[Help] Phone crashes immediately after unlocking. - Redmi K20 / Xiaomi Mi 9T Questions & Answers

I recently destroyed my front glass by dropping my phone. I decided to repair it and while im at it also make the back glass clear as well as remove some of the plastic covers. However now as soon as i unlock the phone or the displays dimms out it crashes. Im running the stock MIUI and never had such problems before.
I've made a short video to show whats happening, but im not allowed to post a youtube link....
youtu(.)be/8sY4U2h9S0o just remove the parentheses from the link
While the logical conclusion would be that i broke something physical while working on the phone, i am suprised that it only crashes when unlocked.
I have not yet tried to wipe the phone data because i would like to avoid the extra works which comes with it.
If somebody has an idea what fix i could try please let me know because i am quit puzzled as to whats going on.
Thanks in advanced,
Jonas

I had the same issue in a custom rom (msm xtended) i fixed it by flashing a zip that removes your fingerprint and pin or schema (u can do it with twrp just follow this link)
https://forum.xda-developers.com/android/software-hacking/remove-lockscreen-recovery-t3530008
Oh and if u don't have a custom recovery the only way is to format data but i guess it wouldnt remove your lockscreen files and will keep asking for the same fp and pin

Related

[FIXED] black screen on hboot/recovery and camera issue (FIXED)

