Database Users

not able to flash factory image!

hey guys,
after a long day og non-success i really need your help here.
i tried to do a factory image restore as described here: http://forum.xda-developers.com/showthread.php?t=1907796
Everything worked fine until it came to the point of flashing the image (fastboot -w update image-nakasi-jop40c.zip). as you can see on screenshot1 it stops working at step "sending system" (i´ve been waiting for 2 hours, nothing happened).
also tried the same procedure with nexus 7 toolkit and nexus root toolkit, but here the same problem mentioned above occurs when "sending bootloader" (see screenshot2).
all in all here is what i´ve got:
working unlocked bootloader (4.13), stock recovery and fastboot - but no system
i hope there´s all the information you need right now and anyone can help me out of this misery.
thanks!

Take a look at this video; it describes everything you need to learn how to use the Nexus 7 Root Toolkit: http://www.youtube.com/watch?v=sK9avekmA1c
Once you figure it out you will also be able to flash the stock ROM to your tablet.
boerni2k said:
hey guys,
after a long day og non-success i really need your help here.
i tried to do a factory image restore as described here: http://forum.xda-developers.com/showthread.php?t=1907796
Everything worked fine until it came to the point of flashing the image (fastboot -w update image-nakasi-jop40c.zip). as you can see on screenshot1 it stops working at step "sending system" (i´ve been waiting for 2 hours, nothing happened).
also tried the same procedure with nexus 7 toolkit and nexus root toolkit, but here the same problem mentioned above occurs when "sending bootloader" (see screenshot2).
all in all here is what i´ve got:
working unlocked bootloader (4.13), stock recovery and fastboot - but no system
i hope there´s all the information you need right now and anyone can help me out of this misery.
thanks!
Click to expand...
Click to collapse

thanks for your answer but this is not helpful. the problem is not that i dont know how to use the tools but somehow the flashing process stops at the points mentioned above and i cant explain why

Maybe your downloaded factory image is corrupted somehow? You could try re-downloading and/or flashing the system.img separately:
fastboot flash system system.img

i already tried that and also let the toolkits download the images themselves but still no success.
when flashing the system.img seperately it still just says sending system.img but nothing happens
trying to flash an older bootloader also failed due to the same problem

Try different cable/USB port/PC. Sounds unlikely but you'd be surprised.

Looks like the 4.13 bootloader has a serious issue with receiving and then flashing data, I keep reading about this....

dave_uk said:
Try different cable/USB port/PC. Sounds unlikely but you'd be surprised.
Click to expand...
Click to collapse
holy cow. it´s always the simple things in life that really matter right? although i already tried different usb ports, there were still others to try and finally it worked!
thanks man! problem solved

boerni2k said:
holy cow. it´s always the simple things in life that really matter right? although i already tried different usb ports, there were still others to try and finally it worked!
thanks man! problem solved
Click to expand...
Click to collapse
Had a very similar situation myself a couple of days where I thought I'd completely murdered by days-old Nexus 7 3G and switching flaming USB ports sorted it. Annoyance and relief in equal measure! Glad it worked for you.
D

flash write failure

Dear guys,
due to problems within this morning, i restarted my phone to wipe dalvik/cache.
But it occured that TWRP somehowe needs to have a password (which i didn't ever set though).
Didn't boot up at all now. Even with toolkit no chance to do anything with the device.
Any further suggestions/ideas?

Try flashing the factory image without using a tool kit. Google nexus 4 factory image. Download it to your pc and extract it. Run the flash-all.bat you'll find in there.
Sent from my Nexus 5

r4ff0r said:
Dear guys,
due to problems within this morning, i restarted my phone to wipe dalvik/cache.
But it occured that TWRP somehowe needs to have a password (which i didn't ever set though).
Didn't boot up at all now. Even with toolkit no chance to do anything with the device.
Any further suggestions/ideas?
Click to expand...
Click to collapse
Some Partitions of the phone have got some bad blocks causing it to act in such a way !! Seems RMA(if available) is the best recourse since there is no definative solution to this problem !! You can try hard reboot as well as someone once pointed out that his n4 magically restored during it but others dint have that much of luck !! Also u could give LGNPST a try but since that also writes the partition it is highly unlikely to get you through !! One Solution I know will surely work is Qualcomm PST using the HighSpeed USB Device . But unfortunately we need an expert help, probably a Qualcomm employee to get in touch with since the tool has still not been cracked by anyone for n4 though I read somewhere that someone was able to restore using QPST !! Also mostly a JTAG Repair can help you but thats a rip off !! I'll anyday prefer a official LG/Google Repair over a JTAG !!
Hope you find my post useful !!

