Develop Bugs

[Q] Cannot access recovery

Guys,
I am lost. I thought I am not stupied, but it seems I am.
Here's the problem:
After flashing a couple of different ROMs somehow I wasn't able to access recovery any more - I always used a batch to load the recovery, I never flashed in permanently. Now I only see the white HTC screen.
So I unrevoked, a new RUU plus rerevoked but both scenarios give the same result: unrevoked it stopping when it should boot in recovery.
Also I used some batch scripts flying around. and the problem should be that it is not possible to write the recovery.
my phone:
BRAVO DVT1 SHIP S-OFF
HBOOT-0.75.0000
MICORP-031d
TOUCH PANEL SYNT0101
Radio 0-4.05.00.11
Any clue how I can restore recovery???
Thanks in advance.
M

Can you get into fastboot? If you can, go to shipped-roms.com and find your original stock RUU. Connect your phone and place it in Fastboot mode (select Fastboot and wait until it says FASTBOOT USB and run the RUU your phone came with originally). You may need to insert a Gold Card into your phone if you are running a generic one).
I;m just thinking... it could also be a USB brick, see this guide here for a possible fix:
http://forum.xda-developers.com/showthread.php?t=691187
If i were you, i would steer away from manually accessing recovery using batch scripts/pushfiles, especially when connected via USB, as this can always potentially brick your phone. As you were saying, use unrEVOked with a permanent custom recovery like Amon-Ra, or use ClockworkMod. This will make it virtually impossible to brick your phone.
Hope you get it fixed soon.

You could also try running unroked from a linux live cd. People have less problem running it true linux.

Thank you guys for trying to help.
I installed the RUU from fastboot and still... no recovery in sight. I looked into USB brick as well, but all solutions require a recovery mode - which I don't have. Also I don't this it is a bricked misch partition. But hell, what I know. I just bricked this *****.
After RUU I ran unrevoked again. all fine until booting the recovery: White screen and HTC logo. But at least I have root ;-)
Is it possible that there is something wrong with the rights? I tried:
r5-desire-root/fastboot-mac boot recovery-clockwork-2.5.0.7-bravo.img
downloading 'boot.img'... OKAY
booting... FAILED (remote: not allowed)
Any clue?
Cheers
M

tameike said:
Thank you guys for trying to help.
I installed the RUU from fastboot and still... no recovery in sight. I looked into USB brick as well, but all solutions require a recovery mode - which I don't have. Also I don't this it is a bricked misch partition. But hell, what I know. I just bricked this *****.
After RUU I ran unrevoked again. all fine until booting the recovery: White screen and HTC logo. But at least I have root ;-)
Is it possible that there is something wrong with the rights? I tried:
r5-desire-root/fastboot-mac boot recovery-clockwork-2.5.0.7-bravo.img
downloading 'boot.img'... OKAY
booting... FAILED (remote: not allowed)
Any clue?
Cheers
M
Click to expand...
Click to collapse
Try placing the 'recovery-clockwork-2.5.0.7-bravo.img' in the tools folder of the android sdk folder, and then drag the tools folder into terminal and type:
./fastboot-mac boot recovery recovery-clockwork-2.5.0.7-bravo.img (to boot the clockwork recovery through fastboot)
or this:
./fastboot-mac flash recovery recovery-clockwork-2.5.0.7-bravo.img (to flash the clockwork recovery through fastboot)
Hope this helps some.

Tried this just now:
./fastboot-mac flash recovery ../recovery-clockwork-2.5.0.7-bravo.img
sending 'recovery' (4216 KB)... OKAY
writing 'recovery'... FAILED (remote: not allowed)
./fastboot-mac boot recovery ../recovery-clockwork-2.5.0.7-bravo.img
cannot load 'recovery'
Does this mean anything to anyone?
Thanks guys...

You are S-on, maybe running alpharev so that you are S-off can help you. But I have no experience with that. If you are S-Off you can use the fastboot commands to push the recovery.

