NuVision TM800A510L Stuck In Bootloop- Need To Restore To Stock Firmware

[NewDogOldTrick]

Restoring Nuvision tablet stuck in boot loop. Can't find firmware.

I have:
My mom's NuVision TM800A510L (similar to Acer Iconia A1-840) stuck in boot loop.
I can get it into fastboot mode, and recovery mode waiting for ADB sideload.
ADB and fastboot recognize the connected device, but commands are ignored by the tablet.
I'm a novice, having once stumbled through a cyanogenmod flash.
Chromebook running Ubuntu, with Android SDK seemingly properly installed.

Goal:
To restore the factory OS, vanilla Android, or an alternate ROM. Anything to get it running.

I've tried:
Wiping cache, factory reset.
Can't find factory or custom rom anywhere. Customer service refused to provide it.
Following tutorials to bake a custom rom. They all seem to require a system for the tablet to start from. Creating one from scratch is over my head, unless there is a simple step-by-step somewhere.
Pulling partitions from tablet (failed command)
Pushing / flashing / SD boot of ROM for the Acer version of the tablet (format not recognized)

Does anyone happen to have the update.zip for this Nuvision device I can simply sideload? Or anything else I can try?


Specs from site's NuVision manual:
ScreenSize:8.0”Capacitive
DisplayType:IPS.Multi-Touch with Auto-Rotation
Resolution:1280x800.
OperatingSystem:Android 4.4.2 KitKat
Processor:Intel 1.8GHz QuadCore (intel atom z3735g)
System RAM:1GB DDR3
StorageInternal:16GB(TM800A510L),32GB(TM800A520L) +64GB SD card
Cameras:2MPFront;2MPRear
Wi-Fi:802.11b/g/n, Bluetooth
Inputs:microUSB,3.5mmHeadphoneJack,DC5V
Battery:HighCapacity4000mAhLithium-Polymer

 

[jladvisory]

Same problem here, have you found any solution?

 

[NewDogOldTrick]

Same problem here, have you found any solution?

Nope, I never got it working. Mom contacted the manufacturer and they did arrange a return & replacement, so that might be an option for you.

 

[Godlike12]

You can try flashing its stock rom with sp tools..download the rom from needrom.com and pm me for further instructions

 

[DaniRainbow]

You can try flashing its stock rom with sp tools..download the rom from needrom.com and pm me for further instructions

needrom does not have the rom for this model.

I have the same problem. I'm trying to use the ADB to make a ROM from what is on the tablet, but so far the only thing I can get to work ADB wise is the sideload, and that does me no good without a ROM

 

[Unidave199]

You can try flashing its stock rom with sp tools..download the rom from needrom.com and pm me for further instructions

Did anyone every find a comparable image to flash?

 

[newbie1045]

Did anyone ever find a fix for a dead nuvision TM800A510L tablet? Customer service at nuvision is USELESS!

 

[Unidave199]

At last... an answer!!

Here is the link that will finally walk you through a recovery plan!!!

https://forum.xda-developers.com/android/general/nuvision-tm800a510l-info-root-recovery-t3471186

 

[iminking]

Thanx unidave199

i have a similar problem on mine but its newer
it looks like a MacBookPro turned into a tablet but
its a NuVision tablet operating on Android 5 point something.