Develop Bugs

Factory reset without unroot

My phone is getting a bit sluggish and clogged up so I was thinking of resetting it but I don't want to lose my root. What's the best way to do that? I don't mind everything being deleted etc. Just want it to be like it was when I bought it, just with root! If it's too much of a fuss obviously I'll reset and reroot, just wondering if there's a way to avoid it as it's a convoluted process.
Thanks in advance

This weekend I swapped my Z1C for a friends ZL. My phone was rooted (I think I had used the recent 'easyroot' method). Before giving him the phone, I did a wipe (including wiping the internal SD card) via Settings->Backup & Reset. After doing the initial setup, he still had root. When we swapped back, I wiped again (via settings again) and root stayed.
One thing I notice is that the SuperSU app is gone.. which is not a big deal.
Not to say that the answer is a definite "yes"... but I thought since my experience was so recent, I would share. Good luck! Rooting is pretty easy now anyway, if it doesn't work.

[Q] Root access occasionally not sticking in Lollipop?

This is a bit of a weird one, so I wanted to see if anyone else had seen this.
I am running a bog-standard DevEd M8 (converted from AT&T) with Lollipop 5.0.1. It is S-off, bootloader unlocked, but not running a custom recovery. I went back to stock after rooting the phone. Most of the time, everything works fine, but sometimes after a reboot root access doesn't work. I usually notice this when AFWall fails to update the firewall tables. However, a subsequent reboot usually fixes the problem.
Not sure what is up with that, but it seems like there is some sort of race condition during startup. It is weird that I almost always get root back on a reboot, though there have been a few occasions where it took two reboots.
I don't restart that often, but it is kind of an annoyance. Enough that I'm seriously considering bailing and switching to a different ROM, but if there was an easy fix I would rather not have to setup my phone again.

If you use SuperSU make sure your settings are configured to allow all root requests at boot time, if you don't use SuperSU, start using it, it's much more solid from my experience than the rest of the root related apps.

JackHarley said:
If you use SuperSU make sure your settings are configured to allow all root requests at boot time, if you don't use SuperSU, start using it, it's much more solid from my experience than the rest of the root related apps.
Click to expand...
Click to collapse
I am using SuperSU, and I thought I had enabled SU during boot. However, upon checking, it seems I forgot to check it when I upgraded to Lollipop. Hopefully that fixes it.
Thanks!

Ota security update 9/29/15

Just did the ota update. Have since rebooted phone twice. Update and phone don't like each other! Chrome keeps auto-closing. And phone is lagging/freezing continuously. Phone was rooted years ago, and never any issues, even upgrading to Kitkat. This one I'm not to sure about!!!!!
Oh, and booting takes about twice looking too!
Keeps getting better...can't download anything from the play store. Says it's downloading, but never goes anywhere.

andygold said:
Just did the ota update. Have since rebooted phone twice. Update and phone don't like each other! Chrome keeps auto-closing. And phone is lagging/freezing continuously. Phone was rooted years ago, and never any issues, even upgrading to Kitkat. This one I'm not to sure about!!!!!
Oh, and booting takes about twice looking too!
Keeps getting better...can't download anything from the play store. Says it's downloading, but never goes anywhere.
Click to expand...
Click to collapse
Were you rooted? The last OTA update tried to take away root and it was really hard getting it back. It's acted strangely ever since.

wildbean98 said:
Were you rooted? The last OTA update tried to take away root and it was really hard getting it back. It's acted strangely ever since.
Click to expand...
Click to collapse
I took the update against my better judgement and sure enough soft bricked and now phone wont go into DL mode...grrrr

Major issues here as well. My SD card is now blank and doesn't want to mount. Big slowdowns as well. Any way to remove this update ?
Sent from my SHIELD Tablet using Tapatalk

Was finally able to DL apps, but at a crawl. I cleared the cache including dalvik, and everything is back to normal. And I'm still rooted!
I used Cache Cleaner NG from the play store

Soft bricked
I have bricked my phone after accidentally accepting it. Got back the phone again with lg flash tool. Once restarted the phone, rooted it, used titanium backup apk to freeze the software updater.

I don't think that it is wise to do a software update while rooted, it usually denies the process anyways.

Actually guys, its most likely that malware piece that was making its way around. Didnt anyone else read about it a few days ago? Let me hunt it down and see if i can post a link here. Standby....
Update: hold the phone, i may have been mistaken. Standby...
Now im soo broke i cant even pay attention!