It's possible that the stock RUU you ran earlier may have had an HBOOT update in it forcing s-off to change to s-on, causing the HBOOT to be overwritten.
I s-off'ed not too long ago (i know... i know... it does sound dirty ) and it is a risky procedure as it could end up bricking your phonr entirely if not done correctly. I'm am not certain on what exact procedure to follow on Mac, running Windows 7 here...
If you want to give it a try yourself, you can follow what is suggested in the following guide:
http://forum.xda-developers.com/showthread.php?t=805811
This is what i did to security unlock my phone:
I ensured USB Debugging was enabled.
Downloaded this AlphaRev 1.5 HBOOT reflash utility (.iso file)
Important: Before starting this procedure, it is very important that you do not have your phone sync'd to your PC, as you should only connect the phone to the computer when prompted after the .iso is booted.
I burned the .iso to a bootable CD (you can also boot from a DVD disc or USB key).
Note: You may need to change the boot order in your computer BIOS to either boot from a CD/DVD or external device, like a USB key.
I rebooted my computer and booted from the CD I created, and pressed enter at the flashing cursor - you will know that you have successfully booted the .iso as the screen will display some Tiny Core Linux logos. While I waited, I powered on your phone but I made sure that I had not connected it to my PC via USB. After the initial loading, the screen will prompt you to press any key to continue. After this, I was prompted to connect the phone via USB.
Make sure you wait and only connect your phone via USB when prompted on your Mac. When you are ready, connect the phone via USB (while you are doing this, check the status of your phone as you may be prompted to allow super user permissions to continue). During this process, do not interact with your phone and just let it run it's course. Your phone will automatically reboot a few times during the 3 stages, so do not stop the procedure at any cost.
When it is done, go back into the Bootlader and at the top of the screen, it should show the AlphaRev text and s-off.
Next, you will need to flash the custom clockwork recovery here - http://koush.tandtgaming.com/recoveries/recovery-clockwork-2.5.0.7-bravo.img
Then, simply follow and enter the command I posted above (make sure you place the recovery image in the tools folder of the android sdk folder, and execute the fastboot command via the Terminal) to flash the custom clockwork recovery from fastboot, and it should then hopefully get you back on track.
Let us know how you get on with this. I will keep my fingers crossed for you
Regards,
Mas.

Another case of someone with a factory unlocked bootloader...where are they coming from or have HTC just sent them all out like it!?!?!

EddyOS said:
Another case of someone with a factory unlocked bootloader...where are they coming from or have HTC just sent them all out like it!?!?!
Click to expand...
Click to collapse
I think these s-off supplied devices are supplied specifically for developers as developer phones... i think

[Guide] Re-lock and Un-root **3G & 4G** Xoom

##PLEASE NOTE##
These files are from Motorola's Development site and I take no liability with anything that happens with your device if something goes wrong.
DO NOT ATTEMPT TO FLASH THIS FILE ON ANYTHING BUT THE VERIZON WIRELESS MOTOROLA XOOM Z600 (3G MODEL) OR YOU WILL HAVE A SHINEY PAPER WEIGHT!!!!
Click to expand...
Click to collapse
You're going to need to have the Android SDK installed. You can download it here:
ANDROID SDK - DOWNLOAD
XOOM Firmware Downloads:
[3G|MZ600-HRI66]
[4G|MZ602-HLK75D]
Unzip the files in MZ600_HRI66.zip and move or copy them to the /platform-tools folder in your SDK folder.
Connect your Xoom to your computer. Type:
Code:
adb reboot bootloader
Wait for it to reboot into the bootloader.
Type the following commands, waiting for each to finish before continuing:
Code:
fastboot flash boot boot.img
fastboot flash system system.img
fastboot flash recovery recovery.img
fastboot flash userdata userdata.img
fastboot erase cache
You've now successfully flashed your Xoom back to stock. Now it's time to relock the device. Type
Code:
fastboot oem lock
wait for the menu
then press the volume-down button.
Then press the volume up button.
It'll take a minute or so, then reboot. You're now completely back to stock and ready for the update.

So if you are on Three . One you can use this to revert back to out of the box freshness?

Brenardo said:
So if you are on Three . One you can use this to revert back to out of the box freshness?
Click to expand...
Click to collapse
Yes. That is correct. This will return your XOOM to 100% stock.

word!
I have already been thru the LNX 0x0004 debacle and it was absolutely no fun whatsoever.

well I got a stuck at moto logo for 10 minutes
I am going to try to fastboot oem unlock, reflash images again and fastboot lock to see if I get out of moto logo

second install fix it

jlouang said:
second install fix it
Click to expand...
Click to collapse
So that means that you got it working, correct?
>.>

So the HRI66 is the latest version on the Motorola site? I really need to get a grasp of their version numbers.
EDIT:
Never mind looks like HRI66 is the latest version Thanks anyway.

i was thinking that with the change to the bootloader in the 3.1 update we couldn't use previous versions img's. But I am glad we can return to stock and get this 4G update!

I'm following all those steps directly. Once I type in adb reboot bootloader, it says starting Fastboot protocol support. Once I try to type any other command it says not recognized in adb. Any ideas?

Dead link...

dchurch85 said:
I'm following all those steps directly. Once I type in adb reboot bootloader, it says starting Fastboot protocol support. Once I try to type any other command it says not recognized in adb. Any ideas?
Click to expand...
Click to collapse
Did you extract all of the files in the ZIP into the 'tools' folder? The same one that adb is in.