THanks Guys,
JD5, it didn't work.
Corresponding to Nabendu's post i guess it is the issue mentioned here.
http://forum.xda-developers.com/nexus-4/help/dead-nexus-4-strange-advice-welcome-t2259334
So therefore i don't see any chance :-/

r4ff0r said:
THanks Guys,
JD5, it didn't work.
Corresponding to Nabendu's post i guess it is the issue mentioned here.
http://forum.xda-developers.com/nexus-4/help/dead-nexus-4-strange-advice-welcome-t2259334
So therefore i don't see any chance :-/
Click to expand...
Click to collapse
I was afraid of that. Try one thing. Relock the bootloader, fastboot oem lock, then re-boot and see if the bootloader locks. If it doesn't, and it probably won't, then rma is your option.
Edit, haha, I just read that thread you posted and they tried the same thing
Sent from my Nexus 5

i was already trying that. at first it seems that the bootloader got locked again but right after restart it is already unlocked again.
I guess RMA will cause problems due to the fact that it was a rooted Nexus, using a custom rom.

r4ff0r said:
i was already trying that. at first it seems that the bootloader got locked again but right after restart it is already unlocked again.
I guess RMA will cause problems due to the fact that it was a rooted Nexus, using a custom rom.
Click to expand...
Click to collapse
Google seems to have been pretty good with rma's when it's a hardware failure. Pretty sure your emmc is borked. But you never know until you send it in. Hopefully there won't be a problem.
Sent from my Nexus 5

Ok I'll give it a try on monday. But as far as i know, i'll need to call them first.
I could imagine that they'll try to let me wipe my data or give me any kind of instructions to see if they can resolve the problem right away? What do i tell them?
At latest when they'll lead me to the recovery i'll get stuck using TWRP at latest.
Any kind of conversation dialogue i can follow up?

Let's try one more thing, inside the factory image is a zip file, extract that. In there is recovery.img. Put that file in the same folder as fastboot.exe. In fastboot try fastboot flash recovery recovery.img
If it works it'll put the stock recovery on.
Sent from my Nexus 5

Nope, same issue " flash write failure"
I can't get any kind o access...
But don't leave any more thoughts on it. Won't work though, i won't want to bother you all the time

jd1639 said:
Let's try one more thing, inside the factory image is a zip file, extract that. In there is recovery.img. Put that file in the same folder as fastboot.exe. In fastboot try fastboot flash recovery recovery.img
If it works it'll put the stock recovery on.
Sent from my Nexus 5
Click to expand...
Click to collapse
It won't let you flash that either to the best of my knowledge !! Just don't tell those operators that you have unlocked your bootloader and have a custom recovery !! Basically they won't tell u to go into stock recovery !! They'll just ask you hard reset the phone using physical keys !! Bdw check my pm !!

r4ff0r said:
Nope, same issue " flash write failure"
I can't get any kind o access...
But don't leave any more thoughts on it. Won't work though, i won't want to bother you all the time
Click to expand...
Click to collapse
Np, not sure what to tell them. It still boots I assume so you can't tell them it won't boot. I guess just the truth, it is a developer phone after all so it should be flashable
Sent from my Nexus 5

Flashing software

Okay I'm having another stab at repairing my device, because it CANT be broken, it broke from an OTA update to 4.4, but i've used the restore back to 4.3 from Advent but still nothing, I have tried a few things, it gets stuck at the TEGRA Note logo so it has to be something with the boot, I did notice in CWM it couldn't mound the data partition but i fixed that by flashing userdata from fastboot, still got the stuck on boot issue, I'm trying a zip of a 4.4 rom, then i'll try it, if it doesn't work I'm gonna try a 4.3 boot img but i don't know if that will help. Any ideas?