During an update, (PASSIMG.zip) in hboot I selected yes (to install) then about a second later, my screen
turned black and now, the only thing I can do is to boot in the installed stock rom (FRG33).
My english is not perfect, i'm sorry for that.
1. I Removed my battery after a while. (about 10 minutes)
2. Inserted the battery back in his place
3. Power down + vol down and I'm stock, I can navigate in
the menu but I can't see anything...
Anyone know how I can get my screen back ? OLED vs SLCD ?
Note: I can boot in my rom, the rom is unrooted, my phone is unlocked.
(And yes, I tried to flash recovery and another rom without success. And I can't
find a way to flash hboot again (bad signature)
I'm using the last version of hboot and radio.
If anyone have an idea of how I can fix this, this will be really appreciated.
Thanks.
I'm starting to think than my /dev/mtd/mtd0 is screwed up.
Anyone know where I can get/or generate a image of a normal mtd0 ?
At the moment I'm running debian sid dand SuperOneClick seem to freeze
after trying to chmod rageagainstthecage or psneu..
Note: Yes my screen work when the boot is completed. (but not in hboot/recovery)
bad spl ?
fblodroid
Ok, sorry for the noise, I was able to perform an update via 766a101ae02c.signed-passion-ota-60505.766a101a.zip (renamed to update.zip) and I powered off my phone.
Removed the battery to be sure there is no power at all.
and using some screenshot found on the web.
I was able to perform the update (blindly, this word exist ?) and the phone rebooted
and asked me if I want to update again (google update) I selected yes, the phone rebooted
and, VOILA, I can see again the crappy X logo with an open lock at the bottom.
Thanks again (ok for nothing, but if than can help some people...)
Yes, shame on my english again.
fblodroid
My guess is that you have an SLCD Nexus One, and the passimg installed the .33 HBOOT which doesn't work for them.
I had the same problem when flashing the MIUI-AU rom, screen went black,removed battery and replaced but the phone was dead,I was already thinking which phone to buy then when I connected the N1 to my laptop miraculously the X logo appeared and the rom launched ok
At the moment my phone is working again but I'm still having a camera issue.
About a 1 1/2 month ago I experienced this problem, no flash, no camera, just
a black screen when I try to run anything than use the camera.
Then a day, I was walking on the street and I checked to see if the flashlight was
working and obscured magic occured, the flash was working again but not the camera,
I wiped my phone again, repartitionned my SD card and installed a new rom and the
camera was back to normal.
Now, about a month later, (the problem started yesterday) i'm having the same issue.
I'm persuaded than this problem is related to a firmware problem, something related to
my /dev/mtd/mtd0 (hboot, perpaps ?) I don't know exactly where the camera firmware
is writed in the phone memory (nand)
I wiped and flashed again and again a lot of rom last night and today and the problem
still exist.
No camera/flash at all.
I'm thinking about returning the phone for warranty issue but like I said before, the
phone is unlocked... perpaps I will try to black the screen again and send the phone for
warranty... this way they cannot see (without fastboot) if the phone is locked or not.
If anyone have an idea of what I can do... a rom to recommend ?
Today I tryed to revert hboot without success...
EDIT: At the moment I'm running a rooted rom based on FRG83G.
fblodroid...
Related to my camera/flash problem:
Hum, I think I found the problem, this is hardware related, something seem to be
badly connected in the phone, I tryed too apply some force on the right border of the
phone with the flashlight ON (I previously looked on the web to see where the "contacts/plugs"
are located on the pcb (teardown pictures) and after applying some pressure, the light came ON
and now I can open and stop the "flashlight" mode.
teardown on the way ? I'm thinking about it... but i'll try to flash another rom again to see
if my camera is back.. (like in the past)
EDIT: No camera for the moment and the flashlight app light on the LED only if I select
the option "High Brightnes", ON/OFF are working with this option selected.
fblodroid
FIXED
After a complete teardown of my phone, and a lots of cigarettes..
I found two cables not correctly connected to her pin.
I made a picture, hum, an ugly picture of which cables.
http://img121.imageshack.us/i/icedqlubgg4zzbv2huge.jpg/ (in the red circles, the two pink dots)
And yep, now my camera/flash are working perfectly.
NOTE: the phone is not easily to dismantle, this is at your risk and peril. (time: about ~25 min)
Thanks again and please, ignore my english. I'm thinking about starting a thread
related to this problem. Should I ?
fblodroid
Hi, I have a HTC Desire GSM PVT4 (HTC__203), with the exact same issue as what is described in the original post. When I boot in hboot or recovery the screen is completely black. When I boot in the normal rom the screen works fine. I reflashed a number of RUU's successfully, but the problem remains.
The misc partition is not part of the RUU images, and I did re-flash the misc partition in an attempt to downgrade. Any idea where I can get an image for the misc partition for my device, or where I can generate one?
Thanks,
Hans
fblodroid said:
After a complete teardown of my phone, and a lots of cigarettes..
I found two cables not correctly connected to her pin.
I made a picture, hum, an ugly picture of which cables.
/link/
And yep, now my camera/flash are working perfectly.
NOTE: the phone is not easily to dismantle, this is at your risk and peril. (time: about ~25 min)
Thanks again and please, ignore my english. I'm thinking about starting a thread
related to this problem. Should I ?
fblodroid
Click to expand...
Click to collapse
Hey. I have the same issue you had with the camera, black screen and forced to close when running it. My flashlight works perfectly thoug.
I tried wiping and reflashing diferent ROMs, stock and Cyanogen with no luck. I also followed your lead and disassembled the phone to check all the connectors but the problem persists.
Any idea for me to try? Thanks for your posts anyway.
soylapinta said:
Hey. I have the same issue you had with the camera, black screen and forced to close when running it. My flashlight works perfectly thoug.
I tried wiping and reflashing diferent ROMs, stock and Cyanogen with no luck. I also followed your lead and disassembled the phone to check all the connectors but the problem persists.
Any idea for me to try? Thanks for your posts anyway.
Click to expand...
Click to collapse
Did you managed to fix it ? Be sure to check all the plugs, at best unplug everythings
and disassemble the phone entirely.
Mine is still working perfectly after two years.
fb

