[Q] Help Please - Stuck on boot screen after factory image install - Nexus 4 Q&A, Help & Troubleshooting

Hope someone can help. I've tried updating my Nexus 4 to KitKat, and think I've borked it, as it is now stuck in the boot screen with the four coloured spinning circles.
Here's what I did:
Downloaded the 4.4 KRT16O Factory Image for Nexus 4 from Google Developers site
Unlocked the Bootloader on my Nexus 4
Went to Android SDK manager folder and Platform Tools.
Extracted the Factory Image to this folder
Enter comand prompt
Typed fastboot devices to ensure the phone is visible
Typed flash-all.bat
The phone re-boots, I get the spinning circles and nothing more.
I can get back to fastboot, and have tried reinstalling the Jelly bean image, but this also hangs at the boot screen. I've tried both Images and neither seem to get past their relevant boot screens. In both instances I can get back to fastboot.
I haven't installed a custom recovery
What to do?
I'd be grateful of any help.

dreamypuma said:
Hope someone can help. I've tried updating my Nexus 4 to KitKat, and think I've borked it, as it is now stuck in the boot screen with the four coloured spinning circles.
Here's what I did:
Downloaded the 4.4 KRT16O Factory Image for Nexus 4 from Google Developers site
Unlocked the Bootloader on my Nexus 4
Went to Android SDK manager folder and Platform Tools.
Extracted the Factory Image to this folder
Enter comand prompt
Typed fastboot devices to ensure the phone is visible
Typed flash-all.bat
The phone re-boots, I get the spinning circles and nothing more.
I can get back to fastboot, and have tried reinstalling the Jelly bean image, but this also hangs at the boot screen. I've tried both Images and neither seem to get past their relevant boot screens. In both instances I can get back to fastboot.
I haven't installed a custom recovery
What to do?
I'd be grateful of any help.
Click to expand...
Click to collapse
Boot in bootloader, then select "recovery". When you get to an android laying on his back, press "Power+Volume UP" at the same time (don't hold. Just press). A menu should appear. Select "Data wipe/ Factory reset", and reboot.

abaaaabbbb63 said:
Boot in bootloader, then select "recovery". When you get to an android laying on his back, press "Power+Volume UP" at the same time (don't hold. Just press). A menu should appear. Select "Data wipe/ Factory reset", and reboot.
Click to expand...
Click to collapse
I had a thread yesterday on the same topic. http://forum.xda-developers.com/showthread.php?p=47490462#post47490462
hope that helps.

This may work
Hi, I encountered the same problem. I had the LTE baseband radio which was not being accepted in the flash-all.bat and it kept giving me in error in install and wont complete. I used nexus root tool kit to flash the radio img extracted from the 4.4 occam file using the advanced utilities in tool kit. After that I used the tool kit again and again to install the 4.4 but it kept getting stuck in the boot animation even after successful installs. I gave up and as a last resort tried the flashall.bat again. It went through smoothly since it detected the new radio and I let it hang in there for 10-15 mins in the boot animation and viola ! I had it installed.
Hope part of this may work for you.
---------- Post added at 01:40 PM ---------- Previous post was at 01:35 PM ----------
priyab said:
Hi, I encountered the same problem. I had the LTE baseband radio which was not being accepted in the flash-all.bat and it kept giving me in error in install and wont complete. I used nexus root tool kit to flash the radio img extracted from the 4.4 occam file using the advanced utilities in tool kit. After that I used the tool kit again and again to install the 4.4 but it kept getting stuck in the boot animation even after successful installs. I gave up and as a last resort tried the flashall.bat again. It went through smoothly since it detected the new radio and I let it hang in there for 10-15 mins in the boot animation and viola ! I had it installed.
Hope part of this may work for you.
Click to expand...
Click to collapse
Also delete your old folder of ADB, download a new one and reextract. Unzip the tar>tar directly in platform tools folder. Good luck

Follow this i too had the same prob bt got it resolved through this method. jst keep ur phone on bootloader/fastboot mode.. n run this toolkit
http://forum.xda-developers.com/showthread.php?t=2531374
Sent from my Nexus 4 using xda app-developers app

Just search the forum next time this problem is on every page and on every page and thread there is a solution...... You are not the first but hope you get it fixed