Can you get it into APX?

Andy4Shurr said:
Can you get it into APX?
Click to expand...
Click to collapse
Yes which I used to do the Advent apx restore. That was the first ever thing I tried after the OTA failed, you'd expect it to fix it since I had 0 root, 0 custom rom or anything, it was an official OTA that broke my device but the advent apx did not solve it.

LightInDark said:
Yes which I used to do the Advent apx restore. That was the first ever thing I tried after the OTA failed, you'd expect it to fix it since I had 0 root, 0 custom rom or anything, it was an official OTA that broke my device but the advent apx did not solve it.
Click to expand...
Click to collapse
Did the transfer seem to go ok, were there any messages? I only ask because I had a problem where in APX and flashing back to 4.4 using Super Tools it gave me an error right at the end and kept getting stuck at the boot logo. Another time it would flash ok but system processes kept crashing etc on boot.
I found out that using a different usb port on my laptop solved all the problems, I haven't had any trouble since doing that. I don't know why or if it will help your case to do this but maybe give the nvflash another try using a different USB port and see if it makes any difference!

Andy4Shurr said:
Did the transfer seem to go ok, were there any messages? I only ask because I had a problem where in APX and flashing back to 4.4 using Super Tools it gave me an error right at the end and kept getting stuck at the boot logo. Another time it would flash ok but system processes kept crashing etc on boot.
I found out that using a different usb port on my laptop solved all the problems, I haven't had any trouble since doing that. I don't know why or if it will help your case to do this but maybe give the nvflash another try using a different USB port and see if it makes any difference!
Click to expand...
Click to collapse
I've tried both the super tool 4.4 flash and APX multiple times, the super tool just gives an error and doesnt flash system, boot or recovery images. APX doesn't seem to give any errors. Tried on both the USB 3 ports and USB 2 ports and with 2 cables, the official one and the cable for my LG G2.

[Q] Bricked Nexus 4

Hello Guys,
yesterday I restarted my Nexus 4, running the cm-13.0-20160520-NIGHTLY-mako. It stuck at the bootlogo, so I tried to reflash it in the twrp 2.8.7.0 recovery. But I got the error message "E:/ unable to mount /cache".
After that I was trying to solve this issue by wiping the cache, but I got the same error message -> The phone wasn't booting
From now on I did several things to solve my problem. I don't know the exact order.
- I've downloaded the Nexus Root Toolkit from WugFresh -> Tried to use the Flash Stock + Unroot Option with Soft-Bricked/Bootloop status enabled -> I choosed the 5.1.1 Factory Image -> In the cmd window, I get in every point the same error message "Falied (remote: flash write failure) -> I get the same message when I'm trying to manually flash each part of the factory image via fastboot
- Within the Toolkit I also tried to format cache, system and Userdata, but afther this I get the same error when trying to do the step before
- I think also used the Fastboot Flash options, but I'm not sure.
- After that I attempted to flash the cm13.zip via adb-sideload in TWRP. Here is a part from the error message I get:
"(...) could not detect filesystem for /dev/block/platform/msm_sdcc.1/by-name/system, assuming ext4
mount: failed to mount /dev/block/platform/msm_sdcc.1/by-name/system at /system: Invalid argument
unmount of /system failed: no such volume (...)
E: Error executing updater binary in zip 'sideload/package.zip'
E: Unable to mount '/data'
- In TWRP the Internal Storage is shown with 0mb
- Currently only the bootloader is working fine and I also can get a fastboot and adb connection to the phone
-> Loading the recovery is only possible by booting a recovery image in fastboot
Can somebody tell me if it is possible to restore my Nexus 4 and how to do it?
Thank you in advance :fingers-crossed:
PS: I hope I mentioned all the important points. If some information is missing, feel free to ask me.