Could someone help me,
After the rebooting device I got this massage :
Failed to boot LNX 0x0004
Starting RSD mode 2
Then stuck on Motorola logo. I can't enter the recovery mode.
What should I do ?
My Xoom is H.6.1-38-9 International version

CakraMas said:
Could someone help me,
After the rebooting device I got this massage :
Failed to boot LNX 0x0004
Starting RSD mode 2
Then stuck on Motorola logo. I can't enter the recovery mode.
What should I do ?
My Xoom is H.6.1-38-9 International version
Click to expand...
Click to collapse
This is what I was afraid of..... try searching the error you are getting. Not many options on how to fix.

i am curious about the LNX 0x0004 error. I know it comes from trying to relock with non-factory img's but what exactly does that mean? I am curious what actually causes the device to soft brick.

Finally I made it, .
I can enter to bootloader by fastboot method, flash the stock image, then relock my device.

Kinda having the same issue as dchurch... "adb reboot bootloader" reboots Xoom to the "M" logo with "Starting Fastboot protocol support," but I can't continue with nay further commands. My computer no longer recognizes the presence of my Xoom and my Xoom doesn't progress past this screen. I can boot it normally with no problem. I've extracted all of the necessary files into my platform tools folder with adb.. any input?

gatorhater73 said:
Kinda having the same issue as dchurch... "adb reboot bootloader" reboots Xoom to the "M" logo with "Starting Fastboot protocol support," but I can't continue with nay further commands. My computer no longer recognizes the presence of my Xoom and my Xoom doesn't progress past this screen. I can boot it normally with no problem. I've extracted all of the necessary files into my platform tools folder with adb.. any input?
Click to expand...
Click to collapse
You can try manually going into fastboot as well... there are two ways to do this:
No matter what, power off the Xoom. Then, 1) Power on the Xoom and as soon as you see it turn on (within a second or two of the power on), press the Volume Down button, which kicks it into Fastboot. 2) If you miss the 1st couple of seconds and press Volume Down after 3-5 seconds, it will say "Android Recovery." You can then press Volume Down until you get to Fastboot, then press Volume Up.
My guess is that you have a different issue, something to do with your Fastboot image. Not sure if booting the Xoom into the OS and connecting with USB Debugging on will work or not to flash the files, perhaps maybe just the boot.img?

I also believe that when the Xoom says "Starting Fastboot protocol support", it is in fastboot mode and you can send the fastboot commands to the Xoom. If your PC does not show the Xoom as a device in your PC's Device manager, then you will probably need to load new/correct drivers onto your PC.

Did you make sure that adb recognized your device? Adb devices in the camaned prompt
Sent from my Xoom using Tapatalk

[Q] Unrevoked3 on Puppy Linux: "waiting for device"

Hi all,
I'm not one to usually post simple questions but I'm a little stuck and I've tried searching both this forum and on Google for days but cannot seem to get an answer.
After the whole Desire GB fiasco, I've decided to take the plunge and root my Desire. I'm running unrevoked3 on Puppy Linux, I am able to run the reflash file, turn on USB Debugging, Charge only and Unknown sources but nothing runs. The program just sits there informing me that it is "waiting for device".
I'm guessing it's a driver issue in Puppy but can anyone shed any light in getting the OS to recognise the phone? (I've also tried searching on the Puppy Linux forums to no avail).
Many thanks for your help and keep up the good work devs.

Unrevoked needs drivers in windows but shouldnt in Linux. So you're on Froyo?
Sent from my HTC Desire using XDA App

That's what I thought re: drivers and yes I'm running stock 2.2 Froyo. I'm sure it'll be a straightforward fix for someone in the know.

If you mount as disk drive, you can see the drive? What if you re run unrevoked then?

Puppy Linux is your problem, they must have done something to USB when they were trimming things down because I've never been able to get adb working on it...believe me, I tried.
Try with another live-cd.
Sent from my HTC Desire using XDA App

Thanks mercianary, that's the definitive answer i was looking for.

if you're going to flash a custom ROM anyway, I'd just S-OFF and flash recovery.
Once you've S-OFF'd follow:
bortak said:
[2] Repairing recovery, booting phone:
#METHOD 1#
Method One uses Android Flasher to flash the recovery image.
[STEP1]- Battery pull. Hold the BACK button and the POWER button to boot into FASTBOOT mode.
[STEP2]- Download Android Flasher
[STEP3]- Download the recovery image. Put it in a place you can remember.
[STEP4]- Run android flasher, tick "Recovery", and press "Begin"
[STEP5]- Browse to where you downloaded the recovery image, select it, and press "open"
[STEP6]- repeat [1] from [STEP4] onwards
#METHOD 2#
Method two uses cmd and requires Android SDK to be set up.
[STEP1]- Battery pull. Hold the BACK button and the POWER button to boot into FASTBOOT mode.
[STEP2]- Download the recovery image. Rename it to "recovery.img" for simplicity, and place it in the following directory:
Code:
C:\
[STEP3]- then in cmd type the following commands
Code:
cd c:\android-sdk\tools
fastboot flash recovery c:\recovery.img
fastboot oem gencheckpt [COLOR="Silver"](this command boots you into recovery, ignore the feedback from cmd)[/COLOR]
Click to expand...
Click to collapse
This will allow you to flash any ROM you want.

