the power button, forcing it to restart. Ever since, the screen only shows "Google" for a while, then becomes blank; no booting animation. It would restart itself occasionally.
I tried booting into recovery mode by holding Power+VolDown, and selecting "recovery mode". For the first few tries, it would go back to the Google screen, the turn blank. After giving it a break and trying again, I finally got to the "no command" screen, and I wiped the cache partition. Sadly, I'm still having the same problem.
Is this a bootloop? How can I fix this?
Any help would be greatly appreciated.
Click to expand...
Click to collapse
can u boot into bootloader mode?

dominoeflux said:
can u boot into bootloader mode?
Click to expand...
Click to collapse
What's that? Is it the screen that comes up when you hold down Power+VolumeDown and gives you the option to select Start, Power Off, Restart Bootloader, or Recovery?

Ocelot584 said:
What's that? Is it the screen that comes up when you hold down Power+VolumeDown and gives you the option to select Start, Power Off, Restart Bootloader, or Recovery?
Click to expand...
Click to collapse
Yes that's the one. If u can get back to that screen you should be able to flash it back stock and re root the phone with out any problems

dominoeflux said:
Yes that's the one. If u can get back to that screen you should be able to flash it back stock and re root the phone with out any problems
Click to expand...
Click to collapse
So are you saying that I should factory reset my phone from the recovery menu, or do I have to use the method that requires the factory image?
My phone wasn't rooted btw, so I can't re-root it.

Ocelot584 said:
So are you saying that I should factory reset my phone from the recovery menu, or do I have to use the method that requires the factory image?
My phone wasn't rooted btw, so I can't re-root it.
Click to expand...
Click to collapse
Oh ok I thought it was sorry if I wasn't of any help

dominoeflux said:
Oh ok I thought it was sorry if I wasn't of any help
Click to expand...
Click to collapse
haha it's ok you tried to.
Rooted or not, do you think factory resetting it will fix the problem as long as I can get to the bootloader menu?

Ocelot584 said:
haha it's ok you tried to.
Rooted or not, do you think factory resetting it will fix the problem as long as I can get to the bootloader menu?
Click to expand...
Click to collapse
In pretty positive that it will, make sure u unlock the Bootloader first before you do anything. Do you know how to unlock it?

dominoeflux said:
In pretty positive that it will, make sure u unlock the Bootloader first before you do anything. Do you know how to unlock it?
Click to expand...
Click to collapse
nope...what's a bootloader anyway?

Ocelot584 said:
nope...what's a bootloader anyway?
Click to expand...
Click to collapse
The bootloader allows the phone to be unlocked to flash custom ROMs on it, without it unlocked you'll brick your phone. Read up about rooting your phone first so you can get the idea of what goes into it before attempting it. Once you get the general idea of unlocking the phone and flashing things on it, it becomes relatively easy. There's even a nexus root toolkit on this forum that you can download on your computer for free as well as "how-to's" for doing it

dominoeflux said:
The bootloader allows the phone to be unlocked to flash custom ROMs on it, without it unlocked you'll brick your phone. Read up about rooting your phone first so you can get the idea of what goes into it before attempting it. Once you get the general idea of unlocking the phone and flashing things on it, it becomes relatively easy. There's even a nexus root toolkit on this forum that you can download on your computer for free as well as "how-to's" for doing it
Click to expand...
Click to collapse
Wait...what?? So if I choose to factory reset my phone now without unlocking the bootloader, it might become completely useless? Is rooting necessary?