Did you try to manually flash the latest rom?
Did you try to flash a stock 4.2 rom?
Tried different USB cables and USB ports?

audit13 said:
Did you try to manually flash the latest rom?
Did you try to flash a stock 4.2 rom?
Tried different USB cables and USB ports?
Click to expand...
Click to collapse
Thank you for your answer.
I tried to flash the newest cm13 in TWRP and with adb Sideload. I get the same error.
Also the 4.2 Stock rom doesn't work. Same problem as with the 5.1.1 factory image.
I also switched the cable and the USB ports, but it leads to the same error messages.

Try flashing the userdata.img file in fastboot. As soon as userdata finishes flashing, use the buttons to boot into recovery and perform a factory wipe. User the usedata.img file included with the stock ROM you flashed.

From what I see, your partitions got completely messed up. I reckon if it's fixable at all (assuming your chip ain't dead), the only thing that can fix it is fully reflashing everything via emergency mode. Now I can't seem to find the exact link, but I do know there was a thread on xda with instructions and everything. I'll keep digging around to see if I can find anything and then I'll link it here.

audit13 said:
Try flashing the userdata.img file in fastboot. As soon as userdata finishes flashing, use the buttons to boot into recovery and perform a factory wipe. User the usedata.img file included with the stock ROM you flashed.
Click to expand...
Click to collapse
I get the same error message as always: Falied (remote: flash write failure)
nerotNS said:
From what I see, your partitions got completely messed up. I reckon if it's fixable at all (assuming your chip ain't dead), the only thing that can fix it is fully reflashing everything via emergency mode. Now I can't seem to find the exact link, but I do know there was a thread on xda with instructions and everything. I'll keep digging around to see if I can find anything and then I'll link it here.
Click to expand...
Click to collapse
In Meanwhile I also think that my partitions are messed up. I saw one thread that could help me (http://forum.xda-developers.com/nexus-4/general/tutorial-how-to-unbrick-n4-t2347060), but some of the links are down.
Thank you for your help. :good:

Does the bootloader remain unlocked after rebooting? The emmc chip could be messed up and need replacement.

audit13 said:
Does the bootloader remain unlocked after rebooting? The emmc chip could be messed up and need replacement.
Click to expand...
Click to collapse
Unfortunately yes. After locking the bootloader via fastboot, the bootloader is marked as unlocked after rebooting.
Do I have to change the mainboard?

This confirms that the emmc chip is damaged and can only be fixed via a motherboard swap.
I had similar problems with two nexus 5 phones where I would unlock the bootloader but would always relock on reboot.

audit13 said:
This confirms that the emmc chip is damaged and can only be fixed via a motherboard swap.
I had similar problems with two nexus 5 phones where I would unlock the bootloader but would always relock on reboot.
Click to expand...
Click to collapse
Ok. Doesn't sound very good.
Nevertheless I will try the method of nerotNS, if he finds the thread.

tobi.king said:
I get the same error message as always: Falied (remote: flash write failure)
In Meanwhile I also think that my partitions are messed up. I saw one thread that could help me (http://forum.xda-developers.com/nexus-4/general/tutorial-how-to-unbrick-n4-t2347060), but some of the links are down.
Thank you for your help. :good:
Click to expand...
Click to collapse
Aye that's the thread I've been talking about. And yeah, the links are down for quite a while, I reckon the OP doesn't maintain it anymore. Anyways I used the tool once, I found all the files by Googling for like 4 hours or so - the most difficult one being the .dll file and getting the program itself to run. I'd upload them to you but there were on my C disk on my main rig and that got wiped when I reinstalled Windows :S I'm sure the files are on the net even now tho, I remember getting the .dll file from some Chinese website, Chrome's translator gave me enough info to actually download the file. Once I got it up and running the flash was OK, I've tested the method from that thread myself, the only problem is getting the files from the links that are down. I wish you good luck in your search for them, I know what an awful feeling it is for your nexus to die, my mako is still my daily driver, still kickin' ass
tobi.king said:
Ok. Doesn't sound very good.
Nevertheless I will try the method of nerotNS, if he finds the thread.
Click to expand...
Click to collapse
I did however have to change the motherboard out, since, while the flash was ok, the chip was not, so it didn't help much. I had an issue with my /data partition where it was completely gone, and the while filesystem got messed up, the only thing I could boot to was bootloader and even that only while on charger. Eventually I swapped my motherboard with a friends who didn't need her nexus 4 anymore and now it's ok. I suggest you first attempt the method from that link and if that fails, then you should resort to getting a new motherboard, but imo only if you can get it either dirt cheap or in a way like I did. Caching out around 100$ for a new nexus 4 mb, with phones like nexus 5X 32Gb costing 300$ is not a good investment if you ask me.

