How to repair partly bricked device - Redmi 7A Questions & Answers

Hello, my girlfriend uses this phone. Even I told her it is not good, she often uses it with battery charged to barely few % and sometimes the phone due to battery is low is turned off. Sudenly a recovery screen appeared. I did wipe data. But it probably does not work because when the device is turn on her own photo is still on background. There is possible only to go into settings but only to several options, unfortunately developer settings does not work even "I am a developer" (by clicking on the MIUI version several times). The bootloader is locked and there is not possible to login into MI account (and even she did not use it). Fastboot mode work, but due to locked bootloader I am not able to flash anything. Is there a chance to repair the phone? Thank you in advance.

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How to disable "power off" if the phone is locked?

My Gnex was stolen a few months before I got my N4, and although I tried to track it the thief was "clever" and simply turned the phone off. I think he then took the SIM out before turning it back on, so that even when powered up it never connected to the network and he had time to wipe/sell/use my device. The biggest lesson I learned was to lock my phone, and so my N4 has a PIN code. However, I was thinking that a thief could still do the same thing if this one is ever misplaced and I would be screwed. Is there a way to prevent someone from shutting down the phone without unlocking the device? At least this way you would be able to track it or install tracking software until the battery dies.
webmaster said:
My Gnex was stolen a few months before I got my N4, and although I tried to track it the thief was "clever" and simply turned the phone off. I think he then took the SIM out before turning it back on, so that even when powered up it never connected to the network and he had time to wipe/sell/use my device. The biggest lesson I learned was to lock my phone, and so my N4 has a PIN code. However, I was thinking that a thief could still do the same thing if this one is ever misplaced and I would be screwed. Is there a way to prevent someone from shutting down the phone without unlocking the device? At least this way you would be able to track it or install tracking software until the battery dies.
Click to expand...
Click to collapse
I have Avast! installed on mine and when I changed out the Sim at the store the other day, the phone freaked out and sent me text messages (to my backup phone number) of the location and the new phone number. I'm about 90 percent sure that some of the other settings in the app lock the ability to wipe the phone... but I'm new to this Android thing and I could be wrong (workaround via fastboot?).
Anyway, if this is the case, Avast should calm your fears... plus its free.
What if the other person simply turns the phone off?
theres nothing you can do after they turn it off they will just restore the device, even if your carrier blocks your imei number, they can just use the phone in another country ,you can only protect your information on the device
If you have a rooted device you can install Cerberus as a system app, so it will survive to wipe. But disable power off is impossible.
I realize it is impossible to disable power off (for good reason!), however there should be a way to disable it when the phone is locked. In fact, I cant think of a single reason the phone SHOULD allow you to power it down while it is locked.
webmaster said:
I realize it is impossible to disable power off (for good reason!), however there should be a way to disable it when the phone is locked. In fact, I cant think of a single reason the phone SHOULD allow you to power it down while it is locked.
Click to expand...
Click to collapse
A single reason?
You turn your phone screen on. It randomly locks up and not responding.
Oh no what do I do now?! I can't pull my battery!!!!!!
Long press hold for 10 seconds. Phone turns off.
Long press is encoded within the phone and can't be disabled, it's down to the bootloaderish level.