[Q] NOOB bricked acer a100 help!

I tried using the simple root and clockwork mod method and now my a100 keeps cycling thru bootloaderversion 0.03.06-ics-ics (unlock mode) with green acer logo. If I reboot holding power+down sd update command recovery
update_package=sd card update.zip
booting recovery kernal image
then it starts cycling again.
Please can someone help!

same
Same thing here (or at least very similar). Hoping there's a simple solution like the "Odin back to stock" I can do on my SGS phone.

are you sure that the bootloader say "unlock mode"?
If so, then try this.
try this
Install the USB drivers on your PC if you haven't done it already. ( http://global-download.acer.com/GDF...A TAB&Step3=A100&OS=a08&LC=en&BC=Acer&SC=PA_6 )
install android SDK. ( http://developer.android.com/sdk/index.html )
copy the update.zip file to your SD card root.
download TWRP recovery ( http://forum.xda-developers.com/showthread.php?t=1608152 ) and place it in the platform-tools dir where the SDK was installed ( ex. C:\Program Files\Android\android-sdk\platform-tools )
Once all that is done follow these steps
1) boot the tablet to fastboot mode
2) run command prompt on PC (cmd.exe)
3) cd to the platorm-tools dir
4) type the following lines one at a time.
adb.exe
fastboot erase recovery
fastboot flash recovery NAMEOFRECOVERY.img (ex. recovery-A100ICS-TWRP.img)
5) hold the vol down button on the tablet
6) type fastboot reboot.
The tablet should now reboot to the recovery program. Goto settings and mount the external SD card, then flash the update.zip by going to install.
Hope this helps

[email protected] said:
I tried using the simple root and clockwork mod method and now my a100 keeps cycling thru bootloaderversion 0.03.06-ics-ics (unlock mode) with green acer logo. If I reboot holding power+down sd update command recovery
update_package=sd card update.zip
booting recovery kernal image
then it starts cycling again.
Please can someone help!
Click to expand...
Click to collapse
Did you rename/delete /etc/install-recovery.sh ?
I think you're not. Try to make hard reset, then boot normaly rename/delete this file and after that flash recovery again, it should work.
All it's explained here.

Thank you
TheBlackshinobi said:
are you sure that the bootloader say "unlock mode"?
If so, then try this.
try this
Install the USB drivers on your PC if you haven't done it already. ( http://global-download.acer.com/GDF...A TAB&Step3=A100&OS=a08&LC=en&BC=Acer&SC=PA_6 )
install android SDK. ( http://developer.android.com/sdk/index.html )
copy the update.zip file to your SD card root.
download TWRP recovery ( http://forum.xda-developers.com/showthread.php?t=1608152 ) and place it in the platform-tools dir where the SDK was installed ( ex. C:\Program Files\Android\android-sdk\platform-tools )
Once all that is done follow these steps
1) boot the tablet to fastboot mode
2) run command prompt on PC (cmd.exe)
3) cd to the platorm-tools dir
4) type the following lines one at a time.
adb.exe
fastboot erase recovery
fastboot flash recovery NAMEOFRECOVERY.img (ex. recovery-A100ICS-TWRP.img)
5) hold the vol down button on the tablet
6) type fastboot reboot.
The tablet should now reboot to the recovery program. Goto settings and mount the external SD card, then flash the update.zip by going to install.
Hope this helps
Click to expand...
Click to collapse
I'm going to try this, one question though. My computer does not read the tablet anymore even though I have the drivers installed will it still work? Yes I'm a serious noob, but I'm trying...and thank you for your help it is much appreciated.

cpu doesnt read tablet anymore
[email protected] said:
I'm going to try this, one question though. My computer does not read the tablet anymore even though I have the drivers installed will it still work? Yes I'm a serious noob, but I'm trying...and thank you for your help it is much appreciated.
Click to expand...
Click to collapse
Okay, I downloaded everything but my computer doesnt recognize my a100 anymore, only if I put the tablet into fastboot then it see's it. My tablet just keeps on rebooting itself repeatedly unless I go into fastboot. Please tell me I dont have a paperweight.

were getting close
Blackshinobi or anyone that can help,
I'm getting close. I make it to: "fast boot flash recovey" cmd prompt
I get two different errors depending hoew I type the cmd prompt:
1. "fastboot flash recovery recovery-A100ICS-TWRP.img"
error (can not load recovery-A100ICS-TWRP.img)
2. "fastboot flash recovery-A100ICS-TWRP.img"
error ( cannort determine image file name for 'recovery-A100ICS-TWRP.img)
I was a little confuse on proper cmd line prompt, but I'm thinking #2 is the correct way.
Thanks so much for your help!

