Factory reset A7 2018 to remove lockscreen - Samsung Galaxy A7 (2018) Questions & Answers

There is an A7 2018 with lockscreen on, but the owner don't remember it. So it need to be remove by resetting the phone. However, unlike all the video on the net, this phone actually at the screen where "password is required after restart", not the actual lockscreen itself. This is where the problem lies. I've tried getting into recovery mode with the button combination, but the phone won't get into it. There is no turning off the phone, because it requires password to do so. I've tried everything, vol up+power, vol down+power, vol down+power and when the screen turned off switch to vol up+power, and repeat them all in case I didn't time it right. The phone just won't boot into recovery. Also, it won't goes into download mode as well.
So, was it the phone's security that was blocking me, or I just haven't tried everything yet. Spent half a day working on this phone, ended up nowhere.

Forced reboot is done by holding VOL DOWN + POWER for around 7 seconds. Once it's rebooting, hold VOL UP + VOL DOWN and plug usb. You have to do this when the phone is off and not yet vibrated when turning on.
I will try to find some way to help, but force reboot should work ALWAYS.

Erecik said:
Forced reboot is done by holding VOL DOWN + POWER for around 7 seconds. Once it's rebooting, hold VOL UP + VOL DOWN and plug usb. You have to do this when the phone is off and not yet vibrated when turning on.
I will try to find some way to help, but force reboot should work ALWAYS.
Click to expand...
Click to collapse
Force reboot does worked, every single time. But it just won't reboot into recovery. Thats the problem. Can't reset the phone without going into recovery. Or is there any other way?

funny..
after viewing your post, i tried to boot to recovery,
and i CANNOT..
nothing works..
volume up + power, phone is just rebooted
volume down + power, phone is just rebooted
volume up + volume down + power, phone is just rebooted
"and.. this is a problem"

JEDAlive said:
Force reboot does worked, every single time. But it just won't reboot into recovery. Thats the problem. Can't reset the phone without going into recovery. Or is there any other way?
Click to expand...
Click to collapse
it is hard to know if developer options with usb debugging is enabled on your phone..
but u can try adb commands..
just Google & try..
or take your phone to service centre..

nileshwarale said:
it is hard to know if developer options with usb debugging is enabled on your phone..
but u can try adb commands..
just Google & try..
or take your phone to service centre..
Click to expand...
Click to collapse
Its off alright, tried checking it with command prompt and nothing shows up.
I always leave service centre as the last resort.

,.... There is "a phone". .... And the owner " does not remember the password"....
These things make my alarmbell go off.
I don't say you stole this phone or anything, but I am not going to teach you how to unlock safety on a phone because there is a good reason that safety feature is there.
Contact a service centre and good luck.

andreoide said:
,.... There is "a phone". .... And the owner " does not remember the password"....
These things make my alarmbell go off.
I don't say you stole this phone or anything, but I am not going to teach you how to unlock safety on a phone because there is a good reason that safety feature is there.
Contact a service centre and good luck.
Click to expand...
Click to collapse
Oh come on, there is not a single thief in this world that will lose time to check forums and waste hours like the colleague above or me ,trying to fix a phone ! All with gsm repair services had stolen phones in their hands for sure ! If one customer comes and says give me *lets say half the price for a s9* for a s9 , you wouldnt give them the money and buy the phone? of course you would ! We are all humans trying to make a living. Extremely few people would hold back and ask questions ! And sometimes , when buying phones, you can get some that are stolen, can`t catch the thief, can`t recover your money ,unless you remove frp, bypass security, remove icloud , thats just the way things work ! no point in hiding behind a finger. You sometimes get rekt ! and buy stolen phones without even knowing, or willingly buying, because if not, the competitor will buy it and ruin the market price for you ! Good luck to you all !

i need some help flashed wrong cm.bin model in my A750G device turn unresponsive blackscreen after force reboot from dl mode by pulling battery, this device was payjoy lock with pattern and could not get to recovery or anything, i found a way u can try at your own risk, but i need some help with my bricked a750g, it show exynos7885 inside device manager constantly over and over if i hold power button the phone long vibrates. any help ??

Related

no need to take battery out of phone .

