[GUIDE] Nexus 7 - Factory Image Restore

[2defmouze]

Tutorial great thanks. All very clear and easy to follow. Unfortunately my issue must be a hardware failure. Originally stuck in a boot loop with the google logo. Did the usual soft/hard reset, deleted cache (Wasn't worried about losing data) but no joy. Followed the tutorial here to the letter with no un-expected faults. On final reboot still stuck with google logo. None the less, learnt a lot from here so thank you. Looks like a call to ASUS though :-(

After following the guide (which you did already according to your post).. Lock then unlock the bootloader again, in fastboot/bootloader mode using:
fastboot oem lock
Confirm it has locked
fastboot reboot-bootloader
Then
fastboot oem unlock
And confirm it on the device.. Then unplug it and let it reboot.... Might clear out whatever the last issue was

Sent from my Nexus 4 using Tapatalk 2

 

[Fred LaCroix]

Thank You very much! So much and many erroneous and seem to be intentionally misleading guides, how to's etc. I stumbled across this after being unhappy with my rom (remain unnamed) and could not find a guide that was worth a damn, but I read yours through one time and felt positive. It took me about less than 30 minutes to have my beloved tablet back. Thanks again and kudos to the other contributors

 

[suzimatola]

I use to reset my Nexus 7 back to factory too. What I found a lot easier is to get the free app CLEAN MASTER....I use it constantly. You'll be surprised how much crap stays in your files...lol

---

 

[Yutapong]

Thank you so much! I couldn't mount my usb otg with TWRP for some reason this really helped!

 

[ko971]

Hey man, smooth tutorial but i got a problem on step 7 :

Last login: Thu Jun 27 18:45:50 on ttys000
A627s-MacBook-Pro:~ A627$ cd downloads
A627s-MacBook-Pro:downloads A627$ fastboot devices
-bash: fastboot: command not found
A627s-MacBook-Pro:downloads A627$ ./fastboot-mac devices
ERROR: could not get pipe properties
015d483bd104160d fastboot
A627s-MacBook-Pro:downloads A627$ fastboot erase boot
-bash: fastboot: command not found
A627s-MacBook-Pro:downloads A627$ ./fastboot-mac erase boot
ERROR: could not get pipe properties
erasing 'boot'... OKAY
A627s-MacBook-Pro:downloads A627$ ./fastboot-mac erase cache
ERROR: could not get pipe properties
erasing 'cache'... OKAY
A627s-MacBook-Pro:downloads A627$ ./fastboot-mac erase recovery
ERROR: could not get pipe properties
erasing 'recovery'... OKAY
A627s-MacBook-Pro:downloads A627$ ./fastboot-mac erase system
ERROR: could not get pipe properties
erasing 'system'... OKAY
A627s-MacBook-Pro:downloads A627$ ./fastboot-mac erase userdata
ERROR: could not get pipe properties
erasing 'userdata'... OKAY
A627s-MacBook-Pro:downloads A627$ ./fastboot-mac flash bootloader bootloader-grouper-4.18.img
error: cannot load 'bootloader-grouper-4.18.img'

A627s-MacBook-Pro:downloads A627$ ./fastboot-mac flash bootloader bootloader-grouper-4.18.img
error: cannot load 'bootloader-grouper-4.18.img'

A627s-MacBook-Pro:downloads A627$ ./fastboot-mac flash bootloader bootloader-tilapia-4.18.img
ERROR: could not get pipe properties
sending 'bootloader' (2096 KB)... OKAY
writing 'bootloader'... OKAY
A627s-MacBook-Pro:downloads A627$ ./fastboot reboot-bootloader
-bash: ./fastboot: No such file or directory
A627s-MacBook-Pro:downloads A627$ fastboot reboot-nootloader
-bash: fastboot: command not found
A627s-MacBook-Pro:downloads A627$ ./fastboot reboot-bootloader
-bash: ./fastboot: No such file or directory
A627s-MacBook-Pro:downloads A627$ ./fastboot -w update image-nakasia-jdq39.zip
-bash: ./fastboot: No such file or directory
A627s-MacBook-Pro:downloads A627$ ./fastboot reboot-bootloader
-bash: ./fastboot: No such file or directory
A627s-MacBook-Pro:downloads A627$

these are the commands and as you see that is the message i got after ste7 didnt know what to do from there !?

 

[XenoBen]

When i do fastboot flash bootloader bootloader-grouper-4.18.img i get a out of memory error and my command prompt crashed, as a result of this i no longer have a boot partition on my nexus and i cannot do anything with it. Is there a way to fix this?

EDIT: I managed to fix it by completely removing everything to do with the nexus on the driver side of things, this seems to have fixed it.