Install a custom recovery
clockwork or twrp

Related

[Q] Nexus root toolkit: back to stock no response

Short version first: I am trying to use the "back to stock" feature of Nexus Root Toolkit to flash a factory ROM to a soft-bricked Nexus 4. I get to a Window that says it is "booting up your freshly flashed stock device" but then nothing at all happens.
Longer story:
Today I used the Nexus Root Toolkit (NRT) to unlock and root my Nexus 4. NRT is great software and helped me through all the stages.
After I rooted successfully and restored my apps etc, I tried using an app called custom android font switcher to achieve some language related aims (installing Khmer font). Anyway, straight after that the phone restarted and I have been stuck at the X logo ever since (hours).
Now I've gone back to NRT to try and use its "back to stock" feature to recover my soft-bricked device. My phone is in bootloader mode. I have downloaded the appropriate factory image direct from google, pointed NRT to this. It gets past the next stage (hashcheck). Then it say please be patient while your file is extracted. Then it says checking fastboot status and finds the device connected. Then I press OK to flash the device. It opens a new command window titled "flashstock.bat" that says it is "booting up your freshly flashed stock device, be patient etc. However, nothing else happens either with this window or at the phone. There is no further action, even after 20-30mins. I've tried this several times.
Can anyone suggest anything I could do to help the process complete? Should NRT work for a Nexus 4, or do I have to look instead at adb / fastboot?
Found solution
Found solution, feel silly but am posting it here in case it helps someone else:
The factory image file I had downloaded from Google should have had a .TGZ extension but had been saved with a .TAR extension by my download manager (Internet Download Manager).
When I renamed the file, the process completed successfully. I can only assume that NRT "thought" it could unzip the TAR file, but could not actually extract any content out of it.
All the best.
aanon03 said:
Short version first: I am trying to use the "back to stock" feature of Nexus Root Toolkit to flash a factory ROM to a soft-bricked Nexus 4. I get to a Window that says it is "booting up your freshly flashed stock device" but then nothing at all happens.
Longer story:
Today I used the Nexus Root Toolkit (NRT) to unlock and root my Nexus 4. NRT is great software and helped me through all the stages.
After I rooted successfully and restored my apps etc, I tried using an app called custom android font switcher to achieve some language related aims (installing Khmer font). Anyway, straight after that the phone restarted and I have been stuck at the X logo ever since (hours).
Now I've gone back to NRT to try and use its "back to stock" feature to recover my soft-bricked device. My phone is in bootloader mode. I have downloaded the appropriate factory image direct from google, pointed NRT to this. It gets past the next stage (hashcheck). Then it say please be patient while your file is extracted. Then it says checking fastboot status and finds the device connected. Then I press OK to flash the device. It opens a new command window titled "flashstock.bat" that says it is "booting up your freshly flashed stock device, be patient etc. However, nothing else happens either with this window or at the phone. There is no further action, even after 20-30mins. I've tried this several times.
Can anyone suggest anything I could do to help the process complete? Should NRT work for a Nexus 4, or do I have to look instead at adb / fastboot?
Click to expand...
Click to collapse
Install adb in your pc and learn how to use fastboot commands.
It is easy and safe to mess with your phone and future android phones you might buy.
Sent from my Nexus 4 using xda premium
All you really needed to do was fastboot flash the system img. The font you flashed was installed there, then wipe cache and reboot.
Sent from my Nexus 4 using Xparent Cyan Tapatalk 2