Odd Behavior on Boot

I have a stock unrooted Verizon Galaxy S5. For several months my phone has been plagued by several issues at startup. Whether I reboot the phone or start it up after the battery has died, it always enters an odd state immediately after loading and seems to get stuck in this state for an undetermined and variable amount of time (anywhere from a few seconds or minutes to hours or even overnight).
While in this state, this is what happens:
1. Screen stays on. Once I unlock the phone, the screen stays on. The side button doesn't do anything to lock the phone or turn off the screen. Holding down the button, however, still triggers the power menu. The screen timeout never triggers, even though it should turn off the screen after 2 minutes of inactivity.
2. WiFi and Bluetooth turned off. Even if they were turned on before I powered down the phone, they are not enabled when the phone first boots up. I can manually turn them on but the WiFi will not connect to a network, even if one is available. It may show it is connecting to the network, but it gets stuck at "Checking the quality of your internet connection" and continues to use the 4G network for data connectivity. This happens no matter what WiFi network I am within range of, so it's not an issue with the network or router itself. If I am not near a network at all I will still experience the other problems of not being able to lock the phone, etc.
3. Startup applications don't load. I have Tasker on my phone, but it doesn't load and show it's notification bar icon.
Otherwise, I can use the phone normally and open applications, surf the web, etc. It seems that loading some applications and using the phone eventually causes the phone to exit this mode, but I haven't been able to find a single particular application or series of steps to fix the problem. If I power on the phone and don't use it that just seems to make it take even longer to fix itself.
Once it gets out of it's weird state, the WiFi connection will become active (it will turn on WiFi if I haven't done so manually already) and it will connect to a known network if one is available, the phone will lock itself or I can do so from the side button, and things like Tasker and Power Save mode will turn on.
I am stumped as to what could be causing this problem or how to fix it. It seems the phone may be doing some kind of check, maybe related to Knox, that hangs during startup and prevents certain things from working until it straightens itself out.
Any clues into what this problem is, what is causing it or how I could further analyze this problem and determine its cause would be greatly appreciated.
Never heard of or experienced these issues. May want to contact Samsung.
Have you installed any official updates from Verizon at any point? I've heard of phones having phantom problems like this after receiving a bad update. I would definitely contact Verizon if you did update at any point. If not then like BigBot96 said, contact Samsung about the problem.
My wife's Note 2 did something similar when the battery died. I had to factory reset. Her phone was rooted/unlocked & running a custom TW ROM, though. May I suggest doing a complete factory reset and Odin. Backup data to computer or external sdcard since this will clear the entire device.
Edit: After rereading OP's post it actually sounds like an app is hanging at startup which could cause this behavior. A logcat should tell you what's going on.
Sent from my SM-G900V using Tapatalk

[Q] Note 3 N9005 - LTE - No Display

few days ago during phone calls the screen started to black out - after 1 hoursof first blackout, screen started to show weird behavior, screen was being touched on random areas - i turned on show touches from dev mode and it showed random multi touches on top right corner of scree. after few minutes the screen turned black and since then i havent seen any sort of display on my note 3. i tried.
1. removed battery - let it rest for 15 minutes - connected back - phone turned on fine i could hear all sounds and notifications even receive calls if i swiped at correct screen area, However no display
2. tried to access the phone in adb but it wont show in devices even though usb debugging is enabled and all samsung drivers are correctly configured.
3. made backup of all the files on phone using kies.
4. Rooted the phone and tried to access recovery mode but vol up + home + power just turns on the phone.
5. currently the phone connects to pc as a media device with usb debugging enabled.
i think if i am able to flash firmware again it might resolve the issue, but so far i haven't been able to find latest stock builds that i can flash using odin since i cannot do anything in recovery mode (no display)
Can someone guide me on how i can get the display back ? is there any way to access the screen using a standalone pc app without the need to install any app on the phone ? can it be hardware related issue ? the phone never dropped, im a very careful user. screen is scratchless and phone is in perfect condition physically. Any help or guidance will be appreciated.
PS. Its my first time posting a thread on a forum, i hope i didnt break any rules. I searched alot on forums for someone having similar situation.
samdada47 said:
few days ago during phone calls the screen started to black out - after 1 hoursof first blackout, screen started to show weird behavior, screen was being touched on random areas - i turned on show touches from dev mode and it showed random multi touches on top right corner of scree. after few minutes the screen turned black and since then i havent seen any sort of display on my note 3. i tried.
1. removed battery - let it rest for 15 minutes - connected back - phone turned on fine i could hear all sounds and notifications even receive calls if i swiped at correct screen area, However no display
2. tried to access the phone in adb but it wont show in devices even though usb debugging is enabled and all samsung drivers are correctly configured.
3. made backup of all the files on phone using kies.
4. Rooted the phone and tried to access recovery mode but vol up + home + power just turns on the phone.
5. currently the phone connects to pc as a media device with usb debugging enabled.
i think if i am able to flash firmware again it might resolve the issue, but so far i haven't been able to find latest stock builds that i can flash using odin since i cannot do anything in recovery mode (no display)
Can someone guide me on how i can get the display back ? is there any way to access the screen using a standalone pc app without the need to install any app on the phone ? can it be hardware related issue ? the phone never dropped, im a very careful user. screen is scratchless and phone is in perfect condition physically. Any help or guidance will be appreciated.
PS. Its my first time posting a thread on a forum, i hope i didnt break any rules. I searched alot on forums for someone having similar situation.
Click to expand...
Click to collapse
2. To access via adb you have to grant the permission, once you connect phone in adb with developer mode (usb debugging) enabled, a pop-up will come asking for granting permission., once you grant then only you can acces it in adb mode.
*Sorry buddy, i don'y know about any app that can "access the screen using a standalone pc". (Google for it, You may found)
I guess it must be hardware issues,
But you can try out this:
Download the latest firmware from SamMobile or from SamsungUpdates website, and flash using ODIN.
Before downloading firmware make sure you download the correct firmware for your region (CSC)
If didn't worked, it must be a hardware issue.
Sorry.
Phone was in usb debugging mode before screen disappeared, now i cannot see the device in adb mode maybe because i need to change the connection mode to mtp, i cant do that , theres no display :S