[Q] Two issues

Hello everyone!
I encountered two problems with my HD2 having installed Gingerbread 2.3.7 Nexus-HD. The first one; sometimes, I don't know sure why, and what causes this, but when I lock the phone and I try to unlock it( immediately, I didn't try to wait for longer) it doesn't unlock, but the display turns from dark(as locked) to a little bit grey, as if it would work, but I cannot see what I am doing.
The second one, sometimes, I think after I run a game, or something that requires more power and I press the HOME button, when I try to enter the Menu, it flashes continously.( as if it would change rapidly from Menu, to Home screen)
Where these problems might come from and what can I do in order to fix them ?
Really sounds like a hardware issue, try pressing the buttons hard and releasing a few times.
Did any liquid get on the phone ?
CruceruCalin said:
Hello everyone!
I encountered two problems with my HD2 having installed Gingerbread 2.3.7 Nexus-HD. The first one; sometimes, I don't know sure why, and what causes this, but when I lock the phone and I try to unlock it( immediately, I didn't try to wait for longer) it doesn't unlock, but the display turns from dark(as locked) to a little bit grey, as if it would work, but I cannot see what I am doing.
The second one, sometimes, I think after I run a game, or something that requires more power and I press the HOME button, when I try to enter the Menu, it flashes continously.( as if it would change rapidly from Menu, to Home screen)
Where these problems might come from and what can I do in order to fix them ?
Click to expand...
Click to collapse
Had alot of this issue on slow dying sdcard. My experience is your card have some problems. Try to check your card windows pc, start CMD and type- chkdsk (drive letter of sd card): /x /f or try to format your card with sdformatter pc freeware.
Sent from my HD2 using xda premium
You can try flashing the rom again. Before doing it, remeber to format your sd card. Try other roms too. If the problem persists in evry rom, then try a different sd card. after this the only problem will be your hardware.
Give a thanks if you found this Helpful
I don't think it is a hardware problem, beacause it worked all fine a few days ago, and the phone didn't took any damage in this time. I have this HD2 from a friend and when he gave it to me, I wanted to reinstall the ROM,bacause I wanted not to appear anymore his google account. I am a beginner in HTC and I installed this ROM following a tutorial, but I am not sure I did eveything all right. I wonder how I could erase everything and install a good,stable ROM from scratch, but I need an exact tutorial for this.
Meanwhile, those problem solved by themselves, but now I get the same freezing screen when I try to call or someone calls me. I can hear them, but it just freezes and I cannot do anything, unless I remove the battery. It doesn't happen all the time, but very often...
LE: Right now I'm trying another ROM, I installed a version of CWM of 150 mb( as requested by this ROM) and wiped everything and now it is installing hyperdroid CM7 v5.5.2.
I have to say that with the previous ROM I tried to remove the SD and the same error, so I thought that changing it may be a solution.
CruceruCalin said:
I don't think it is a hardware problem, beacause it worked all fine a few days ago, and the phone didn't took any damage in this time. I have this HD2 from a friend and when he gave it to me, I wanted to reinstall the ROM,bacause I wanted not to appear anymore his google account. I am a beginner in HTC and I installed this ROM following a tutorial, but I am not sure I did eveything all right. I wonder how I could erase everything and install a good,stable ROM from scratch, but I need an exact tutorial for this.
Meanwhile, those problem solved by themselves, but now I get the same freezing screen when I try to call or someone calls me. I can hear them, but it just freezes and I cannot do anything, unless I remove the battery. It doesn't happen all the time, but very often...
LE: Right now I'm trying another ROM, I installed a version of CWM of 150 mb( as requested by this ROM) and wiped everything and now it is installing hyperdroid CM7 v5.5.2.
I have to say that with the previous ROM I tried to remove the SD and the same error, so I thought that changing it may be a solution.
Click to expand...
Click to collapse
Well did you try mtty
http://forum.xda-developers.com/showthread.php?t=623356:confused:
OK. so you want to flash a new NAND rom from scratch? deleting everything in the process. please contact me through the private messaging function i will take you step by step through evrything. all links, steps, etc. arite?