[Q] Factory image restore fail : stuck at writing system

Hello everyone!
I tried to restore the stock image using Nexus 4 Tool Kit (both the original one and the Wug's one), and everytime I tried, the script stucked at "writing system".
I manually flashed system and userdata images with Wug's tool kit and everything went well but I only have 5Gb memory instead of 16.
Does anyone know why?
Try this http://forum.xda-developers.com/showthread.php?t=2033692
[HOW-TO] Fix internal storage if 16GB now shows 8GB
Sent from my Nexus 4
OP...
In future, don't use a toolkit. Do it yourself
I'm having a similar problem to the OP - I'm trying to do a factory restore, and am unable to flash the "system" image. I can't boot, recovery mode won't work anymore (I get a red warning sign instead)...
I think all of this has to do with me being naieve and following a youtube video instead of the CM wiki to install CM 10.1.
How can I unbrick my phone?
4OnTheFloor said:
I'm having a similar problem to the OP - I'm trying to do a factory restore, and am unable to flash the "system" image. I can't boot, recovery mode won't work anymore (I get a red warning sign instead)...
I think all of this has to do with me being naieve and following a youtube video instead of the CM wiki to install CM 10.1.
How can I unbrick my phone?
Click to expand...
Click to collapse
When going into recovery the warning sign is the splash screen for stock recovery. This likely means that you have not yet flashed a custom recovery yet, which is necessary to flash CM. First read this guide to unlock the bootloader (if you havent already), then flash a custom recovery (preferably TWRP). After you have installed the recovery, download CM as well as the latest gapps package and place them somewhere on your internal sd. Boot into recovery and go to the wipe menu, then swipe to factory reset. Finally flash the rom and gapps, and then reboot.
4OnTheFloor said:
I'm having a similar problem to the OP - I'm trying to do a factory restore, and am unable to flash the "system" image. I can't boot, recovery mode won't work anymore (I get a red warning sign instead)...
I think all of this has to do with me being naieve and following a youtube video instead of the CM wiki to install CM 10.1.
How can I unbrick my phone?
Click to expand...
Click to collapse
if you are doing a factory restore and DONT need to flash everything individually than don't. yes its good to know how to do it manually but if your flashing everything back just use the script that google provides.
reboot to bootloader/fastboot and run the flash-all.bat file and its all done for you. no toolkits no playing with commands that you dont know properly etc.
if you dont know how to do it right pick the least complicated option.
noobdeagle said:
if you are doing a factory restore and DONT need to flash everything individually than don't. yes its good to know how to do it manually but if your flashing everything back just use the script that google provides.
reboot to bootloader/fastboot and run the flash-all.bat file and its all done for you. no toolkits no playing with commands that you dont know properly etc.
if you dont know how to do it right pick the least complicated option.
Click to expand...
Click to collapse
I am using the .bat file... I've also tried the toolkit, and both appear to use the same basic procedure, and they stop at "writing system" no matter what.
Does anyone happen to know how the .bat file and toolkit get access to the phone? ...because I can't see it in adb (I'm guessing it's because I can't boot the phone.) However I can get into fastboot and recovery modes on the device.
I cannot get the device (nexus 4) to boot or connect in ADB mode to my computer. What can I do??
UPDATE - PROBLEM FIXED
I un-bricked my phone
SOLUTION this is what worked for me, your mileage may vary
Install ADB drivers, etc. from Android SDK (google how to do this)
Flash custom recovery (can be done easily with Nexus 4 Toolkit here on XDA) - I used TWRP Touch Recovery.
Once that is done, shut the phone off completely and boot into Fastboot (hold volume down and power)
Use volume keys to select Recovery Mode, then hit Power
In recovery mode:
Wipe > Advanced Wipe > Check off the box beside "System" > Swipe to Wipe
Go back to recovery mode main screen:
Wipe > Format Data > Follow the instructions on the screen
I think this step is what did it. When having problems with partitions, just format everything and start over
Now we should be able to write to the System partition, meaning you can flash a ROM and get your phone to boot again.
Follow the rest of these instructions to quickly flash the stock Android image from Google onto your phone.
Go back to recovery mode main screen, once again:
Reboot > Bootloader > Follow any additional instructions it gives you
Download Google Nexus 4 factory stock image "occam" (Google it)
When that is downloaded, open it with 7zip. Inside there are some files, one of which is called image-occam-jdq39.zip. Inside are some images - unzip those as well. You'll need the system.img file in a bit...
Using Wug's Nexus Root Toolkit (Google it - install it on your Windows PC):
Open the program
Launch advanced utilities
Hit the System button to permanently flash to System partition. Hit "ok" on the window that pops up.
Find the system.img file I mentioned back on step 10 and select that, when prompted, and open it.
If all went well, your device will now boot into the stock Android ROM.
noobdeagle said:
if you are doing a factory restore and DONT need to flash everything individually than don't. yes its good to know how to do it manually but if your flashing everything back just use the script that google provides.
reboot to bootloader/fastboot and run the flash-all.bat file and its all done for you. no toolkits no playing with commands that you dont know properly etc.
if you dont know how to do it right pick the least complicated option.
Click to expand...
Click to collapse
I too am stuck at writing system. I"m not sure what you mean when you said "run flash-all.bat". Where do I get that?
Thanks.
Soundchasr said:
I too am stuck at writing system. I"m not sure what you mean when you said "run flash-all.bat". Where do I get that?
Thanks.
Click to expand...
Click to collapse
The system takes awhile to write, how long have you guys wait before you say its "stuck"?
Sent from my Nexus 4 using Tapatalk 4 Beta
About 20-25 minutes.
Yea, that's way too long.
Sent from my Nexus 4 using Tapatalk 4 Beta
Stuck, but working
I was flashing the 4.3 image using the included flash-all.bat (but I edited it to remove -w parameter so that it wouldn't wipe my data).
In the 'writing system' step, the command window got stuck. In the phone screen, at the bottom, it said 'writing' for a while and then that also went away. I waited for ~40 min, and still the command window was at 'writing system', so I closed the command window, and booted my phone by selecting start from the bootloader.
And voila! It worked. Booted in under a minute, the flash was a success, I got JB 4.3 without losing any of my data.
Lost my root and custom recovery though. But I knew that would happen. Gonna try SuperSu for 4.3 now, after flashing TWRP.
Had the same problem, tried everything! With my tiny powers, but it kept stucking at "writing system" . I thought that I bricked the device, so for the last hope, I installed WugFresh's Nexus Toolkit and did a Fast Stock + unroot. It Installed everything flawlessly! I'm gonna donate to that guy! He's a godsend savior.

