No OS on my phone after normal factory reset - Moto Z4 Questions & Answers

Preformed a factory reset today on my phone and when it booted back on I have a black screen with red lettering saying no OS could be found. Not really sure what to do. If you have an suggestions please let me know

joshspringer05 said:
Preformed a factory reset today on my phone and when it booted back on I have a black screen with red lettering saying no OS could be found. Not really sure what to do. If you have an suggestions please let me know
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Send it back to Motorola for repairs

https://support.lenovo.com/us/en/downloads/ds101291 use this tool and it may be able to recover it.

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Stuck at "erasing" when doing a factory reset?

Anyone else had issues performing factory resets? My Nexus 5 seems incapable of completing it. So far I have tried doing a factory reset from the settings menu 4 times. Every single time it locks up on the erasing step. I don't mean it takes a little longer. I have let it sit for almost half an hour and the little android robot sits there taunting me.
Every time I have had to manually go into the bootloader and sideload a factory image, which works fine.
Any ideas why this problem is occurring? Faulty memory maybe?
Same issue here, phone is getting nice and warm but the little robot just sits there twiddling his antennae. Forced restart either normally or into recovery mode lands me right back on the erasing screen, looks like nothings going to happen unless I intervene another way. Any ideas?
Try pushing the system.img using fastboot. Might be best to start over and do a clean install.
Have you tried doing a factory reset in recovery instead?
Sent from my Nexus 5 using Tapatalk
Same problem
I have the same problem with the loop at the erasing screen. It will not go into recovery so that I can fix it. I tried flashing the Stock Rom again but no use. Please help me or at least give me some pointers what to try next.
jizkidjnr said:
Same issue here, phone is getting nice and warm but the little robot just sits there twiddling his antennae. Forced restart either normally or into recovery mode lands me right back on the erasing screen, looks like nothings going to happen unless I intervene another way. Any ideas?
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martinancevski said:
I have the same problem with the loop at the erasing screen. It will not go into recovery so that I can fix it. I tried flashing the Stock Rom again but no use. Please help me or at least give me some pointers what to try next.
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I have the same problem
I'm sure you wait a long time...but if not, mine probably took 10-15 minutes to finish...
Sent from my Nexus 5 using xda app-developers app
i have the same problem
What is your recovery? Version # also? How did you root? <--- this goes to the rest of you guys too because it seems like its happening to more than one person.
Follow this: Maybe flash the stock recovery found in here http://forum.xda-developers.com/showthread.php?t=2513701
fastboot flash recovery C:/image-hammerhead-krt16m/recovery.img
^^ the command
edit: on second thought start over.
lpforte said:
Anyone else had issues performing factory resets? My Nexus 5 seems incapable of completing it. So far I have tried doing a factory reset from the settings menu 4 times. Every single time it locks up on the erasing step. I don't mean it takes a little longer. I have let it sit for almost half an hour and the little android robot sits there taunting me.
Every time I have had to manually go into the bootloader and sideload a factory image, which works fine.
Any ideas why this problem is occurring? Faulty memory maybe?
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Click to collapse
hello
I have the same exact problem
I'm completely stock and I want to reset all so I do factory reset from menu setting, backup & reset
And since, my nexus stucked in "erasing...."
I have tried flashing factory image according to this guide, succeeded, but then still stucked in android logo with endless progress bar (but this time without "erasing....")
Need help how to restore it
All I want is to factory reset
How did you actually sideload factory image?
thanks
iori said:
hello
I have the same exact problem
I'm completely stock and I want to reset all so I do factory reset from menu setting, backup & reset
And since, my nexus stucked in "erasing...."
I have tried flashing factory image according to this guide, succeeded, but then still stucked in android logo with endless progress bar (but this time without "erasing....")
Need help how to restore it
All I want is to factory reset
How did you actually sideload factory image?
thanks
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Click to collapse
ADB sideload: place the rom you want to flash in the fastboot folder and in the phones recovery select adb sideload, then on the pc in cmd type: adb sideload namerom.zip and it will start flashing.
gee2012 said:
ADB sideload: place the rom you want to flash in the fastboot folder and in the phones recovery select adb sideload, then on the pc in cmd type: adb sideload namerom.zip and it will start flashing.
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thanks
but i finally found out that the stock recovery was somehow corrupted after factory reset
then I unlocked the bootloader and flashed TWRP recovery, and voila! my device booted normally
Nexus 5 hung at reset
iori said:
hello
I have the same exact problem
I'm completely stock and I want to reset all so I do factory reset from menu setting, backup & reset
And since, my nexus stucked in "erasing...."
I have tried flashing factory image according to this guide, succeeded, but then still stucked in android logo with endless progress bar (but this time without "erasing....")
Need help how to restore it
All I want is to factory reset