nerotNS said:
Aye that's the thread I've been talking about. And yeah, the links are down for quite a while, I reckon the OP doesn't maintain it anymore. Anyways I used the tool once, I found all the files by Googling for like 4 hours or so - the most difficult one being the .dll file and getting the program itself to run. I'd upload them to you but there were on my C disk on my main rig and that got wiped when I reinstalled Windows :S I'm sure the files are on the net even now tho, I remember getting the .dll file from some Chinese website, Chrome's translator gave me enough info to actually download the file. Once I got it up and running the flash was OK, I've tested the method from that thread myself, the only problem is getting the files from the links that are down. I wish you good luck in your search for them, I know what an awful feeling it is for your nexus to die, my mako is still my daily driver, still kickin' ass
I did however have to change the motherboard out, since, while the flash was ok, the chip was not, so it didn't help much. I had an issue with my /data partition where it was completely gone, and the while filesystem got messed up, the only thing I could boot to was bootloader and even that only while on charger. Eventually I swapped my motherboard with a friends who didn't need her nexus 4 anymore and now it's ok. I suggest you first attempt the method from that link and if that fails, then you should resort to getting a new motherboard, but imo only if you can get it either dirt cheap or in a way like I did. Caching out around 100$ for a new nexus 4 mb, with phones like nexus 5X 32Gb costing 300$ is not a good investment if you ask me.
Click to expand...
Click to collapse
I found all the necessary files for doing the method subscribed in the thread, but afther flashing the firmware nothing changed. Only thing that worked was the bootloader, everthing else still wasn't working.
Fortunately I had a broken Nexus 4 from a friend. So I switched both mainboards and my Phone is working again
Thank you for your help.

tobi.king said:
I found all the necessary files for doing the method subscribed in the thread, but afther flashing the firmware nothing changed. Only thing that worked was the bootloader, everthing else still wasn't working.
Fortunately I had a broken Nexus 4 from a friend. So I switched both mainboards and my Phone is working again
Thank you for your help.
Click to expand...
Click to collapse
Awesome, glad to be of service

Encryption unsuccessful

Running on stock 6.0.1 MMB29M
locked bootloader
after recovery reset, the phone went into " Encryption unsuccessful" screen. Even after press reset or do factory reset in recovery again, the phone still bootloop into this page.
Could someone help?
Thanks.

laofan said:
Running on stock 6.0.1 MMB29M
locked bootloader
after recovery reset, the phone went into " Encryption unsuccessful" screen. Even after press reset or do factory reset in recovery again, the phone still bootloop into this page.
Could someone help?
Thanks.
Click to expand...
Click to collapse
Hello... Try sideloading a full OTA of your choice from here: https://developers.google.com/android/ota#angler
It needs to be newer than the installed version. Not sure it will solve your issue though. Maybe someone else will chime in with a better solution...
If nothing works, RMA your device.
Good luck...