[GUIDE] How to flash Factory Images from Google for the Nexus devices

Guide also available here: http://rirozizo.blogspot.com/2013/11/guide-how-to-flash-factory-images-from.html (WITH PICTURES )
Sit back, relax, don't be scared, it's fast, and easy...
So you want to upgrade your android version, or you're rooted and on a custom ROM... either way, you want an upgraded version of your android, you want it official, unrooted, but you can't wait for OTA.
Go to developers.google.com/android/nexus/images and download the appropriate image for your device, pick the android version you want.
Preparing yourself
-You'll get a tgz file, extract that
--There's a file in that extracted tgz, a zip file, when you extract it it's gonna show you all the .img files we're interested in.
-Extract that file.
--Now you'll see all the .img files... that's what we're intrested in.
Click to expand...
Click to collapse
Let's get to business!
--I really hate anything automated (exceptions apply), so let's do it the manual way.
-Boot your nexus into bootloader by plugging it in the PC, and typing this into the cmd:
adb reboot bootloader
--When you're in bootloader, leave it there.
-Type this:
fastboot devices
--Check if your device is shown. If it is, type these, and let every command finish before typing the next one:
fastboot flash system system.img
fastboot flash userdata userdata.img NOTE: This WILL wipe your DATA!
fastboot flash recovery recovery.img
fastboot flash boot boot.img
Click to expand...
Click to collapse
Now that every command has finished, you flashed your factory image. so reboot.
when it boots, finish the setup and reboot once again and let it settle for about 5 minutes to let android relax after some hard work.
nexus 4 - stuck in boot loop
My nexus 4 is stuck in boot loop.
Will this method work on my phone - usb debugger was not on when the phone went in x loop
ashu347 said:
My nexus 4 is stuck in boot loop.
Will this method work on my phone - usb debugger was not on when the phone went in x loop
Click to expand...
Click to collapse
What did you do to get into a bootloop? A factory reset in the stock recovery will normally get you past a bootloop, but it will wipe your device
Sent from my Nexus 5 using XDA Free mobile app
---------- Post added at 08:19 PM ---------- Previous post was at 08:18 PM ----------
Good guide
Sent from my Nexus 5 using XDA Free mobile app
nexus 4 - stuck in boot loop
Okay..this is how it happened...
when i checked my mobile couple of days back ..apps were crashing..."[app] stopped working" message was coming for many of the goggle apps....In past - a restart used to fix this.
I restarted my phone - but it got stuck in the bootloop (circles)
What i need next
went in bootloader menu (power and - volume)
selected factory reset
power button
blank black screen
nothing happened for a long time
then i searched on google ..downloaded SDK, nexus 4 image ..and tried to flash ..evrything went fine I till tried to flash the bootloader image and got message "failed (remote flash write failure)"
And I am stuck at this stage please advise
Now when i retstart phone goes directly into bootloader menu - may as i have erased other stuff while flashing..
Please help me ---- I do not want to loose my phone....
Yes, it will do. You can skid the userdata.img to save the data.
ashu347 said:
My nexus 4 is stuck in boot loop.
Will this method work on my phone - usb debugger was not on when the phone went in x loop
Click to expand...
Click to collapse