Ive noticed lots of people taking their battery out of their precious sensations , to go into bootloader or that seemingly pointless SAFE MODE .
there is absolutely no need to do that !!
you can :
turn off "Fast Boot" under settings->power and the phone will power off.
OR if you like the fast boot use the restart option ,but remember it turns it on again, right away.
so restart the device and for bootloader just press VOL down , after its off.
and to go to that safe mode, wait for the phone to turn on again, and press VOL down
take care of your phones..
thanks Elvis_Freshly for your notes. you're right, we're cool.
Dandandroid said:
Ive noticed lots of people taking their battery out of their precious sensations , to go into bootloader or that seemingly pointless SAFE MODE .
there is absolutely no need to do that !!
so lets make it clear for those who missed it:
-the power off is like hibernation in windows, it doesnt really shuts your phone off.
-the restart option does, but it turns it on again, right away.
so restart the device:
for bootloader just press VOL down , after its off.
and to go to that safe mode, wait for the phone to turn on again, and press VOL down
take care of your phones..
Click to expand...
Click to collapse
Actually all they have to do is turn off "Fast Boot" and the phone will power off.
Fast boot is what causes the phone to "sleep".
There is no need for bolding your post, as your information is semi-inaccurate in itself.
I know you meant to be helpful but it came across as rude and like they're stupid.
but its crazy to take the battery out every time, and people are doing it.

[Issue] Lumia 1020 Doesnt turn on after softreset

Hi guys!
I have a problem...
I bought my lumia 1020 on dec/25... two days later i was using the GoPro app and my phone frezon.
I did a soft reset but then... it doesnt turn on any more.
I Tried all combinations seen in the internet about soft/hard reset, all buttons pressed but nothing. Plugged in pc... it doesnt even point somenthing in USB.
Today, I plugged in USB and noticed that the middle windows light was on for a period... tried again the buttons procedure but nothing...
I´m from brazil and a friend brought it to me from England so... I dont know if i sent it to Nokia will do...
Plz, does anybody knows what I can do?
Thx!
k1t4r0 said:
Hi guys!
I have a problem...
I bought my lumia 1020 on dec/25... two days later i was using the GoPro app and my phone frezon.
I did a soft reset but then... it doesnt turn on any more.
I Tried all combinations seen in the internet about soft/hard reset, all buttons pressed but nothing. Plugged in pc... it doesnt even point somenthing in USB.
Today, I plugged in USB and noticed that the middle windows light was on for a period... tried again the buttons procedure but nothing...
I´m from brazil and a friend brought it to me from England so... I dont know if i sent it to Nokia will do...
Plz, does anybody knows what I can do?
Thx!
Click to expand...
Click to collapse
All these descriptions assumes your phone is turned off. (hold down power to power off device)
Holding down volume down when you power up the device should boot into a recovery menu, if not,
Try holding Down [Volume Down] + [Power ] until The Phone vibrates (This may take a little while, keep holding)
If it vibrates but still doesn't work, hold down until you feel it vibrate twice. (this will factory reset the phone, so you'll lose everything)
One last thing you can try is hold down volume down, power on the device and connect the charger. Keep holding volume down until you see an exclamation mark. Then press the following combination of buttons:
Volume up, volume down, power, volume down. This will also factory reset the device.
(this point may void warranty if not careful)
If you feel brave, you could look into using ADB to connect and launch the recovery menu if all else fails, but it can get a bit technical, and my advice is that you should have some experience with adv or flashing or similar. Google and read guides for it and decide for yourself, but remember, its better to wait for a repair on warranty than trying to fix it yourself at the risk of voiding warranty. (also, you usually get 3months warranty on the repair.
Hope this helps
Changis said:
All these descriptions assumes your phone is turned off. (hold down power to power off device)
Holding down volume down when you power up the device should boot into a recovery menu, if not,
Try holding Down [Volume Down] + [Power ] until The Phone vibrates (This may take a little while, keep holding)
If it vibrates but still doesn't work, hold down until you feel it vibrate twice. (this will factory reset the phone, so you'll lose everything)
One last thing you can try is hold down volume down, power on the device and connect the charger. Keep holding volume down until you see an exclamation mark. Then press the following combination of buttons:
Volume up, volume down, power, volume down. This will also factory reset the device.
(this point may void warranty if not careful)
If you feel brave, you could look into using ADB to connect and launch the recovery menu if all else fails, but it can get a bit technical, and my advice is that you should have some experience with adv or flashing or similar. Google and read guides for it and decide for yourself, but remember, its better to wait for a repair on warranty than trying to fix it yourself at the risk of voiding warranty. (also, you usually get 3months warranty on the repair.
Hope this helps
Click to expand...
Click to collapse
Changis,
Hi and thx 4 the answear but the logic board was dead
Have to change it...
k1t4r0 said:
Changis,
Hi and thx 4 the answear but the logic board was dead
Have to change it...
Click to expand...
Click to collapse
Admins... could close the topic?
Thx
me too had the same issue
me too
i have the same issue with my lumia 1020
i connect it to change at night but on morning if found it dead "Not starting , Not charging" and also failed to force restart it
i bring it to my local nokia partner but they say that there is no replacement parts available for it so they refused to accept its maintenance
i don't know what i can do for it