Ocelot584 said:
Wait...what?? So if I choose to factory reset my phone now without unlocking the bootloader, it might become completely useless? Is rooting necessary?
Click to expand...
Click to collapse
No is not necessary, but in order to re flash the factory image to fix the problem the bootloader must be unlocked. You never have to root your device but having a unlocked bootloader is essential to flashing anything on your device other wise like I said, you'll brick your phone. You can even lock it back to full stock once you've re flashed the image.
Edit: there's another way of flashing the factory image but it requires some searching. You might not be able to do it the way I'm explaining to you Because you would have to give it permission to be unlocked in the developers option while the phone is booted up and operative

dominoeflux said:
No is not necessary, but in order to re flash the factory image to fix the problem the bootloader must be unlocked. You never have to root your device but having a unlocked bootloader is essential to flashing anything on your device other wise like I said, you'll brick your phone. You can even lock it back to full stock once you've re flashed the image.
Edit: there's another way of flashing the factory image but it requires some searching. You might not be able to do it the way I'm explaining to you Because you would have to give it permission to be unlocked in the developers option while the phone is booted up and operative
Click to expand...
Click to collapse
Oh...I see. So what about the factory reset option in the recovery menu? Would you expect that to fix it too?

Ocelot584 said:
Oh...I see. So what about the factory reset option in the recovery menu? Would you expect that to fix it too?
Click to expand...
Click to collapse
Of course
Edit: have you tried resetting it in the factory recovery?

dominoeflux said:
Of course
Edit: have you tried resetting it in the factory recovery?
Click to expand...
Click to collapse
Nope...I was waiting to see if I could find a way to recover my data first

Ocelot584 said:
Nope...I was waiting to see if I could find a way to recover my data first
Click to expand...
Click to collapse
When u first bought your phone and it takes you through the set up window, when it asked you to put in your email, that right there backs up all your apps that you previously had in the phone so when you go through the setup again, it's going to ask you if you want to start as a new phone or recover your previous apps. You won't be able to recover all of your data but you should be able to recover all of your apps.

dominoeflux said:
When u first bought your phone and it takes you through the set up window, when it asked you to put in your email, that right there backs up all your apps that you previously had in the phone so when you go through the setup again, it's going to ask you if you want to start as a new phone or recover your previous apps. You won't be able to recover all of your data but you should be able to recover all of your apps.
Click to expand...
Click to collapse
Alright, but since all my data won't be recovered, is there a way to get access to files on my phone before I factory reset it?

Ocelot584 said:
Alright, but is there a way to get access to files on my phone before I factory reset it?
Click to expand...
Click to collapse
Sorry bro but I wish there was.... There actually is away, but you would have have to have been rooted with a custom recovery on your phone and since you had neither, there's my other way
Edit: I meant no other way

dominoeflux said:
Sorry bro but I wish there was.... There actually is away, but you would have have to have been rooted with a custom recovery on your phone and since you had neither, there's my other way
Edit: I meant no other way
Click to expand...
Click to collapse
oh... wow.
I'll just suck it up and reset it then. I'll let u know how it goes.

Please help (enterd wrong pattern and the phone is locked)

Hi everyone..
I will go into the main point directly..
firstly my phone run out of the battery then the phone slept.. I plugged the charger to get the phone powered on again...
after that the phone started and asked me for the pattern..
then I entered the pattern I save but the phone says that the pattern is wrong and I swear that pattern I use every day :laugh:
now the phone is locked and I tried to tap the "Forgot Password" button but it says that all data on the phone will be erased and that will be impossible for me :crying:
Please advice me what should I do regarding that the phone still in the warranty period!
the phone is Note 5 AI global version..
thanks in advance

If you have twrp installed then its easy to delete lock pattern. If you are stock then not so sure.. Anyways patterns dont just change, im sure you must be confusing something.

Incogn said:
If you have twrp installed then its easy to delete lock pattern. If you are stock then not so sure.. Anyways patterns dont just change, im sure you must be confusing something.
Click to expand...
Click to collapse
thank you for your fast reply..
if I used the common method on youtube using twrp then i deleted the gatekey file the pattern will reset ?
this methode won't affect warranty ?

ahmadsaadeldeen said:
thank you for your fast reply..
if I used the common method on youtube using twrp then i deleted the gatekey file the pattern will reset ?
this methode won't affect warranty ?
Click to expand...
Click to collapse
It wont affect warranty. And yes it will delete patern.