How did you actually sideload factory image?
thanks
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Click to collapse
Exactly the same problem here. Nexus 5 running 4.4.2 kept powering off randomly roughly once a day. Attempted a factory reset and it got stuck at erasing. Having unlocked the bootloader and following the steps to unlock and reboot, I have a progress bar with the animated android icon, apparently stuck at the same stage, but without the "erasing" caption.
As far as I'm concerned, I can nothing with the phone at present short of taking it back, though they'll likely take issue with my attempts to rectify myself
mannschaftpag said:
Exactly the same problem here. Nexus 5 running 4.4.2 kept powering off randomly roughly once a day. Attempted a factory reset and it got stuck at erasing. Having unlocked the bootloader and following the steps to unlock and reboot, I have a progress bar with the animated android icon, apparently stuck at the same stage, but without the "erasing" caption.
As far as I'm concerned, I can nothing with the phone at present short of taking it back, though they'll likely take issue with my attempts to rectify myself
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Click to collapse
I'll add that I've also tried the Nexus Root Toolkit v1.8.0 to flash stock. Appears to go fine, recreating the file system and loading software, then as soon as it gets to the "erasing cache" step it just sits there for hours and makes no progress.
I know I probably shouldn't promote toolkits but you can always try this. Seems to have worked for a lot of people.
http://forum.xda-developers.com/showthread.php?t=2513937
Sent from The Deathstar
Same thing happened to me yesterday. My N5 is rooted, running stock rom and recovery. I had some corrupted app date showing in Titanium that I could not remove that were causing a Play store issue for me. I backed up my phone with TB and ran a factory reset in settings. The phone was stuck on the 'erasing' screen for maybe 20 minutes, so I put the phone in fastboot and from there back into recovery. This took me back to the 'erasing' screen to my dismay. I put the phone down and started searching for a solution online, but then I noticed after about 7 minutes the erase process had finally finished on its own and the phone rebooted normally again.
Based on what others are saying in this thread it appears the factory reset process via settings or stock recovery can hang sometimes. If you power off, start the phone in fastboot and select recovery again, I'm guessing the factory reset process restarts and hopefully it will then work properly the next time, like it did for me.
Well when I did a factory reset from settings, it took nearly 20-25 minutes to finish. The next time I did a reset, it completed within 10 minutes
I guess this problem occurs randomly.
Be patient
My guess is that you just need to be patient -- my device took nearly 45 minutes to reset. It seems to me that the time required is proportional to either the amount of data or the number of files you have on the device. My device had a mix of large files (such as musics and photos) and many many small files (sensor data log files), so it's hard for me to say which of those contributed more to the long reset time.
Based on what others are saying in this thread it appears the factory reset process via settings or stock recovery can hang sometimes. If you power off, start the phone in fastboot and select recovery again, I'm guessing the factory reset process restarts and hopefully it will then work properly the next time, like it did for me.
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This worked for me too. On the initial 'Return to factory defaults' it got stuck for about 45 minutes. I then follow the advice above:
- Put the N5 in Fastboot by pressing: Vol. Up + Vol. Down + Power
- Select: Recovery and press on Power to proceed
- Phone reboots, still into the 'Androidman' but it seems that the 'Return to factory defaults' also restarts.
- Wait about 10 minutes and the Phone powers down automatically. Upon startup you enter the 'Initial configuration menu' so the factory reset has been completed.
Still stuck on Erasing screen, running out of options
Hello,
I am a newbie with zero developer knowledge and received my Nexus 5 in the mail yesterday. I liked the phone specs and that is the only reason I got it. I left it alone while it charged up and the first thing I did once it was finished was perform a Factory Reset (it was a "like new" phone so I just wanted to be safe) and have been stuck on the Erasing screen ever since. Pressing Vol- and Power button does take me to the bootloader screen, however, any option I choose by pushing the power button, such as Recovery Mode, sends me back to the Erasing screen. Pushing Vol+, Vol-, and Power shuts the phone off completely. Holding the Power button down does nothing more than restart the phone into the Erasing screen. I have also let the phone die twice and as soon as it has enough juice to come back on, it goes straight to the Erasing screen. Everything on the phone is stock and it is completely unrooted. The bootloader screen also indicates it is unlocked. I have attempted to flash it as per instructions I have found on here but I am unable to download the stock factory images. It gets to about 90% before the install fails and I have tried to install three times already. I do have the 15 Second ADB installed, however. I assumed the install of the factory images failed because I don't have WiFi and I'm running completely off of limited 3G data (I live in the middle of no where with no high speed internet to speak of). So in lieu of all that I have attempted, is there ANYTHING at all that can be done to get the phone off of this Erasing screen? Or do I just need to try and return it because it's useless at this point? I did at first let the process run but it's now been 24 hours stuck on this Erasing screen with no improvement. I'm fairly certain it runs KitKat 4.4.0.