pfisher101 said:
Blackshinobi or anyone that can help,
I'm getting close. I make it to: "fast boot flash recovey" cmd prompt
I get two different errors depending hoew I type the cmd prompt:
1. "fastboot flash recovery recovery-A100ICS-TWRP.img"
error (can not load recovery-A100ICS-TWRP.img)
2. "fastboot flash recovery-A100ICS-TWRP.img"
error ( cannort determine image file name for 'recovery-A100ICS-TWRP.img)
I was a little confuse on proper cmd line prompt, but I'm thinking #2 is the correct way.
Thanks so much for your help!
Click to expand...
Click to collapse
That's awesome news!!!
Number 1 is the correct command.
Just making sure you are actually in fastboot (bootloader) mode. On the command-promt type "fastboot devices", if you see the result below, then you're good
? fastboot (yes that's a question mark)
Now be sure you are in the directory with the recovery image and issue number 1 command (fastboot flash recovery whatever-recovery.img). If you get some errors, be sure to check the MD5 hash of the recovery image cuz it could be a corrupted download.
Of course, you can't flash the custom recovery if you still have a locked bootloader.

you guys rock..even closer
Thank-you everyone ..I am soooo close. I did get the recovery image to load (I accidently had it in android-sdk and not platform-tools...oooops my bad). Now I can reboot to recovery and install the update.zip off my external sd card. However after I install the update.zip and reboot, I still get stuck on the acer screen (bootloader version 0.03.06-ICS (Unlock Mode) at top with acer logo in green at bottom.
Which update.zip am I suppose to be using? Currently I am trying to install one of the stock ROMS from the developer section of this forum. Am I suppose to be using a specific one?
Thanks again, I know I'm close. My tablet has been brick'd for weeks and I'm dedicated to getting it back now that I have time.

pfisher101 said:
Thank-you everyone ..I am soooo close. I did get the recovery image to load (I accidently had it in android-sdk and not platform-tools...oooops my bad). Now I can reboot to recovery and install the update.zip off my external sd card. However after I install the update.zip and reboot, I still get stuck on the acer screen (bootloader version 0.03.06-ICS (Unlock Mode) at top with acer logo in green at bottom.
Which update.zip am I suppose to be using? Currently I am trying to install one of the stock ROMS from the developer section of this forum. Am I suppose to be using a specific one?
Thanks again, I know I'm close. My tablet has been brick'd for weeks and I'm dedicated to getting it back now that I have time.
Click to expand...
Click to collapse
Congrats resurrecting your tab! Gotta be a great relief!
How about Flexreaper ROM? It will require full wipe before flashing: in recovery wipe/factory reset, wipe system, wipe cache, wipe dalvik cache, flash Flexreaper ROM zip file. This is basic guide, follow detailed instructions on this ROM thread (link is in my sig).
Sent from my A100 using xda premium

not quite recovered yet. I still get the hang on Acer screen. anyone know why? I will try flexreaper

I'm BACK
Thanks to all. I'm back up. flexreaper did work.. I hope the guy who actually started this thread is as lucky.

Not so lucky
I'm still stuck my pc doesnt read my acer a100 still....any helps out there?

[email protected] said:
I'm still stuck my pc doesnt read my acer a100 still....any helps out there?
Click to expand...
Click to collapse
Power down the unit. Set screen lock in the up position. Hold volume down and power. When powered on keep holding the vol down button. Then toggle the screen lock to down.
That should do a factory reset.
Then put a stock rom in the root of SD Card. Volume up then power until let the tablet recover.
This worked for me.

did u install the drivers from an earlier post? Also when you power up you your tablet you need to boot into fastboot mode? You're certain you have done both of these things?

I am unable to connect to, my pc doesnt recognize my acer anymore...unless by sd card you mean external card? Thank you for trying to help. I'm a serious noob but trying hard.

i'm in a similar situation. i accidentally deleted the build.prop file and rebooted. now it only displays a black screen after the acer logo drops out. my boot loader is locked but i cant install the mtp usb drivers to fix anything. think i have a paperweight now.

mechpilot_z said:
i'm in a similar situation. i accidentally deleted the build.prop file and rebooted. now it only displays a black screen after the acer logo drops out. my boot loader is locked but i cant install the mtp usb drivers to fix anything. think i have a paperweight now.
Click to expand...
Click to collapse
that's easily fixed, install this through stock recovery, http://forum.xda-developers.com/showthread.php?t=1611696

eww245 said:
that's easily fixed, install this through stock recovery, http://forum.xda-developers.com/showthread.php?t=1611696
Click to expand...
Click to collapse
tried. i had no alternative recovery on it. i could not get the sd card mounted to push the zip to it. both adb and fast boot wont see my tablet. every attempt at unlocking fast boot wouldn't work. I tried to check in device manager to see if it was connected, the driver was working but it had an error message "Device can not start (Code 10)"

My pc only sees my tablet when I boot it into fastboot mode and sees it as an adb interface...Is there anything I can do from there?