Thanks for the advice.
I tried to manually flash OTA but it falied because of the locked bootloader.
I am not sure if there is anyone could point me to do it via ADB. I tried using ADB but the phone is not recognized by my computer yet.
5.1 said:
Hello... Try sideloading a full OTA of your choice from here: https://developers.google.com/android/ota#angler
It needs to be newer than the installed version. Not sure it will solve your issue though. Maybe someone else will chime in with a better solution...
If nothing works, RMA your device.
Good luck...
Click to expand...
Click to collapse

laofan said:
Thanks for the advice.
I tried to manually flash OTA but it falied because of the locked bootloader.
I am not sure if there is anyone could point me to do it via ADB. I tried using ADB but the phone is not recognized by my computer yet.
Click to expand...
Click to collapse
Hey...
Reboot into Bootloader. Select recovery mode with the volume rocker and press power.
Once you see the Android guy laying down with his belly opened, press power and tap volume up once.
On the menu select: apply update from ADB
From here type in a command prompt:
adb sideload "name of the full OTA zip you downloaded without quote"
Supposing you have prior knowledge with ADB. Let me know if something is not clear here...
Good luck...

I finally get ADB recognized Nexus 6p. But the ota stop flash at 46%. failed to read command: No error.
5.1 said:
Hey...
Reboot into Bootloader. Select recovery mode with the volume rocker and press power.
Once you see the Android guy laying down with his belly opened, press power and tap volume up once.
On the menu select: apply update from ADB
From here type in a command prompt:
adb sideload "name of the full OTA zip you downloaded without quote"
Supposing you have prior knowledge with ADB. Let me know if something is not clear here...
Good luck...
Click to expand...
Click to collapse

laofan said:
I finally get ADB recognized Nexus 6p. But the ota stop flash at 46%. failed to read command: No error.
Click to expand...
Click to collapse
You might have to RMA. I believe "no command" means the emmc has died.

dieselbuddeh said:
You might have to RMA. I believe "no command" means the emmc has died.
Click to expand...
Click to collapse
That is too bad. The warranty was expired in January.... It can't be RMA.... I wished there are some hopes there

laofan said:
That is too bad. The warranty was expired in January.... It can't be RMA.... I wished there are some hopes there
Click to expand...
Click to collapse
Hello...
Try sideloading the 7.1.2 OTA. Nothing to loose... If it fails yet, sorry, I don't know what else to do.
Good luck..

laofan said:
That is too bad. The warranty was expired in January.... It can't be RMA.... I wished there are some hopes there
Click to expand...
Click to collapse
If you bought the phone direct from Google, you will likely get a one time exception.

v12xke said:
If you bought the phone direct from Google, you will likely get a one time exception.
Click to expand...
Click to collapse
Yes, call them anyway if you purchased from Google. I was 5 months out of warranty for my 6p and they replaced it because I was having battery issues.

5.1 said:
Hello...
Try sideloading the 7.1.2 OTA. Nothing to loose... If it fails yet, sorry, I don't know what else to do.
Good luck..
Click to expand...
Click to collapse
I almost tried all the major OTA, none of them could pass 46%... oh well......
v12xke said:
If you bought the phone direct from Google, you will likely get a one time exception.
Click to expand...
Click to collapse
tommyg562000 said:
Yes, call them anyway if you purchased from Google. I was 5 months out of warranty for my 6p and they replaced it because I was having battery issues.
Click to expand...
Click to collapse
It is not from google. And the warranty ended in January... I am fxxked.....

Probably so. There is one guy who found a 6P with a shattered screen for sale and paid a local repair shop to have the motherboard swapped out. Claims it cost him less than USD $100 but he is in South Korea. You're probably better off cutting your losses and finding another phone... after Huawei tells you NO three times.

v12xke said:
Probably so. There is one guy who found a 6P with a shattered screen for sale and paid a local repair shop to have the motherboard swapped out. Claims it cost him less than USD $100 but he is in South Korea. You're probably better off cutting your losses and finding another phone... after Huawei tells you NO three times.
Click to expand...
Click to collapse
posted it on craigslist now.
( I noticed that you are in the Woodlands area. I missed the time when I am in Houston. One of the best memories)

just a follow-up to somebody might see encounter the same thing. I was not able to fix the phone.
With a locked bootloader and "encryption unsuccessful" page, you might try warranty first. If that does not work, you might want to take rescue OTA from google and flash it in recovery via " install update via ADB".
Please be aware that rescue OTA is different from system image and should be flash via ADB in recovery.
Good luck.

laofan said:
just a follow-up to somebody might see encounter the same thing. I was not able to fix the phone.
With a locked bootloader and "encryption unsuccessful" page, you might try warranty first. If that does not work, you might want to take rescue OTA from google and flash it in recovery via " install update via ADB".
Please be aware that rescue OTA is different from system image and should be flash via ADB in recovery.
Good luck.
Click to expand...
Click to collapse
Hello,
What rescue OTA? Something different than the usual OTA you would sideload with ADB?
Cheers...