 

[2defmouze]

Hey man, smooth tutorial but i got a problem on step 7 :
.......................
A627s-MacBook-Pro:downloads A627$ ./fastboot-mac flash bootloader bootloader-tilapia-4.18.img
ERROR: could not get pipe properties
sending 'bootloader' (2096 KB)... OKAY
writing 'bootloader'... OKAY
A627s-MacBook-Pro:downloads A627$ ./fastboot reboot-bootloader
-bash: ./fastboot: No such file or directory
A627s-MacBook-Pro:downloads A627$ fastboot reboot-nootloader
-bash: fastboot: command not found
A627s-MacBook-Pro:downloads A627$ ./fastboot reboot-bootloader
-bash: ./fastboot: No such file or directory
A627s-MacBook-Pro:downloads A627$ ./fastboot -w update image-nakasia-jdq39.zip
-bash: ./fastboot: No such file or directory
A627s-MacBook-Pro:downloads A627$ ./fastboot reboot-bootloader
-bash: ./fastboot: No such file or directory
A627s-MacBook-Pro:downloads A627$

these are the commands and as you see that is the message i got after ste7 didnt know what to do from there !?

Lol you are just forgetting to write "./fastboot-mac" as the command and instead writing just "./fastboot" ..... (see bolded)

The thing about the pipe properties doesn't appear to be affecting anything.. I did a bit of research and confirmed some mac users have seen that and it doesn't adversely affect it.

 

[2defmouze]

When i do fastboot flash bootloader bootloader-grouper-4.18.img i get a out of memory error and my command prompt crashed, as a result of this i no longer have a boot partition on my nexus and i cannot do anything with it. Is there a way to fix this?

EDIT: I managed to fix it by completely removing everything to do with the nexus on the driver side of things, this seems to have fixed it.

Thank you for the update to let us know you worked it out, and glad you were able to!

 

[ko971]

2defmouze

thank you buddy, I've realized that late, after I used one of the toolkits for Mac and I solved the problem, nexus IP and running , this post is saved and am sure it will come in handy at some point as am sure I'll use it sooner or later.

thank you for your work

 

[Bebop56210]

Hi, just bought a Nexus 7 with no power hoping it would be a simple fix since most of the time it's a battery issue, but the only thing I can get it to do is show up as "APX" or "nvidia usb boot recovery driver for mobile devices" after drivers are installed by windows. Is there any way to flash it from this or did I just waste my money? I mean, I can go into work monday and try to find out if there's a way to fix it since I work on Asus tablets, and there's a google line that only works on Nexus, so we'll see there too I guess...

 

[2defmouze]

Hi, just bought a Nexus 7 with no power hoping it would be a simple fix since most of the time it's a battery issue, but the only thing I can get it to do is show up as "APX" or "nvidia usb boot recovery driver for mobile devices" after drivers are installed by windows. Is there any way to flash it from this or did I just waste my money? I mean, I can go into work monday and try to find out if there's a way to fix it since I work on Asus tablets, and there's a google line that only works on Nexus, so we'll see there too I guess...

If there's a hardware issue there is nothing a factory image restore can fix...

 

[johnnyau2]

i am new to these kind of stuff...

One day some of the apps of my nexus7 were forced to close, so i try to restart the nexus7 .
however, it cannot boot pass the x logo from that time, even i force to restart it .

So i am just think should i follow your guide...
just one thing i am afraid of ...
would these kind of changes causing the loss of the warranty?
and if i fail in the part in the guide would it cause me cannot open the tablet again because of doing the following steps?
fastboot erase boot
fastboot erase cache
fastboot erase recovery
fastboot erase system
fastboot erase userdata

 

[2defmouze]

i am new to these kind of stuff...

One day some of the apps of my nexus7 were forced to close, so i try to restart the nexus7 .
however, it cannot boot pass the x logo from that time, even i force to restart it .

So i am just think should i follow your guide...
just one thing i am afraid of ...
would these kind of changes causing the loss of the warranty?
and if i fail in the part in the guide would it cause me cannot open the tablet again because of doing the following steps?
fastboot erase boot
fastboot erase cache
fastboot erase recovery
fastboot erase system
fastboot erase userdata

Only follow the procedures in this guide if you are having a software issue caused by rooting/hacking/flashing something. This is not for any other issues.

Sent from my Nexus 4 using Tapatalk 2

 

[johnnyau2]

omg...
i just done
fastboot erase boot
fastboot erase cache
fastboot erase recovery
fastboot erase system
fastboot erase userdata
but and then the system need me to unlock the bootloader to proceed the process...
but not if i dun unlock it... is there a way the get back those recovery and boot system....?

and if i unlock the bootloader... if it possible to lock back the bootloader to keep the warranty?

really appreciate your help .. i drive crazy now

 

[NoOneSpecific]

Things were going ok until step 8 when I get this:


C:\Users\***\Desktop\New folder>fastboot reboot-bootloader
rebooting into bootloader...
OKAY [ 0.020s]
finished. total time: 0.021s

C:\Users\***\Desktop\New folder>fastboot flash bootloader bootloader-t
ilapia-4.18.img
sending 'bootloader' (2096 KB)...
OKAY [ 0.272s]
writing 'bootloader'...
OKAY [ 1.188s]
finished. total time: 1.462s

C:\Users\***\Desktop\New folder>fastboot reboot-bootloader
rebooting into bootloader...
OKAY [ 0.020s]
finished. total time: 0.021s

C:\Users\***\Desktop\New folder>fastboot -w update image-nakasig-jdq39
.zip
archive does not contain 'boot.sig'
archive does not contain 'recovery.sig'
archive does not contain 'system.sig'
--------------------------------------------
Bootloader Version...: 4.18
Baseband Version.....: 1231_0.10.0_1021
Serial Number........: deleted
--------------------------------------------
checking product...
OKAY [ 0.040s]
checking version-bootloader...
OKAY [ 0.023s]
checking version-baseband...
FAILED

Device version-baseband is '1231_0.10.0_1021'.
Update requires '1231_0.17.0_1205'.

finished. total time: 0.236s


Any assistance is greatly welcomed!