RIL disapperaring sometimes

Hi guys, I have to clear my mind on a problem:
I have a XT1562 european mono-SIM Moto X Play, and I've upgraded it to Marshmallow (the indian dual-SIM firmware) after unlocking the bootloader and flashed Squid kernel some weeks ago (and then updated to the last build, of course).
Sometimes I'm experiencing an annoying thing: after a reboot RIL dies, and on the best, on the next reboot it reappears; on the worst, after multiple reboots with no luck, I have to do a wipe cache to see it again.
I have root and Xposed (and so, also busybox).
Is anyone experiencing something similar?
There's a way to fix it that maybe I didn't find here on XDA?
Nobody?
have u tried flashing the modem for ur rom?
anks095 said:
have u tried flashing the modem for ur rom?
Click to expand...
Click to collapse
Yes.
But it's strange, because I see it's not modem fault or similar. I see it's something software related because sometimes when I reboot, I also have the stock wallpaper (the green material one).
Now I flashed Marshmallux rom with the exact configuration (apps, modules, etc) and for now all is ok.
But, I still wanna follow this thread because it's too strange and I want to see if someone will expose a pearl.
nplezka said:
Yes.
But it's strange, because I see it's not modem fault or similar. I see it's something software related because sometimes when I reboot, I also have the stock wallpaper (the green material one).
Now I flashed Marshmallux rom with the exact configuration (apps, modules, etc) and for now all is ok.
But, I still wanna follow this thread because it's too strange and I want to see if someone will expose a pearl.
Click to expand...
Click to collapse
Ok..good...but may be u can do a full wipe and then flash factory image and then check it out if the problem sill exist..if not then that should something with software with ur last OS.
anks095 said:
Ok..good...but may be u can do a full wipe and then flash factory image and then check it out if the problem sill exist..if not then that should something with software with ur last OS.
Click to expand...
Click to collapse
Hi guys, I'm back to inform you that I'm on Marshmallux and the problem is still the same. I get randomly "emergency calls only" until reboot (maybe).
I don't understand...
nplezka said:
Hi guys, I'm back to inform you that I'm on Marshmallux and the problem is still the same. I get randomly "emergency calls only" until reboot (maybe).
I don't understand...
Click to expand...
Click to collapse
I don't know if this is the same thing as you but I had "Emergency Calls Only" sporadically as well but it would come back either after a short period of time or after a reboot. I also had random reboots too (didn't matter which ROM I was on at the time).
I lived with this for a bit but then upgraded my SD card (it was old) and I haven't had either problem since.
My guess is that my SIM card might not've been seated properly in the little carrier and/or the SD card I had was mucking things up somehow. I wasn't using it as internal storage either.
Anyways, if you haven't tried this already, might be worth taking out your SIM card and re-seating it (and maybe give the contact part a careful wipe). If you still have the problem and you have an SD card remove it and see what happens. Good luck!
Hi guys! I'm here with news:
after several tests in these days, I discovered the problem was every module that can modify the systemUI.
I tried activating and disabling those modules one by one (I'm talking about GravityBox first, then little modules like Advanced Power Menu or a newer one called NeoPowerMenu), and I saw that without them, I had network at every reboot. The only exception in systemUI is SignalIconsAOSP (I really hate that big "4G" icon next to the signal indicator) and it works at every reboot I did. The other modules (like Xposed GEL Settings, Lolistat, YouTube AdAway) don't annoy the system.
So, I don't know, Moto seems dislike too much modifications on the UI or it's a strange bug. Maybe a bug.

Home button not working at all (tried several fixes)