5.1 said:
Hello,
What rescue OTA? Something different than the usual OTA you would sideload with ADB?
Cheers...
Click to expand...
Click to collapse
Here are Rescue OTA. One would need to flash it with ADB in recovery. https://developers.google.com/android/ota
The following one is firmware/factory image. One would need to flash it with fastboot while in bootloader mode : https://developers.google.com/android/images
Use the correct zip file according to your flashing mode ( recovery or bootloader)

laofan said:
Here are Rescue OTA. One would need to flash it with ADB in recovery. https://developers.google.com/android/ota
The following one is firmware/factory image. One would need to flash it with fastboot while in bootloader mode : https://developers.google.com/android/images
Use the correct zip file according to your flashing mode ( recovery or bootloader)
Click to expand...
Click to collapse
Hello,
I see nothing different than hmm an OTA here. I thought that was a "special" OTA, but no.
Not sure why it's called rescue OTA, lol.
Thanks for the links, but i know exactly what an OTA and a factory image are. :good:
Thanks...

Hello!
I have the same "Encryption unsuccessful" issue. It happened many times recently. First I replaced the battery, because it produced early sudden shutdown at 30-40%, and could run only for a few hours from 100% to 40%.
The new battery is enough for 30-40 hours as I use it, and can operate the phone down to 1-2% before shutting down.
But if I have to restart the phone, the encryption unsuccessful problem still comes up randomly after battery replacement. I can restart several times without problem, then randomly just fails. Mostly after software updates I guess... I have stock firmware, stock rom, etc. the only thing was made that I have installed TWRP, and wiped user data. Hope that helps. Can it be the defect of the emmc ? If so, how shall I diagnose it?
I'm very newbie android user, I changed from Windows Phone ( ) only a few months ago...
The question is what could cause the Encryption unsuccessful error? It's interesting, that if I enter any random numbers as unlock code, the phone tells that it appears to be valid, but unfortunately cannot decrypt data.
So I would like only to disable forced encryption, maybe that helps. Could someone point me to the right direction about what exactly should I do? Is it enough to flash a modded kernel to disable encryption? I don't want to root, or experiment with custom roms and I would stick to the factory firmware as much as I can, but without encryption of corse...
thanks!

fredmoro said:
Hello!
I have the same "Encryption unsuccessful" issue. It happened many times recently. First I replaced the battery, because it produced early sudden shutdown at 30-40%, and could run only for a few hours from 100% to 40%.
The new battery is enough for 30-40 hours as I use it, and can operate the phone down to 1-2% before shutting down.
But if I have to restart the phone, the encryption unsuccessful problem still comes up randomly after battery replacement. I can restart several times without problem, then randomly just fails. Mostly after software updates I guess... I have stock firmware, stock rom, etc. the only thing was made that I have installed TWRP, and wiped user data. Hope that helps. Can it be the defect of the emmc ? If so, how shall I diagnose it?
I'm very newbie android user, I changed from Windows Phone ( ) only a few months ago...
The question is what could cause the Encryption unsuccessful error? It's interesting, that if I enter any random numbers as unlock code, the phone tells that it appears to be valid, but unfortunately cannot decrypt data.
So I would like only to disable forced encryption, maybe that helps. Could someone point me to the right direction about what exactly should I do? Is it enough to flash a modded kernel to disable encryption? I don't want to root, or experiment with custom roms and I would stick to the factory firmware as much as I can, but without encryption of corse...
thanks!
Click to expand...
Click to collapse
Same. The data decryption being unsuccessful happened to me as well on stock oreo 8.1.0. not rooted
Anyone know how to fix it and doesn't happen again?
Thanks