Stuck In BootLoop While updating lollipop

i used nexus root tool kit to update nexus 4 from 4.4 to 5.0... all done in pc but mobile is stuck in boot loop. can anyone tell me how can i restore my phone to normal working...
Please help me i am noob here
is there any one who can help me here
i thought i will get ans with in 1hr... still waiting if someone can help
letsnexus said:
i thought i will get ans with in 1hr... still waiting if someone can help
Click to expand...
Click to collapse
This is why we don't recommended using tool kits. You should try flashing the factory image using fastboot.
Sent from my Nexus 9 using XDA Free mobile app
Same here, i tried re-flashing many times. Darn that nexus root toolkit
any suggetion or link which can help me to use fastboot use and install stock rom
thank alot for help
I am currently in the same position ! Used a toolkit too, always have.
This is why you never use a Toolkit, it's always been mentioned around in XDA that this has always been a developer website of learning and knowledge. You must always know what goes on behind than just blindly flashing things. It's a rule of thumb that you're more likely to brick your phone with a Toolkit than by yourself. Easiest step as follows.
1. Download factory image
2. Download ADB files
3. Make a folder and extract the adb files and factory image inside the same folder.
4. Plug the phone in bootloader mode or simply type adb reboot bootloader (Developer options must be enabled and USB Debugging) by exiting the folder, holding shift, right clicking the folder and pressing open command window and typing the command.
5. Every factory image comes with a flashall.bat, double click it and voila. Updates like it should. (User data will be wiped)
If you don't want your userdata to be wiped, simply open flashall.bat with notepad++, erase the '-w' in "fastboot -w update image" and save the file and launch it again.
Sent from my HTC One_M8 using Tapatalk
I will try that way later when I get in, I would have assumed that the toolkit did exactly those steps though, just an easy to use frontend
hazwheel said:
I will try that way later when I get in, I would have assumed that the toolkit did exactly those steps though, just an easy to use frontend
Click to expand...
Click to collapse
Go to stock recovery and do factory data reset and reboot phone. First time boot takes very long time (around 10 to 15 minutes). After successfully boot into android L check for the storage space. If it says only 5 GB available instead of 12 GB (My nexus is 16GB) then Go to Settings > Backup & Reset and select Factory data reset.
I had experienced these issues when upgrading to Lollypop and solved them on my own.
Note: If you were not able to boot into stock recovery, try twrp recovery. you have to install it using fastboot
fastboot flash recovery <filename.img>
letsnexus said:
any suggetion or link which can help me to use fastboot use and install stock rom
thank alot for help
Click to expand...
Click to collapse
although the link is for kitkat but the same method applies to flashing lollipop
http://forum.xda-developers.com/nexus-4/general/how-to-how-to-flash-factory-image-t2010312
moorthidaniel said:
Go to stock recovery and do factory data reset and reboot phone. First time boot takes very long time (around 10 to 15 minutes). After successfully boot into android L check for the storage space. If it says only 5 GB available instead of 12 GB (My nexus is 16GB) then Go to Settings > Backup & Reset and select Factory data reset.
I had experienced these issues when upgrading to Lollypop and solved them on my own.
Note: If you were not able to boot into stock recovery, try twrp recovery. you have to install it using fastboot
fastboot flash recovery <filename.img>
Click to expand...
Click to collapse
OK, I was able to get into recovery with this method, and wipe but I get can't mount cache errors during the wipe , waiting for the phone to reboot now, hopefully it will and get out of the bootloop. stupid thing is I'm not a noob, but stumped by this. Good excuse to upgrade to the N5 I guess
---------- Post added at 03:14 PM ---------- Previous post was at 02:55 PM ----------
Wow, this method worked! Brilliant! Thanks, and dammit, it worked, 10 minutes after she agreed to me getting am upgrade !
For all of you whom are stuck in bootloop a fastboot oem lock comand when in fastboot will solve the problem.
So go into bootloader and run "fastboot oem lock" for some reason on some devices Android 5.0 won't boot with unlocked bootloader.
hazwheel said:
OK, I was able to get into recovery with this method, and wipe but I get can't mount cache errors during the wipe , waiting for the phone to reboot now, hopefully it will and get out of the bootloop. stupid thing is I'm not a noob, but stumped by this. Good excuse to upgrade to the N5 I guess
---------- Post added at 03:14 PM ---------- Previous post was at 02:55 PM ----------
Wow, this method worked! Brilliant! Thanks, and dammit, it worked, 10 minutes after she agreed to me getting am upgrade !
Click to expand...
Click to collapse
OK great. Cheers, I helped someone today in this forum.
bett3rthan said:
For all of you whom are stuck in bootloop a fastboot oem lock comand when in fastboot will solve the problem.
So go into bootloader and run "fastboot oem lock" for some reason on some devices Android 5.0 won't boot with unlocked bootloader.
Click to expand...
Click to collapse
That did NOT work for me, the getting into recovery and wiping the device DID work though.