(Edit 1) Found a fix already! Read post 2!!!
Hello there,
I've been having a OnePlus Two since 4 months already, and had like 2 or 3 home button not working issues.
They used to fixed by themselves after a couple of days of not working, but not this last time.
I tried already the reinstalling system (after formatting system via TWRP), clean it several times, hard reset (hold power button for more than 20 seconds), complete drain battery and fully charge it again, force stop fingerprint service, take out the tempered glass screen protector, and none of those solutions worked.
I here attach (copy the link, can't upload a video directly to this post) a video in which you can see that whenever I power on the screen (still locked), the home button works for several times, but as soon as I unlock it (pattern lock) it stops working. This makes me think that the problem is software, not hardware, but as I said before, already tried reinstalling OOS 3.0, wiping system, cache, data, internal storage, etc.
I compressed the video so it wouldnt be too big, but quality is good enough, just rise the volume so you can listen to the "vibration" that the home button produce.
Any help would be appreciated.
Sincerely,
Daniel Castro
Fix for the issue!
Forum people, I found a fix!
Ok, the solution for making the home button work again (with fingerprint sensor) is the following.
-Factory reset while in OOS 3.0
-Set up everything up and then reboot into fastboot mode
-Install OOS 2.1 via fastboot (you will need to search the forums for it)
-Set up everything up and try to set up fingerprint (it wont work)
-Copy OOS 3.0 (Beta) in the root of the phone
-Reboot into stock recovery and flash OOS 3.0 (beta)
-Factory reset it and set up everything again
-Voila!
Feel free to try this method and reply to this threat or P.M. me for any help.
Sincerely,
Daniel Castro
I have the same problem
Tomorrow i'll try your method
I've posted a questione about this issue,
I think the One plus team should find a solution to this problem that afflict many users
Also, don't forget to rotate your phone 720 degrees, counter clock wise! ? hocus pocus....
DCastro555 said:
Forum people, I found a fix!
Ok, the solution for making the home button work again (with fingerprint sensor) is the following.
-Factory reset while in OOS 3.0
-Set up everything up and then reboot into fastboot mode
-Install OOS 2.1 via fastboot (you will need to search the forums for it)
-Set up everything up and try to set up fingerprint (it wont work)
-Copy OOS 3.0 (Beta) in the root of the phone
-Reboot into stock recovery and flash OOS 3.0 (beta)
-Factory reset it and set up everything again
-Voila!
Feel free to try this method and reply to this threat or P.M. me for any help.
Sincerely,
Daniel Castro
Click to expand...
Click to collapse
Will it erase my internal storage during that fast boot step? So I can backup all my data.
Sent from my ONE A2003 using Tapatalk
these fixes are all coincidences... we need to request a definitive fix from One plus team if is a software issue.
LOL9988 said:
Will it erase my internal storage during that fast boot step? So I can backup all my data.
Sent from my ONE A2003 using Tapatalk
Click to expand...
Click to collapse
It will erase everything, make a backup before starting the process.
faustin95 said:
these fixes are all coincidences... we need to request a definitive fix from One plus team if is a software issue.
Click to expand...
Click to collapse
Most probably hardware design fault, solution would be to redesign the phone and release a fixed design, will probably not happen unless oneplus3 is the solution.
And I second that it's just coincident behind these back and forth flashing of firmwares "solving" it, almost religious. But what are people to do when oneplus is not a company that takes responsibility for they're mistakes.
pitrus- said:
Most probably hardware design fault, solution would be to redesign the phone and release a fixed design, will probably not happen unless oneplus3 is the solution.