S7 Edge Lock Screen issue, wont unlock

I bought two Galaxy S7 Edge phones recently and have noticed this issue on both phones now. Both are also updated to the latest firmware. Both of us have fingerprints set up and a pattern backup. So far, the issue has occurred to us both twice. I happen to always use my fingerprint to unlock and she always uses pattern out of habit from a past phone. She brought it to me a couple of days ago and said her phone says to wait 60 minutes and try again. I asked how many times she entered it wrong, because of course I thought she entered it wrong. She said she didn't enter it incorrectly. I asked if she tried to reboot, of course not. Anyways, I held on to it and after 60 minutes I entered the pattern to unlock her phone and sure enough it wouldn't work. I rebooted, and tried again and it worked. OK...Weird.
The very next day, it happened on my phone. I always use my fingerprint though so it told me no match found. Say what? Tried again. Same thing. OK, swipe and tried my pattern. It says its incorrect and to try again in 30 seconds. 30 seconds later, I tried again and it locked me out for 60 seconds. This time I rebooted, and after it was done and 60 seconds had passed my pattern was working again.
I don't get why it randomly seems to not recognize that we are putting in the correct pattern or fingerprint. I am however happy that a reboot seems to resolve the issue. Is no one else experiencing this?
Mine doesn't lock instead!
So I tried couple of things. Rebooted, re-initialized Finger Prints and even pattern. Now matter what I do, it won't lock the phone. It will just unlock without asking for passcode, pattern, password or fingerprint. Only option I can think of is to restore the phone and try setting up lock option but that's pain in the a**!! I tried third party apps as to lock screen but none of them have the fingerprint unlock option! And some have ads and weird setup which worked... Gettting frustrating. Perhaps I should try restoring phone if there's no other option left
shunail said:
So I tried couple of things. Rebooted, re-initialized Finger Prints and even pattern. Now matter what I do, it won't lock the phone. It will just unlock without asking for passcode, pattern, password or fingerprint. Only option I can think of is to restore the phone and try setting up lock option but that's pain in the a**!! I tried third party apps as to lock screen but none of them have the fingerprint unlock option! And some have ads and weird setup which worked... Gettting frustrating. Perhaps I should try restoring phone if there's no other option left
Click to expand...
Click to collapse
Entirely different. I'm not sure this is actually an issue as much as it is probably settings. Go to settings, Lock screen and security, Secure lock settings. Check how long Lock automatically is set for (mine is for 5 seconds after the screen turns off automatically and that is set for 2 minutes.). Then turn on lock instantly with power key. Go to smart lock and see if that's being used. IF it is it would keep your phone unlocked when its connected via Bluetooth to a device you told it to trust, or when you are at a trusted place via google maps (such as home or work), or it could simply know your voice, or lastly if it senses that it is on your body (I don't get this one. Seems very insecure, like anyone could pick it up and it would just unlock.). Good luck!
Viper41086 said:
Entirely different. I'm not sure this is actually an issue as much as it is probably settings. Go to settings, Lock screen and security, Secure lock settings. Check how long Lock automatically is set for (mine is for 5 seconds after the screen turns off automatically and that is set for 2 minutes.). Then turn on lock instantly with power key. Go to smart lock and see if that's being used. IF it is it would keep your phone unlocked when its connected via Bluetooth to a device you told it to trust, or when you are at a trusted place via google maps (such as home or work), or it could simply know your voice, or lastly if it senses that it is on your body (I don't get this one. Seems very insecure, like anyone could pick it up and it would just unlock.). Good luck!
Click to expand...
Click to collapse
Forgot to mention, have done all of that. First I had it set Lock Automatically to immediately and tried 5 seconds, 15 seconds to all the 30 minutes, still won't lock (over night till I wok up in the morning)
Smart Lock:
Trusted Device are my car and my watch, but even with bluetooth disabled (just to give it a shot) it still doesn't lock.
Trusted Place: my home, but even with Location Service (GPS) turned off, still won't lock
On body Detection = Off
Trusted Voice = Off
Tried updating phone perhaps something may fix it, nothing.
Tried Security Policy updates and that says ... updated to latest version...