ThaHawk said:
I don't think that it is wise to do a software update while rooted, it usually denies the process anyways.
Click to expand...
Click to collapse
Hi, rooting a phone does not stop the update anyway since you can unroot very easily, if it is supersu apk. But if a person installed custom recovery, it can brick the phone since the update tries to use the stock recovery. I learnt it in the hard way.

sdivk said:
Hi, rooting a phone does not stop the update anyway since you can unroot very easily, if it is supersu apk. But if a person installed custom recovery, it can brick the phone since the update tries to use the stock recovery. I learnt it in the hard way.
Click to expand...
Click to collapse
I stand corrected, your absolutely right!

ThaHawk said:
I stand corrected, your absolutely right!
Click to expand...
Click to collapse
Thanks. If you have a rooted lg e980 without custom recovery, you can use quickboot apk to enter stock recovery, which has limited features.
The problem with unlocking bootloader and use custom recovery is, if there is an update, there is no way to relock the bootloader and flash stock recovery. If sombody can shed the light on this matter, i really appreciate it.
I am looking for a way to relock the bootloader and install stock recovery without using lg flash tool.
Not that i am expecting an update from AT&T anytime soon.

+1

its better its included on CM based ROMs also

Note 4 bootloop... hardware failure?

Hi,
I plugged my note 4 into the OEM charger and all of a sudden it just goes into a bootloop continuously.
Occasionally it will reach the home screen and reboot again, but more often than not.. it reboot before the Sprint logo comes up.
Was fine before i plugged it in and was trouble free prior to that.
My phone is stock, not rooted.
The fact that it will reboot even at the Note 4 welcome sign is leading me to believe this could be a hardware issue...
Any ideas?
Anybody had the same situation and had luck troubleshooting or fixing this?
Any and all help i much appreciated...
Regards,
asmd.

Can you boot into recovery?
First thing I'd try is to pull battery, boot into stock recovery and wipe cache and try to boot.
If not booting, try wiping cache and dalvik.
You have the option to just take it in for evaluation but you should determine if you have reactivation lock enabled before doing anything else.
Still not booting? Factory reset. But if you have reactivation lock enabled that is not a good idea. It would be better if one of the two above booted the phone.
If reactivation lock is enabled, you need to install the same update the phone is on to prevent factory reset protection from activating. Don't factory reset yet; Odin or taking in for service may be your only option. If it boots, you should be able to open with same unlock method as before.
If you have reactivation lock disabled, you're free to try factory reset or update to latest through KIES. I've heard Samsung Switch may work too. You could also factory reset and update or emergency recover with one of those.
If still not booting, if it just updated, I'd mention that and not the charger you mentioned. It could be corrupt memory due to battery failing or bad update. The eMMC may be failing too.
Sent from my SM-N910P using Tapatalk

samep said:
Can you boot into recovery?
First thing I'd try is to pull battery, boot into stock recovery and wipe cache and try to boot.
If not booting, try wiping cache and dalvik.
You have the option to just take it in for evaluation but you should determine if you have reactivation lock enabled before doing anything else.
Still not booting? Factory reset. But if you have reactivation lock enabled that is not a good idea. It would be better if one of the two above booted the phone.
If reactivation lock is enabled, you need to install the same update the phone is on to prevent factory reset protection from activating. Don't factory reset yet; Odin or taking in for service may be your only option. If it boots, you should be able to open with same unlock method as before.
If you have reactivation lock disabled, you're free to try factory reset or update to latest through KIES. I've heard Samsung Switch may work too. You could also factory reset and update or emergency recover with one of those.
If still not booting, if it just updated, I'd mention that and not the charger you mentioned. It could be corrupt memory due to battery failing or bad update. The eMMC may be failing too.
Sent from my SM-N910P using Tapatalk
Click to expand...
Click to collapse
Thanks for the reply...
Ive been messing with it all morning... and if i leave it a lone and it cools, it will last a little longer than when it becomes warm, rebooting quicker and quicker.
i managed to get into recover and did a factory reset and cleared cache.
it has made no difference.
The longest time its gone before rebooting is the lock screen.... and the it reboots again.
as it warms, it eventually wont even get past the Note 4 welcome screen before rebooting.. and then finally freezing and will require a battery pull.
Makes no difference if its on charge or off.
i have a sinking feeling about this.....