Nexus 5 - Hardbrick ?

Hey guys,
I need some urgent help.
My Nexus 5 device is not booting. It stucks at the bootlogo then powers off and restarts again.
Normally it wouldnt be hard to fix such an issue but the problem is :
I can't boot into bootloader (bootloader appears for 1 second then phone powers off)
I can't boot into Recovery mode (Recoverymode appears for a second then phone powers off)
I can't get my phone into fastboot mode, - it appears for a few seconds durign the bootloop as an "unknown device", but I am not able to flash a new bootloader/factoryimage.
I tried like every possible option what I can do, but nothign worked for me.
What else can I try since I can' get my phone into fastbootmode?
Bootloader is unlocked
Secureboot is enabled
(from what i can see in these 2 seconds where the bootlaoder pop's up)
Is there a way to recover my nexus5?
Symptoms of broken starter button
Posté depuis Nexus 5 / Miui7 by Miui-France
Remove the motherboard and clean around the power button. When you have cleaned around the power button, quickly press and release the power button using more pressure than normal a few times, try to boot again.
Thanks for the tips!
I never thought that a broken Button could cause this issue.
I will check it as soon as I am home.
But how am I supposed to clean the motherboard, and I don't understand how cleaning the button from the outside
of the case should help to solve this problem.
Can you guys explain it a bit more detailed please? ^^
Are there good and very detailed tutorials for this?
And yes, you ideas definitely make sense because some days earlier when the Nexus5 was still
booting fine, I remember that I sometimes had the issue when I turned of the display with the power button
it instantly turned on again and I had to turn it off like 3-5 times until it really was off (standby).
To clean around the power button, you'll have to disassemble the phone which is not hard to do it you take your time and use the right tools.
https://www.ifixit.com/Teardown/Nexus+5+Teardown/19016
I noticed that the issue really was the powerbutton, - however the button was broken and
not repairable by cleaning. To repair the phone I would have to purchase a new motherboard.
In the end I decieded to purchase another phone, just saying that if someone will have the same issue in the future
try to clean first, if that wont help the powerbutton is most likely broken, and this results in a new motherboard-purchase because
the button is not repaireable by hand
The power is replaceable if the damage is confined to the power button itself.