Been using Android since good old HTC Evo days and had no issue with my (last) Note 4 locking with fingerprint!! I love this phone really expect for this issue. Oh yes and another issue, gestures won't work also!!! Tried hand gestures for screenshot, nothing. Smart Stay doesn't work also!!!
Is something wrong with this phone perhaps??
shunail said:
Forgot to mention, have done all of that. First I had it set Lock Automatically to immediately and tried 5 seconds, 15 seconds to all the 30 minutes, still won't lock (over night till I wok up in the morning)
Smart Lock:
Trusted Device are my car and my watch, but even with bluetooth disabled (just to give it a shot) it still doesn't lock.
Trusted Place: my home, but even with Location Service (GPS) turned off, still won't lock
On body Detection = Off
Trusted Voice = Off
Tried updating phone perhaps something may fix it, nothing.
Tried Security Policy updates and that says ... updated to latest version...
Been using Android since good old HTC Evo days and had no issue with my (last) Note 4 locking with fingerprint!! I love this phone really expect for this issue. Oh yes and another issue, gestures won't work also!!! Tried hand gestures for screenshot, nothing. Smart Stay doesn't work also!!!
Is something wrong with this phone perhaps??
Click to expand...
Click to collapse
Hmm.. Have you tried turning off Smart lock all together? Otherwise, all I can think is to factory reset settings before you factory reset the phone.
Factory Settings Reset did it
Factory Settings Reset did it however gestures and smart stay are still issues!! Then I courage myself to do Factory Phone Reset and dang the issue with the gestures persists!!
Bump.
No one else is having this issue? I just happened to be the only one with two new phones that do it?
This literally just happened to me! I was walking to a friend's house and was using the phone just fine - was using Facebook Messenger and Spotify. All of a sudden, I try to unlock it (I have a pattern to draw, not a code) and it doesn't work. I have no idea what's going on but I don't want to factory reset and lose all my contacts and pictures. I only have four tries left to unlock it before it automatically resets itself. I've tried using the Android Device Manager to set a temporary password but since there's already a pattern to draw it won't bypass the lock screen for some reason. I never thought to check the security settings on my phone (why would I if I had a lock screen on it?) so I can't use the Samsung equivalent either. I'm extremely frustrated - been looking for help for about an hour and I'm finding absolutely nothing. It's clearly been a problem before and yet there's no solutions or explanations as to why it's happening??
While I am still having this issue sparsely, I can get around it simply by rebooting. It's just annoying to have to do so.
It's anew feature of S7 called SMART LOCK, meaning your phone knows if you're in a safe place such as your Home, your Car or if you paired a smart watch with your phone and added it as trusted device, as long as you're connected to your watch, the phone knows you're in a safe place so you dont need to enter password to your phone. Or if youre in your car or at Home, then you wont need to enter password to open your phone. But if you want to remove this feature and want to swipe or enter your pin no matter where you are then do this..go to:
SETTING>LOCK SCREEN & SECURITY>SECURE LOCK SETTING>SMART LOCK. Here you'll see "Trusted Places" and "Trusted Device" Just edit or press and hold whatever is in there, e.i your watch, your home address etc...then remove and you should be good to go.
Have you tried turning off Smart lock all together? Otherwise, all I can think is to factory reset settings before you factory reset the phone.

Android 9 crash and restart after disabling airplane mode?

Hi,
have you ever experienced M1 crash/restart after disabling airplane mode on stock Android 9 (update 057 or 058)?
Breaking the rule "never change what's working fine", yesterday I installed the 057 and 058 OTA stock updates.
I have AccuBattery and Screen Lock, too.
After leaving the phone in airplane mode all night (as I usually do), the phone seems to have crashed and restarted shortly after I disabled the plane mode. The phone was locked, I tried to unlock with fingerprint, but the phone was unresponsive. After a couple of seconds, it showed the Asus splash screen and restarted. Very disturbing.
I might think of something involving the Screen Lock app. Android Pie does not seem to require the biometric unlock fix option, so I had not enabled it. Now I enabled it again to check if the problem repeats.
Thank you and best regards,
/_uke
I am sure that occurred at least another time!
After staying in airplane mode for several hours, the phone seems unable to connect to any cell (signal indicators remain empty), then it restarts by itself and I find it asking to enter the post-boot PIN.
Thank you and best regards,
/_uke

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