I tried rooting and something failed and now my shield won't boot. I have downloaded the factory image from NVidia for the 16gb version I have, my question is how do I flash this though? Thank you
enigma7820 said:
I tried rooting and something failed and now my shield won't boot. I have downloaded the factory image from NVidia for the 16gb version I have, my question is how do I flash this though? Thank you
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Have you opened Shield TV to see if there is header for serial console port? Nvidia Jetson TK1 and TX1 all have serial console port, you may be able to see boot loader messages from serial console.
Factory reset
enigma7820 said:
I tried rooting and something failed and now my shield won't boot. I have downloaded the factory image from NVidia for the 16gb version I have, my question is how do I flash this though? Thank you
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When this happens, all you have to do is either plug it into a computer or certain android devices via otg cable ( for example: the original Shield). Disconnect the power on the Shield TV. Wait about 10 seconds or so. Plug the power back in. As soon as the light has been on for about 2 seconds, hold down the power button until the bootloader screen comes up. The stupid thing is that even if you don't need to get anything from anywhere else, your Shield TV still has to have another device plugged into it's micro usb port otg style in order to get to bootloader/recovery/forced recovery/factory reset and so on
Nixin Victis said:
When this happens, all you have to do is either plug it into a computer or certain android devices via otg cable ( for example: the original Shield). Disconnect the power on the Shield TV. Wait about 10 seconds or so. Plug the power back in. As soon as the light has been on for about 2 seconds, hold down the power button until the bootloader screen comes up. The stupid thing is that even if you don't need to get anything from anywhere else, your Shield TV still has to have another device plugged into it's micro usb port otg style in order to get to bootloader/recovery/forced recovery/factory reset and so on
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This is very important hint for bootloader/recovery. I was wondering why I could not get to bootloader anymore when tried to dual boot Android and Linux, I forgot to plug the OTG cable to a PC.
Related
Hello,
when I want to set my MK808b in Flash Mode I do exactly like this:
o put the mk808 into flash mode the easy way:
1) Remove any SDcard you may have installed.
2) Connected the supplied USB cable from the device OTG port to your PC.
It will power up and windows may detect the device. DO not worry about that. We need it powered up.
3) In the ROM kit run the ROM FLash Tool.exe.
4) YOu should see at the bottom it says "Found RKAndroid Mass Storage USB"
If it does not say that go into settings and make sure that
a) USB storage is turned ON
b) Under developer options, USB debugging is turned off
5) Once it says "Found RKAndroid Mass Storage Usb" in the flash tool click the "Reboot to Flash Mode" button.
6) Wait up to at least 10 seconds. The unit should reboot and the screen for the mk808 will be black (no ouptut).
7) If the unit does not reboot to a blank screen, repeats steps above
Congrats! You are now in flash mode! To get out of it at any time just unplug the USB power to the mk808.
It will boot back up normally out of flash mode.
If reboot to flash mode does not work, then use this alternate proceedure.
In my ROM kit is another folder called alternate_reboot_to_flash_tool
This is the RKBatch tool. Run this tool and the 1 box should be pink.
If it is not pink again make sure:
a) USB storage is turned ON
b) Under developer options, USB debugging is turned off
Once you have a pink box, Click the "switch" button at the bottom and this should put it into flash mode.
Close this RKBtach tool now.
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But I always end up on the Stock Recovery Menu. Its not a black screen and my PC dont recognise any new device... What am I doing wrong?
pete23 said:
Hello,
when I want to set my MK808b in Flash Mode I do exactly like this:
But I always end up on the Stock Recovery Menu. Its not a black screen and my PC dont recognise any new device... What am I doing wrong?
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You have to set the USB computer connection to Mass Storage in the Rockchip Settings app (the icon with the yellow and white gear-wheel).
Here is a detailed video describing the whole flashing process:
http://www.youtube.com/watch?v=_mDFmP8sXNk&list=PL-x30K2aVGjfj-fyjvWm3-HsKfFJ6-y81&index=1
If it still doesn't work, try this:
Flash mode using the reset button:
If you do not ever see the flash tool say "Found RKAndroid MASS Storage USB"
Or reboot to flash mode does not work, then use this manual proceedure.
1) Have the USB cable unplugged.
2) Near the HDMI port are 2 holes in each corner. One is the blue LED hole.
The other in the corner is a reset button under the hole.
Use a paper clip or something to push the reset button in this hole.
I actually enlarged the hole so a paper clip would fit.
You will feel the button "click" when you are on it.
3) Hold this button down and while holding it, plug the USB cable from the PC to the OTG port on the mk808.
4) YOu should here windows BONG it found a new device. The LED will not light!
5) You are now in ROM flash mode. Read below for installing drivers.
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DaPhinc said:
You have to set the USB computer connection to Mass Storage in the Rockchip Settings app (the icon with the yellow and white gear-wheel).
Here is a detailed video describing the whole flashing process:
If it still doesn't work, try this:
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Hi,
thanks for the answer.
I did exactly what is shown in the video. But all I get is recovery Menu (see attached Pic). Same with reset button method.
Any Idea?
pete23 said:
Hi,
thanks for the answer.
I did exactly what is shown in the video. But all I get is recovery Menu (see attached Pic). Same with reset button method.
Any Idea?
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That's strange. Are you sure the PC is connected through the OTG port and not the power port? (OTG is on the side, power is on the end). And are you sure you have a genuine MK808B? Because there are many clones around.