[GUIDE] Root and unbrick steps for ASUS ZenPad C 7.0 (P10Z - Z170C)

Hi all! It took me a lot of time to finally being able to root this tablet. It's old, slow and practically unusable, but with some tricks it can be made much, much better. I'm going to explain what you need to do to root this tablet, and in case of brick (which happened to me many, many times) how to unbrick it. I even got to a point where I could not even boot into recovery mode, and only fastboot was working, that was scary, but I managed to get out. Every single file I will use will be bundled in a ZIP you can download, and I'll try to make sure this link stays up, because there's nothing more frustrating than wanting to make these things in the future only to find out the link is dead, along with all your hopes. Before we begin, a little disclaimer:
Code:
#You, and only you are responsible for everything that you do or happens to your tablet.
#If you screw up, I have a number of backups to help you recover, but if that's not enough don't point a finger at me.
#I will not be babysitting anybody to help restore their tablet or recover lost data.
#This process WILL wipe all of your data, do a backup before beggining.
#YOU HAVE BEEN WARNED!
1. ENABLING USB DEBUGGING
This is a very basic step, but it's needed if you want to even begin to do this. You'll need to go to "Settings -> About Phone". There, look for a line that says "Compilation Number" (or something like that) and tap it multiple times. You will see a message pop up saying "You are now a developer" (I wish it was that easy). Go back to the settings screen, you will see a new option appeared called "USB Debugging". Enable it, and make sure "Developer Options" are enabled too at the very top of the screen. Now, connect the tablet to your computer. You will see a message pop up asking for permission, tap "Always allow from this computer" and press "Allow".
That's it for this step.
2. SETTING UP ADB TOOLS AND MAKING SURE THEY WORK
Now that we have USB debugging enabled, and we have allowed our PC to access the tablet, we can begin setting up ADB. The required files are attached in the zip.
Extract the "platform-tools" folder and move it somewhere nice. Then open it, hold shift and right click in a white space and select the option "Open command window here". CMD will pop up, now type:
Code:
adb devices
It will probably say something about a server followed by a list of attached devices. If you see a serial number there, then great! ADB is working as it should. If not, make sure the tablet is connected, that USB Debugging is on, and if all else fails, try with another cable.
Now for the juicy part.
3. UNLOCKING THE BOOTLOADER
We will have to unlock the bootloader if we want to do anything here. Here's what to do. Type:
Code:
adb reboot fastboot
Wait until the tablet reboots into fastboot. Once there type:
Code:
fastboot oem unlock
fastboot oem unlock confirm
This should unlock the bootloader.
NOTE: This method of unlocking is reported to not work anymore, but I listed it anyway just in case, as it doesn't hurt to try. If this is not working for you, don't panic, it's normal, use the following code instead:
Code:
fastboot oem asus-go
fastboot oem asus-go confirm
This should work, and the bootloader should be unlocked now.
4. INSTALLING THE REQUIRED FIRMWARE
Now, your tablet may or may not have the required firmware for the procedure, but just in case we will flash one that's sure to work. If you followed along, you should be in fastboot mode right now. Type:
Code:
fastboot reboot
Your tablet should boot as normal, without any changes (unless the first bootloader unlock method worked for you, in which case it probably wiped all of your data). Now we can access ADB once again, so type:
Code:
adb reboot recovery
The tablet will reboot into recovery mode and you should see an image of wasted android with an open belly (if you don't see this it doesn't matter). You should see a list of options with blue text, you must use the volume keys to navigate this menu. If you don't see any options, press any volume key and they should appear. If instead of getting into recovery mode, the tablet just turned off, then go to the "Fixing recovery" section.
In this menu, you must select "Wipe data/factory reset". This will, obviously, wipe all of your data. Once that finishes, select the "Install update through ADB" option. Once that's done, make sure the "updated_firmware.zip" file is in the same directory as the "adb.exe" file, then type:
Code:
adb sideload updated_firmware.zip
This will install the firmware, it will take about 20 mins. Once finished, reboot the device. You may think it got bricked at this point, fear not, the first boot really takes this long (about 10 mins).
Once everything is done, the device should boot up and everything should be exactly as it was when you took it out of the box, meaning, it doesn't even remember your wifi password. Do a quick (but proper) set up and enable USB Debugging again, make sure to allow the PC again (and check the "always allow" box). Also, scroll down a bit more in the developer options section and look for one that says "Verify apps installed through USB" or something of that kind. Make sure it's unchecked. Now, we gotta install root.
5. ROOTING
The all holy root, finally here. Type this into the terminal:
Code:
adb reboot fastboot
You should be familiar with this process by now. Once in fastboot mode, type:
Code:
fastboot boot root.img
Once finished, reboot. You should boot up as a rooted user, hooray! Only one final step, we gotta give ourselves some means to control this new power, that's where the SuperSU app comes into play.
6. INSTALLING SUPERSU