Could be terminal but you haven't tried to flash firmware on partitions with Smart Switch, KIES or Odin yet. Right? You can check the phone status while in download mode to verify reactivation lock is disabled.
Try one of those on PC or take it to Sprint to have it flashed again.
If you purchased at Best Buy and they have a Samsung Experience kiosk, they can do that too. Dunno, maybe it doesn't matter if you purchased there or not but they've flashed my phone a couple of times.
I've tried to guide you down the path of least effort to restore your, if possible. There's still some hope of recovery.
Edit: Your battery could be suspect. Let it cool and plug in to make sure it's at least 60% or higher. If the battery is near a year old, I'd suggest fully charging but get a replacement if you frequently discharge it to 15% or lower. Especially if you use fast charging.
But you've most likely discharged it with all that reboot activity and heating up. Kudos to you if you're managing all that and keep a healthy battery. Otherwise, the battery may be contributing to or causing your issues.
Sent from my SM-N910P using Tapatalk

thank you for the help..
reactivation lock is off.
i can't get it to reliably not reboot anywhere in any screen.. only screen that will stay on for any period of time is recovery... but the phone stays cool.
Its not the battery, i have two, and both do the same thing.. the battery does not get warm, area that gets warm is neft to the battery below the sd card slot. (sd card removed).
Frequency of hang/reboot seems to be related to how warm that area gets.
The most i have managed to do is get into my phone past the lockscreen and it will shortly freeze and reboot as it warms up.. it will reboot at the note 4 welcome screen or sprint logo... and repeat... eventually to hang.
Both batteries are charged fully using the external charger. (samsung oem)
Shame, not a scratch on her....
Oh well, on to Ebay for parts/AS IS and time to move on...

Even if doubtful, I'd still take it back to Sprint or place of purchase.
The Note 4 has a bit of history with eMMC failure. It's even happened with updates and Samsung and Sprint is apparently aware of it. A while back I saw that listed as an ongoing carryover of known issues that needed resolution.
I don't have true stats on exchanges but several users here have repeatedly gotten deals on replacement phones, paying a small percentage when they failed- similar to yours.
OTA updates have also been suspect to cause eMMC failure. But honestly, l don't know what causes this: bad hardware or updates? Maybe it's just bad hardware not taking updates well? Nonetheless, I don't know if I've just been lucky or my hardware is stable. Still going strong here with no hint of failure.
Sent from my SM-N910P using Tapatalk

can i still take it back even though its out of warranty?
nearing 2 years now....

asmd6230 said:
can i still take it back even though its out of warranty?
nearing 2 years now....
Click to expand...
Click to collapse
No promises. Couldn't hurt. If you don't like the answer you get from first Sprint store, try another.
I would mention that bit of history with the updates.
Sent from my SM-N910P using Tapatalk

asmd6230 said:
Hi,
I plugged my note 4 into the OEM charger and all of a sudden it just goes into a bootloop continuously.
Occasionally it will reach the home screen and reboot again, but more often than not.. it reboot before the Sprint logo comes up.
Was fine before i plugged it in and was trouble free prior to that.
My phone is stock, not rooted.
The fact that it will reboot even at the Note 4 welcome sign is leading me to believe this could be a hardware issue...
Any ideas?
Anybody had the same situation and had luck troubleshooting or fixing this?
Any and all help i much appreciated...
Regards,
asmd.
Click to expand...
Click to collapse
I have the exact same issue going on with my wives phone. Just started yesterday out of no where rebooting over and over. Never really getting past the Samsung splash screen. She got an update like a week ago, but other than downloading a new app several hours earlier nothing sticks out to why its happening. I was able to once get into safemode, but the phone rebooted a minute into it and typically doesn't even get to the sprint splash screen when I've tried to do it since. It's totally stock and has not been unlocked or rooted. I thought it could be the battery since so many of these boot issues on the Note4 deal with that when googling, but my battery from my working Note4 in her phone does the same thing and her battery in my phone works just fine. I can get into the recovery options menu (volume up + home + power) and I can get into the download area (volume down + home + power) for loading bootloaders and such for long periods of time with no issues. I've cleared the cache with no luck. Haven't tried factory reset yet because I want to try to recover the photos and stuff first. Searching for the issue on google I came across this software (android-recovery.net/android-recovery-mode.html#two) where I was able to use the download area and connect the phone with this app which used its own bootup and it was able to show me all the files on the phone for recovery so we could retrieve them. It wanted $50 to complete the process though and, knowing the advances that everyone here has made on their phones I decided to decline that and search these forums for a way to just access the file directory of my the phone and retrieve my wives stuff prior to factory resetting it. I believe something is wrong with the bootloader of the phone and that is why it cannot get to the android OS to start up, but I could be wrong. Reading various articles made me to believe that if I just were to unlock the phone for rooting that possibly that could fix this issue with the bootloader or at least be able to recover her photos and stuff. I do have insurance on the phone and could get it fixed or replaced, but that would be a $200 deductible I believe and first thing they're going to try is factory resetting the phone which will lose her data we're trying to save.
It almost seems as if I were to get TWRP installed that I'd be able to access the files without the need of loading any ROMs. But I'm not sure if that will work in my case or erase data when I do it. The threads I'm reading aren't clear on that part. I would really be grateful if anyone could help me out with figuring out the easiest way to recover her stuff or get it working. Its been a long time since I've unlocked any phones and they were all iPhones back in the day when they were only on AT&T and I had T-mobile and wanted to it work.

