Factory reset locked device - Xperia Z5 Q&A, Help & Troubleshooting

I have my brothers phone which has been dormant for a couple years. He wants to use it again but forgets the unlock pin. How can I reset the phone e.g. through recovery mode etc. (by the way, I can't enter recovery mode from off state using power and -vol)
Can anyone help step me through it?
N.B. I can not use the main menu
Cheers

Related

[Q] Device locked, no ADB, how to access recovery

Hi,
I cheaply acquired a China 7"-tablet (Amoi Q50). Unfortunately, it is has a lockscreen activated and ADB not active. The former owner claims to having forgotten, anyway, he does not want to help...
The plan is now to access recovery and wipe user data. But...
I feel I tried every hardkey combo to access recovery, but any hint would be valuable and I will try again. (I have Power, Vol+, Vol- and a small reset knob on the back). I managed to access Android safe mode with Vol- during pwer up, but that has the lockscreen as well.
Is there a software (PC-side) way to access recovery mode or to wipe all user data without ADB active?
Would it help to force the tablet into download mode (like in Google?q=how-to-save-a-bricked-phone-with-paper-clips-and-pencil-graphite; yet I would use resistors)? What would I do then?
Help appreciated
denkbrett

Desire S- Cannot Access Recovery Mode

can't access recovery mode plz help
forgot the pin password after not using it for 2 year. Don't see the option to access the google account to reset the password either. so the only way for me to use my phone again is to factory reset. but the hold down and power button doesn't work try it so many time. any way to factory reset it. the debug is not on so cant do anytime in cmd. help plz
did u try pulling the battery out for a min then back in then press n hold vol down + power. fastboot might of been checked in settings.

Needed help to reset a phone (no access to OS, vol-+pwr not worked)

Hi. Have old desire s with graphical password is set, so no access to OS. I need to reset it but cant access fastboot for some reason. Is there any ways to reset phone?
Volume Down + Power Button - just boor device normally

HTC One A9, Cannot enter Recovery mode.

Greetings all, As the title suggest I have an HTC One A9 unlocked and I am trying to factory reset it after re-locking bootloader. However, Whenever I boot into boot mode and select to reboot into Recovery mode I am greeted with "Failed to boot to recovery mode" With suggestions to press volume up or down to go back into bootmode. Upon resetting my phone I am sent to a data encryption screen where it ask to enter a password to decrypt my data, Now I can enter any number I want and it goes through saying "The password you entered is correct but your data is corrupt." And gives me a button to factory reset my phone, So I press it and it resets my phone and enters bootmode where my only options are; Reboot, Reboot to bootloader, Boot to download mode, reboot to recovery (Which I just covered does not work for me), Power down. I've looked into this problem before coming here and other people with similar problems have no problems entering recovery mode and even have an option to factory reset the phone from the boot loader menu, However I do not have that 'Factory reset' option in my boot loader menu.
I've spent the last two hours looking at various websites and various topics in this forum but cannot find a solution to aid me. I was hoping to be able to just fix this and return to my phones current settings without wiping anything, But at this point I'll be happy to be able to just get past this and will be satisfied with factory wiping the phone and having it be useable, As I'd like to avoid having to buy a new phone it at all possible.
When I go to recovery mode, I get a phone icon with a red symbol in it. Then I'm able to hold power button and tap the vol up button to proceed. If you're fine wiping the phone, have you tried using the .exe rom file from the HTC site? You need HTC sync installed on the PC, and have phone in download mode use it (at least that's what I've had to do). It should, I believe, reflash recovery mode.
rouyal said:
When I go to recovery mode, I get a phone icon with a red symbol in it. Then I'm able to hold power button and tap the vol up button to proceed. If you're fine wiping the phone, have you tried using the .exe rom file from the HTC site? You need HTC sync installed on the PC, and have phone in download mode use it (at least that's what I've had to do). It should, I believe, reflash recovery mode.
Click to expand...
Click to collapse
I have not tried that. But I would love to, Are you able to provide me with a link to the said rom exe file? As I cannot locate it on htc's site, Unless I am that blind..........
KingCarrot said:
I have not tried that. But I would love to, Are you able to provide me with a link to the said rom exe file? As I cannot locate it on htc's site, Unless I am that blind..........
Click to expand...
Click to collapse
Google search 'HTC One A9 rom', and look for result that's HTC site.
www.htc.com/us/support/rom-downloads.html
The easyest way should: take your matching RUU and flash your device. This solves your problem

Need help with my Google FRP locked [non-rooted] LGL455DL

I made the mistake of Factory Resetting my phone after a few failed attempts at remembering the Pattern to unlock the phone, in doing so I ended up being stuck in the set-up process because I forgot the Google account I was logged into on it before the Factory Reset, had been an account I just quickly made on the spot months ago just to set up an app on it. I'm posting here for help with this since I'm on day 4 of trying to find a way to bypass this and my head is ready to explode. I feel like someone with a fresh mind would be able to point me in the right direction.
If anyone can let me know if I'm doing something wrong or missing some steps that will help me try any one of these, or honestly any advice at all... I'd very much appreciate it and it'd help relieve a huge chunk of this ridiculous headache this has all been.
Thanks in advance!
What I've tried thus far --
- I know for most ways around this, USB debugging needs to be enabled. But since I cannot get past the initial set-up process, I can't access the settings to enable it.
- I also know that for a lot of Android devices USB debugging is enabled by default in Recovery Mode but everywhere I've searched for the hardware combination to boot into Recovery/Download mode, all say the same thing:
Turn phone off > Power up with Vol. Down + Power button until 'Download Mode' is displayed (for boot into Download mode, while holding Vol. Down + Power button plug OTG cable into device)
- My problem with this is that on my device, Vol. Down + Power button, restarts the phone. So instead of 'Download Mode', I'm just restarting the phone over and over again. I was able to get my phone to boot into was Safe mode using the Power button + Side button.
- I've also tried getting around this through a series of steps which involved the 'TalkBack' accessibility feature, but when I try toggling to enable it I just get a message saying "Complete setup first to continue"
From there --
I started looking up Stock ROMs that I'd be able to just flash the firmware. But for the life of me, I cannot seem to find anything for this device. And this is where I'm pretty much at now.
To remove FRP lock you boot into phone's Recovery mode and apply
1. Wipe data
2. Factory Reset
Every Android device gets shipped by default with Android Recovery.
xXx yYy said:
To remove FRP lock you boot into phone's Recovery mode and apply
1. Wipe data
2. Factory Reset
Every Android device gets shipped by default with Android Recovery.
Click to expand...
Click to collapse
I can't get my device to boot into Recovery mode. Everywhere I look up, it tells me to Power off device, then Press Vol. Down + Power key until the menu appears. But on my device, all that combination does is force the phone to restart.

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