And I second that it's just coincident behind these back and forth flashing of firmwares "solving" it, almost religious. But what are people to do when oneplus is not a company that takes responsibility for they're mistakes.
Click to expand...
Click to collapse
If it works, its worth a try . And yeah, but we are not in any OnePlus Forum, neither debating about if they are gonna do anything about their own issue, we are trying to fix what an irresponsable company wont.
can we make together an official request to one plus to give us an answer or explanation about this? a lot of users are facing this issue, it's not normal
This is my second opt I bought that this problem has happened
sorry for my english
I had also tried lot of things but home button is not responsive at all.. H2os,exodus,oxygen 2.1 ,3.0 same everywhere
---------- Post added at 04:01 AM ---------- Previous post was at 03:59 AM ----------
Error is: when i open fingerprint setting
Enrollment not working try differnt finger or try again ... Nd fingerprint autotest not starting also
i've turned to stock i've updated to oxygen 3.0 bet and the button worked again
i think rooting installing twrp and installing different roms may be the cause of this issue
faustin95 said:
i think rooting installing twrp and installing different roms may be the cause of this issue
Click to expand...
Click to collapse
Unfortunately that is not the case, it's a hardware design bug.
However you can f-k up your finger scanner by damage your persistant-partition if you flash up and down between different ROM/bootloader revisions. But it's easily fixed by flashing the image file for that partition again.
pitrus- said:
Unfortunately that is not the case, it's a hardware design bug.
Click to expand...
Click to collapse
it's a driver issue
faustin95 said:
it's a driver issue
Click to expand...
Click to collapse
50/50 moisture sensitivity and driver issue.
Home button has been working fine for a year, installed 3.0.1 today and suddenly home button only works in OOS 3.0.1. No longer works in CM 13, yet works fine in OOS 3.0.1. Definitely a driver issue.
Tried installing OOS 2.2.1, wiping, then installing Grarak's CM 13 and home button refuses to work. Wiped system, data, cache, installed OOS 3.0.1 and home button works again. Tried wiping again and installed CM 13, home button stopped working. Wiped and reinstalled OOS 3.0.1, home button works again.
Odd thing, my phone will only work with CM13 roms and OOS 2.2.0 or less for fps and home button. Nothing will fix or ever work.
For me, the home button stopped working for a short while on Graraks, then it just jumped back to life again and I haven't had any more home button blackouts after that. If it's a driver issue, it's an extremely intermittent one.
The fingerprint scanner has stopped working from time to time at lockscreen, but this is acceptable for an official hackjobb supported scanner until official sources are released ?
Need Help with this!
Hi everyone!
I have a OP 2 for more than one and a half years now and never had any issues with it(stayed stock...) until recently. I didnt update the phone to the latest version and was putting it off, and today in the afternoon when I tried to unlock my phone it said the 'Fingerprint hardware is not available' and after unlocking the phone with the pattern, it IMMEDIATELY LOCKS ITSELF BACK !!! after split second it just locks the screen while everything is working like connection, wifi, messages, notifications, etc. but due to this I cannot access anything on the phone, can't go to settings and switch to onscreen nav bar buttons, can't force stop/wipe cache the com.fingerprints.serviceext either, tried restarting it several times, downloaded the update but can't even install it because the phone just locks! I have no idea what would fix it and I am avoiding a full reset and wipe on the phone(also based on all i have read, dont think it would fix it anyways)
If anyone knows whats the problem or has dealt with it or knows someone who has, please help me out here on how to fix this and what to do. I did not root it or flash custom ROM's on it yet so literally dont know why it happened.
Thanks,
Max