Apparently, not every single SuperSU apk file works... but lucky for you, I managed to scout and bundle one that does, so use that one. Make sure the apk file is in the same folder as "adb.exe" (as with all of the previous files) and type:
Code:
adb install supersu-2-82.apk
Leave it a few mins, and you should see a "success!" message when it's finished. Open the SuperSU app and it will tell you that you need to update the binaries. Say yes to that, and when asked wether to do a "Normal" update or "TWRP" update, select normal. It should be successful and prompt you to reboot, do so.
That's about it, you now have root access in the ASUS ZenPad C 7.0.
NOTE: Every single attempt I made to make the SuperSU app a system app resulted in the app crashing and I needed to reinstall it again, do as you please.
Why would you even want to do this you might ask? Well, I personally used this to make a few tweaks with Kernel Auditor and L Speed, two apps that will let you customize the performance of the machine to its maximum... sacrificing battery of course. You can search online for the best configuration for you for these apps. With the right tweaks, it transforms from **** to usable, and you need root for all of this.
As a quick note, you might notice that the SuperSU pop up that prompts you wether to grant or deny root access to an app is delayed, that's just how life is with this machine, it's slow. As a tip, when an app is trying to acquire root access, go back to the home screen and open the SuperSU app, then go back to the app you were trying to give it access to, it should appear quicked that way. Sometimes it's so slow that the app says I don't have root, only to have the pop up appear 10 seconds later. Now... to a final chapter.
7. UNBRICKING
This would be the end of the story if nothing went wrong, you have a rooted tablet and you can now do whatever you want with it, but that's not how life is. **** happens, things can go wrong, and when they do, you better have a backup plan. I don't know how to get back your ex, but I know how you can unbrick your tablet if that should happen. Follow these steps if you want to recover this machine...
Code:
#This process will wipe all data, but you shouldn't care about that since you can't access it anyway.
So, if the tablet doesn't turn on and gets stuck at the boot up screen, what can we do? Well, let it sit at the boot up screen for a few mins, and then type in the terminal:
Code:
adb devices
If it's recognized, then type:
Code:
adb reboot recovery
If it's not recognized, press the power button and the volume down key until the tablet turns off. Once that happens, press the power button and the volume down key, when the logo appears, let go of the power button and keep the volume down key pressed, that should boot the tablet into recovery mode. If you got into recovery mode, skip to 7.2
7.1 FIXING RECOVERY MODE
Sometimes, (it happened to me), recovery mode is broken.... it just doesn't appear, no matter what you do you can't get into it. To fix this, we gotta flash it again. We gotta enter fastboot mode. One option is to boot up the device until it gets stucked and wait a few mins, then adb should be able to recognize it and you type:
Code:
adb reboot fastboot
If that's not the case, turn the tablet off and press power and volume up, that should get you to fastboot. Once there type:
Code:
fastboot devices
And the tablet should appear there, if it doesn't... well it better do. I don't really know what to do if it doesn't appear there, but there shouldn't be a reason for it not to. I guess you can try to enter fastboot once again, with the tabler connected from the beggining or something like that, let's just assume it does, and if it doesn't then I'm sorry to tell you that's homework you will have to do.
Once here, we must format the cache and the data partition, for that type the following:
Code:
fastboot format cache
fastboot format userdata
Now, we need to get the recovery files, grab them from the zip I gave you. The files in question are "recovery.bin" and "vrl.bin". We will start with vrl. Once the two formats are finished, type:
Code:
fastboot flash vrl vrl.bin
Followed by:
Code:
fastboot flash recovery recovery.bin
Once that's done, press the power button and volume down keys until the tablet turns off. Then, press them again until the logo appears, and when that happens let go of the power button, that should get you (finally) into recovery.
7.2 UNBRICKING (FOR REAL THIS TIME)
Well, now that everybody is on the same page, and we could get to recovery mode, it's time to repeat some steps really... Follow the procedure from step 4 onwards (from the part that tells you to go to recovery). So, wipe data and apply that damn zip with sideload, the tablet should work now.
That's all I have to offer guys. I'm not a developer, I'm just a guy with a bunch of free time on his hands, so I was able to gather all of this information and (most importantly) files so you can root and fix this god damn tablet. Until the next one!
FINAL NOTE: In the files I included, there's a TWRP.img file. This is the TWRP custom recovery. As far as I know, this version should work with this tablet, but I was unable to flash it and make it work. IF YOU WANT TO TRY THIS DO SO AT YOUR OWN RISK, IT'S HIGHLY PROBABLE THAT THIS WILL RESULT IN BRICKING YOUR TABLET AND BREAKING THE STOCK RECOVERY, IN WICH CASE YOU WILL NEED TO FOLLOW THE STEPS STATED IN THIS GUIDE.
I couldn't upload the files as an attachment directly... sorry.
The "updated_firmware.zip" file is added as a separate download because it's a bigger file, and I prefer to let people decide if they even want it in the first place.
updated_firmware.zip
Everything else