BSOD - Can't get safe or recovery mode either

Hi folks. I've got a problem that I don't see anything quite matching in here. I have a Straight Talk/Verizon GS7. Last night I installed an app do to USB tethering on it. It worked great for the testing. After I disconnected and it sat idle for a while, I heard a notification sound and the blue light started flashing. I push the home key and the "back" and "window" key lit up, but the screen is black.
So here's what I've tried so far.
I tried to hold the power button to turn the phone off. Nothing.
I can soft reset by holding volume down and power. I get the splash screens for GS7, Samsung and TracFone. Then BSOD.
I can't get safe mode. I can't get recovery mode.
I can get to download mode. "Volume down, home, power"
The phone has developer tools turned on and USB debugging is enabled. Is there a way to do anything helpful from download mode? I'm not too concerned about losing data, so flashing a new ROM is fine by me.
stageman said:
Hi folks. I've got a problem that I don't see anything quite matching in here. I have a Straight Talk/Verizon GS7. Last night I installed an app do to USB tethering on it. It worked great for the testing. After I disconnected and it sat idle for a while, I heard a notification sound and the blue light started flashing. I push the home key and the "back" and "window" key lit up, but the screen is black.
So here's what I've tried so far.
I tried to hold the power button to turn the phone off. Nothing.
I can soft reset by holding volume down and power. I get the splash screens for GS7, Samsung and TracFone. Then BSOD.
I can't get safe mode. I can't get recovery mode.
I can get to download mode. "Volume down, home, power"
The phone has developer tools turned on and USB debugging is enabled. Is there a way to do anything helpful from download mode? I'm not too concerned about losing data, so flashing a new ROM is fine by me.
Click to expand...
Click to collapse
hi
Seem like flashing a new firmware may be the reasonable option...
Try flashing first with home_csc if you know what your CSC is at the moment..that way you may avoid losing your data
if that option is off the table...then use CSC and flash/ format your phone...
for your reference check here
https://forum.xda-developers.com/galaxy-s7/how-to/official-stock-firmware-update-odin-t3369431
https://www.sammobile.com/forum/showthread.php?t=30800
Pay attention to step 6 if you use CSC
Thank you for the response. While I was downloading the ROM I came across "Vysor" and was able to use it to control the phone. Using it I was able to get the phone to power off and get into recovery mode. I wiped the cache partition and uninstalled the Tether app and all is good now. Now I just have to decide whether or not to cancel the RMA that Straight Talk is sending me...
stageman said:
Thank you for the response. While I was downloading the ROM I came across "Vysor" and was able to use it to control the phone. Using it I was able to get the phone to power off and get into recovery mode. I wiped the cache partition and uninstalled the Tether app and all is good now. Now I just have to decide whether or not to cancel the RMA that Straight Talk is sending me...
Click to expand...
Click to collapse
great to know you solved.
If you know what caused the problem and fix it , i would keep the phone you have , was new when you got it right?

Turn on android USB debugging while phone is off / unresponsive?