DaPhinc said:
That's strange. Are you sure the PC is connected through the OTG port and not the power port? (OTG is on the side, power is on the end). And are you sure you have a genuine MK808B? Because there are many clones around.
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Yes its the OTG port on the side and yes its the MK808B. Ordered from Amazon.
Maybe its a new Version because it came with Android 4.2.2!?
pete23 said:
Yes its the OTG port on the side and yes its the MK808B. Ordered from Amazon.
Maybe its a new Version because it came with Android 4.2.2!?
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Mine also came with 4.2.2. and it worked.
Ok so long story short, i have a nexus 7 2012 which a rooted and installed cyanogen mod.
I was using it as a car install and works perfect, i'm using an otg cable to mount usb sticks, triggering soft shutdown and powering the nexus etc. So usb seems to be working fine.
Basically i removed the tablet it to modify the bootloader to turn on automatically with ac power applied, if the battery runs out i have to manually power on with button, but now i'm running into a problem.
Ever since taking the tablet out and trying to connect over usb, none of my computers detect the tablet.
I've tried different operating systems, drivers, cables etc etc.
Also changed from mtp to ptp in storage and also turned on usb debugging mode. If i connect an otg cable the nexus see's the otg and i can mount usb's etc.
So i thought i might try recover the nexus back to factory, maybe there was an issue with the rom corrupted etc, I've downloaded the original 4.2.2 firmware which is currently installed.
Booted into recovery and tried re-installing the 4.2.2 zip, it keeps aborting. A guy in work tried to use sideloader and connect via adb. no luck.
I'm not very familiar with the android platform so i've no other ideas what to do and other idea's how to recover now.
The guy i work with mentioned using a usb jig, would that be the way to go or can anyone else suggest some else that might help.
Thanks
Before you updated when was the last time you connected your N7 to your computer?
When you connect your N7 to your computer does it act like it is charging? Have you tried more than one computer? I had a similar problem with mine last year & sent it in 3 times. Asus replaced both the USB port board & the main board on different occassions. I suspect your mainboard might be faulty.
Does adb see the device
jadesse said:
Before you updated when was the last time you connected your N7 to your computer?
When you connect your N7 to your computer does it act like it is charging? Have you tried more than one computer? I had a similar problem with mine last year & sent it in 3 times. Asus replaced both the USB port board & the main board on different occassions. I suspect your mainboard might be faulty.
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I last connected the nexus to the laptop a few monts back to load some music onto it, didn't have a problem. It's only been connected to a computer maybe 3 times. once to root/rom it then another few times to load music etc.
I can't see why the usb board maybe faulty as i can read data from a usb key when the otg cable is connected.
It's a strange one. You could be right, i might try pick up a broken nexus and swap some parts. Usb board etc.
crusrod said:
Does adb see the device
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Yes adb is shown in device manager, but it's not recognizing the nexus, comes up with an error 10 , cannot start. etc etc
foster182 said:
Yes adb is shown in device manager, but it's not recognizing the nexus, comes up with an error 10 , cannot start. etc etc
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I am having this same problem on my (unrooted) HTC One after attempting to "convert" it from an AT&T to a Google Play Edition device with the procedure described here.
As part of the procedure, I attempted to flash the stock Google Play Edition ROM using fastboot commands, but I got an error message. The instructions say to just try the flash again, but the phone no longer connects properly via USB (error 10) while in bootloader mode. While in bootloader mode, the phone indicates there is some sort of problem (a line showing the OS version is highlighted in red), and attempting to enter recovery mode does nothing but display a phone with a big red X in it. The phone seems to operate fine and responds to ADB commands when the phone is fully booted, albeit with the old OS (not Google Play Edition) still in place.
Any Android device could theoretically get in this state. We're sort of "paralyzed", because everything we want to do to regain control of the bootloader and fix the situation seems to require issuing fastboot commands from a computer connected to the phone while it's in bootloader mode. Yet entering recovery mode or getting a computer to connect to it via USB no longer seems possible.
I wonder if there's another way to issue fastboot commands without relying on the USB connection to a computer?
So I purchased a Nexus 10 off eBay with the issue of when it turns on it boots up to the android guy facing up with the red ! and says no command if I hit power button and tap volume up I can get into stock recovery. I tried wiping the cache no luck I have tried factory reset no luck. So I figure I would just flash the stock image via fastboot. But I can not get my PC to recognize the tablet at all no dings or anything when I plug it in. I have downloaded the drivers for the Nexus 10 from Samsung website. I have installed google drivers. I have installed Wug's Nexus Root Toolkit and downloaded the drivers from his toolkit with no luck. When in device manager and plug in the the N10 nothing pops up in device manager. So I figure well maybe its a bad USB port on the N10 but if I plug it into a charger when its turned off it will turn on. Also if I plug my OTG drive into the N10 while its on the no command screen my OTG drive will light up like its loading so then it can't be a bad USB port. I also have tried 2 different usb cables. Any thoughts or suggestions is appreciated.
HEllo, the screen on tv saz data can not be checked i shall loock the bootloader, iv done this but it does not help, when i boot into recovery, i then put the usb cable to the pc, but there is no reaction from the pc, the pc does not see any new device, what i can do
Hi all!,
For some reason my shield stopped working, it only boots in safe mode, but no other option in the fastboot seems to work. Tried to plug in the shield to pc with a usb c to usb a cable but it is not showing up in device manager so I can't flash it. It was on stock, nothing was modded before also. Is there anyway to fix the no device on pc? i've tried to different pc and 2 cables, my phone works with those cables, it is only the shield that doesn't connect using the farthest usb from the hdmi.