[SM-A500FU] Remove forgoten lock pattern - Galaxy A3, A5, A7, A8, A9 Q&A, Help & Troubleshoot

Hello everyone,
I have a SM-A500FU in which about 2 years ago I broken a display. So after that I just put Samsung on shelf and bought another phone. But now I would like to use this Samsung again. I bought a new display assy for this phone and after I connected a new display and turned phone on lock pattern screen appears. I tried every single pattern I can imagine, but non of them worked. I just cant remember what pattern i've set. So I thought that I will just go to recovery and perform a factory reset. But vol up + home + power buttons combinations simply won't work - phone is turning on normally. Same with download mode. ADB method wont work either, becouse I didn't enable debuging mode when I was using this phone few years ago. I checked vol up and vol down buttons, they working. But I'm not sure about home button, becouse on lock screen there is no option to chceck whether it works. Or maybe I'm wrong and there is an option?
What other options do I have to get into recovery and unlock this #%^# phone? Why simple things, like just enter recovery mode, have to be so painful ?
Thanks in advance for any tip.

Related

Power button problem

Hi all,
I have accident on sea where one wave splashed a bag where my phone was. After small problems with "laggy" buttons everything went fine and my phone worked correctly except power button. It doesn't react. I couldn't even restart the phone. And when my battery was used I coudnt turn it on. I tried to press volume up + power button million times, or all 4 buttons, and somehow I manage to turn it on again while still I was on vacation. Few times I have entered Android recovery screen, and Power button worked perfectly there (I managed to press power button and select reboot device). And after the phone turn on power button would usually works few minutes and then it would died again.
I have installed software for simulation of power button and it worked ok. This morning somehow I decided to turn off my phone, and I couldn't even imagine what kind of problems I will have to turn it on again. Whole day I am trying to turn it on, but it doesn't react. When I pull in charger then it shows regularly battery status (70%). I am desperate :crying:
I am trying to google or find any solution how to bring it ON again without power button, but without success
Is there any way how could I turn Samsung galaxy S6 Edge Plus without power button?
And what you think, is this some kind of software problem, and maybe some factory reset or flashing might help? Or it is more likely hardware problem?
Many thanks in advance.
Can anyone help me?
I have just found this article which might help me:
How to turn ON Galaxy S6 without using the power button:
When the Galaxy S6 or Galaxy S6 Edge is turned off, press and hold the volume button for a few seconds.
While holding the volume button, connect the Galaxy to a computer using a USB cable.
Wait for your phone to boot to Download mode.
Then press down on the volume rocker to cancel the operation.
After the operation has canceled, the Galaxy will reboot and turn on.
You have successfully turned on the Galaxy S6 without using the power button.
source: http://recomhub.com/blog/how-to-turn-on-and-off-galaxy-s6-without-power-button/
But somehow this doesn't work for my phone? First I wasnt sure which volume button should be pressed, so I tried with both in all combinations and still cant get into Download mode.
But I am glad that samsung had created some workaround if power button is not working. THis used to work on older models I guess.
Is there anyone who might know the way how to turn on phone without power button?

Samsung Sm- J120H aka Galaxy J1 (2016) LCD problem

Hello, I hope this is the right forum for my question, sorry if I made a mistake. Anyway, my uncle bought this phone month ago in another country, everything worked fine until yesterday when LCD stopped working. After some time of trying to fix it, we concluded that if you press volume (up, down or both at the same time) button and then the power button, screen turns on and works for some time (couple minutes) but then goes black again. If you just press power button (without pressing volume button) it stays black but you can still hear it unlocks when you slide your finger across the screen, so touch screen works, phone works but LCD is black. I am guessing it's loosing connection but how does it turn on every time when I press volume button? It's very confusing. Phone was in a protective case since first day and it hasn't been dropped. Since it's bought in another country, it would cost more to return it there than to buy new one, so do you have any ideas? I have been replacing lcd screens for my friends last two years so I was thinking maybe I can disassemble it and check connections. Any help? sorry for my bad english
Luka keko said:
Hello, I hope this is the right forum for my question, sorry if I made a mistake. Anyway, my uncle bought this phone month ago in another country, everything worked fine until yesterday when LCD stopped working. After some time of trying to fix it, we concluded that if you press volume (up, down or both at the same time) button and then the power button, screen turns on and works for some time (couple minutes) but then goes black again. If you just press power button (without pressing volume button) it stays black but you can still hear it unlocks when you slide your finger across the screen, so touch screen works, phone works but LCD is black. I am guessing it's loosing connection but how does it turn on every time when I press volume button? It's very confusing. Phone was in a protective case since first day and it hasn't been dropped. Since it's bought in another country, it would cost more to return it there than to buy new one, so do you have any ideas? I have been replacing lcd screens for my friends last two years so I was thinking maybe I can disassemble it and check connections. Any help? sorry for my bad english
Click to expand...
Click to collapse
Hello there, I'm from Brazil, as my english may not be the best lol... So I have same phone as you and similar problem... The problem is that volume down doesn't work. Other buttons work fine though. Also, the phone always enters in safe mode, so I assumed the volume down button is being pressed all the time. Except that, I realized that I could enter in download mode (I tested, if I don't press volume down in the combo 'power button + home + volume down' it won't get into download) and if I press volume down to cancel it will actually cancel and restart the phone. So the button is working... Here is the part where I think the problem is similar. There was a time I turned the phone off, through the system as we normally do, and then it wouldn't turn on again. I realized it was actually turning on, but the screen was black. I tried entering download mode and tested on odin and it actually had entered download mode, but the screen was black... Then after several attempts it finally got back on again... So I think there is something related with the button circuit with the lcd, I don't know. I would like to know if you got to any solution there. I guess that instead of bringing you any solution I'm bringing another problem lol. Well if I have any other information I will post it here. Best wishes.