---------- Post added at 04:05 PM ---------- Previous post was at 04:03 PM ----------
moorthidaniel said:
OK great. Cheers, I helped someone today in this forum.
Click to expand...
Click to collapse
Yes, Thanks, unfortunately, she has withdrawn the offer of an early upgrade :silly:
thax
Misledz said:
This is why you never use a Toolkit, it's always been mentioned around in XDA that this has always been a developer website of learning and knowledge. You must always know what goes on behind than just blindly flashing things. It's a rule of thumb that you're more likely to brick your phone with a Toolkit than by yourself. Easiest step as follow
Sent from my HTC One_M8 using Tapatalk
Click to expand...
Click to collapse
Thank you alot, you help in really good manner
and teached us not to use toolkit
will learn more abt rooting and flashing thank you once again
I am hitting this problem now, I got a OTA. After restarting its keep on looping waiting for more than 20mins still it's looping.
Tried going to boot-menu and did factory reset and it booted good after ~10 mins.
sububack said:
I am hitting this problem now, I got a OTA. After restarting its keep on looping waiting for more than 20mins still it's looping.
Click to expand...
Click to collapse
Power off, hold Vol Down + Power, when you get to the Android laying down, press volume up + pwr, then wipe the /cache from the menu (you do not need to do a full factory wipe, just wiping cache will do), and then reboot and wait. It will boot this time properly. @WugFresh is aware of the issue and said will put a fix in 1.9.9 for the N4
Thanks , I have tried clearing the cache and started waiting for an hour. Since it was still looping tried after factory reset/wiping user data. And then after 10min it came good.
I post this on Google Product Forum 2 days ago. Hope it helps
https://productforums.google.com/fo...ce=footer#!msg/nexus/Lv8fHtyJOPQ/wDzRUm4b2UsJ
(updated 29/11/2014)[not perfect but it is a SOLUTION]
The idea of this is to downgrade your nexus 4 without wiping your data, which means stuff you will need includes:
1. adb and fastboot on your computer (I am using mac but you can find it on windows as well. There are tones of website and forums telling you the latest method of getting it onto your computer)
2. factory image of nexus 4(I use 4.4.4, since that's what it was. I don't have the time and energy to try to do the same thing with lollipop. you can try can leave a comment).
update: do NOT try to flash 5.0 rom using this method. You will be stuck at boot loop again
3. usb cable
4. nexus 4 with unlocked bootloader(the process of unlocking bootloader will wipe your device)
5. computer
steps
1. unzip the factory image (something.tgz)
2. for me, after unzipping the .tgz, I still find another .zip inside. unzip that too.
3. hold vol+, vol-, and power button simultaneously to enter fastboot mode
4. open terminal(mac)(it would probably be cmd for windows)
5. connect your nexus 4(in fastboot)
6. to make sure it connect successfully, type "fastboot devices". if something like "005040c0d54bb291 fastboot" appears, you are good. Otherwise, try reconnect your device/boot to fastboot again/use another usb cable
7.now we need to tell the terminal to navigate to the location of the unzipped factory image. to do that, i suggest you put the unzipped folder to somewhere easy to find, like desktop. these are some commands to help you navigate:
"ls" allows you to look at whats inside the current directory of the terminal. For example, this is the output after typing "ls" for me:
some folder Photos
nexus4image.tgz how many folders do you have
5.zip occam-ktu84p
more folder occam-ktu84p.zip
after knowing where you are, use "cd" (below) to go to your folder
"cd" means change directory. For example. "cd Photos" will brings me to the "Photos" folder. And then if I type ls, I will see a whole bunch of photos in my photos. If you go to the wrong folder, type "cd ..", and it will bring you back to the previous folder.
8. flash bootloader.
enter the following command, BUT REMEMBER TO CHANGE THE NAME TO FIT YOURS(DIFFERENT VERSIONS HAVE SLIGHTLY DIFFERENT FILE NAME AT THE END(type ls first to help you type the correct name)
fastboot flash bootloader bootloader-mako-makoz30d.img
9. reboot bootloader. just copy and paste
fastboot reboot-bootloader
10. flash radio
enter the following command, BUT REMEMBER TO CHANGE THE NAME TO FIT YOURS(DIFFERENT VERSIONS HAVE SLIGHTLY DIFFERENT FILE NAME AT THE END(type ls first to help you type the correct name)
fastboot flash radio radio-mako-m9615a-cefwmazm-2.0.1701.03.img
11. reboot bootloader. just copy and paste
fastboot reboot-bootloader
12. flash system
system.img is located inside the zip, use ls to help you navigate. This steps takes the longest time, total time on this step is 87 seconds while the others are less then 1 second
fastboot flash system system.img
13. flash boot
boot.img is located inside the zip, use ls to help you navigate.
fastboot flash boot boot.img
14. flash recovery
fastboot.img is located inside the zip, use ls to help you navigate.
fastboot flash recovery recovery.img
15. format cache(not the memory, so everything should be fine)
fastboot format cache
16. reboot and wait
this will reboot your device. You probably have to wait for a while to initialise all the apps. after than you are good to go!
fastboot reboot
credit: my friend for giving me this idea + http://forum.xda-developers.com/nexus-4/general/how-to-how-to-flash-factory-image-t2010312 + HelpMyNexus