[URGENT] Every reboot results in a factory reset

So today my droid started messing up, home and recents button didnt work. Google play store and whatnot couldnt access data, the signal status bar at the top was just grey.
So i factory reset it. During the reset it just sat there on the little screen with the spinning hexball thing for like an hour so i shut the phone off. Now every time the phone boots it just tries to wipe it again unless i go into the boot menu and hit normal boot.
Running stock rom and whatnot, but im rooted.
I know that theres a flag somewhere that it reads on boot saying to wipe it, but dang if i know what to change.
Thanks in advance
Well i unrooted my phone and tried to let it redo the factory reset again, and it still just wont do anything.
jombo2323 said:
home and recents button didnt work
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When this happens to me, it's because of a bad flash and a factory reset won't fix it. I would suggest reflashing stock...
coolloser said:
When this happens to me, it's because of a bad flash and a factory reset won't fix it. I would suggest reflashing stock...
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I dont have a custom recovery or an unlocked bootloader.
I managed to get the problem sorted out through some unrooting and some non stock system file deletion. Installed safestrap and got blurry hd running on it now.
Thanks.

Factory reset loop

Hello!
Today I wanted to reset my phone, I backed up everything and tapped on "reset". Now my phone has been showing an Android logo and says erasing for at least a half an hour. I tried to reset from recovery also but when I chose Recovery it displayed the same Android again.
I am running stock Android 4.4.2 with stock recovery. Bootloader is also locked. I have great experience in Android, however I have never faced an issue like this! Please help, thank you!
I'd recommend to reset via factory image. There's a tutorial in the General section
experience7 said:
I'd recommend to reset via factory image. There's a tutorial in the General section
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It seems I was a bit impatient. Now it is showing the bootlogo! I didn't suppose that it takes so much time! Btw thanks for the quick answer!

[Q] Hard Bricked, Security Error Boot Loop D800 after Lollipop OTA attempt.