screen wake test anyone?

Hello everyone here,
I just run into trouble - a power button on my Galaxy J5 failed. Few days ago home button failed too.
Device is still on and running, so I need a quick check for not locking myself out.
1) after phone was locked - can volume keys wake the screen? (so I can enter e.g. an unlock pattern)
2) does J5 require to press power or home button to turn it on (e.g. after power down)
3) does J5 require to press power or home button to wake screen after it is restarted?
also, if anyone would like to suggest...
4) how can I access restart menu? or just restart the device?
5) any other issues I can run into?
6) can the be a software issue?
7) can a non-affiliated repair shop get this easily fixed or would they probably make things worse?
any advice is welcome!
phone is not rooted. Lock screen security (pattern) is now deactivated.
Model SM-J510FN, J510FNXWUAQG1, Android 6.0.1,
thanks!
Plug in charging, if it wakes up its working!!
thanks for feedback!
yes, it is working I installed Gravity Screen app and it seems to be doing fine with turning screen on and off.
The only question left is what to expect if the battery should run off one day or I'll need to reboot the phone or take out the battery... I am afraid it expects pressing power button to start booting, but its not working... any ideas?
hovaz said:
Hello everyone here,
I just run into trouble - a power button on my Galaxy J5 failed. Few days ago home button failed too.
Device is still on and running, so I need a quick check for not locking myself out.
1) after phone was locked - can volume keys wake the screen? (so I can enter e.g. an unlock pattern)
2) does J5 require to press power or home button to turn it on (e.g. after power down)
3) does J5 require to press power or home button to wake screen after it is restarted?
also, if anyone would like to suggest...
4) how can I access restart menu? or just restart the device?
5) any other issues I can run into?
6) can the be a software issue?
7) can a non-affiliated repair shop get this easily fixed or would they probably make things worse?
any advice is welcome!
phone is not rooted. Lock screen security (pattern) is now deactivated.
Model SM-J510FN, J510FNXWUAQG1, Android 6.0.1,
thanks!
Click to expand...
Click to collapse
I dunno but tapping on home button wakes the screen..
hovaz said:
thanks for feedback!
yes, it is working I installed Gravity Screen app and it seems to be doing fine with turning screen on and off.
The only question left is what to expect if the battery should run off one day or I'll need to reboot the phone or take out the battery... I am afraid it expects pressing power button to start booting, but its not working... any ideas?
Click to expand...
Click to collapse
Yep.. Then you'll have to take it to the service centre, that's the only solution I can think of.. :silly:
today the power button misteriously started to act again. I'll stick to Gravity app for waking the screen and hope the button will work in rare cases when needed after powerdown....
thanks everyone for suggestions!

Hard brick - no screen (or home button) - Possible to fix?

So my sister managed to destroy the screen on her J5 (J500FN) and we sent it in for servicing, but they said there was a "software problem". But according to some research i did it somehow got hard bricked. I'm assuming it's something they did as the phone was fully functional (software wise) before going in for a screen replacement.
So i'm wondering, is it possible to restore the software to working condition without a screen (which also means i don't have a home button)? My computer sees it as "Qualcomm HS-USB QDLoader9008" and adb doesn't recognize it at all.
Does Odin mode boot?
No idea. With no screen all i could do was try to blind boot it (home button works even though there isn't an actual screen and an actual button on it) by pressing volume down + home + power and then i pressed volume up in case it needed confirmation. Needless to say odin had no reaction whatsoever.
EDIT: Oh yeah, forgot to mention, the phone doesn't vibrate when i press and hold the power button at all, and as far as i remember, most modern phones do that when being turned on.

[Q] I've done something stupid. How to reset with no pin?

Last week I set up a Tab A 10.1 (T515) and have misplaced the pin I used.
I turned it on, realised I don't have the PIN and now I can't turn the thing off without that pin. Power + Volume reboots but won't get into recovery.
Does anyone have any ideas before I go and buy another tablet?
Many thanks in advance.
SOLVED: Volume down + power and as soon as the screen goes black, hit volume up.

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