"No Command" when trying to enter lollipop recovery

Hello, I've just recently flashed lollipop to my nexus 7 2012 WiFi and every time I try to enter recovery I get a "No Command" on my screen. Have i messed up something whilst flashing? I've tried flashing lollipop twice with no luck for getting into recovery. Any help much appreciated.
Does your tablet boot into Android? I tried the OTA update on modified stock android, and it failed locking me out, it would boot loop 3 times, then go to the 'No command' - you need to hold all three buttons, power and both the volumes when it's turned off, then it should boot into fastboot with recovery options. If you are stuck on 'no command' - if you hold power and volume up you'll get some options including reboot.
So from fastboot, I didn't do anything here because recovery didn't work for me, but if you are in fastboot, I connected it to my PC and opened nexus toolkit - I had no ADB access but fastboot was available, so I had to flash individual images using that software. So I downloaded the IMG files for android 5 for the nexus 2012 manually, its a tgz archive, extracted it and there was another tgz archive inside which had the individual files I needed to flash. Boot.IMG and system.IMG are the main ones.
I assume you have the drivers set up anyway on your PC, in nexus toolkit I went to Advanced and in the first column near the top I clicked Fastboot, then in the next column at the top, I clicked the permanent option, and below that in the middle column it lists all the android flashable files, boot, recovery, system, user data. These will match your files in the archive that was inside of the IMG archive you downloaded from google, boot.IMG, recovery.IMG, system.IMG, user data.IMG. I only needed to do flsash boot and system, recovery didn't work as it said it needed ADB access, and I didn't do user data as I don't think it was important and it wasn't necessary.
I naturally flashed boot.IMG first, then I had to flash the system.IMG twice as it didn't seem to do anything the first time. The second time it took 2-3 minutes then rebooted, and started booting into Android 5, the first boot will take 10 minutes.
This is probably a lot more than what you wanted to hear as I'm unsure of your problem, but I had to figure this out myself through using knowledge on flashing my old Sony Ericsson which was harder back then. I've only used the nexus toolkit once so it was still new to me. Anyway if this doest help you, I'm sure now its here other people will find it who need it
Sent from my Nexus 7 using XDA Free mobile app
I'm having same problem. Have you had any success in repairing this issue? If so please let me know the fix. Thanks.
It's there you just have to hold power and up when you see no command.

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