None of the 8 drivers from Intel or Google detect the device in fastboot mode. I tried fixing this tablet years ago and had the fastboot drivers. As far as I know I have the same ones. These all loaded with no problem, but I could never get ADB Device to detect it in fastboot mode
Google: Android ADB Interface | Android Bootloader Interface | Android Composite ADB Interface
Intel: Android ADB Interface | Android Bootloader Interface | Intel AndroidADB Interface | Intel Android Bootloader Interface | Intel Android Composite ADB Interface

neghvar said:
None of the 8 drivers from Intel or Google detect the device in fastboot mode. I tried fixing this tablet years ago and had the fastboot drivers. As far as I know I have the same ones. These all loaded with no problem, but I could never get ADB Device to detect it in fastboot mode
Google: Android ADB Interface | Android Bootloader Interface | Android Composite ADB Interface
Intel: Android ADB Interface | Android Bootloader Interface | Intel AndroidADB Interface | Intel Android Bootloader Interface | Intel Android Composite ADB Interface
Click to expand...
Click to collapse
Make sure you enable usb debugging, no driver will work without that enabled.

tralph3 said:
Make sure you enable usb debugging, no driver will work without that enabled.
Click to expand...
Click to collapse
Not possible. This hangs during boot up or I can enter fast boot mode. It has been like this for years. Basically a soft brick. I tried to fix this years ago as stated above, but having seen this latest post about it, I decided to try again. But this time, I cannot find a fastboot driver that shows the device as attached when I run ADB devices

neghvar said:
Not possible. This hangs during boot up or I can enter fast boot mode. It has been like this for years. Basically a soft brick. I tried to fix this years ago as stated above, but having seen this latest post about it, I decided to try again. But this time, I cannot find a fastboot driver that shows the device as attached when I run ADB devices
Click to expand...
Click to collapse
Be aware that when in fastboot mode, adb devices never lists anything, you must use "fastboot devices"

tralph3 said:
Be aware that when in fastboot mode, adb devices never lists anything, you must use "fastboot devices"
Click to expand...
Click to collapse
Yep! That's where I was messing up. Thank you.
And the tablet is now working. Thank you very much.
One last question though. I tried to install the twrp.img file included in the pack
fastboot flash recovery TWRP.img
Here is what I got
Sending 'recovery' (26588 KB) (bootloader) Ready to receive: 0x019f7000 size of data
OKAY [ 0.741s]
Writing 'recovery' (bootloader) Flashing partition: recovery
FAILED (remote: ' Download image size is large than partition size')
fastboot: error: Command failed
How do I get around this if the image file is too large?

neghvar said:
Yep! That's where I was messing up. Thank you.
And the tablet is now working. Thank you very much.
One last question though. I tried to install the twrp.img file included in the pack
fastboot flash recovery TWRP.img
Here is what I got
Sending 'recovery' (26588 KB) (bootloader) Ready to receive: 0x019f7000 size of data
OKAY [ 0.741s]
Writing 'recovery' (bootloader) Flashing partition: recovery
FAILED (remote: ' Download image size is large than partition size')
fastboot: error: Command failed
How do I get around this if the image file is too large?
Click to expand...
Click to collapse
Yeah I never could get around it either. I never could install a custom recovery on this tablet, it just wasn't made for it. But hey, root is cool.

Work?
Still working?

jerryspring said:
Still working?
Click to expand...
Click to collapse
Why wouldn't it? This tablet ain't gonna change. Everything should work no problem.

Hi, any custom rom for this device to make it useful ?
It is in my drawer for more than 2 years and I just do not know what with it
Also how to play with settings in root mode so I can make it faster ?

Hey folks,
I recently followed this guide and a couple of issues.
First, I had expected all my data to be gone, which is fine. But it wasn't. I seemed to have gotten all the way through without it being reformatted, and this makes me suspect I never really achieved all the goals.
One thing I should note, in recovery boot, I had to use the volume button to select a source. No big deal, but it had not worked until I guessed I needed to do that.
Oh, and another thing is I had to install the driver package, and then after, once it was rebooted into fastboot, manually guide the device manager to select from list.
It seems after complete shutdown and then a fresh bootup, my SuperSU software was gone. So, is this only a tethered root boot? Is there a completely untethered?
After rebooting again, it seems my device will not complete booting, but I will give it some more time. I may have bricked it, though I have no idea how lol. All I did was enable USB debugging again and issued the reboot command.
I know this is an old guide, and probably long forgotten by most participants, but I recently got one of these tablets online, open box but new or like new, for around $20, and I would like to get it rooted because otherwise, it is extremely sluggish and the battery drains very fast. I read online it is google play services at fault, but I do not know for sure.
Anyway, if anyone has any updated info or alternative method to achieve full root access untethered, please advise. Unless this guide is that, in which case I just need to try again. Just out of curiosity, what is the TWRP.img for?