 

[NoOneSpecific]

SOLUTION!

Seems that there is a step missing for HSPA+ Nexus7 Owners. Try doing this at Step 8:



C:\Users\***\Desktop\New folder>fastboot flash bootloader bootloader-t
ilapia-4.18.img
sending 'bootloader' (2096 KB)...
OKAY [ 0.284s]
writing 'bootloader'...
OKAY [ 1.183s]
finished. total time: 1.470s

C:\Users\***\Desktop\New folder>fastboot reboot-bootloader
rebooting into bootloader...
OKAY [ 0.020s]
finished. total time: 0.022s

C:\Users\***\Desktop\New folder>fastboot flash radio radio-tilapia-123
1_0.17.0_1205.img
sending 'radio' (16384 KB)...
OKAY [ 2.094s]
writing 'radio'...
OKAY [ 0.654s]
finished. total time: 2.750s

C:\Users\***\Desktop\New folder>fastboot reboot-bootloader
rebooting into bootloader...
OKAY [ 0.020s]
finished. total time: 0.020s

C:\Users\***\Desktop\New folder>fastboot -w update image-nakasig-jdq39
.zip
archive does not contain 'boot.sig'
archive does not contain 'recovery.sig'
archive does not contain 'system.sig'
--------------------------------------------
Bootloader Version...: 4.18
Baseband Version.....: 1231_0.17.0_1205
Serial Number........: deleted
--------------------------------------------
checking product...
OKAY [ 0.040s]
checking version-bootloader...
OKAY [ 0.022s]
checking version-baseband...
OKAY [ 0.030s]
sending 'boot' (4944 KB)...
OKAY [ 0.642s]
writing 'boot'...
OKAY [ 0.202s]
sending 'recovery' (5446 KB)...
OKAY [ 0.700s]
writing 'recovery'...
OKAY [ 0.220s]
erasing 'system'...
OKAY [ 0.109s]
sending 'system' (471972 KB)...
OKAY [ 59.580s]
writing 'system'...
OKAY [ 26.085s]
erasing 'userdata'...
OKAY [ 4.948s]
formatting 'userdata' partition...
Creating filesystem with parameters:
Size: 30063722496
Block size: 4096
Blocks per group: 32768
Inodes per group: 8192
Inode size: 256
Journal blocks: 32768
Label:
Blocks: 7339776
Block groups: 224
Reserved block group size: 1024
Created filesystem with 11/1835008 inodes and 159204/7339776 blocks
sending 'userdata' (139157 KB)...
writing 'userdata'...
OKAY [ 30.763s]
erasing 'cache'...
OKAY [ 0.072s]
formatting 'cache' partition...
Creating filesystem with parameters:
Size: 464519168
Block size: 4096
Blocks per group: 32768
Inodes per group: 7088
Inode size: 256
Journal blocks: 1772
Label:
Blocks: 113408
Block groups: 4
Reserved block group size: 31
Created filesystem with 11/28352 inodes and 3654/113408 blocks
sending 'cache' (9052 KB)...
writing 'cache'...
OKAY [ 1.828s]
rebooting...

finished. total time: 125.412s

And all is good and perfect in the World, again.

 

[2defmouze]

@NoOneSpecific thanks for posting the solution you found for that issue.. Makes sense to have that command in to flash the radio for the 3g enabled version. I'll update the OP when I get a chance.. Wouldn't have noticed myself as I have the wifi only grouper.


Sent from my Nexus 4 using Tapatalk 2

 

[2defmouze]

Guide updated with links to the new 4.3 factory images and instructions should be updated accordingly. Also threw in some edits to try and make it clearer the extra step/changes that one should follow if using a 3G/HSPA+ Nexus 7 versus a wifi only model.

 

[acstewart82]

So I followed the directions to the letter, but apon attempting fastboot -w update image-nakasi-jdq39.zip it seems to stick on sending system. I don't get any error it just sits there for hours on end and does nothing. Any help would be greatly appreciated.

 

[2defmouze]

So I followed the directions to the letter, but apon attempting fastboot -w update image-nakasi-jdq39.zip it seems to stick on sending system. I don't get any error it just sits there for hours on end and does nothing. Any help would be greatly appreciated.

Try just sending the system, after unzipping it and erasing the part that failed to send:
fastboot erase system
Then
fastboot flash system system.img

Sent from my Nexus 4 using Tapatalk 2