Hey XDA,
I have a D800 that is totally stock. I have no custom recovery, and have never rooted the device.
A couple days ago I got the notification for an OTA update. I hit the notification, and rebooted the phone. It started the update process. It got through the first step. When it started the second part of the update, a black box popped up, and a code like "ERR 0x04ff" or something like that popped up. The phone rebooted, and got stuck in a boot loop with a "Security Error." The phone will boot up, show the LG logo, then show a slightly different LG logo with "Security Error" underneath it, then reboot and start the process over. I started messing around with the power button and volume keys to see what different modes I could boot it into. Initially I could boot it to the Factory data reset screen, the Hardware Mode Keys screen, and I got it into Download mode once. I didn't have any of the software or files available at the time to do anything with Download mode, so I opted to try a Factory reset. The phone attempted a Factory Reset. The little android with wiggly ears, and the spinny cube thingy popped up for about 4 seconds, and the phone rebooted.
Since trying that initial Factory Reset, I have been unable to get the phone into Download mode. I've tried doing the Factory Reset multiple times to no avail. I have not seen fastboot at all.
At this point, the only thing I can do with the phone is boot it to the Factory Data Reset screen, and to the Hardware Keys Mode screen. It will not do a factory reset. The android pops up for about 1-2 seconds, and the phone reboots, and goes right back to the boot loop with the security error.
I'm at a loss at this point. I've called AT&T, and unfortunately my phone is out of warranty by about 3 weeks. So they can't just mail me a replacement. Does anyone have any ideas? I can't seem to get it to be recognized by my PC, on Windows or Ubuntu. I get the feeling that it's just hard bricked, and there really isn't anything else I can try.
Any suggestions would be greatly appreciated
TL-DR: Totally stock D800, no custom recovery or root. Security Error Boot Loop after OTA attempt. No download mode or fastboot, factory reset is ineffective. Not recognized by PC. What do I do now?
bob51dole said:
Hey XDA,
I have a D800 that is totally stock. I have no custom recovery, and have never rooted the device.
A couple days ago I got the notification for an OTA update. I hit the notification, and rebooted the phone. It started the update process. It got through the first step. When it started the second part of the update, a black box popped up, and a code like "ERR 0x04ff" or something like that popped up. The phone rebooted, and got stuck in a boot loop with a "Security Error." The phone will boot up, show the LG logo, then show a slightly different LG logo with "Security Error" underneath it, then reboot and start the process over. I started messing around with the power button and volume keys to see what different modes I could boot it into. Initially I could boot it to the Factory data reset screen, the Hardware Mode Keys screen, and I got it into Download mode once. I didn't have any of the software or files available at the time to do anything with Download mode, so I opted to try a Factory reset. The phone attempted a Factory Reset. The little android with wiggly ears, and the spinny cube thingy popped up for about 4 seconds, and the phone rebooted.
Since trying that initial Factory Reset, I have been unable to get the phone into Download mode. I've tried doing the Factory Reset multiple times to no avail. I have not seen fastboot at all.
At this point, the only thing I can do with the phone is boot it to the Factory Data Reset screen, and to the Hardware Keys Mode screen. It will not do a factory reset. The android pops up for about 1-2 seconds, and the phone reboots, and goes right back to the boot loop with the security error.
I'm at a loss at this point. I've called AT&T, and unfortunately my phone is out of warranty by about 3 weeks. So they can't just mail me a replacement. Does anyone have any ideas? I can't seem to get it to be recognized by my PC, on Windows or Ubuntu. I get the feeling that it's just hard bricked, and there really isn't anything else I can try.
Any suggestions would be greatly appreciated
TL-DR: Totally stock D800, no custom recovery or root. Security Error Boot Loop after OTA attempt. No download mode or fastboot, factory reset is ineffective. Not recognized by PC. What do I do now?
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Try this guide, it should help. Good luck.
http://forum.xda-developers.com/showthread.php?t=2662445
Sent from my LG-D800
Swetnes said:
Try this guide, it should help. Good luck.
http://forum.xda-developers.com/showthread.php?t=2662445
Sent from my LG-D800
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Thanks for the reply. I was about to reply saying my phone wouldn't go into download mode, but then I randomly decided to use a different usb port, and now it went into download mode.
I'll give it a shot now and see what i can do
Ok, It seems I'm back up and running. I followed this guide http://forum.xda-developers.com/showthread.php?t=2432476 which re-flashed me to 4.2.2. I'm going to try and upgrade using LG PC Suite from my laptop, and see if I have better luck this time.
Lesson learned, try every USB port when trying to boot into download mode.
Thanks for the help

The tab wont turn on

Hello....
After factory reset, my tab wont turn on....
Please help
Did you charged long enough? Is it stone dead with no signs of life or bootloop(Samsung logo loop)? Does it receive messages?
I am affraid not enoug charge or batteray....
This is the massage
I did the factory reset...
No respon even i press power+volume up/down
Now black screen...
Had you rooted or installed custom rom/recovery before that?
No.....
So you did not tampered with the device, all official software, one day wanna factory reset, the battery went dead midway, and the tab died? Purely asking.
(Your warranty is probably expired as you are asking here.)
I know this is an old thread but i was just reading now, and perhaps it's helpful to anyone else in the future. I'm not sure what the problem here, but when i froze a service in titanium, i had the same exactly message although tablet was booting to os. You couldn't even bypass locksceen. What i did was boot in twrp and flash a file (i have posted in other thread) to unfreeze all apps. After this it booted.
So there is a service which creates this message and a problem. But if you are unrooted by reinstalling rom in odin it might work..

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