weird boot loop. any ideas? - Shield Q&A

ok. first off, device is a shield K1 wifi only version.
device bootloader unlocked, fastboot says "device - unlocked
initially was on TWRP 2.8.2.0 and lollipop 5.0.1
it started as booting from the NVidia logo into a black screen.
I then tried "Shield + Ram"
tried flashin CWM, superSU then bonestock firmware (4.3 JB)
rebooted and it is still in a boot loop. "NVidia powered by android"
flashing with "Shield+Ram" , CWM , ------------- booting into fastboot then recovery mode, it goes into bootloop at "NVidia powered by android"
flashing with "Shield+Ram" , "Stock Recovery" , ------------- booting into fastboot then recovery mode, it goes into bootloop at "NVidia powered by android"
flashing with Windroid universal android toolkit, default TWRP. ------------- booting into fastboot then recovery mode, it just stays stuck at "NVidia powered by android"
flashing with Windroid universal android toolkit, with twrp-2.8.6.0-shieldtablet.img. ----------------- booting into fastboot then recovery mode, it just stays stuck at "NVidia powered by android"
booting normally,it would just go into a boot loop of "NVidia powered by android"
pretty much at my wits end.
any help is much appreciated.
that said, with WinDroid, I tried flashing SuperSU, it says "No Device Found"
WinDroid detects Nvidia Shield as "Fastboot" with a blue dot on the bottom left of the window of the windows app.

I downloaded the latest 2.2.1 update from
https://developer.nvidia.com/gameworksdownload
and used fastboot commands from Shield Ram v1.1
inside the image folder. for 2.2.1 wifi only. there is a bat file called flash-all.
now attempting flash-all, currently in flashing progress. will update status.

and it works.all working now.

Related

[Q] Recovery mode hangs

When booting into recovery mode, the system hangs.
(It can boot normal without a problem)
The device had JB without root, so did the following:
1. Installed the ASUS bootloader unlock utility
2. Installed TWRP 2.3.1.0
3. Installed CleanROM 2.4
Now, when booting into recovery mode:
Via the shut-down menu, the system reboots into the white ASUS logo screen and hangs
Via power+volume Up, and selecting the [RCK] icon, the system hangs (the top left of the screen says "Booting Recovery kernel image")
I'm guessing the system is looking for a ROM file and simply can't find it.
Do you guys ROM experts know what I did wrong and what the fix might be?
After reinstalling TWRP - Recovery mode is working again!
I'll leave this post up in case it happens to anyone else.

[Q] help: acer a200 cannot enter into recovery or fastboot

i got into recovery and flashed the acer stock rom (i think its a honeycomb 3.2.1) then i mistakenly flashed onyx kernel which is for ICS. when i rebooted the tablet, an error message appears : "boot verified failed..." When i tried to get into recovery by pressing volume down and power, the following text appears:
SD update cmd: recovery
--update package = SDcard:update.zip
booting recovery kernel image
recovery verified failed
i tried to boot into fastboot by plugging it into a computer and update its drivers when the "starting fastboot us download protool" appears but nothing happend.
what should i do. help please.

Nvidia Shield Tablet Stuck in a Boot Loop

So I started off by doing a factory reset on the tablet. When it rebooted, it got stuck on a black screen just after the Nvidia Logo. Resetting it had done nothing. I was able to get into fastboot mode where I then tryed booting to recovery mode. Nothing Happened. From here I thought the only way to fix this would be to reinstall the ROM. I managed to install TWRP Recovery 2.8.7.0, but when It booted into recovery, it gave a bunch of errors that It couldn't mount a series of volumes(?) or whatever. It started formatting data and rebooted a few times. I let it do its thing. Now If I try to turn the tablet on it sits at the Nvidia Logo and if I go into fastboot and try to boot recovery I get the Android Bot with a Red Triangle and an exclamation mark in it.
What Should I do and where do I start?
Thanks Guys!

HUAWEI P20! stuck at twrp recovery LOGO and its frozen

hey,
so I guess I made a major mistake. I wanted to flash twrp recovery with this ramdisk.img , it all worked fine, I could flash it and then I entered the recovery mode via adb with the command adb reboot recovery. The recovery mode twrp logo popped up and all I can see is the name teamwin and the project version, which says 3.2.1-0 btw and the names of the developers nothing more, the screen is frozen and I can't do anything else.
I tried to reboot into fastboot and bootloader with adb but all I does is, that the screen turns off then on and then it says "your device is booting now…" and it leads me back to the teamwin logo and freez again.
I can't do a normal reboot and I can't flash another .img recovery..
I hope someone can help me please..
There must be a way to get out of this.
MrSYS said:
hey,
so I guess I made a major mistake. I wanted to flash twrp recovery with this ramdisk.img , it all worked fine, I could flash it and then I entered the recovery mode via adb with the command adb reboot recovery. The recovery mode twrp logo popped up and all I can see is the name teamwin and the project version, which says 3.2.1-0 btw and the names of the developers nothing more, the screen is frozen and I can't do anything else.
I tried to reboot into fastboot and bootloader with adb but all I does is, that the screen turns off then on and then it says "your device is booting now…" and it leads me back to the teamwin logo and freez again.
I can't do a normal reboot and I can't flash another .img recovery..
I hope someone can help me please..
There must be a way to get out of this.
Click to expand...
Click to collapse
Were you on android 9 or 8, prior to flashing twrp?
Android 9.1, however I did this but I could get back to eRecovery after I pressed the volume up key and on/off key several times. I normally rebooted my phone and now I can use it again ?
But its still frustrating that it didn't work

Need help flashing Katkiss 6.0.1 , Recovery Partition Not Found / Nothings Working

So, I just decided to try and Flash the old TF101 with Katkiss 6.0.1 and Gapps, but I always get stuck on the same problem.
My TF101 is running Android 4.0.3 ICS and USB Debugging is on
I downloaded TWRP app on the transformer, as well as the latest .blob flash file through the app.
Before this, I rooted the tablet using Kingroot.apk, which worked. When I went to flash the tablet with the recovery, the app noted "Recovery Partition not found".
I tried to boot into recovery mode on my own, (Pressing Pwr + Volume down , Then hitting Volume Up), The android screen popped, up and then flashed to a fallen android with a red triangle.... The screen stays on this for a minute and then boots into the normal system. I can't even boot into recovery through ADB, using the
Code:
adb reboot recovery
, The tablet will just reboot normally, not into recovery mode.
The Device does recognize through ADB....
Is my recovery partition just non existent? Even when I just let the system though without pressing volume up, it only gives me the option of (Android) or (Erase Data). when I click erase data, ill stay on the asus loading screen indefinitely and nothing will happen until i turn it off and on.
I just cant seem to boot into TWRP for some reason, and that means I just cant install the downloaded custom ROM.
How Can I fix this and boot into TWRP? I've tried for hours and have been hung up due to the same problem each time, even after rooting.
Did you already solve that problem? I also need a solution.Thanks

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