(TLDR: OnePlus5, power button not responding, volume buttons physically damaged, USB debugging not turned on, can connect phone via USB to PC, but nothing more. Want to turn on USB debugging to boot via ADB. Or boot any other way, if possible.)
Hello everyone,
Let me tell you the short story of the horrible mistake I made today. I was not able to put my phone to sleep using the power button, which seemed odd. I had dropped it before, so I got suspicious. At some point, I managed to long-press the power button and went: "Oh, looks like the button is working. Lets just restart the phone, I am sure it will all be fine again." ...
Oh, boy – was I wrong. After shutting down the phone, I was not able to restart the phone using the power button. It was not responding, just like before, when I couldn't put the phone to sleep. It was at this point that I noticed, that my volume buttons are physically damaged. By now probably everyone can imagine where this is going. The power button does not respond, the volume buttons – which I need to boot into recovery mode – are physically broken. So I am now sitting in front of a black screen. I am not even 100% certain that it is off.
I know how to use ADB. However, not if USB debugging is not turned on. I never did this on my private phone, as I had no use for USB debugging. I did turn on developer options at some point, but I never turned on USB debugging. The phone does get recognized by my PC, but not by ADB.
So here I am. The phone was working fine before I shut it off and I would like to at least turn it on to see what can be done from there. I am somewhat confident I would be able to boot it with ADB, but it seems there is no chance to do that, because USB debugging was never turned on.
Does anyone have an idea how to go about fixing this issue? As a last resort, I thought about visiting a repair shop, to see if the power button could be circumvented after removing the phone's shell. But are there any other suggestions, before I dump €50 to pay someone that has the tools to open up the phone?
Cheers,
Bunny
Take it to authorized service center and let them try to fix it.
BTW:
IMO the 1st thing of all things every user should do when he gets a new phone is to immediately enable USB debugging ( aka ADB ) this because ADB is the door to phone's Android. And the best part: it costs nothing.
jwoegerbauer said:
Take it to authorized service center and let them try to fix it.
BTW:
IMO the 1st thing of all things every user should do when he gets a new phone is to immediately enable USB debugging ( aka ADB ) this because ADB is the door to phone's Android. And the best part: it costs nothing.
Click to expand...
Click to collapse
I probably wont spend the money on a repair shop. The screen is broken at multiple points. Who knows what is gonna happen when they open that thing up. I bought a very cheap temporary replacement and on the lookout for new options. Lesson learned. Turn on USB debugging – always.
A bunch of us here are pretty good navigating with with either a broken screen or broken buttons, but with both that's a challenge.
Some have even managed to enable ADB and authorization in the OS from TWRP.
If you already bought a replacement I'd open it up and see if you can get the buttons working again.
OnePlus 5 Volume and Power Button Replacement
SMcC2 said:
Some have even managed to enable ADB and authorization in the OS from TWRP.
Click to expand...
Click to collapse
Yes, it's easy to apply:
Android - Enable ADB from recovery
Android - Enable ADB from recovery. GitHub Gist: instantly share code, notes, and snippets.
gist.github.com
SMcC2 said:
A bunch of us here are pretty good navigating with with either a broken screen or broken buttons, but with both that's a challenge.
Some have even managed to enable ADB and authorization in the OS from TWRP.
If you already bought a replacement I'd open it up and see if you can get the buttons working again.
OnePlus 5 Volume and Power Button Replacement
Click to expand...
Click to collapse
jwoegerbauer said:
Yes, it's easy to apply:
Android - Enable ADB from recovery
Android - Enable ADB from recovery. GitHub Gist: instantly share code, notes, and snippets.
gist.github.com
Click to expand...
Click to collapse
After letting the power drain from the phone, I noticed that the power button is not actually malfunctioning. When I try to turn it on, I *do* get the message, that power is too low. The volume buttons are definitely physically beyond repair (would need to exchange), but the power button still works (as it looks like). So I can "turn on" the phone, but it does not boot correctly. (?) Does this new information tell us anything? I guess the biggest problem is that I can't make it into recovery mode without the volume buttons? I have tinkered around with the iFixit Toolkit in the past. I am not sure if I want to spend that time (and money, since I don't have the toolkit anymore).
Charge your phone for at least 30 minutes before trying to restart.
Charge your phone for at least 30 minutes before trying to restart.
jwoegerbauer said:
Charge your phone for at least 30 minutes before trying to restart.
Click to expand...
Click to collapse
Yes, I did that. But it does not start. What I meant was: The fact that power button returns the "too low battery"-message, when the battery is empty, means that the button itself is not broken. I charged it overnight, but the phone remains in black-screen (and does not trigger the usual "vibration" upon turning on). So my conclusion is, that the button is working, but the still does not boot correctly.
AFAIK a phone only starts Android OS if its battery charge level is >= 5%.
jwoegerbauer said:
AFAIK a phone only starts Android OS if its battery charge level is >= 5%.
Click to expand...
Click to collapse
Alright, but what does this tell me? The error message appears when I let the battery drain purposefully. The OS still does not start after charging overnight (without any error message, just black screen).
Battery might be defective.
jwoegerbauer said:
Battery might be defective.
Click to expand...
Click to collapse
This...
Or a board may be damaged, etc...
If you think the power button is working have you tried holding it down for 30 seconds to see if the phone will reboot, or vibrate, or anything?
jwoegerbauer said:
Battery might be defective.
Click to expand...
Click to collapse
SMcC2 said:
This...
Or a board may be damaged, etc...
If you think the power button is working have you tried holding it down for 30 seconds to see if the phone will reboot, or vibrate, or anything?
Click to expand...
Click to collapse
Yup, I have tried holding down the button for minutes. Also, I believe the phone is charging. After leaving it connected over night, I need to wait approx. a full battery cycle to produce the "battery too low"-message again. The only thing the power button allows me to do, is produce the "battery too low"-message.
I guess the damage is more severe than I initially thought. I already bought a cheap, temporary replacement. I think I won't pursue this issue further. I guess I could try to flash it, but without recovery mode (no volume buttons) or USB debugging that sounds like quite an undertaking.
Thank you two for trying to help out!
Cheers,
Bunny

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