@dsm_gsx97
I would suggest you try Odin and install the same update, if possible. That may be the most likely to retain your data if it's not corrupted.
Unfortunately, I don't think TWRP recovery works for Note 4 to copy data to PC. But if you go with that, know that it will trip Knox and void factory warranty. But if that's not an issue, you could copy data from internal memory to extSdCard to salvage it if it's not corrupt or private.
I know KIES has an emergency firmware recovery mode that may offer to reprogram it. But you may lose your data. Not sure but I think your phone has to booted into system to backup with KIES or Smart Switch?
This thread has the recent available stock tars, Odin and general instructions to get you started.
http://forum.xda-developers.com/showthread.php?p=63868221
Sent from my SM-N910P using Tapatalk

samep said:
@dsm_gsx97
I would suggest you try Odin and install the same update, if possible. That may be the most likely to retain your data if it's not corrupted.
Unfortunately, I don't think TWRP recovery works for Note 4 to copy data to PC. But if you go with that, know that it will trip Knox and void factory warranty. But if that's not an issue, you could copy data from internal memory to extSdCard to salvage it if it's not corrupt or private.
I know KIES has an emergency firmware recovery mode that may offer to reprogram it. But you may lose your data. Not sure but I think your phone has to booted into system to backup with KIES or Smart Switch?
This thread has the recent available stock tars, Odin and general instructions to get you started.
http://forum.xda-developers.com/showthread.php?p=63868221
Sent from my SM-N910P using Tapatalk
Click to expand...
Click to collapse
Thank you very much for the quick response. I would rather not void my factory warranty in case I have to use the insurance to replace it so it sounds like TWRP is out which is why I didn't use it yet because I was worried about that. I did try KIES and it said that firmware upgrade and initialization would erase all data. So I ruled out using that too. I did notice while in the recovery menu of her phone that it says she's on N910PVPU1ANIE ...so I put my phone in recovery menu and I'm on N910PVPU4DPH4. Googling her version it looks like hers is very old and mine is fairly new which makes sense because I did the update a few days ago also. I wonder if hers is so old because that's what the other software program put it on to be able to bootload it to recover the files.
Anyways looking at your link I think I'll try oden with one of the more recent TARs after getting her stuff off with that program. Yes I'll just pay the $50 for peace of mind. I really appreciate your advice. Its not easy gathering all the answers without really being involved on this forum so thank you for that thread. None of the TARs listed is the update I have, but that shouldn't matter should it? As long as its a newer one than what it says she has?

dsm_gsx97 said:
Thank you very much for the quick response. I would rather not void my factory warranty in case I have to use the insurance to replace it so it sounds like TWRP is out which is why I didn't use it yet because I was worried about that. I did try KIES and it said that firmware upgrade and initialization would erase all data. So I ruled out using that too. I did notice while in the recovery menu of her phone that it says she's on N910PVPU1ANIE ...so I put my phone in recovery menu and I'm on N910PVPU4DPH4. Googling her version it looks like hers is very old and mine is fairly new which makes sense because I did the update a few days ago also. I wonder if hers is so old because that's what the other software program put it on to be able to bootload it to recover the files.
Anyways looking at your link I think I'll try oden with one of the more recent TARs after getting her stuff off with that program. Yes I'll just pay the $50 for peace of mind. I really appreciate your advice. Its not easy gathering all the answers without really being involved on this forum so thank you for that thread. None of the TARs listed is the update I have, but that shouldn't matter should it? As long as its a newer one than what it says she has?
Click to expand...
Click to collapse
Was it only the OTA update that updated that phone?
NIE is the original-initial release of the Note 4. If OTA tried to update it, it must have failed?
Nonetheless, you should know the history of that phone. I wouldn't install one of those recent updates until you've backed up your data. You may lose your data jumping to a much newer update.
The phone doesn't boot at all? If it does boot, you could run Phone Info for Samsung from Google Play to see what the partitions are actually at. That would help to recover that data if possible to do so. But also KIES could backup data if it boots.
The NIE stock tar is in post #2 of this thread.
http://forum.xda-developers.com/showpost.php?p=56853325&postcount=1
If it boots after Odin, your data may be OK. If not, may be corrupted data or partition.
Sent from my SM-N910P using Tapatalk