Flashlight being used by another app. Camera doesn't work

After flashing the unbranded firmware and rooting the phone, I'm not able to use the camera app. Opening it just says "Camera Failed. In the slide down menu, the flashlight icon is turned on even though I'm not actually using the flashlight. and I cant turn it off either. How do I fix this?
I've tried: clearing data & cache of camera app, clearing the cache partition, setting default settings of the camera app, changed camera storage from SD card to internal & vice versa
TommyQuid said:
After flashing the unbranded firmware and rooting the phone, I'm not able to use the camera app. Opening it just says "Camera Failed. In the slide down menu, the flashlight icon is turned on even though I'm not actually using the flashlight. and I cant turn it off either. How do I fix this?
I've tried: clearing data & cache of camera app, clearing the cache partition, setting default settings of the camera app, changed camera storage from SD card to internal & vice versa
Click to expand...
Click to collapse
Sucks no one responded to your post. I rooted my sons S7 Edge and sometime after it acquired the same issue yours has/has. I had another S7 Edge phone so I ended up rooting that one and giving it to him. I still have his old one with the camera fail issue but I've yet to try to figure out what caused it to happen. I know my response doesn't help with info or duration from OP post to reply, I just wanted to let you know that your post wasn't ignored by everyone. Unfortunately I have nothing substantial to contribute.
kanesglove said:
Sucks no one responded to your post. I rooted my sons S7 Edge and sometime after it acquired the same issue yours has/has. I had another S7 Edge phone so I ended up rooting that one and giving it to him. I still have his old one with the camera fail issue but I've yet to try to figure out what caused it to happen. I know my response doesn't help with info or duration from OP post to reply, I just wanted to let you know that your post wasn't ignored by everyone. Unfortunately I have nothing substantial to contribute.
Click to expand...
Click to collapse
So I ended up putting that phone back to stock then rooting it again and it had the exact same issue yours has. I did a clean root too and the issue is still present. From there I decided to again run it back to stock and this time do a nand erase all and repartition the device. After all was finished I checked the device and I'll be goddamned... it still has the same issue. So if the problem persists after all that reformatting is it safe to say that it's a hardware issue? I'm out of ideas. Sorry I couldn't help you.
kanesglove said:
So I ended up putting that phone back to stock then rooting it again and it had the exact same issue yours has. I did a clean root too and the issue is still present. From there I decided to again run it back to stock and this time do a nand erase all and repartition the device. After all was finished I checked the device and I'll be goddamned... it still has the same issue. So if the problem persists after all that reformatting is it safe to say that it's a hardware issue? I'm out of ideas. Sorry I couldn't help you.
Click to expand...
Click to collapse
you guys offer little information at all so this is why no one helps you. Maybe tell what firmware version you flashed what root version you did etc. There is a big difference between bootloader revB/11 and the others
Holy ****. Did I just get constructive suggestions from jrkruse?! Dude if you told me I could fix my phone by sucking a fart out of a wallaby's ass I'd do it cuz the advice came from you, and if there's one thing I know it's that you know your ****. You're ****in' awesome. I feel so special now. Ok sorry about that...
Well, I'm not too sure about the OP but I can tell you about the phone I have that seems to have the same issue.
My S7 Edge is a SM-G935V on android 7.0 on update 4BQK2. Prior to rooting I put everything to stock then I did a NAND erase and repartition. No issues with any of that.
I rooted my phone from this post
G935V Root Method. No Lag! No Heat!
G935V Root Method. No Lag! No Heat!
I AM NOT RESPONSIBLE FOR ANY OF YOUR ISSUES! ALL I CAN DO IS RECOMMEND A GOOD PSYCHOLOGIST! Hey guys. Stumbled on this by accident. I HAVE ABSOLUTELY NO IDEA WHY IT WORKS, BUT IT DOES. THE METHOD HAS BEEN TESTED BY ME AND A FEW OTHER PEOPLE HERE...
forum.xda-developers.com
which directs to your older method for gaining root privileges.
[DISCONTINUED] ROOT Method For Nougat
DISCONTINUED New Thread Found Here This Root Method For S7 Nougat Nougat_S7_Root_2_82_All_Carriers_V2.zip Includes Fingerprint Fix [Latest Verison] Nougat_S7_Root_2_81_All_Carriers_V2.zip Includes Fingerprint Fix Nougat_S7_Root_2_79_All.zip...
forum.xda-developers.com
I also flashed Unzip the Nougat_S7_Root_2_82_All_Carriers_V2.
Then I flashed the BL file in the BL slot from the G935U firmware with odin checking "Phone Bootloader Update". I used the BL file from G935UUES4BRA1 since it's the closest update for the U brand to the firmware this phone is on (G935VVRU4BQK2)
I'm aware that there are newer methods for gaining root access but I chose this method cuz I used it back in 2017-2018, I had read all the posts in the thread, and I knew it worked.
I currently have 3 S7 Edge phones all on the same firmware and build and are all rooted with the same combo method I just explained. The other 2 phones also have xposed installed and they both work well.. expect mine says weird stuff instead of the callers information. I think it only does it if they're a contact but in the notification tab it says an example like this 5556661234;verstat=No-TN-Validation. No clue how to fix that.
The phone that is having the same issue as the OP still had access to the private/secure folder when it was rooted; which I thought was weird cuz mine doesn't and from what I understood private mode gets disabled if the phone's rooted. Maybe it only gets disabled if you install xposed? I don't know. My son had the phone with the issue and it was his first smart phone and he dropped it a few times (with a case) so I was thinking it's an effect from something he downloaded from the play store (he's 20 now but pretty still very ignorant with android). Now I'm not sure if it's a software or hardware issue since the problem persisted after the NAND erase.
Something to note about my sons old phone also is that it has 2 thin pink lines running down one side of the screen (defective/dead pixels) and when the screen turns off it it flashes once before actually turning off. One time over the phone I tried troubleshooting the issue with him and he ended up being able to use his camera immediately after rebooting the phone though once he exited the camera app it wouldn't open again. We were trying a bunch of things, force closing any app I thought would be related to the issue. Not sure what allowed it work when it did, but even now right after a reboot the camera app still crashes.
This was long ago, I've since lost the phone. But, I was on the A bootloader and on OREO rooted using @/billa's method using an ENGboot file. I tried everything possible to get the camera to work including flashing back to stock but nothing helped. I just gave up finally. @kanesglove maybe try safely updating the firmware. Hope it helps

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