samep said:
Was it only the OTA update that updated that phone?
NIE is the original-initial release of the Note 4. If OTA tried to update it, it must have failed?
Nonetheless, you should know the history of that phone. I wouldn't install one of those recent updates until you've backed up your data. You may lose your data jumping to a much newer update.
The phone doesn't boot at all? If it does boot, you could run Phone Info for Samsung from Google Play to see what the partitions are actually at. That would help to recover that data if possible to do so. But also KIES could backup data if it boots.
The NIE stock tar is in post #2 of this thread.
http://forum.xda-developers.com/showpost.php?p=56853325&postcount=1
If it boots after Odin, your data may be OK. If not, may be corrupted data or partition.
Sent from my SM-N910P using Tapatalk
Click to expand...
Click to collapse
She's done plenty of updates over the last few years since we got the phoens. In fact she did that last update a few days before I did. That's why I was confused when I noticed what it said at the top of the bootloader screen for her update version. The phone does not boot at all. Only to the the Samsung splash screen and never gets to the sprint splash screen. It initially would get further, but now doesn't at all. I went ahead and paid for that software and have now backed up all her stuff. Was hoping to fix it without factory resetting the phone. At this point at least I have a backup, but ideally it would save her from losing all her texts and other crap.

dsm_gsx97 said:
She's done plenty of updates over the last few years since we got the phoens. In fact she did that last update a few days before I did. That's why I was confused when I noticed what it said at the top of the bootloader screen for her update version. The phone does not boot at all. Only to the the Samsung splash screen and never gets to the sprint splash screen. It initially would get further, but now doesn't at all. I went ahead and paid for that software and have now backed up all her stuff. Was hoping to fix it without factory resetting the phone. At this point at least I have a backup, but ideally it would save her from losing all her texts and other crap.
Click to expand...
Click to collapse
In that case, try the most recent stock tar in the first thread you were about to try.
Something seems off but trying to flash the original stock tar would be problematic if it was updated beyond Android 5.0
If it doesn't boot, you'll most likely have to factory reset it.
Sent from my SM-N910P using Tapatalk

Note 4 bootloop
just heat main ic little bit with past and check there is no heatup board on boot.and set is ok.tested

Pixel xl phone app unresponsive 9.0

Hi, I'm aware that several people have issues with the new pie rom.
Unfortunately, I have a problem that I haven't seen before on the forum:
It takes like a full 5 sec to call somebody and the same to end it.
It's very frustrating because I never know how to react in this situation (did he heard? Etc...)
I don't want to factory reset and I got everything stock.
Anyone has an idea on how to fix this?
Can I wipe cache with the stock recovery? Maybe install an other phone app?
Thx

i am having issues in pie as well. i cant seem to transfer large files to the phone.doing so makes the phone restarts. i tried it 5 times or so. fhis update is not good

Only way to clear up issues is a clean factory image install if this was not done to begin with.

OK thanks...
Though I blindfully hope someone will be get some alternative has I don't want do execute such extreme solution

b4bass said:
OK thanks...
Though I blindfully hope someone will be get some alternative has I don't want do execute such extreme solution
Click to expand...
Click to collapse
It's actually relatively painless. Apps restore automatically when you go through setup, calls and texts are restored, as well as system settings and WiFi networks. Takes me ~30 mins total, and maybe 5 of that is actually looking at the phone, the rest is letting it sync and restore backups automatically.

I was thinking about it doing a factory reset once the final came out but I've heard stories from fellow moviepass owners that are unable to use the app when switching phones. That would make a valid concern for factory resets as well. Not because of lag but I have noticed battery seems worse after the upgrade and wanted to factory reset to rule out. As I ran all the ota betas of pie a factory reset isn't a bad idea anyway.

tiny4579 said:
I was thinking about it doing a factory reset once the final came out but I've heard stories from fellow moviepass owners that are unable to use the app when switching phones. That would make a valid concern for factory resets as well. Not because of lag but I have noticed battery seems worse after the upgrade and wanted to factory reset to rule out. As I ran all the ota betas of pie a factory reset isn't a bad idea anyway.
Click to expand...
Click to collapse
Your device ID is tied to the app. When you factory reset and reinstall the app your device ID is reset. You can root using Magisk and then install Titanium Backup to backup the app and data, this will preserve the ID. i had to do this when switching ROMS.